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LT1178/LT1179 17A Max, Dual and Quad, Single Supply, Precision Op Amps
FEATURES

DESCRIPTIO
17A Max Supply Current per Amplifier 70V Max Offset Voltage 250pA Max Offset Current 5nA Max Input Bias Current 0.9VP-P 0.1Hz to 10Hz Voltage Noise 1.5pAP-P 0.1Hz to 10Hz Current Noise 0.5V/C Offset Voltage Drift 85kHz Gain-Bandwidth Product 0.04V/s Slew Rate Single Supply Operation: Input Voltage Range Includes Ground Output Swings to Ground While Sinking Current No Pull Down Resistors are Needed Output Sources and Sinks 5mA Load Current
The LT (R)1178 is a micropower dual op amp in the standard 8-pin configuration; the LT1179 is a micropower quad op amp offered in the standard 14-pin packages. Both devices are optimized for single supply operation at 5V. Specifications are also provided at 15V supplies. The extremely low supply current is combined with true precision specifications: offset voltage is 30V, offset current is 50pA. Both offset parameters have low drift with temperature. The 1.5pAp-p current noise and picoampere offset current permit the use of megaohm level source resistors without introducing serious errors. Voltage noise, at 0.9Vp-p, is remarkably low considering the low supply current. Both the LT1178 and LT1179 can be operated from a single supply (as low as one lithium cell or two NiCd batteries). The input range goes below ground. The all-NPN output stage swings to within a few millivolts of ground while sinking current--no power consuming pull down resistors are needed. For applications where three times higher supply current is acceptable, the micropower LT1077 single, LT1078 dual and LT1079 quad are recommended. The LT1077/78/79 have significantly higher bandwidth, slew rate, lower voltage noise and better output drive capability.
APPLICATIO S

Battery or Solar Powered Systems Portable Instrumentation Remote Sensor Amplifier Satellite Circuitry Micropower Sample-and-Hold Thermocouple Amplifier Micropower Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
2
Self-Buffered, Dual Output, Micropower Reference
20
Supply Current vs Temperature
SUPPLY CURRENT PER AMPLIFIER (A)
-
1/2 LT1178 1 4V TO 9V 5 250k* 6 1.2365V OUTPUT
18
3
+
4
16 VS = 5V, 0V 14 VS = 1.5V 12
+ -
8 7 2.470V OUTPUT
1/2 LT1178
0.1F 1M*
0.1F
LT1004-1.2
2M 1M*
* = 0.1% FILM RESISTORS TOTAL BATTERY CURRENT = 28A OUTPUT ACCURACY = 0.4% MAX TEMPERATURE COEFFICIENT = 20ppm/C LOAD REGULATION = 25ppm/mA, IL 5mA, V + 5V LINE REGULATION = 10ppm/V LT1178/LT1179 * TA01
10 -50
-25
U
VS = 15V 25 50 0 TEMPERATURE (C) 75 100
LT1178/LT1179 * TA02
U
U
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1
LT1178/LT1179
ABSOLUTE AXI U RATI GS (Note 1)
Operating Temperature Range LT1178I/LT1179I .................................. -40C to 85C LT1178C/LT1178S/LT1179C/LT1179S .......0C to 70C Storage Temperature Range ................ -65C to 150C Lead Temperature (Soldering, 10 sec.)................. 300C Supply Voltage ...................................................... 22V Differential Input Voltage ....................................... 30V Input Voltage ............... Equal to Positive Supply Voltage Input Voltage ............5V Below Negative Supply Voltage Output Short-Circuit Duration .......................... Indefinite
PACKAGE/ORDER I FOR ATIO
TOP VIEW V+ OUT A
1 A B ++ - 5 8
OUT B
7
ORDER PART NUMBER LT1178ACH LT1178CH
TOP VIEW OUT A 1 -IN A 2 A +IN A 3 + -4 V 8 V+ 7 OUT B
B+
-IN A 2 IN A
3
-
-IN B
+ IN B V - (CASE)
4
H PACKAGE 8-LEAD TO-5 METAL CAN
N PACKAGE 8-LEAD PDIP TJMAX = 100C, JA = 150C/W J PACKAGE 8-LEAD CERDIP
OBSOLETE PACKAGE
Consider the N8 or S8 Package for Alternate Source
TOP VIEW OUT A 1 -IN A 2 A +IN A 3 + V+ 4 +IN B 5 + B -IN B 6 OUT B 7 14 OUT D
D+ 12 +IN D
13 -IN D 11 V -
ORDER PART NUMBER LT1179ACN LT1179CN LT1179IN
Not Recommended. Use LT1178S8 for New Designs.
TOP VIEW NC 1 NC 2 OUT A 3 -IN A 4 +IN A 5 V- 6 NC 7 NC 8 LT1178
16 NC 15 NC 14 V + 13 OUT B 12 -IN B 11 +IN B 10 NC 9
+ 10 +IN C C9 -IN C
8 OUT C
N PACKAGE 14-LEAD PDIP TJMAX = 110C, JA = 130C/W J PACKAGE 14-LEAD CERAMIC DIP
OBSOLETE PACKAGE
Consider the N14 Package for Alternate Source
LT1179ACJ LT1179CJ
Consult LTC Marketing for parts specified with wider operating temperature ranges. Please note that the LT1178S8 surface mount pinout differs from that of the LT1178 standard plastic or ceramic dual-in-line packages. For similiar performance with standard pinout, see the LT2178.
ELECTRICAL CHARACTERISTICS
SYMBOL VOS PARAMETER Input Offset Voltage LT1178 LT1179 LT1178SW LT1179SW LT1178S8
VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25C, unless noted.
LT1178AC/LT1179AC MIN TYP MAX 30 35 70 100 LT1178I/C/S/LT1179I/C/S MIN TYP MAX 40 40 80 90 60 0.6 0.25 0.05 0.35 120 150 450 600 180 UNITS V V V V V V/Mo nA
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CONDITIONS (NOTE 2)
VOS Time IOS
Long Term Input Offset Voltage Stability Input Offset Current
2
U
U
W
WW
U
W
ORDER PART NUMBER LT1178ACN8 LT1178CN8 LT1178IN8 LT1178ACJ8 LT1178CJ8
+IN A 1 V-
2
TOP VIEW
+A + B -
ORDER PART NUMBER
8 7 6 5
- IN A OUT A V+ OUT B
6 -IN B 5 +IN B
LT1178S8 PART MARKING 1178
+IN B 3 - IN B 4
S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150C, JA = 200C/W
ORDER PART NUMBER LT1178SW LT1179SW
OUT A 1 -IN A 2 +IN A 3 V+ 4 +IN B 5 -IN B 6 OUT B 7 NC 8
TOP VIEW
16 OUT D 15 -IN D 14 +IN D 13 V - 12 +IN C 11 -IN C 10 OUT C 9 NC
LT1179
NC
SW PACKAGE 16-LEAD PLASTIC SO WIDE TJMAX = 150C, JA = 90C/W
SW PACKAGE 16-LEAD PLASTIC SO WIDE TJMAX = 150C, JA = 90C/W
LT11778/1179 * POI01
0.5 0.05
LT1178/LT1179
ELECTRICAL CHARACTERISTICS
SYMBOL IB en PARAMETER Input Bias Current Input Noise Voltage Input Noise Voltage Density in Input Noise Current Input Noise Current Density Input Resistance Differential Mode Common Mode Input Voltage Range CMRR PSRR AVOL Common Mode Rejection Ratio VCM = 0V to 3.5V Power Supply Rejection Ratio Large Signal Voltage Gain VS = 2.2V to 12V
VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25C, unless noted.
LT1178AC/LT1179AC MIN TYP MAX 3 5 2.0 75 65 2.5 0.07 LT1178I/C/S/LT1179I/C/S MIN TYP MAX 3 0.9 50 49 1.5 0.03 0.01 0.6 3.5 0 90 92 110 70 9 0.6 160 4.2 3.5 0.013 2.0 12 3.9 -0.3 102 104 700 200 6.5 0.2 120 4.4 3.8 0.025 60 18 17 14 13 130 2.2 2.0 2.2 21 20 9 0.6 160 6 UNITS nA VP-P nV/Hz nV/Hz pAp-p pA/Hz pA/Hz G G V V dB dB V/mV V/mV mV mV mV V V V/s kHz A A dB V
CONDITIONS (NOTE 2)
0.1Hz to 10Hz (Note 3) fO = 10Hz (Note 3) fO = 1000Hz (Note 3) 0.1Hz to 10Hz (Note 3) fO = 10Hz (Note 3) fO = 1000Hz (Note 4) 0.8 3.5 0 93 94 140 80
0.9 50 49 1.5 0.03 0.01 2.0 12 3.9 -0.3 103 104 700 200 6.5 0.2 120 4.4 3.8 0.025 60 13 12 130 2.0
VO = 0.03V to 4V, No Load (Note 4) VO = 0.03V to 3.5V, RL = 50k Output Low, No Load Output Low, 2k to GND Output Low, ISINK = 100A Output High, No Load Output High 2k to GND AV = 1, CL = 10pF (Note 4) fO 5kHz VS = 1.5V, VO = 0V VIN = 3V, RL = 10k (Note 5)
Maximum Output Voltage Swing
4.2 3.5 0.013
SR GBW IS
Slew Rate Gain Bandwidth Product Supply Current per Amplifier Channel Separation Minimum Supply Voltage
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LT1178/LT1179
ELECTRICAL CHARACTERISTICS
SYMBOL VOS VOS/T IOS IB CMRR PSRR AVOL PARAMETER lnput Offset Voltage Input Offset Voltage Drift Input Offset Current Input Bias Current Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing CONDITIONS LT1178 LT1179 (Note 6)
The denotes specifications which apply over the full operating temperature range of -40C TA 85C for I grades, 0C TA 70C for SW grades, VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, unless noted. (Note 7)
LT1178I/LT1179I MIN TYP MAX

LT1178SW/LT1179SW MIN TYP MAX 120 130 0.8 0.06 3 86 88 80 45 100 102 500 160 8 140 4.3 3.8 15 11 190 650 800 4.5 0.50 7
UNITS V V V/C nA nA dB dB V/mV V/mV mV mV V V A
80 80 0.6 0.07 4 84 86 55 35 98 100 350 130 9 160 4.2 3.7 15
315 345 3.0 0.7 8
VCM = 0.05V to 3.2V I grade VCM = 0V to 3.4V S grade VS = 3.0V to 12V I grade VS = 2.5V to 12V S grade

VO = 0.05V to 4V, No Load (Note 4) VO = 0.05V to 3.5V, RL = 50k Output Low, No Load Output Low, ISINK = 100A Output High, No Load Output High, 2k to GND

13 220 4.1 3.3 27
3.9 3.0
IS
Supply Current per Amplifier
24
The denotes specifications which apply over the full operating temperature range of 0C TA 70C, VS = 5V, 0V, VCM = 0.1V, VO = 1.4V, unless noted.
SYMBOL VOS PARAMETER lnput Offset Voltage CONDITIONS LT1178 LT1178S8 LT1179 (Note 6) LT1178S8

LT1178AC/LT1179AC MIN TYP MAX 50 60 0.5 0.06 3 90 90 105 55 101 102 500 160 8 140 4.3 3.8 14 11 190 170 200 2.2 0.35 6
LT1178C/S8/LT1179C MIN TYP MAX 65 85 70 0.6 0.6 0.06 3 86 88 80 45 100 102 500 160 8 140 4.3 3.8 15 11 190 250 350 290 3.0 3.5 0.50 7
UNITS V V V V/C V/C nA nA dB dB V/mV V/mV mV mV V V A
VOS/T IOS IB CMRR PSRR AVOL
Input Offset Voltage Drift Input Offset Current Input Bias Current
Common Mode Rejection Ratio VCM = 0V to 3.4V Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing VS = 2.5V to 12V VO = 0.05V to 4V, No Load (Note 4) VO = 0.05V to 3.5V, RL = 50k Output Low, No Load Output Low, ISINK = 100A Output High, No Load Output High, 2k to GND
4.1 3.3
4.1 3.3 21
IS
Supply Current per Amplifier
24
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LT1178/LT1179
ELECTRICAL CHARACTERISTICS VS = 15V, TA = 25C, unless noted.
SYMBOL VOS PARAMETER Input Offset Voltage LT1178SW LT1179SW LT1178S8 IOS IB lnput Offset Current Input Bias Current Input Voltage Range CMRR PSRR AVOL VOUT SR GBW IS Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing Slew Rate Gain Bandwidth Product Supply Current per Amplifier VCM = 13.5V, -15V VS = 5V, 0V to 18V VO = 10V, RL = 50k VO = 10V, No Load RL = 50k RL = 2k AV = 1 fO 5kHz 13.5 -15.0 97 96 300 600 13.0 11.0 0.02 0.05 3 13.9 -15.3 106 112 1200 2500 14.2 12.7 0.04 85 16 21 0.25 5 13.5 -15.0 94 94 250 400 13.0 11.0 0.02 CONDITIONS LT1178AC/LT1179AC MIN TYP MAX 80 350 LT1178I/C/S/LT1179I/C/S MIN TYP MAX 100 150 160 120 0.05 3 13.9 -15.3 106 112 1000 2500 14.2 12.7 0.04 85 17 25 480 900 1050 350 0.35 6 UNITS V V V V nA nA V V dB dB V/mV V/mV V V V/s kHz A
The denotes specifications which apply over the full operating temperature range of -40C TA 85C for I grades, 0C TA 70C for SW grades, VS = 15V, unless noted.
SYMBOL VOS VOS/T IOS IB AVOL CMRR PSRR IS PARAMETER lnput Offset Voltage Input Offset Voltage Drift Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Maximum Output Voltage Swing Supply Current per Amplifier VO = 10V, RL = 50k VCM = 13V, -14.9V VS = 5V, 0V to 18V RL = 5k CONDITIONS LT1178 LT1179 (Note 6)

LT1178I/LT1179I MIN TYP MAX 130 130 0.7 0.07 4 100 88 88 11.0 500 103 109 13.5 19 30 740 740 4.0 0.7 8
LT1178SW/LT1179SW MIN TYP MAX 190 200 0.9 0.06 3 150 91 91 11.0 750 104 110 13.5 18 28 1150 1300 5.5 0.35 7
UNITS V V V/C nA nA V/mV dB dB V A
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LT1178/LT1179
ELECTRICAL CHARACTERISTICS
ture range of 0C TA 70C, VS = 15V, unless noted.
SYMBOL VOS VOS/T IOS IB AVOL CMRR PSRR IS PARAMETER lnput Offset Voltage LT1178S8 Input Offset Voltage Drift Input Offset Current Input Bias Current Large-Signal Voltage Gain Common Mode Rejection Ratio Power Supply Rejection Ratio Maximum Output Voltage Swing Supply Current per Amplifier (Note 6) LT1178S8 CONDITIONS
The denotes specifications which apply over the full operating temperaLT1178AC/LT1179AC MIN TYP MAX

LT1178C/S8/LT1179C MIN TYP MAX 130 150 0.7 0.7 0.06 3 150 91 91 11.0 750 104 110 13.6 18 28 660 540 4.0 3.8 0.35 7
UNITS V V V/C V/C nA nA V/mV dB dB V A
100 0.6 0.06 3 200 94 93 11.0 800 104 110 13.6 17
480 2.8 0.35 6
VO = 10V, RL = 50k VCM = 13V, -15V VS = 5V, 0V to 18V RL = 5k

24
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers; (i.e., out of 100 LT1179s, or 100 LT1178s, typically 240 op amps, or 120, will be better than the indicated specification). Note 3: This parameter is tested on a sample basis only. All noise parameters are tested with VS = 2.5, VO = 0V.
Note 4: This parameter is guaranteed by design and is not tested. Note 5: Power supply rejection ratio is measured at the minimum supply voltage. The op amps actually work at 1.7V supply but with a typical offset skew of -300V. Note 6: This parameter is not 100% tested. Note 7: During testing at -40C, the 5V power supply turn on-time is less than 0.5 seconds.
TYPICAL PERFOR A CE CHARACTERISTICS
Input Offset Voltage Distribution N, J, H Package
2000 980 LT1178N8 190 LT1178J8 190 LT1178H8 702 LT1179N 144 LT1179J 6104 OP AMPS TESTED VS = 5V, 0V TA = 25C
OFFSET VOLTAGE SHIFT (V)
NUMBER OF OP AMPS
NUMBER OF OP AMPS
1500
1000
500
0 -150 -100
-50 0 50 OFFSET VOLTAGE (V)
6
UW
100
Input Offset Voltage Distribution Surface Mount Package
800
100
Minimum Supply Voltage
V - = 0V 85C 25C - 40C
VS = 5V, 0V TA = 25C
600
262 LT1178SW 342 LT1179SW 1892 OP AMPS TESTED
0 -100 -200 -300
400
200
NON-FUNCTIONAL - 400 -500
150
0 - 600 - 400
- 200 0 200 OFFSET VOLTAGE (V)
400
600
0
2 3 1 POSITIVE SUPPLY VOLTAGE (V)
LT1178/LT1179 * TPC03
LT1178/LT1179 * TPC01
LT1178/LT1179 * TPC02
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LT1178/LT1179 TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias and Offset Currents vs Temperature
100
INPUT OFFSET CURRENT (pA)
SHORT-CIRCUIT CURRENT (mA) SINKING SOURCING
VS = 5V, 0V
SATURATION VOLTAGE (mV)
75 50 25 -2.5 IOS
INPUT BIAS CURRENT (nA)
-3.0 -3.5 - 4.0 -50
IB
-25
50 25 0 TEMPERATURE (C)
0.1Hz to 10Hz Noise
VS = 2.5V, TA = 25C
VOLTAGE NOISE DENSITY (nV/Hz) CURRENT NOISE DENSITY (fA/Hz)
NOISE VOLTAGE (0.4V/DIV)
NOISE VOLTAGE (0.4V/DIV)
CHANNEL A
CHANNEL B 0 2 8 4 6 TIME (SECONDS) 10 12
Voltage Gain vs Frequency
140 120 TA = 25C
30
VOLTAGE GAIN (V/V)
VOLTAGE GAIN (dB)
VOLTAGE GAIN (dB)
100 80 60 40 20 0 -20 0.001 0.01 0.1 1 10 100 1k 10k 100k 1M FREQUENCY (Hz)
LT1178/LT1179 * TPC10
VS = 15V VS = 5V, 0V
UW
75
Output Saturation vs Temperature vs Sink Current
1000 VS = 5V, 0V
Short-Circuit Current
20
VS = 5V, 0V VS = 15V
ISINK = 1mA ISINK = 100A
100 ISINK = 1A 10 NO LOAD 10k TO GROUND 1 2k TO GROUND 0.1 -50
10
VS = 2.5V
0
VS = 2.5V
- 10
- 20
VS = 15V
100
-25
50 25 0 TEMPERATURE (C)
75
100
- 30
2 0 1 TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
LT1178/LT1179 * TPC06
LT1178/LT1179 * TPC04
LT1178/LT1179 * TPC05
0.01Hz to 10Hz Noise
VS = 2.5V, TA = 25C
1000
Noise Spectrum
VS = 2.5V TA = 25C 300 CURRENT NOISE 100 VOLTAGE NOISE 30 1/f CORNER 0.5Hz
CHANNEL A
CHANNEL B 0 20 80 40 60 TIME (SECONDS) 100 120
10 0.1
1
10 100 FREQUENCY (Hz)
1k
LT1178/LT1179 * TPC07
LT1178/LT1179 * TPC08
LT1178/LT1179 * TPC09
Gain, Phase vs Frequency
TA = 25C NO LOAD 100 PHASE 15V 120 140 10 PHASE 5V, 0V GAIN 5V, 0V GAIN 15V - 10 10k 100k FREQUENCY (Hz) 160 180 200 220 240 1M
LT1178/LT1179 * TPC11
Voltage Gain vs Load Resistance
80
10M VS = 15V, TA = 25C
PHASE SHIFT (DEGREES)
20
1M
100k
VS = 5V, 0V, TA = 25C VS = 5V, 0V, TA = 85C
0
10k 10k
100k 1M LOAD RESISTANCE TO GROUND ()
10M
LT1178/LT1179 * TPC12
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LT1178/LT1179 TYPICAL PERFOR A CE CHARACTERISTICS
Capacitive Load Handling
120 VS = 5V, 0V 100 OVERSHOOT (%) AV = 1
60 40 20 0 10 100 1000 CAPACITIVE LOAD (pF) 10,000
AV = 5
AV = 10
AV = 1 CL = 12pF
500s/DIV
1V/DIV
AV = 1 100s/DIV CL = 12pF INPUT PULSE = 0V TO 3.8V
LT1178/LT1179 * TPC13
80
Small-Signal Transient Response VS = 2.5V
20mV/DIV
20mV/DIV
20mV/DIV
AV = 1 CL = 12pF
20s/DIV
AV = 1 CL = 12pF
20s/DIV
AV = 1 20s/DIV CL = 12pF INPUT 50 TO 150mV
Common Mode Rejection Ratio vs Frequency
120
COMMON MODE REJECTION RATIO (dB)
Power Supply Rejection Ratio vs Frequency
120
POWER SUPPLY REJECTION RATIO (dB)
Closed Loop Output Impedance
10k
TA = 25C VS = 15V
100 80 VS = 5V, 0V 60 40 20 0 1 10 100 1k FREQUENCY (Hz) 10k 100k
100
OUTPUT IMPEDANCE ()
80 60 40 20 0
1k
ACL = 100 ACL = 1
POSITIVE SUPPLY NEGATIVE SUPPLY
100
ACL = 10
10 VS = 5V, 0V IL = 0 TA = 25C 10 100 10k 1k FREQUENCY (Hz) 100k
VS = 2.5V + 1Vp-p SINE WAVE TA = 25C 0.1 1 10 100 1k FREQUENCY (Hz) 10k 100k
1
LT1178/LT1179 * TPC19
LT1188/LT1189 * TPC20
LT1178/1179 * TPC21
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-100mV
UW
Large-Signal Transient Response VS = 15V
Large-Signal Transient Response VS = 5V, 0V
Small-Signal Transient Response VS = 15V
Small-Signal Transient Response VS = 5V, 0V
LT1178/LT1179
APPLICATIO S I FOR ATIO
Please see the LT1078/LT1079 data sheet for applications information. All comments relating to specifications, single
1.5M
Micropower 100Hz to 1MHz V-to-F Converter
7V TO 10V 100k 220k* 50k 1MHz TRIM 100Hz TRIM 240k TYPICAL 1N4148 NC 12k VIN 0V TO 5V
+
A1 1/2 LT1178
47k 0.01F
Q8 2N3906
-
2k
0.33F
3pF
2F LTC201 IN1 V+ LINEARITY IS 0.02% QUIESCENT CURRENT IS 90A SUPPLY CURRENT IS 360A AT 1MHz DRIFT 50ppm/C *TRW MTR/5 + 120ppm/C
S1 D1 D2 0.022F S2
500pF POLYSTYRENE
S3 D3 D4 S4
SI PLIFIED SCHE ATIC
10k 10k 2.2k 5.6k 1.3k
Q5
Q6
Q16
Q14
Q15
Q3 Q4
Q24
Q29 C1 50pF
8.6k Q12 4 Q11 600 Q1 Q21 Q2 Q22 Q28 V+ Q39 Q9 C2 175pF Q7 Q8 Q10 Q17 Q20 2A 3k Q18 C3 40pF Q19 1 Q27 C5 2.5pF
- IN + IN
600
6.2k
6.2k
U
supply operation and phase reversal protection are directly applicable to the LT1178/LT1179.
100
W
W
UU
+
1F
+
1F
A2 1/2 LT1178
+ -
10k
LT1004- 2.5
Q7 2N3904 VDD CLK 74C14 10M FOUT CD4024 VSS Q7
RESET
IN3
IN4 V- IN2 GND
LT1178/LT1179 * AI01
W
1/2 LT1178 1/4 LT1179
6.4k Q54 1 1 Q32 Q47 Q37 1 Q30 3
Q25
V+
33k Q53 2
11.5k
12.5k
Q52 Q46 V-
3k Q35 2.9k Q26 30 Q44 150k V+
Q40 Q41
C4 4pF
OUT Q31 Q36
J1 Q33 Q50 Q42 Q48 Q49
Q23 V+ Q45 10k Q34 30 Q38 2A 5.35k Q51 Q55 9.1k Q43 A 700k V- 700k
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LT1178/LT1179
PACKAGE DESCRIPTIO U
H Package 8-Lead TO-5 Metal Can (.230 Inch PCD)
(Reference LTC DWG # 05-08-1321)
.016 - .021** (0.406 - 0.533) .027 - .045 (0.686 - 1.143) 45TYP .028 - .034 (0.711 - 0.864) PIN 1 .050 (1.270) MAX GAUGE PLANE .165 - .185 (4.191 - 4.699) REFERENCE PLANE .500 - .750 (12.700 - 19.050) .110 - .160 (2.794 - 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE .016 - .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 - 0.610) H8 (TO-5) 0.230 PCD 0801 .230 (5.842) TYP
.335 - .370 (8.509 - 9.398) DIA .305 - .335 (7.747 - 8.509) .040 (1.016) MAX
SEATING PLANE .010 - .045* (0.254 - 1.143)
J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.200 (5.080) MAX .015 - .060 (0.381 - 1.524) .005 (0.127) MIN .405 (10.287) MAX 8 7 6 5
.300 BSC (7.62 BSC)
CORNER LEADS OPTION (4 PLCS)
.008 - .018 (0.203 - 0.457)
0 - 15
.023 - .045 (0.584 - 1.143) HALF LEAD OPTION .045 - .068 (1.143 - 1.650) FULL LEAD OPTION
.025 (0.635) RAD TYP 1 2 3
.220 - .310 (5.588 - 7.874)
4
.045 - .065 (1.143 - 1.651) .014 - .026 (0.360 - 0.660) .100 (2.54) BSC
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
.125 3.175 MIN
J8 0801
J Package 14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.300 BSC (7.62 BSC) .200 (5.080) MAX .015 - .060 (0.381 - 1.524) .005 (0.127) MIN .785 (19.939) MAX 14 13 12 11 10 9 8
.008 - .018 (0.203 - 0.457)
0 - 15 .025 (0.635) .125 RAD TYP (3.175) MIN
J14 0801
.220 - .310 (5.588 - 7.874)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
.045 - .065 (1.143 - 1.651) .014 - .026 (0.360 - 0.660)
.100 (2.54) BSC
1
2
3
4
5
6
7
OBSOLETE PACKAGES
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LT1178/LT1179
PACKAGE DESCRIPTIO U
N8 Package 8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.400* (10.160) MAX 8 7 6 5 .255 .015* (6.477 0.381) 1 .300 - .325 (7.620 - 8.255) 2 3 4 .130 .005 (3.302 0.127) .045 - .065 (1.143 - 1.651) .065 (1.651) TYP .120 (3.048) .020 MIN (0.508) MIN .018 .003 (0.457 0.076)
N8 1002
.008 - .015 (0.203 - 0.381) +.035 .325 -.015
(
8.255
+0.889 -0.381
)
.100 (2.54) BSC
INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
NOTE: 1. DIMENSIONS ARE
N Package 14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.770* (19.558) MAX 14 13 12 11 10 9 8
.255 .015* (6.477 0.381)
1 .300 - .325 (7.620 - 8.255) .130 .005 (3.302 0.127) .020 (0.508) MIN .008 - .015 (0.203 - 0.381) +.035 .325 -.015
2
3
4
5
6
7
.045 - .065 (1.143 - 1.651)
.065 (1.651) TYP .120 (3.048) MIN .005 (0.125) .100 MIN (2.54) BSC .018 .003 (0.457 0.076)
(
8.255
+0.889 -0.381
)
INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
NOTE: 1. DIMENSIONS ARE
N14 1002
11789fb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
LT1178/LT1179
PACKAGE DESCRIPTIO
.050 BSC
8 N N .245 MIN .160 .005 .228 - .244 (5.791 - 6.197) 1 2 3 N/2
.030 .005 TYP
RECOMMENDED SOLDER PAD LAYOUT
.010 - .020 x 45 (0.254 - 0.508) .008 - .010 (0.203 - 0.254) 0- 8 TYP
NOTE: 1. DIMENSIONS IN
.014 - .019 (0.355 - 0.483) TYP INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
.030 .005 TYP N
.420 MIN
1
2
3
RECOMMENDED SOLDER PAD LAYOUT 1 .291 - .299 (7.391 - 7.595) NOTE 4 .010 - .029 x 45 (0.254 - 0.737)
0 - 8 TYP
.005 (0.127) RAD MIN
.009 - .013 (0.229 - 0.330)
NOTE 3 .016 - .050 (0.406 - 1.270)
NOTE: 1. DIMENSIONS IN
INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS 4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507
U
S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.045 .005
.189 - .197 (4.801 - 5.004) NOTE 3 7 6 5 .150 - .157 (3.810 - 3.988) NOTE 3 N/2 1 2 3 4 .053 - .069 (1.346 - 1.752) .004 - .010 (0.101 - 0.254) .016 - .050 (0.406 - 1.270) .050 (1.270) BSC
SO8 0502
SW Package 16-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
.050 BSC .045 .005 .398 - .413 (10.109 - 10.490) NOTE 4 16 15 14 13 12 11 10 9
N .325 .005 NOTE 3 .394 - .419 (10.007 - 10.643)
N/2
N/2
2
3
4
5
6
7
8
.093 - .104 (2.362 - 2.642)
.037 - .045 (0.940 - 1.143)
.050 (1.270) BSC
.004 - .012 (0.102 - 0.305)
.014 - .019 (0.356 - 0.482) TYP
S16 (WIDE) 0502
11789fb LW/TP 1102 1K REV B * PRINTED IN USA
www.linear.com
LINEAR TECHNOLOGY CORPORATION 1991

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