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Advanced Monolithic Systems
FEATURES
* Low Temperature Coefficient * Wide Operating Current Range AMS04.........................15A to 20mA AMS05.........................20A to 20mA * Max. 1 Dynamic Impedance * Typ. 2% Output tolerance
AMS04/AMS05
VOLTAGE REFERENCES
APPLICATIONS
* Battery Powered Systems * Instrumentation * A/D, D/A Converters * Current sources * Power Supplies * Telecommunication
GENERAL DESCRIPTION
The AMS04 and the AMS05 are two-terminal, band-gap voltage reference diodes, with an output voltage of 1.25V for the AMS04 and 2.5V for the AMS05. These devices feature low dynamic impedance and good temperature coefficient, operating over a wide current range. Since the band-gap reference of these devices uses only transistors and resistors, low noise and good long term stability result. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The AMS04 and AMS05 can be used for portable meters, regulators, data acquisition converters and telecommunication. The AMS04 and AMS05 are operational over a temperature range of 0C to 70C and are available in TO-92 and SO-8 packages.
ORDERING INFORMATION:
MAX. TEMPCO 50ppm/C 100ppm/C 50ppm/C 100ppm/C PACKAGE TYPE TO-92 AMS04AN AMS04BN AMS05AN AMS05BN 8 LEAD SOIC AMS04AS AMS04BS AMS05AS AMS05BS OPERATING TEMPERATURE RANGE 0 to 70C 0 to 70C 0 to 70C 0 to 70C
PIN CONNECTIONS
TO-92 Plastic Package (N)
+ 2 1
SO-8 SO Package (S)
N/C N/C 8 7 + 6 N/C 5
1
2
3
N/C N/C N/C
4 -
Bottom View Advanced Monolithic Systems, Inc.
Top View
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS04/AMS05
ABSOLUTE MAXIMUM RATINGS
Reverse Current 30mA Forward Current 10mA Operating Temperature Range 0C to 70C Storage temperature -55C to +150C Soldering information TO-92 package: 10 sec. SOIC package: Vapor phase (60 sec) Infrared (15 sec.) 260C 215C 220C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IR = 100 A, and TA = +25C unless otherwise specified. Parameter
Reverse Breakdown Voltage Reverse Dynamic Impedance Reverse Breakdown Voltage Change
Conditions
IR = 100 A IR = 100 A 15A IR 20mA 20A IR 1mA 20A IR 20mA 25A IR 1mA
Min
1.235
AMS04 Typ
1.250
Max
1.265 1
Min
2.475
AMS05 Typ
2.50
Max
2.525 1
Units
V mV
10 0.25
20 1.0 10 0.25 10 2.0 1.0 20 60
mV A V
Min. Operating Current Wide Band Noise Temperature Coeff. AMS04A/AMS05A AMS04B/AMS05B 10Hz f 10kHz IR = 100 A (Note 3) 60
50 100
50 100
ppm/C
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Note 2: For elevated temperature operation, TJ max is +100C Thermal Resistance
JA (junction to ambient)
TO-92
170C/W (0.125" leads)
SO-8
165C/W
Note 3: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating TMAX and TMIN, divided by TMAX - TMIN. The measured temperatures are 0C, 25C and 70C.
TYPICAL APPLICATIONS
Precision Current Source
AMS04 +15V 9V 50k 3 +15V 81k 2 LM312 3 IOUT* + 4 RSET 1F 360k LM312 1.2V 6 AMS04 AMS05 60k 0.1F 180k 2 4 + 7 6 VOUT = 10V
Battery Powered 1.25V Reference
10V Reference
7
* IOUT =
1.25V RSET
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS04/AMS05
TYPICAL PERFORMANCE CHARACTERISTICS
AMS04 Reverse Characteristics OUTPUT VOLTAGE CHANGE (mV) 10
TA =25 C
AMS04 Reverse Characteristics 100 REVERSE CURRENT (A) FORWARD VOLTAGE (V)
TA =25 C
AMS04 Forward Characteristics 1.2
8 6 4 2 0 -2 0.01 0.1 1 10 REVERSE CURRENT (mA) 100
10
0.8
1
0.4
TA =25 C
0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 REVERSE VOLTAGE (V)
0 0.01 0.1 1 10 100 FORWARD CURRENT (mA)
AMS04 Response Time OUTPUT VOLTAGE CHANGE (mV) 2.0 1.5 VOLTAGE SWING (V) 1.0 0.5 0
OUTPUT INPUT 100k OUTPUT
AMS05 Reverse Characteristics 16
TA =25 C
Reverse Characteristics 100
TA =25 C
12 8 4 0 -4 0.01 0.1 1 10 REVERSE CURRENT (mA) 100
REVERSE CURRENT (A)
10
~ ~
INPUT
~ ~
1
10
0 0 200 400 TIME (s) 600
0.1 0 0.5 1.0 2.5 1.5 2.0 REVERSE VOLTAGE (V) 3.0
AMS05 Forward Characteristics 1.6 FORWARD VOLTAGE (V)
TA =25 C
AMS05 Response Time 3.0
OUTPUT
1.2
VOLTAGE SWING (V)
2.0 1.0 0 10 0
INPUT 100k OUTPUT
0.8
~ ~
INPUT
~ ~
0.4
0 0.01 0.1 1 10 100 FORWARD CURRENT (mA)
0
200 400 TIME (s)
600
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS04/AMS05
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3 LEAD TO-92 PLASTIC PACKAGE (N)
0.0600.005 (1.5240.127) DIA
0.1800.005 (4.5720.127) 0.0600.010 (1.5240.254) 0.1400.010 (3.5560.127)
0.1800.005 (4.5720.127)
0.90 (2.286) NOM
5 NOM 0.500 (12.70) MIN
10 NOM
0.050 (1.270) MAX
UNCONTROLLED LEAD DIMENSIONS
0.0500.005 (1.2700.127)
0.0160.003 (0.4060.076)
0.0150.002 (0.3810.051)
N (TO-92 ) AMS DRW# 042391
8 LEAD SOIC PLASTIC PACKAGE (S)
0.189-0.197* (4.801-5.004) 8 7 6 5
0.228-0.244 (5.791-6.197)
0.150-0.157** (3.810-3.988)
1
2
3
4
0.053-0.069 (1.346-1.752) 0.004-0.010 (0.101-0.254) 0.008-0.010 (0.203-0.254)
0.010-0.020 x 45 (0.254-0.508) 0-8 TYP
0.014-0.019 (0.355-0.483)
0.050 (1.270) TYP
0.016-0.050 (0.406-1.270)
S (SO-8 ) AMS DRW# 042293
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

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