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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
D D D D D D
Fast Response Times Strobe Capability Maximum Input Bias Current . . . 300 nA Maximum Input Offset Current . . . 70 nA Can Operate From Single 5-V Supply Designed to Be Interchangeable With National Semiconductor LM111, LM211, and LM311
LM111 . . . J PACKAGE (TOP VIEW)
NC EMIT OUT IN + IN - NC VCC - BALANCE
1 2 3 4 5 6 7
14 13 12 11 10 9 8
NC NC NC VCC + NC COL OUT BAL/STRB
description
The LM111, LM211, and LM311 are single high-speed voltage comparators. These devices are designed to operate from a wide range of power supply voltages, including 15-V supplies for operational amplifiers and 5-V supplies for logic systems. The output levels are compatible with most TTL and MOS circuits. These comparators are capable of driving lamps or relays and switching voltages up to 50 V at 50 mA. All inputs and outputs can be isolated from system ground. The outputs can drive loads referenced to ground, VCC + or VCC -. Offset balancing and strobe capabilities are available, and the outputs can be wire-OR connected. If the strobe is low, the output will be in the off state regardless of the differential input. The LM111 is characterized for operation over the full military range of - 55C to 125C. The LM211 is characterized for operation from - 40C to 85C, and the LM311 is characterized for operation from 0C to 70C.
LM111 . . . JG PACKAGE LM211, LM311 . . . D, DB, P, OR PW PACKAGE (TOP VIEW)
EMIT OUT IN + IN - VCC -
1 2 3 4
8 7 6 5
VCC + COL OUT BAL/STRB BALANCE
LM111 . . . U PACKAGE (TOP VIEW)
EMIT OUT IN + IN - NC VCC -
*1 2
3 4 5
10 9 8 7 6
VCC + COL OUT NC BAL/STRB BALANCE
LM111 . . . FK PACKAGE (TOP VIEW)
functional block diagram
BALANCE BAL/STRB + COL OUT EMIT OUT
IN+
IN-
-
NC IN + NC IN - NC
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
NC EMIT OUT NC VCC + NC NC COL OUT NC BAL/STRB NC
Copyright (c) 1992, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
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NC VCC - NC BALANCE NC
1
LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
AVAILABLE OPTIONS PACKAGED DEVICES TA VIOmax at 25C SMALL OUTLINE (D) LM311D SSOP (DB) CHIP CERAMIC CARRIER DIP (FK) (J) CERAMIC DIP (JG) PLASTIC DIP (P) LM311P TSSOP (PW) FLATPACK (U) CHIP FORM (Y)
0C to 70C - 40C to 85C
7.5 mV
LM311DBLE
LM311PWLE
LM311Y
3 mV
LM211D
LM211P
- 55C to 3 mV LM111FK LM111J LM111JG LM111U 125C The D package is available taped and reeled. Add the suffix R (e.g., LM311DR). The DB and PW packages are only available left-end taped and reeled.
schematic
BAL/STRB BALANCE 300 VCC + 1.3 k 1.3 k 750 70 1.2 k 600
300
IN +
1.2 k 4 k
COL OUT IN - 400 60 450 250 200 2 k 4 EMIT OUT VCC - Component Count Resistors Diodes Epifet Transistors 20 2 1 22 600 130
All resistor values shown are nominal.
2
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
LM311Y chip information
This chip, when properly assembled, displays characteristics similar to the LM311. Thermal compression or ultrasonic bonding may be used on the doped-aluminum bonding pads. Chips may be mounted with conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
(1)
(8) (5) BALANCE (7) IN+ (2) + (3) (6) (4) - VCC+ (8)
COL OUT (7)
(2)
IN- BAL/STRB
62
(1)
VCC - EMIT OUT
(3) CHIP THICKNESS: 15 TYPICAL (4) (5) 50 (6) BONDING PADS: 4 x 4 MINIMUM TJ max = 150C TOLERANCES ARE 10%. ALL DIMENSIONS ARE IN MILS.
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V Supply voltage, VCC- (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 18 V Supply voltage, VCC+ - VCC- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Input voltage, VI (either input, see Notes 1 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V Voltage from emitter output to VCC - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Voltage from collector output to VCC - : LM111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V LM211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V LM311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Duration of output short circuit (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 s Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, TA: LM111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to 125C LM211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40C to 85C LM311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 70C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to 150C Case temperature for 60 seconds: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: J, JG, or U package . . . . . . . . . . . . . 300C Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: D, DB, P, or PW package . . . . . . . . 260C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values, unless otherwise noted, are with respect to the midpoint between VCC+ and VCC- . 2. Differential voltages are at IN+ with respect to IN -. 3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 V, whichever is less. 4. The output may be shorted to ground or either power supply. DISSIPATION RATING TABLE PACKAGE D DB or PW FK J JG P U TA 25C POWER RATING 500 mW 500 mW 500 mW 500 mW 500 mW 500 mW 500 mW DERATING FACTOR 5.8 mW/C 4.2 mW/C 11.0 mW/C 11.0 mW/C 8.4 mW/C 8.0 mW/C 5.4 mW/C DERATE ABOVE TA 64C 31C 105C 105C 90C 88C 57C TA = 70C POWER RATING 464 mW 336 mW 500 mW 500 mW 500 mW 500 mW 432 mW TA = 85C POWER RATING 377 mW - 500 mW 500 mW 500 mW 500 mW 351 mW TA = 125C POWER RATING - - 275 mW 275 mW 210 mW - 135 mW
recommended operating conditions
MIN Supply voltage, VCC + - VCC - Input voltage ( | VCC | 15 V) LM111 Operating free-air temperature range, TA LM211 LM311 3.5 VCC- + 0.5 - 55 - 40 0 MAX 30 VCC+ -1.5 125 85 70 UNIT V V C
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
electrical characteristics at specified free-air temperature, VCC = 15 V (unless otherwise noted)
PARAMETER VIO IIO IIB IIL(S) VICR Input offset voltage Input offset current Input bias current Low-level strobe current (see Note 6) Common-mode input voltage range Large-signal differential voltage amplification High-level ( ll t ) Hi h l l (collector) out ut output current TEST CONDITIONS See Note 5 See Note 5 VO = 1 V to 14 V V(strobe) = 0.3 V, VID - 10 mV TA 25C Full range 25C Full range 25C Full range 25C 13 to - 14.5 40 -3 13.8 to - 14.7 200 0.2 10 0.5 0.2 0.75 1.5 0.75 0.23 0.4 0.23 5.1 - 4.1 6 -5 5.1 - 4.1 0.4 7.5 -5 mA mA 1.5 V 50 13 to - 14.5 40 75 4 MIN LM111, LM211 TYP MAX 0.7 3 4 10 20 100 150 -3 13.8 to - 14.7 200 100 6 MIN LM311 TYP 2 MAX 7.5 10 50 70 250 300 UNIT mV nA nA mA
Full range
V
AVD
VO = 5 V to 35 V, I(strobe) = -3 mA, VID = 5 mV, VID = 5 mV,
RL = 1 k
25C 25C
V/mV nA A nA
IOH
VOH = 35 V VOH = 35 V VID = - 5 mV VID = - 10 mV VID = - 6 mV VID = - 10 mV No load No load
Full range 25C 25C 25C Full range Full range 25C 25C
VOL
Low-level (collector-to-emitter) out ut output voltage
IOL = 50 mA VCC+ = 4.5 V, VCC = 0 CC- 0, IOL = 8 mA VID = - 10 mV, VID = 10 mV,
ICC + ICC -
Supply current from VCC +, output low Supply current from VCC -, output high
Unless otherwise noted, all characteristics are measured with BALANCE and BAL/STRB open and the emitter output grounded. Full range for LM111 is - 55C to 125C, for LM211 is - 40C to 85C, and for LM311 is 0C to 70C. All typical values are at TA = 25C. NOTES: 5. The offset voltages and offset currents given are the maximum values required to drive the collector output up to 14 V or down to 1 V with a pullup resistor of 7.5 k to VCC +. These parameters actually define an error band and take into account the worst-case effects of voltage gain and input impedance. 6. The strobe should not be shorted to ground; it should be current driven at - 3 mA to - 5 mA (see Figures 13 and 27).
switching characteristics, VCC = 15 V, TA = 25C
PARAMETER Response time, low-to-high-level output Response time, high-to-low-level output TEST CONDITIONS RC = 500 to 5 V V, CL = 5 pF pF, See Note 7 LM111, LM211, LM311 MIN TYP 115 165 MAX UNIT ns ns
NOTE 7: The response time specified is for a 100-mV input step with 5-mV overdrive and is the interval between the input step function and the instant when the output crosses 1.4 V.
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5
LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
electrical characteristics at VCC = 15 V (unless otherwise noted)
PARAMETER VIO IIO IIB IIL(S) VICR AVD IOH VOL Input offset voltage Input offset current Input bias current Low-level strobe current (see Note 6) Common-mode input voltage range Large-signal differential voltage amplification High-level (collector) output current Low-level (collector-to-emitter) output voltage VO = 5 V to 35 V, Istrobe = - 3 mA, IOL = 50 mA, RL = 1 k VID = 5 mV, VID = - 10 mV VOH = 35 V See Note 5 See Note 5 VO = 1 V to 14 V V(strobe) = 0.3 V, VID - 10 mV 13 to - 14.5 40 TEST CONDITIONS LM311Y MIN TYP 2 6 100 -3 13.8 to - 14.7 200 0.2 0.75 50 1.5 MAX 7.5 50 250 UNIT mV nA nA mA V V/mV nA V
ICC + Supply current from VCC +, output low VID = - 10 mV, No load 5.1 7.5 mA ICC - Supply current from VCC -, output low VID = 10 mV, No load - 4.1 -5 mA Unless otherwise noted, all characteristics are measured with BALANCE and BAL/STRB open and the emitter output grounded. NOTES: 5. The offset voltages and offset currents given are the maximum values required to drive the collector output up to 14 V or down to 1 V with a pullup resistor of 7.5 k to VCC +. These parameters actually define an error band and take into account the worst-case effects of voltage gain and input impedance. 6. The strobe should not be shorted to ground; it should be current driven at - 3 mA to - 5 mA (see Figures 13 and 27).
switching characteristics, VCC = 15 V, TA = 25C
PARAMETER Response time, low-to-high-level output Response time, high-to-low-level output TEST CONDITIONS RC = 500 to 5 V V, CL = 5 pF pF, See Note 7 LM311Y MIN TYP 115 165 MAX UNIT ns ns
NOTE 7: The response time specified is for a 100-mV input step with 5-mV overdrive and is the interval between the input step function and the instant when the output crosses 1.4 V.
6
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
TYPICAL CHARACTERISTICS
INPUT OFFSET CURRENT vs FREE-AIR TEMPERATURE
20 18 I IO - Input Offset Current - nA 16 I IB - Input Bias Current - nA 14 12 10 8 6 LM311 4 2 0 - 60 - 40 - 20 LM111 LM211 Condition 1 LM111 LM211 LM311 VCC = 15 V VO = 1 V to 14 V See Note A 500 450 400 350 300 250 200 150 LM311 100 50 40 60 80 100 120 140 LM111 LM211 0 20 40 60 80 100 120 140 Condition 1 LM111 LM211 Condition 2 LM311
INPUT BIAS CURRENT vs FREE-AIR TEMPERATURE
VCC = 15 V VO = 1 V to 14 V See Note A
Condition 2
0
20
0 - 60 - 40 - 20
TA - Free-Air Temperature - C
TA - Free-Air Temperature - C
Figure 1
Figure 2
NOTE A: Condition 1 is with BALANCE and BAL/STRB open. Condition 2 is with BALANCE and BAL/STRB connected to VCC +. VI = 50 V (LM111, LM211) 40 V (LM311) 1 k Output VID
VCC+ = 30 V
VOLTAGE TRANSFER CHARACTERISTICS
60 VCC+ = 30 V VCC - = 0 TA = 25C LM111 LM211
50 VO - Output Voltage - V
LM311 40 Emitter Output RL = 600 Collector Output RL = 1 k
VCC- COLLECTOR OUTPUT TRANSFER CHARACTERISTIC TEST CIRCUIT FOR FIGURE 3 VCC+ = 30 V
30
20 VID 10 Output 600 0 -1 VCC- - 0.5 0 0.5 1 EMITTER OUTPUT TRANSFER CHARACTERISTIC TEST CIRCUIT FOR FIGURE 3 VID - Differential Input Voltage - mV
Figure 3
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
TYPICAL CHARACTERISTICS
OUTPUT RESPONSE FOR VARIOUS INPUT OVERDRIVES OUTPUT RESPONSE FOR VARIOUS INPUT OVERDRIVES
Differential Input Voltage
Differential Input Voltage
100 mV VCC = 15 V RC = 500 to 5 V TA = 25C 5 4 3 2 1 0 0 50 100 150 200 250 300 350 5 mV 20 mV
100 mV
VCC = 15 V RC = 500 to 5 V TA = 25C 5 4 20 mV 3 2 5 mV 1 0 0 50 100 150 200 250 300 350 2 mV
VO - Output Voltage - V
2 mV
t - Time - ns
VO - Output Voltage - V
t - Time - ns
Figure 4
VCC + = 15 V 5V 500 VID VO
Figure 5
VCC - = -15 V TEST CIRCUIT FOR FIGURES 4 AND 5
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
TYPICAL CHARACTERISTICS
OUTPUT RESPONSE FOR VARIOUS INPUT OVERDRIVES
Differential Input Voltage Differential Input Voltage
OUTPUT RESPONSE FOR VARIOUS INPUT OVERDRIVES
100 mV VCC = 15 V RE = 2 k to -15 V TA = 25C 20 mV 5 mV 5 0 2 mV
100 mV VCC = 15 V RE = 2 k to -15 V TA = 25C 5 mV
15 VO - Output Voltage - V 10
15 VO - Output Voltage - V 10 5 2 mV 0 -5 20 mV - 10 - 15 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
-5 - 10 - 15 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
t - Time - ns
t - Time - ns
Figure 6
VCC + = 15 V
Figure 7
VID
VO 2 k
VCC - = -15 V TEST CIRCUIT FOR FIGURES 6 AND 7
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
TYPICAL CHARACTERISTICS
OUTPUT CURRENT AND DISSIPATION vs OUTPUT VOLTAGE
160 140 120 100 80 60 40 IO (left scale) 20 0 0 5 10 VO - Output Voltage - V 100 0 15 VCC = 15 V t 10 s VID = -10 mV TA = 25C PO (right scale) 500 400 300 200 800 I CC+ - Positive Supply Current - mA 700 600 PO - Output Dissipation - mW 6 TA = 25C No Load 5 VID = -10 mV
POSITIVE SUPPLY CURRENT vs POSITIVE SUPPLY VOLTAGE
I O - Output Current - mA
4
3
VID = 10 mV
2
1
0 0 5 10 15 VCC+ - Positive Supply Voltage - V
Figure 8
NEGATIVE SUPPLY CURRENT vs NEGATIVE SUPPLY VOLTAGE
-6 I CC- - Negative Supply Current - mA VID = 10 mV or -10 mV TA = 25C No Load
Figure 9
-5
-4
-3
-2
-1
0 0 -5 - 10 - 15 VCC - - Negative Supply Voltage - V
Figure 10
10
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
APPLICATION INFORMATION
Figure 11 through Figure 29 show various applications for the LM111, LM211, and LM311 comparators.
VCC+ 20 k 1 k 3 k 3 k 10 k 1200 pF Square Wave Output (fanout to two Series 54 gates or equivalent) VCC+
BAL/ BALANCE STRB
20 k
39 k
Figure 11. 100-kHz Free-Running Multivibrator
Figure 12. Offset Balancing
VCC+
20 k BAL/STRB Input TTL Strobe Output
2N2222 1 k VCC-
Figure 13. Strobing
5V
Figure 14. Zero-Crossing Detector
82 k 240 k Input 47 k 82 k
1 k Output to TTL
Resistor values shown are for a 0-to-30-V logic swing and a 15-V threshold. May be added to control speed and reduce susceptibility to noise spikes.
Figure 15. TTL Interface With High-Level Logic
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
APPLICATION INFORMATION
VCC+ 100 k 5V 2 k 100 kHz 10 pF
4.5 k
2 k Output to TTL 100 k 0.1 F
Output
1 k
50 k
Magnetic Transducer
Figure 16. Detector for Magnetic Transducer
VCC+ Output 22 k Analog Input
Figure 17. 100-kHz Crystal Oscillator
From D/A Network VCC+
BALANCE Input TIP30 Sample 0.1 F 2N2222 1 k
BAL/STRB
TTL Strobe
Typical input current is 50 pA with inputs strobed off.
Figure 18. Comparator and Solenoid Driver
VCC+ 3.9 k 10 k Output
Figure 19. Strobing Both Input and Output Stages Simultaneously
VCC + = 5 V 3 k 3 k
500
2N3708
BALANCE Input + 1 k 2N2222 1.5 F
BAL/ STRB Output to MOS
10 k
VCC - = -10 V
Figure 20. Low-Voltage Adjustable Reference Supply
Figure 21. Zero-Crossing Detector Driving MOS Logic
12
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
APPLICATION INFORMATION
3.9 k 30 k VCC+ = 5 V
1 k
1 k
2N3708
1N914 Output + 2.7 k 1N914 1.5 F 2N2222 2N2222 Input From TTL
2N2222
510
2.2 k
Adjust to set clamp level
Figure 22. Precision Squarer
5V VCC+ = 5 V
TIL102
5 k
1 k TTL Output
100 From TTL Gate 50 k 1 k 0.01 F
1 k
Figure 23. Digital Transmission Isolator
VCC + = 15 V
2 k Input TL081 - Output + + 1 M VCC - = -15 V 1.5 F
10 k
Figure 24. Positive-Peak Detector
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
APPLICATION INFORMATION
VCC + = 15 V
1 M 10 k 2 k Input + 15 F
TL081 + Output -
VCC - = -15 V
Figure 25. Negative-Peak Detector
VCC + = 5 V
3.9 k 1N2175
2N3708
1 k Output to TTL
2N2222
R1 30 k
R1 sets the comparison level. At comparison, the photodiode has less than 5 mV across it decreasing dark current by an order of magnitude.
Figure 26. Precision Photodiode Comparator
VCC +
Inputs
BAL/STRB TTL Strobe 2N3708 1 k VCC -
Transient voltage and inductive kickback protection
Figure 27. Relay Driver With Strobe
14
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LM111, LM211, LM311, LM311Y DIFFERENTIAL COMPARATORS WITH STROBES
SLCS007A - SEPTEMBER 1973 - REVISED FEBRUARY 1992
APPLICATION INFORMATION
VCC + BAL/STRB 1 300 620 TIP30
100 k
Output
100 k
BAL/STRB 2
10 k Input 0.1 F 47 300 620
TIP29
VCC -
Figure 28. Switching Power Amplifier
39 k
620 TIP30 BAL/STRB 1 620
VCC+
300 k
15 k Reference 0.22 F VCC- V+ 510 15 k Input 510 BAL/STRB 2 VCC- 300 k 620 TIP29 620 620
TIP29 Outputs
39 k
TIP30 620
Figure 29. Switching Power Amplifiers
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