TLH7920 – 7

6 9 No connection on LM1896

( ) Indicates pin number for LM2896

TLH7920 – 8

Components

Comments

1 R2 R5 R10 R13

for the other channel

2 R3 R12

Bootstrap resistor sets drive current for output stage and allows pins 3 and 12 to

4 C1 C14

frequency pole set by

1

5 C2 C13

Feedback capacitors Ensure unity gain at DC Also a low frequency pole at

1

6 C3 C12

Bootstrap capacitors used to increase drive to output stage A low frequency

pole is set by

1

7 C5 C10

Compensation capacitor These stabilize the amplifiers and adjust their

bandwidth See curve of bandwidth vs allowable gain

8 C7

Improves power supply rejection (See Typical Performance Curves) Increasing

C7 increases turn-on delay

Output coupling capacitor Isolates pins 5 and 10 from the load Low frequency

pole set by

1

Provides power supply filtering

5