6

LT1001

Voltage Follower Overshoot

vs Capacitive Load

Small Signal Transient Response

1001 G22

1001 G19

Large Signal Transient Response

FREQUENCY (kHz)

1

28

24

20

16

12

8

4

0

10

100

1000

1001 G23

Maximum Undistorted

Output vs. Frequency

FREQUENCY (Hz)

1

100

10

1

0.1

0.01

0.001

10k

1001 G24

10

100

1k

100k

Closed Loop Output Impedance

1001 G21

Small Signal Transient Response

CAPACITIVE LOAD (PICOFARADS)

100

1001 G20

1000

10,000

100,000

100

80

60

40

20

0

Application Notes and Test Circuits

The LT1001 series units may be inserted directly into

OP-07, OP-05, 725, 108A or 101A sockets with or without

removal of external frequency compensation or nulling

components. The LT1001 can also be used in 741, LF156

or OP-15 applications provided that the nulling circuitry is

removed.

The LT1001 is specified over a wide range of power supply

voltages from

±3V to±18V. Operation with lower supplies

is possible down to

±1.2V (two Ni-Cad batteries). How-

ever, with

±1.2V supplies, the device is stable only in

closed loop gains of +2 or higher (or inverting gain of one

or higher).

Unless proper care is exercised, thermocouple effects

caused by temperature gradients across dissimilar metals

at the contacts to the input terminals, can exceed the

inherent drift of the amplifier. Air currents over device

leads should be minimized, package leads should be

short, and the two input leads should be as close together

as possible and maintained at the same temperature.

Test Circuit for Offset Voltage and its Drift with Temperature

–15V

LT1001

+15V

*50k

*

100

Ω

*

50k

2

3

7

6

1001 F01

* RESISTORS MUST HAVE LOW

THERMOELECTRIC POTENTIAL.

** THIS CIRCUIT IS ALSO USED AS THE BURN-IN

CONFIGURATION FOR THE LT1001, WITH SUPPLY

VOLTAGES INCREASED TO

±20V.

4