LTC1052

CHOPPERSTABILIZED OPERATIONAL AMPLIFIER

SLOS089A − D3238, MAY 1988−REVISED JULY 1991

POST OFFICE BOX 655303

Copyright

1

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.

Voltage . . . 0.001

µV/°C Typ

100 nV/mo Typ

25

°C

Over Full Temperature Range . . . 120 dB

Over Full Temperature Range . . . 120 dB

Over Full Temperature Range . . . 120 dB

16 V (Input Voltage Range Extends to

Ground)

description

The LTC1052 is a low-noise chopper-stabilized operational amplifier manufactured using CMOS silicon-gate

technology. The device is well-suited for applications such as thermocouple amplifiers, strain-gauge amplifiers,

low-level signal processing, and medical instrumentation.

Chopper stabilization constantly corrects input offset voltage errors, including both errors in the initial input offset

voltage and errors in input offset voltage due to time, temperature, and common-mode input voltage. The

chopper circuitry is internal and completely transparent to the user. Only two external capacitors are required

to alternately sample and hold the offset correction voltage and the amplified input signal.

Low-frequency (1/f) noise is also improved by the chopping technique. Instead of noise increasing continuously

at a rate of 3 dB/octave, the internal chopping causes noise to decrease at low frequencies. Picoampere input

currents further enhance the performance of this device.

The C-suffix devices are characterized for operation from − 40

°C to 85°C. The M-suffix devices are

characterized for operation over the full military temperature range of − 55

°C to 125°C.

1

2

3

4

8

7

6

5

IN −

IN +

OUT

CLAMP

D OR P PACKAGE

(T0P VIEW)

PACKAGE

SMALL OUTLINE

(D)

PLASTIC DIP

(P)

TA

−40

°C

to

85

°C

LTC1052CD

LTC1052CP

AVAILABLE OPTIONS

VIO MAX

at 25

°C

−55

°C

to

125

°C

5

µV

5

µV

LTC1052MD

LTC1052MP

The D package is available taped and reeled. Add the suffix R,

(e.g., LTC1052CDR).