LT1102

9

1102fb

Gain = 20, 110, or 200 Instrumentation Amplifiers

Differential Output

Multiplexed Input Data Acquisition

Single Ended Output

Voltage Programmable Current Source is Simple and Precise

Dynamic Response of the Current Source

APPLICATIO S I FOR ATIO

LT1102 • AI03

OUTPUT

AO

A1

DECODER

EN

509 OR

EQUIVALENT

S1A

4 CHANNELS

OF

DIFFERENTIAL

INPUT

S4A

S1B

S4B

–

+

LT1102

DA

800kHz SIGNALS CAN BE MULTIPLEXED WITH LT1102 IN G = 10

DB

HORIZ. = 20

μs/DIV

A = 5V/DIV

B = 5mA/DIV

–

+

LT1102 • AI04

LT1006

–

+

LT1102

A = 100

0.05

μF

10k

LOAD

0

±10V

R • 100

R

10

Ω*

LT1102 • AI02

8

6

3

8

1

6

3

OUT

–

+

IN

GAIN = 200, AS SHOWN

GAIN = 20, SHORT PIN 1 TO PIN 2, PIN 7 TO PIN 8 ON BOTH DEVICES

GAIN = 110, SHORT PIN 1 TO PIN 2, PIN 7 TO PIN 8 ON ONE DEVICE,

NOT ON THE OTHER

INPUT REFERRED NOISE IS REDUCED BY

√2 (G = 200 OR 20)

–

+

LT1102

–

+

LT1102

8

1

1

6

3

8

1

6

3

–

+

LT1102

–

+

IN

–

+

OUT

–

+

LT1102