20

LT1213/LT1214

S

APPLICATI

TYPICAL

COMMON MODE VOLTAGE (V)

0.01

100

80

60

40

20

0

0.1

1

10

1213/14 TA03b

Input Bias Current vs

Common Mode Voltage

Instrumentation Amplifier with Guard/Shield Driver and Input Bias Current Cancellation

Ground Current Sense Amplifier

Difference Amplifier with Wide Input Common Mode Range

1M

1020

Ω

–

+

1/4

LT1214

A

22pF

INPUTS

–

+

OUTPUT

–

+

1/4

LT1214

D

5000pF

1k

113

Ω

1/4

LT1214

B

1M*

1M

–

+

1/4

LT1214

C

200

Ω

1020

Ω

10k**

1k

10k

113

Ω

GUARD

GUARD

1213/14 TA03a

BANDWIDTH = 2MHz

GAIN = 10 1 +

= 100

()

*

**

TRIM FOR INPUT BIAS CURRENT

TRIM FOR CMRR

0.1

µF

1k

3.3V

–

+

1/2

LT1213

LT1004-1.2

10k

+IN

750

Ω

0.1

µF

±10V COMMON MODE RANGE

BANDWIDTH = 3MHz

1k

10k

1.2V

10k

10k

–IN

1213/14 TA05

–

+

5V

1/2

LT1213

1213/14 TA04

100

Ω

1910

Ω

100pF

LOAD

0.05

Ω

OFFSET

≤ 5.5mA

BANDWIDTH = 500kHz

0.1

µF

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

12134fa LT/CP 1001 1.5K REV A • PRINTED IN USA

©LINEAR TECHNOLOGY CORPORATION 1993

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LT1211/LT1212

14MHz, 7V/

µs Single Supply Dual and Quad Precision Op Amps

Half the Supply Current of the LT1213

LT1215/LT1216

23MHz, 50V/

µs Single Supply Dual and Quad Precision Op Amps

Four Times the Slew Rate of the LT1213

LT1630/LT1631

30MHz, 10V/

µs Dual and Quad Rail-to-Rail

Rail-to-Rail LT1213

Input and Output Precision Op Amps