LT1996

1

1996f

RESISTOR MATCHING (%)

0.04

1996 TA01b

– 0.02

0

0.02

40

35

30

25

20

15

10

5

0

– 0.04

LT1996A

G = 81

TYPICAL APPLICATIO

FEATURES

Inverting and Noninverting Amplifier

Gain Range 9 to 117

CMRR >80dB

Gain Range 0.008 to 118

Gain Range –0.08 to –117

Precision, 100µA

Gain Selectable Amplifier

The LT

with eight precision resistors to form a one-chip solution

for accurately amplifying voltages. Gains from –117 to

118 with a gain accuracy of 0.05% can be achieved without

any external components. The device is particularly well

suited for use as a difference amplifier, where the excellent

resistor matching results in a common mode rejection

ratio of greater than 80dB.

The amplifier features a 50µV maximum input offset

voltage and a gain bandwidth product of 560kHz. The

device operates from any supply voltage from 2.7V to 36V

and draws only 100µA supply current on a 5V supply. The

output swings to within 40mV of either supply rail.

The internal resistors have excellent matching character-

istics; variation is 0.05% over temperature with a guaran-

teed matching temperature coefficent of less than 3ppm/°C.

The resistors are also extremely stable over voltage,

exhibiting a nonlinearity of less than 10ppm.

The LT1996 is fully specified at 5V and ±15V supplies and

from –40°C to 85°C. The device is available in space

saving 10-lead MSOP and DFN packages. For an amplifier

with selectable gains from –13 to 14, see the LT1991 data

sheet.

DESCRIPTIO

APPLICATIO S

Rail-to-Rail Gain = 9 Difference Amplifier

Distribution of Resistor Matching

–

+

15V

–15V

–

+

SWING 40mV TO

EITHER RAIL

INPUT RANGE

±60V

LT1996

1996 TA01

450k/81

450k/81

450k/27

450k/27

450k/9

450k

450k

450k/9

4pF

4pF

, LTC and LT are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners. Patents Pending.