Datasheet > LT1996ACDD#TR

LT1996ACDD#TR

更新时间： 2024-11-29 20:57:31

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凌特 - Linear		/
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LT1996ACDD#TR 数据手册

LT1996

Precision, 100µA

Gain Selectable Amplifier

FEATURES

DESCRIPTIO

The LT^®1996 combines a precision operational amplifier

with eight precision resistors to form a one-chip solution

for accurately amplifying voltages. Gains from –117 to

118withagainaccuracyof0.05%canbeachievedwithout

any external components. The device is particularly well

suitedforuseasadifferenceamplifier, wheretheexcellent

resistor matching results in a common mode rejection

ratio of greater than 80dB.

■

Pin Configurable as a Difference Amplifier,

Inverting and Noninverting Amplifier

■

Difference Amplifier

Gain Range 9 to 117

CMRR >80dB

■

Noninverting Amplifier

Gain Range 0.008 to 118

■

Inverting Amplifier

Gain Range –0.08 to –117

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.

■

Gain Error: <0.05%

■

Gain Drift: < 3ppm/°C

■

Wide Supply Range: Single 2.7V to Split ±18V

■

Micropower Operation: 100µA Supply

■

Input Offset Voltage: 50µV (Max)

■

The internal resistors have excellent matching character-

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

teedmatchingtemperaturecoefficentoflessthan3ppm/°C.

The resistors are also extremely stable over voltage,

exhibiting a nonlinearity of less than 10ppm.

Gain Bandwidth Product: 560kHz

■

Rail-to-Rail Output

■

Space Saving 10-Lead MSOP and DFN Packages

APPLICATIO S

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.

■

Handheld Instrumentation

■

Medical Instrumentation

■

Strain Gauge Amplifiers

■

Differential to Single-Ended Conversion

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

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

TYPICAL APPLICATIO

Rail-to-Rail Gain = 9 Difference Amplifier

Distribution of Resistor Matching

= V

+ 9 • ∆V

OUT

REF IN

15V

LT1996A

G = 81

SWING 40mV TO

EITHER RAIL

450k/81

450k/27

450k

4pF

450k/9

–

M(IN)

–

∆V

450k/9

P(IN)

LT1996

450k

450k/27

INPUT RANGE

±60V

450k/81

= 100kΩ

4pF

–0.04

–0.02

0.02

0.04

REF

RESISTOR MATCHING (%)

1996 TA01

–15V

1996 TA01b

1996f

12 3 4 5 6 7...24

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