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INA327
  • INA327

INA327

ACTIVE

Precision, Low Drift, CMOS Instrumentation Amplifier with Shutdown

Texas Instruments INA327 Product Info

1 April 2026 0

Parameters

Number of channels

1

Vs (max) (V)

5.5

Vs (min) (V)

2.7

Input offset (±) (max) (µV)

100

Voltage gain (min) (V/V)

0.1

Voltage gain (max) (V/V)

1000

Noise at 1 kHz (typ) (nV√Hz)

33

Features

Cost Optimized, Shutdown

CMRR (min) (dB)

100

Input offset drift (±) (max) (µV/°C)

0.4

Input bias current (±) (max) (nA)

2

Iq (typ) (mA)

2.4

Bandwidth at min gain (typ) (MHz)

0.001

Gain error (±) (max) (%)

0.2

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.01

Output swing headroom (to negative supply) (typ) (V)

0.005

Output swing headroom (to positive supply) (typ) (V)

-0.005

Input common mode headroom (to negative supply) (typ) (V)

-0.02

Input common mode headroom (to positive supply) (typ) (V)

0.1

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.8

Package

VSSOP (DGS)-10-14.7 mm² 3 x 4.9

Features

  • PRECISION
       LOW OFFSET: 100 µV (max)
       LOW OFFSET DRIFT: 0.4 µV/°C (max)
       EXCELLENT LONG-TERM STABILITY
       VERY-LOW 1/f NOISE
  • TRUE RAIL-TO-RAIL I/O
       INPUT COMMON-MODE RANGE:
          20mV Below Negative Rail to 100mV Above Positive Rail
       WIDE OUTPUT SWING: Within 10mV of Rails
       SUPPLY RANGE: Single +2.7V to +5.5V
  • SMALL SIZE
       microPACKAGE: MSOP-8, MSOP-10
  • LOW COST
  • APPLICATIONS
    • LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES
    • WIDE DYNAMIC RANGE SENSOR MEASUREMENTS
    • HIGH-RESOLUTION TEST SYSTEMS
    • WEIGH SCALES
    • MULTI-CHANNEL DATA ACQUISITION SYSTEMS
    • MEDICAL INSTRUMENTATION
    • GENERAL-PURPOSE

  • PRECISION
       LOW OFFSET: 100 µV (max)
       LOW OFFSET DRIFT: 0.4 µV/°C (max)
       EXCELLENT LONG-TERM STABILITY
       VERY-LOW 1/f NOISE
  • TRUE RAIL-TO-RAIL I/O
       INPUT COMMON-MODE RANGE:
          20mV Below Negative Rail to 100mV Above Positive Rail
       WIDE OUTPUT SWING: Within 10mV of Rails
       SUPPLY RANGE: Single +2.7V to +5.5V
  • SMALL SIZE
       microPACKAGE: MSOP-8, MSOP-10
  • LOW COST
  • APPLICATIONS
    • LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES
    • WIDE DYNAMIC RANGE SENSOR MEASUREMENTS
    • HIGH-RESOLUTION TEST SYSTEMS
    • WEIGH SCALES
    • MULTI-CHANNEL DATA ACQUISITION SYSTEMS
    • MEDICAL INSTRUMENTATION
    • GENERAL-PURPOSE

Description

The INA326 and INA327 (with shutdown) are high-performance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for applications ranging from general-purpose to high-accuracy.

Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product.

The INA326 (without shutdown) comes in the MSOP-8 package. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.

The INA326 and INA327 (with shutdown) are high-performance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for applications ranging from general-purpose to high-accuracy.

Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product.

The INA326 (without shutdown) comes in the MSOP-8 package. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.