INA126

ACTIVO

Amplificador de instrumentación de precisión con micropotencia de 36 V (175 µA) y offset de 250 µV

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Hoja de datos

document-pdfAcrobat INAx126 MicroPower Instrumentation Amplifiers datasheet (Rev. D) (Inglés) PDF | HTML

INA126

ACTIVO

Hoja de datos

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Detalles del producto

Number of channels

1

Vs (max) (V)

36

Vs (min) (V)

2.7

Input offset (±) (max) (µV)

250

Voltage gain (min) (V/V)

5

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

35

Features

Low power

CMRR (min) (dB)

83

Input offset drift (±) (max) (µV/°C)

3

Input bias current (±) (max) (nA)

25

Iq (typ) (mA)

0.175

Bandwidth at min gain (typ) (MHz)

0.2

Gain error (±) (max) (%)

0.5

Operating temperature range (°C)

-55 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.012

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

0.8

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

-0.75

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

3.5

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

-3.5

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.7

Number of channels

1

Vs (max) (V)

36

Vs (min) (V)

2.7

Input offset (±) (max) (µV)

250

Voltage gain (min) (V/V)

5

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

35

Features

Low power

CMRR (min) (dB)

83

Input offset drift (±) (max) (µV/°C)

3

Input bias current (±) (max) (nA)

25

Iq (typ) (mA)

0.175

Bandwidth at min gain (typ) (MHz)

0.2

Gain error (±) (max) (%)

0.5

Operating temperature range (°C)

-55 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.012

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

0.8

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

-0.75

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

3.5

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

-3.5

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.7

SOIC (D)

8

29.4 mm² (4.9 mm × 6 mm)

VSSOP (DGK)

8

14.7 mm² (3 mm × 4.9 mm)

Low quiescent current: 175µA/channel
Wide supply range: ±1.35V to ±18V
Low offset voltage: 250µV maximum
Low offset drift: 3µV/°C maximum
Low noise: 35 nV/√Hz
Low input bias current: 25nA maximum
Temperature range: –40°C to +85°C
Multiple package options:
- Single channel:
  - INA126P/PA 8-pin PDIP (P)
  - INA126U/UA 8-pin SOIC (D)
  - INA126E/EA 8-pin VSSOP (DGK)
- Dual channels:
  - INA2126P/PA 16-pin PDIP (N)
  - INA2126U/UA 16-pin SOIC (D)
  - INA2126E/EA 16-pin SSOP (DBQ)

Low quiescent current: 175µA/channel
Wide supply range: ±1.35V to ±18V
Low offset voltage: 250µV maximum
Low offset drift: 3µV/°C maximum
Low noise: 35 nV/√Hz
Low input bias current: 25nA maximum
Temperature range: –40°C to +85°C
Multiple package options:
- Single channel:
  - INA126P/PA 8-pin PDIP (P)
  - INA126U/UA 8-pin SOIC (D)
  - INA126E/EA 8-pin VSSOP (DGK)
- Dual channels:
  - INA2126P/PA 16-pin PDIP (N)
  - INA2126U/UA 16-pin SOIC (D)
  - INA2126E/EA 16-pin SSOP (DBQ)

The INA126 and INA2126 (INAx126) are precision instrumentation amplifiers for accurate, low-noise, differential-signal acquisition. The two-op-amp design provides excellent performance with low quiescent current (175µA/channel). These features combined with a wide operating voltage range of ±1.35V to ±18V make the INAx126 a great choice for portable instrumentation and data acquisition systems.

Gain can be set from 5V/V to 10000V/V with a single external resistor. Precision input circuitry provides low offset voltage (250µV, maximum), low offset voltage drift (3µV/°C, maximum), and excellent common-mode rejection.

All versions are specified for the –40°C to +85°C industrial temperature range.

The INA126 and INA2126 (INAx126) are precision instrumentation amplifiers for accurate, low-noise, differential-signal acquisition. The two-op-amp design provides excellent performance with low quiescent current (175µA/channel). These features combined with a wide operating voltage range of ±1.35V to ±18V make the INAx126 a great choice for portable instrumentation and data acquisition systems.

Gain can be set from 5V/V to 10000V/V with a single external resistor. Precision input circuitry provides low offset voltage (250µV, maximum), low offset voltage drift (3µV/°C, maximum), and excellent common-mode rejection.

All versions are specified for the –40°C to +85°C industrial temperature range.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	INAx126 MicroPower Instrumentation Amplifiers datasheet (Rev. D)	PDF \| HTML	11/12/2025
	Nota sobre la aplicación	Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps	PDF \| HTML	27/07/2021
	Application brief	Comprehensive Error Calculation for Instrumentation Amplifiers		26/03/2019
	Libro electrónico	The Signal e-book: A compendium of blog posts on op amp design topics	PDF \| HTML	28/03/2017

Diseño y desarrollo

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Placa de evaluación

INAEVM — Módulo de evaluación de amplificador de instrumentación universal

The universal INAEVM (Instrumentation Amplifier Evaluation Module) is available in two package options that simplify prototyping precision instrumentation amplifiers in either the SO-8 (D) package or the MSOP-8(DGK) package with the pinout shown. See the chart in the user guide (...)

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