INA818

ACTIVO

Amplificador de instrumentación de precisión de baja potencia (350 µA) con protección contra sobrete

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document-pdfAcrobat INA818 35-μV Offset, 8-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier datasheet (Rev. A) (Inglés) PDF | HTML

INA818

ACTIVO

Hoja de datos

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Detalles del producto

Number of channels

1

Vs (max) (V)

36

Vs (min) (V)

4.5

Input offset (±) (max) (µV)

35

Voltage gain (min) (V/V)

1

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

8

Features

Overvoltage protection, Super-beta

CMRR (min) (dB)

110

Input offset drift (±) (max) (µV/°C)

0.4

Input bias current (±) (max) (nA)

0.5

Iq (typ) (mA)

0.35

Bandwidth at min gain (typ) (MHz)

2

Gain error (±) (max) (%)

0.15

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.0015

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

0.15

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

-0.15

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

2

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

-2

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.19

Number of channels

1

Vs (max) (V)

36

Vs (min) (V)

4.5

Input offset (±) (max) (µV)

35

Voltage gain (min) (V/V)

1

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

8

Features

Overvoltage protection, Super-beta

CMRR (min) (dB)

110

Input offset drift (±) (max) (µV/°C)

0.4

Input bias current (±) (max) (nA)

0.5

Iq (typ) (mA)

0.35

Bandwidth at min gain (typ) (MHz)

2

Gain error (±) (max) (%)

0.15

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.0015

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

0.15

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

-0.15

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

2

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

-2

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.19

SOIC (D)

8

29.4 mm² (4.9 mm × 6 mm)

Low offset voltage: 10 µV (typ), 35 µV (max)
Gain drift: 5 ppm/°C (G = 1),
35 ppm/°C (G > 1) (max)
Noise: 8 nV/√Hz
Bandwidth: 2 MHz (G = 1), 270 kHz (G = 100)
Stable with 1-nF capacitive loads
Inputs protected up to ±60 V
Common-mode rejection: 110 dB, G = 10 (min)
Power-supply rejection: 100 dB, G = 1 (min)
Supply current: 385 µA (max)
Supply voltage range:
- Single supply: 4.5 V to 36 V
- Dual supply: ±2.25 V to ±18 V
Specified temperature: –40°C to +125°C
Package: 8-pin SOIC

Low offset voltage: 10 µV (typ), 35 µV (max)
Gain drift: 5 ppm/°C (G = 1),
35 ppm/°C (G > 1) (max)
Noise: 8 nV/√Hz
Bandwidth: 2 MHz (G = 1), 270 kHz (G = 100)
Stable with 1-nF capacitive loads
Inputs protected up to ±60 V
Common-mode rejection: 110 dB, G = 10 (min)
Power-supply rejection: 100 dB, G = 1 (min)
Supply current: 385 µA (max)
Supply voltage range:
- Single supply: 4.5 V to 36 V
- Dual supply: ±2.25 V to ±18 V
Specified temperature: –40°C to +125°C
Package: 8-pin SOIC

The INA818 is a high-precision instrumentation amplifier that offers low power consumption and operates over a very wide single-supply or dual-supply range. A single external resistor sets any gain from 1 to 10000. The device offers high precision as a result of super-beta input transistors, which provide exceptionally low input offset voltage, offset voltage drift, input bias current, input voltage, and current noise. Additional circuitry protects the inputs against overvoltage up to ±60 V.

The INA818 is optimized to provide a high common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device is designed for low-voltage operation from a 4.5-V single supply, as well as dual supplies up to ±18 V.

The INA818 is available in an 8-pin SOIC package and is specified over the –40°C to +125°C temperature range.

The INA818 is a high-precision instrumentation amplifier that offers low power consumption and operates over a very wide single-supply or dual-supply range. A single external resistor sets any gain from 1 to 10000. The device offers high precision as a result of super-beta input transistors, which provide exceptionally low input offset voltage, offset voltage drift, input bias current, input voltage, and current noise. Additional circuitry protects the inputs against overvoltage up to ±60 V.

The INA818 is optimized to provide a high common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device is designed for low-voltage operation from a 4.5-V single supply, as well as dual supplies up to ±18 V.

The INA818 is available in an 8-pin SOIC package and is specified over the –40°C to +125°C temperature range.

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Amplificador de instrumentación de precisión de baja potencia (350 µA) con protección contra sobrete Low-power, low-noise instrumentation amplifier with gain pins 2 and 3

Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	INA818 35-μV Offset, 8-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier datasheet (Rev. A)	PDF \| HTML	18/06/2019
	Application brief	How to Select Amplifiers for Pressure Transmitter Applications (Rev. B)	PDF \| HTML	14/02/2023
	Application brief	Simplify Voltage and Current Measurement in Battery Test Equipment (Rev. A)	PDF \| HTML	10/03/2022
	Nota sobre la aplicación	Amplifier Input Common-Mode and Output-Swing Limitations	PDF \| HTML	14/01/2022
	Nota sobre la aplicación	Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps	PDF \| HTML	27/07/2021
	Application brief	How to Select Precision Amplifiers for Semiconductor Testers (Rev. A)	PDF \| HTML	3/12/2020
	Application brief	Difference Between an Instrumentation Amplifier and a Current Sense Amplifier		3/04/2020
	Analog Design Journal	Precision signal conditioning for safety-enabled AIMs in factory automation		30/09/2019
	Artículo técnico	What is an instrumentation amplifier?	PDF \| HTML	9/08/2019
	Analog Design Journal	Precision signal-conditioning solutions for motor control with position feedback		14/06/2019
	Application brief	Comprehensive Error Calculation for Instrumentation Amplifiers		26/03/2019
	Analog Design Journal	Getting the most out of your instrumentation amplifier design		10/10/2005

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 (...)

Guía del usuario: PDF | HTML