INA823

ACTIVO

Amplificador de instrumentación con precisión (100 µV), baja potencia (250 µA) y alimentación amplia

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Hoja de datos

document-pdfAcrobat INA823 Precision, Low-Power, Wide-Supply (2.7-V to 36-V) Instrumentation Amplifier datasheet (Rev. B) (Inglés) PDF | HTML

INA823

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)

100

Voltage gain (min) (V/V)

1

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

21

Features

Cost Optimized, Low power, Overvoltage protection

CMRR (min) (dB)

120

Input offset drift (±) (max) (µV/°C)

1.2

Input bias current (±) (max) (nA)

8

Iq (typ) (mA)

0.18

Bandwidth at min gain (typ) (MHz)

1.9

Gain error (±) (max) (%)

0.2

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.001

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)

-0.15

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

-1

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.4

Number of channels

1

Vs (max) (V)

36

Vs (min) (V)

2.7

Input offset (±) (max) (µV)

100

Voltage gain (min) (V/V)

1

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

21

Features

Cost Optimized, Low power, Overvoltage protection

CMRR (min) (dB)

120

Input offset drift (±) (max) (µV/°C)

1.2

Input bias current (±) (max) (nA)

8

Iq (typ) (mA)

0.18

Bandwidth at min gain (typ) (MHz)

1.9

Gain error (±) (max) (%)

0.2

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.001

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)

-0.15

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

-1

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.4

VSSOP (DGK)

8

14.7 mm² (3 mm × 4.9 mm)

SOIC (D)

8

29.4 mm² (4.9 mm × 6 mm)

Input overvoltage protection up to ±60 V
Input voltage extends 150 mV below negative supply
Low power supply current: 180 µA (typ)
Precision performance:
- Low offset voltage: 20 µV (typ), 100 µV (max)
- Low input bias current: 8nA (max)
- Common-mode rejection:
  - 84 dB, G = 1 (min)
  - 104 dB, G = 10 (min)
  - 120 dB, G ≥ 100 (min)
- Power supply rejection: 100 dB, G = 1 (min)
Input voltage noise: 21 nV/√Hz
Bandwidth: 1.9 MHz (G = 1), 60 kHz (G = 100)
Stable with 1-nF capacitive loads
Supply range:
- Single-supply: 2.7 V to 36 V
- Dual-supply: ±1.35 V to ±18 V
Specified temperature range: –40°C to +125°C
Packages: 8-pin SOIC and 8-pin VSSOP

Input overvoltage protection up to ±60 V
Input voltage extends 150 mV below negative supply
Low power supply current: 180 µA (typ)
Precision performance:
- Low offset voltage: 20 µV (typ), 100 µV (max)
- Low input bias current: 8nA (max)
- Common-mode rejection:
  - 84 dB, G = 1 (min)
  - 104 dB, G = 10 (min)
  - 120 dB, G ≥ 100 (min)
- Power supply rejection: 100 dB, G = 1 (min)
Input voltage noise: 21 nV/√Hz
Bandwidth: 1.9 MHz (G = 1), 60 kHz (G = 100)
Stable with 1-nF capacitive loads
Supply range:
- Single-supply: 2.7 V to 36 V
- Dual-supply: ±1.35 V to ±18 V
Specified temperature range: –40°C to +125°C
Packages: 8-pin SOIC and 8-pin VSSOP

The INA823 is an integrated instrumentation amplifier that offers low power consumption and operates over a wide, single-supply or dual-supply range. A single external resistor sets any gain from 1 to 10,000. The device provides low input offset voltage, low offset voltage drift, low input bias current, and low current noise while remaining cost-effective. Additional circuitry protects the inputs against overvoltage up to ±60 V.

The INA823 is optimized to provide a high common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 84 dB across the full input common-mode range. The INA823 has a wide common-mode voltage range as low as 150-mV below negative supply. The device is designed for low-voltage operation from a 2.7-V single supply, and dual supplies up to ±18 V. The low power and single supply operation enable hand-held, battery-operated systems.

The INA823 is an integrated instrumentation amplifier that offers low power consumption and operates over a wide, single-supply or dual-supply range. A single external resistor sets any gain from 1 to 10,000. The device provides low input offset voltage, low offset voltage drift, low input bias current, and low current noise while remaining cost-effective. Additional circuitry protects the inputs against overvoltage up to ±60 V.

The INA823 is optimized to provide a high common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 84 dB across the full input common-mode range. The INA823 has a wide common-mode voltage range as low as 150-mV below negative supply. The device is designed for low-voltage operation from a 2.7-V single supply, and dual supplies up to ±18 V. The low power and single supply operation enable hand-held, battery-operated systems.

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	INA823 Precision, Low-Power, Wide-Supply (2.7-V to 36-V) Instrumentation Amplifier datasheet (Rev. B)	PDF \| HTML	23/11/2021
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	Nota sobre la aplicación	Cost-Optimized, High-Performance Front-End Design for Analog Input Modules	PDF \| HTML	22/06/2022
	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

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