INA819

ACTIVO

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

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, Small Size, 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, Small Size, 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) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) WSON (DRG) 8 9 mm² (3 mm × 3 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: 110 dB, G = 1 (min)
  • Supply current: 385 µA (max)
  • Supply range:
    • Single supply: 4.5 V to 36 V
    • Dual supply: ±2.25 V to ±18 V
  • Specified temperature range: –40°C to +125°C
  • Packages: 8-pin SOIC, VSSOP, WSON
  • 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: 110 dB, G = 1 (min)
  • Supply current: 385 µA (max)
  • Supply range:
    • Single supply: 4.5 V to 36 V
    • Dual supply: ±2.25 V to ±18 V
  • Specified temperature range: –40°C to +125°C
  • Packages: 8-pin SOIC, VSSOP, WSON

The INA819 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 10,000. 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 INA819 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 INA819 is available in 8-pin SOIC, VSSOP, and WSON packages, and is specified over the –40°C to +125°C temperature range.

The INA819 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 10,000. 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 INA819 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 INA819 is available in 8-pin SOIC, VSSOP, and WSON packages, and is specified over the –40°C to +125°C temperature range.

Descargar Ver vídeo con transcripción Video

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 12
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos INA819 35-μV Offset, 8-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier datasheet (Rev. D) PDF | HTML 7/04/2022
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 Difference Between an Instrumentation Amplifier and a Current Sense Amplifier 3/04/2020
Guía del usuario Universal Instrumentation Amplifier EVM: Alternate Pinout User's Guide 7/02/2020
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

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

INA826EVM — Módulo de evaluación INA826

The INA826EVM is intended to provide basic functional evaluation of the INA826.

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Placa de evaluación

INAEVM-ALT-SO8 — Módulo de evaluación para amplificadores de instrumentación con configuración de pines alternativa e

El INAEVM-ALT-SO8 es un módulo de evaluación (EVM) de amplificador de instrumentación con configuración de pines alternativa y se utiliza para simplificar la creación de prototipos de amplificadores de instrumentación de precisión en el encapsulado SO-8 (D) con la configuración de pines que se (...)

Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

INA819 PSpice Model (Rev. B)

SBOMAW2B.ZIP (28 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

INA819 TINA-TI Reference Design (Rev. A)

SBOMAW0A (411 KB) - Diseño de referencia TINA-TI
Productos y hardware compatibles
Modelo de simulación

INA819 TINA-TI Spice Model (Rev. A)

SBOMAW1A.ZIP (14 KB) - Modelo TINA-TI Spice
Productos y hardware compatibles
Herramienta de cálculo

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

La calculadora del ingeniero analógico está diseñada para acelerar muchos de los cálculos repetitivos que los ingenieros de diseño de circuitos analógicos utilizan de forma habitual. Esta herramienta para PC proporciona una interfaz gráfica con una lista de varios cálculos comunes que van desde el (...)

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
WSON (DRG) 8 Ultra Librarian

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Serie de videos

Ver todos los videos

Videos