Inicio Amplificadores Amplificadores de instrumentación
Inicio
Amplificadores
Amplificadores de instrumentación

INA851

ACTIVO

Amplificador de instrumentación completamente diferencial de alta velocidad (22 MHz) y bajo ruido (3

Haga su pedido ahora
Hoja de datos

INA851

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 8 Input offset (±) (max) (µV) 35 Voltage gain (min) (V/V) 0.2 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 3.2 Features Fully Differential, Overvoltage protection, Small Size, Super-beta, Ultra-low noise CMRR (min) (dB) 120 Input offset drift (±) (max) (µV/°C) 0.4 Input bias current (±) (max) (nA) 20 Iq (typ) (mA) 6 Bandwidth at min gain (typ) (MHz) 22 Gain error (±) (max) (%) 0.15 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.0002 Output swing headroom (to negative supply) (typ) (V) 1.4 Output swing headroom (to positive supply) (typ) (V) -1.4 Input common mode headroom (to negative supply) (typ) (V) 2.5 Input common mode headroom (to positive supply) (typ) (V) -2.5 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.1
Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 8 Input offset (±) (max) (µV) 35 Voltage gain (min) (V/V) 0.2 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 3.2 Features Fully Differential, Overvoltage protection, Small Size, Super-beta, Ultra-low noise CMRR (min) (dB) 120 Input offset drift (±) (max) (µV/°C) 0.4 Input bias current (±) (max) (nA) 20 Iq (typ) (mA) 6 Bandwidth at min gain (typ) (MHz) 22 Gain error (±) (max) (%) 0.15 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.0002 Output swing headroom (to negative supply) (typ) (V) 1.4 Output swing headroom (to positive supply) (typ) (V) -1.4 Input common mode headroom (to negative supply) (typ) (V) 2.5 Input common mode headroom (to positive supply) (typ) (V) -2.5 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.1
VQFN (RGT) 16 9 mm² (3 mm × 3 mm)
  • Gain programmable from G = 0.2 to 10,000 by using external resistor
  • Fully differential outputs with integrated clamping
  • Low offset voltage: 10 µV (typ), 35 µV (max)
  • Low offset drift: 0.1 µV/°C (typ), 0.3 µV/°C (max)
  • Low input bias current: 5 nA (typ)
  • Input stage noise: 3.2 nV/√Hz, 0.8 pA/√Hz
  • Wide bandwidth: 22 MHz at G = 0.2, 15 MHz at G = 1
  • Common-mode rejection: 106 dB (min) at G = 10, 120 dB (min) at 100 ≤ G ≤ 1000
  • Power supply rejection: 110 dB (min) at G = 1
  • Supply current: 6 mA (typ)
  • Input overvoltage protection to ±40 V beyond supplies
  • Supply range:
    • Single supply: 8 V to 36 V
    • Dual supply: ±4 V to ±18 V
  • Specified temperature range: –40°C to +125°C
  • Tiny package: 16-pin VQFN
  • Gain programmable from G = 0.2 to 10,000 by using external resistor
  • Fully differential outputs with integrated clamping
  • Low offset voltage: 10 µV (typ), 35 µV (max)
  • Low offset drift: 0.1 µV/°C (typ), 0.3 µV/°C (max)
  • Low input bias current: 5 nA (typ)
  • Input stage noise: 3.2 nV/√Hz, 0.8 pA/√Hz
  • Wide bandwidth: 22 MHz at G = 0.2, 15 MHz at G = 1
  • Common-mode rejection: 106 dB (min) at G = 10, 120 dB (min) at 100 ≤ G ≤ 1000
  • Power supply rejection: 110 dB (min) at G = 1
  • Supply current: 6 mA (typ)
  • Input overvoltage protection to ±40 V beyond supplies
  • Supply range:
    • Single supply: 8 V to 36 V
    • Dual supply: ±4 V to ±18 V
  • Specified temperature range: –40°C to +125°C
  • Tiny package: 16-pin VQFN

The INA851 is the industry’s first high-precision instrumentation amplifier with fully differential outputs. This device is optimized to drive inputs of modern high performance analog-to-digital converters (ADCs) with fully differential inputs. The INA851 operates over a very-wide, single-supply or dual-supply range. The output stage gain can be set to either 0.2 or to 1 by shorting or floating two pins. A single external resistor sets any input stage gain from 1 to 10,000.

Compared to other amplifiers in the same class, the INA851 offers very-low input bias current and low input-referred current noise as a result of super-beta input transistors. A state-of-the-art manufacturing process provides exceptionally low voltage noise, input offset voltage, and offset voltage drift. Additional circuitry protects the device inputs against overvoltage up to ±40 V beyond the power-supply voltages.The device outputs feature built-in clamping circuitry to protect the ADC or downstream device against overdrive damage.

The device is designed for operation from either an 8-V minimum single or ±4-V dual supply, and a maximum of 36-V single or ±18 V dual supply.

The INA851 is the industry’s first high-precision instrumentation amplifier with fully differential outputs. This device is optimized to drive inputs of modern high performance analog-to-digital converters (ADCs) with fully differential inputs. The INA851 operates over a very-wide, single-supply or dual-supply range. The output stage gain can be set to either 0.2 or to 1 by shorting or floating two pins. A single external resistor sets any input stage gain from 1 to 10,000.

Compared to other amplifiers in the same class, the INA851 offers very-low input bias current and low input-referred current noise as a result of super-beta input transistors. A state-of-the-art manufacturing process provides exceptionally low voltage noise, input offset voltage, and offset voltage drift. Additional circuitry protects the device inputs against overvoltage up to ±40 V beyond the power-supply voltages.The device outputs feature built-in clamping circuitry to protect the ADC or downstream device against overdrive damage.

The device is designed for operation from either an 8-V minimum single or ±4-V dual supply, and a maximum of 36-V single or ±18 V dual supply.
filter Buscar otro/a Amplificadores de instrumentación
Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
INA849 ACTIVO Amplificador de instrumentación de ruido ultrabajo (1 nV/√Hz), alta velocidad (28 MHz, 35 V/μs) y pr Single-ended output, lower noise and wider bandwidth
THP210 ACTIVO Amplificador completamente diferencial de alta precisión (40 μV, 0.1 μV/C), de alta tensión (36 V), High-precision, high-voltage (40-µV, 0.35-µV/√Hz) fully differential amplifier

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 4
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos INA851 Precision, Low-Noise, Fully Differential Output Instrumentation Amplifier With Attenuating Gain and Output Clamping datasheet (Rev. A) PDF | HTML 26/10/2022
Application brief Optimizing Strain Gauge Accuracy With INA851 vs. Discrete Design PDF | HTML 14/11/2023
Product overview First High-Precision Instrumentation Amplifier With Fully- Differential Outputs PDF | HTML 6/10/2023
Product overview PLC Analog Input Front-End Architectures PDF | HTML 31/07/2022

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

INA851EVM — Módulo de evaluación de INA851 para amplificador de instrumentación totalmente diferencial de alta v

El módulo de evaluación (EVM) de INA851EVM proporciona acceso a las características y mide el rendimiento de INA851. INA851 es un amplificador de instrumentación de alta precisión con salidas diferenciales, que está optimizado para impulsar convertidores de analógico a digital (ADC) de alto (...)

Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

INA851 PSpice Model

SBOMC50.ZIP (101 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

INA851 TINA-TI Reference Design

SBOMC51 (49 KB) - Diseño de referencia TINA-TI
Productos y hardware compatibles
Modelo de simulación

INA851 TINA-TI Spice Model

SBOMC52.ZIP (16 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
Herramienta de cálculo

INA851-INPUT-OUTPUT-RANGE-DESIGN-CALC — INA851 input and output range design calculator

INA851 input and output range design calculator
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGT) 16 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Soporte y capacitación

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

Ver todos los temas del foro en inglés

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. ​​​​​​​​​​​​​​

Videos