INA351

ACTIVO

Amplificador de instrumentación diminuto (1.5 mm × 2 mm) de bajo consumo (110 µA) con búfer de refer

Detalles del producto

Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 1300 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 36 Features Cost Optimized, Low power, Shutdown, Small Size CMRR (min) (dB) 86 Iq (typ) (mA) 0.11 Bandwidth at min gain (typ) (MHz) 0.1 Gain error (±) (max) (%) 0.1 Operating temperature range (°C) -40 to 125 Rating Catalog Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) 0.015 Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 3.2
Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 1300 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 36 Features Cost Optimized, Low power, Shutdown, Small Size CMRR (min) (dB) 86 Iq (typ) (mA) 0.11 Bandwidth at min gain (typ) (MHz) 0.1 Gain error (±) (max) (%) 0.1 Operating temperature range (°C) -40 to 125 Rating Catalog Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) 0.015 Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 3.2
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8 WSON (DSG) 8 4 mm² 2 x 2 X2QFN (RUG) 10 3 mm² 1.5 x 2
  • Designed for size, cost, and power conscious applications
  • Selectable gain options with integrated reference buffer
    • G = 10 or G = 20 (INA351ABS)
    • G = 30 or G = 50 (INA351CDS)
  • Space saving ultra-small package options
    • 10-pin X2QFN (RUG) – 3mm2
    • 8-pin WSON (DSG) – 4mm2
    • 8-pin SOT23-THN (DDF) – 4.64mm2
  • Optimized performance for 10-bit to 14-bit systems
    • CMRR: 95dB (typical) across all gains
    • Offset voltage: 0.2mV (typical) across all gains
    • Gain error (typical):
      • 0.015% for G = 10, G = 50
      • 0.020% for G = 20, G = 30
  • Bandwidth: 100kHz for G = 10 (typical)
  • Drives 500pF with less than 20% overshoot (typical)
  • Optimized quiescent current: 110µA (typical)
  • Shutdown option for power conscious applications
  • Supply range: 1.8V (±0.9V) to 5.5V (±2.75V)
  • Specified temperature range: –40°C to 125°C
  • Designed for size, cost, and power conscious applications
  • Selectable gain options with integrated reference buffer
    • G = 10 or G = 20 (INA351ABS)
    • G = 30 or G = 50 (INA351CDS)
  • Space saving ultra-small package options
    • 10-pin X2QFN (RUG) – 3mm2
    • 8-pin WSON (DSG) – 4mm2
    • 8-pin SOT23-THN (DDF) – 4.64mm2
  • Optimized performance for 10-bit to 14-bit systems
    • CMRR: 95dB (typical) across all gains
    • Offset voltage: 0.2mV (typical) across all gains
    • Gain error (typical):
      • 0.015% for G = 10, G = 50
      • 0.020% for G = 20, G = 30
  • Bandwidth: 100kHz for G = 10 (typical)
  • Drives 500pF with less than 20% overshoot (typical)
  • Optimized quiescent current: 110µA (typical)
  • Shutdown option for power conscious applications
  • Supply range: 1.8V (±0.9V) to 5.5V (±2.75V)
  • Specified temperature range: –40°C to 125°C

The INA351 is a selectable-gain instrumentation amplifier with integrated reference buffer that offers four gain options across the INA351ABS and INA351CDS variants available in small packages. The INA351ABS has gain options of 10 or 20 and the INA351CDS has gain options of 30 or 50. These gain options can be selected by toggling the gain select (GS) pin. The INA351 is an excellent choice for bridge-type sensing and for differential to single-ended conversion applications.

Built with precision matched integrated resistors, the INA351 saves on BOM costs, pick-and-place machine handling costs, and board space by removing the need for precise or closely-matched external resistors. The INA351 can interface directly to low-speed, 10-bit to 14-bit, analog-to-digital converters (ADCs) and is an excellent choice for replacing discrete implementation of instrumentation amplifiers built with commodity amplifiers and discrete resistors.

Designed with the three-amplifier architecture, the INA351 is optimized for delivering performance. The device achieves 86dB of minimum CMRR and an accurate 0.1% of maximum gain error, along with 1.3mV of maximum offset across all gain options, while consuming just 135µA of maximum quiescent current. The INA351 has an integrated shutdown option to turn off the amplifier when idle for additional power savings in battery-powered applications.

The INA351 is a selectable-gain instrumentation amplifier with integrated reference buffer that offers four gain options across the INA351ABS and INA351CDS variants available in small packages. The INA351ABS has gain options of 10 or 20 and the INA351CDS has gain options of 30 or 50. These gain options can be selected by toggling the gain select (GS) pin. The INA351 is an excellent choice for bridge-type sensing and for differential to single-ended conversion applications.

Built with precision matched integrated resistors, the INA351 saves on BOM costs, pick-and-place machine handling costs, and board space by removing the need for precise or closely-matched external resistors. The INA351 can interface directly to low-speed, 10-bit to 14-bit, analog-to-digital converters (ADCs) and is an excellent choice for replacing discrete implementation of instrumentation amplifiers built with commodity amplifiers and discrete resistors.

Designed with the three-amplifier architecture, the INA351 is optimized for delivering performance. The device achieves 86dB of minimum CMRR and an accurate 0.1% of maximum gain error, along with 1.3mV of maximum offset across all gain options, while consuming just 135µA of maximum quiescent current. The INA351 has an integrated shutdown option to turn off the amplifier when idle for additional power savings in battery-powered applications.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet INA351 Cost and Size Optimized, Low Power, 1.8V to 5.5V Selectable Gain Instrumentation Amplifier with Integrated Reference Buffer datasheet (Rev. D) PDF | HTML 19 nov 2024
Product overview Small-Size INA35x Versus Discrete Instrumentation Amps (Rev. A) PDF | HTML 31 ene 2023
Product overview Bridge Sensor Solution (Rev. A) PDF | HTML 27 ene 2023

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

INA-DDF-EVM — Módulo de evaluación para amplificadores de instrumentación en formato DDF

El INA-DDF-EVM es un módulo de evaluación (EVM) compatible con múltiples amplificadores de instrumentación (IA) en el encapsulado DDF. Está diseñado para evaluar el rendimiento de los dispositivos en configuraciones de suministro único y doble.
Guía del usuario: PDF | HTML
Placa de evaluación

SMALL-AMP-DIP-EVM — Módulo de evaluación para amplificadores operacionales en encapsulados de pequeño tamaño

El SMALL-AMP-DIP-EVM acelera la creación de prototipos de amplificadores operativos de encapsulados pequeños, ya que proporciona una forma rápida y fácil de interactuar con muchos encapsulados de tamaño pequeño estándar de la industria. SMALL-AMP-DIP-EVM admite ocho opciones de encapsulados (...)

Guía del usuario: PDF
Modelo de simulación

INA351_G10 PSpice Model

SBOMCD0.ZIP (41 KB) - PSpice Model
Modelo de simulación

INA351_G10 TINA-TI Reference Design

SBOMCD4.TSC (51 KB) - TINA-TI Reference Design
Modelo de simulación

INA351_G10 TINA-TI Spice Model

SBOMCD2.ZIP (5 KB) - TINA-TI Spice Model
Modelo de simulación

INA351_G20 PSpice Model

SBOMCD1.ZIP (48 KB) - PSpice Model
Modelo de simulación

INA351_G20 TINA-TI Reference Design

SBOMCD5.TSC (51 KB) - TINA-TI Reference Design
Modelo de simulación

INA351_G20 TINA-TI Spice Model

SBOMCD3.ZIP (5 KB) - TINA-TI Spice Model
Modelo de simulación

INA351_G30 PSpice Model

SBOMCC4.ZIP (59 KB) - PSpice Model
Modelo de simulación

INA351_G30 TINA-TI Reference Design

SBOMCC8.TSC (51 KB) - TINA-TI Reference Design
Modelo de simulación

INA351_G30 TINA-TI Spice Model

SBOMCC6.ZIP (5 KB) - TINA-TI Spice Model
Modelo de simulación

INA351_G50 PSpice Model

SBOMCC5.ZIP (47 KB) - PSpice Model
Modelo de simulación

INA351_G50 TINA-TI Reference Design

SBOMCC9.TSC (51 KB) - TINA-TI Reference Design
Modelo de simulación

INA351_G50 TINA-TI Spice Model

SBOMCC7.ZIP (5 KB) - TINA-TI Spice Model
Herramienta de cálculo

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

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

Productos y hardware compatibles

Productos y hardware compatibles

Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
Herramienta de simulación

TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Guía del usuario: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOT-23-THN (DDF) 8 Ultra Librarian
WSON (DSG) 8 Ultra Librarian
X2QFN (RUG) 10 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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. ​​​​​​​​​​​​​​

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