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Amplificadores
Amplificadores operacionales (op amps)
Amplificadores operacionales de precisión (Vos <1 mV)

OPA2251

ACTIVO

Amplificadores operacionales dobles, de 15 V, de alimentación simple y microalimentación

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Hoja de datos

OPA2251

ACTIVO
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Detalles del producto

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.25 Offset drift (typ) (µV/°C) 0.5 Input bias current (max) (pA) 20000 GBW (typ) (MHz) 0.035 Features High Cload Drive Slew rate (typ) (V/µs) 0.01 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.027 Vn at 1 kHz (typ) (nV√Hz) 45 CMRR (typ) (dB) 124 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.05 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.25 Offset drift (typ) (µV/°C) 0.5 Input bias current (max) (pA) 20000 GBW (typ) (MHz) 0.035 Features High Cload Drive Slew rate (typ) (V/µs) 0.01 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.027 Vn at 1 kHz (typ) (nV√Hz) 45 CMRR (typ) (dB) 124 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.05 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05
PDIP (P) 8 92.5083 mm² (9.81 mm × 9.43 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • OPAx241 family optimized for 5V supply
  • OPAx251 family optimized for ±15V supply
  • Micro power: IQ = 25µA
  • Single-supply operation
  • Rail-to-rail output (within 50mV)
  • Wide supply range
    • Single supply: 2.7V to 36V
    • Dual supply: ±1.35V to ±18V
  • Low offset voltage: ±250µV max
  • High common-mode rejection: 124dB
  • High open-loop gain: 128dB
  • Single, dual, and quad
  • OPAx241 family optimized for 5V supply
  • OPAx251 family optimized for ±15V supply
  • Micro power: IQ = 25µA
  • Single-supply operation
  • Rail-to-rail output (within 50mV)
  • Wide supply range
    • Single supply: 2.7V to 36V
    • Dual supply: ±1.35V to ±18V
  • Low offset voltage: ±250µV max
  • High common-mode rejection: 124dB
  • High open-loop gain: 128dB
  • Single, dual, and quad

The OPA241, OPA2241, OPA4241 (OPAx241), and OPA251, OPA2251, OPA4251 (OPAx251) devices are specifically designed for battery-powered, portable applications. In addition to very low power consumption (25µA), these amplifiers feature low offset voltage, rail-to-rail output swing, high common-mode rejection, and high open-loop gain.

The OPAx241 series is optimized for operation at low power supply voltage while the OPAx251 series is optimized for high-power supplies. Both series can operate from either single (2.7V to 36V) or dual supplies (±1.35V to ±18V). The input common-mode voltage range extends 200mV less than the negative supply—an excellent choice for single-supply applications.

The OPAx241 and OPAx251 are unity-gain stable and can drive large capacitive loads. Special design considerations makes sure that these products are easy to use. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±250µV max) is so low, user adjustment is usually not required. However, external trim pins are provided for special applications (single versions only).

The OPAx241 and OPAx251 are fully specified from −40°C to +85°C and operate from −55°C to +125°C.

The OPA241, OPA2241, OPA4241 (OPAx241), and OPA251, OPA2251, OPA4251 (OPAx251) devices are specifically designed for battery-powered, portable applications. In addition to very low power consumption (25µA), these amplifiers feature low offset voltage, rail-to-rail output swing, high common-mode rejection, and high open-loop gain.

The OPAx241 series is optimized for operation at low power supply voltage while the OPAx251 series is optimized for high-power supplies. Both series can operate from either single (2.7V to 36V) or dual supplies (±1.35V to ±18V). The input common-mode voltage range extends 200mV less than the negative supply—an excellent choice for single-supply applications.

The OPAx241 and OPAx251 are unity-gain stable and can drive large capacitive loads. Special design considerations makes sure that these products are easy to use. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±250µV max) is so low, user adjustment is usually not required. However, external trim pins are provided for special applications (single versions only).

The OPAx241 and OPAx251 are fully specified from −40°C to +85°C and operate from −55°C to +125°C.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos OPAx241, OPAx251 Single-Supply, MicroPower Operational Amplifiers datasheet (Rev. A) PDF | HTML 28/06/2024
Libro electrónico The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28/03/2017

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

AMP-PDK-EVM — Módulo de evaluación del kit de desarrollo del rendimiento del amplificador

El kit de desarrollo del rendimiento (PDK) del amplificador es un kit de módulo de evaluación (EVM) para probar los parámetros comunes del amplificador operacional y es compatible con la mayoría de los amplificadores operacionales y comparadores. El kit de EVM ofrece una placa principal con varias (...)

Guía del usuario: PDF | HTML
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Modelo de simulación

OPAx251 PSpice Model (Rev. F)

SBOM057F.ZIP (32 KB) - Modelo PSpice
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Modelo de simulación

OPAx251 TINA-TI Reference Design (Rev. F)

SBOC237F (322 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

OPAx251 TINA-TI Spice Model (Rev. E)

SBOM300E.ZIP (11 KB) - Modelo TINA-TI Spice
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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

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
PDIP (P) 8 Ultra Librarian
SOIC (D) 8 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. ​​​​​​​​​​​​​​

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