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LMP2021

ACTIVO

Amplificador simple reforzado contra la EMI, de bajo ruido y con deriva cero

Detalles del producto

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.004 Input bias current (max) (pA) 100 GBW (typ) (MHz) 5 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 2.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.95 Vn at 1 kHz (typ) (nV√Hz) 11 CMRR (typ) (dB) 139 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 Architecture CMOS 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) 0.083 Output swing headroom (to positive supply) (typ) (V) -0.065
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.004 Input bias current (max) (pA) 100 GBW (typ) (MHz) 5 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 2.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.95 Vn at 1 kHz (typ) (nV√Hz) 11 CMRR (typ) (dB) 139 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 Architecture CMOS 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) 0.083 Output swing headroom (to positive supply) (typ) (V) -0.065
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)

    (Typical Values, TA = 25°C, VS = 5 V)

  • Input Offset Voltage (Typical) −0.4 µV
  • Input Offset Voltage (Max) ±5 µV
  • Input Offset Voltage Drift (Typical) –0.004 µV/°C
  • Input Offset Voltage Drift (Max) ±0.02 µV/°C
  • Input Voltage Noise, AV = 1000 11 nV/√Hz
  • Open Loop Gain 160 dB
  • CMRR 139 dB
  • PSRR 130 dB
  • Supply Voltage Range 2.2 V to 5.5 V
  • Supply Current (per Amplifier) 1.1 mA
  • Input Bias Current ±25 pA
  • GBW 5 MHz
  • Slew Rate 2.6 V/µs
  • Operating Temperature Range −40°C to 125°C
  • 5-Pin SOT-23, 8-Pin VSSOP and 8-Pin SOIC Packages

    (Typical Values, TA = 25°C, VS = 5 V)

  • Input Offset Voltage (Typical) −0.4 µV
  • Input Offset Voltage (Max) ±5 µV
  • Input Offset Voltage Drift (Typical) –0.004 µV/°C
  • Input Offset Voltage Drift (Max) ±0.02 µV/°C
  • Input Voltage Noise, AV = 1000 11 nV/√Hz
  • Open Loop Gain 160 dB
  • CMRR 139 dB
  • PSRR 130 dB
  • Supply Voltage Range 2.2 V to 5.5 V
  • Supply Current (per Amplifier) 1.1 mA
  • Input Bias Current ±25 pA
  • GBW 5 MHz
  • Slew Rate 2.6 V/µs
  • Operating Temperature Range −40°C to 125°C
  • 5-Pin SOT-23, 8-Pin VSSOP and 8-Pin SOIC Packages

The LMP2021 and LMP2022 are single and dual precision operational amplifiers offering ultra low input offset voltage, near zero input offset voltage drift, very low input voltage noise and very high open loop gain. They are part of the LMP precision family and are ideal for instrumentation and sensor interfaces.

The LMP202x has only 0.004 µV/°C of input offset voltage drift, and 0.4 µV of input offset voltage. These attributes provide great precision in high accuracy applications.

The proprietary continuous auto zero correction circuitry ensures impressive CMRR and PSRR, removes the 1/f noise component, and eliminates the need for calibration in many circuits.

With only 260 nVPP (0.1 Hz to 10 Hz) of input voltage noise and no 1/f noise component, the LMP202x are suitable for low frequency applications such as industrial precision weigh scales. The extremely high open loop gain of 160 dB drastically reduces gain error in high gain applications. With ultra precision DC specifications and very low noise, the LMP202x are ideal for position sensors, bridge sensors, pressure sensors, medical equipment and other high accuracy applications with very low error budgets.

The LMP2021 is offered in 5-Pin SOT-23 and 8-Pin SOIC packages. The LMP2022 is offered in 8-Pin VSSOP and 8-Pin SOIC packages.

The LMP2021 and LMP2022 are single and dual precision operational amplifiers offering ultra low input offset voltage, near zero input offset voltage drift, very low input voltage noise and very high open loop gain. They are part of the LMP precision family and are ideal for instrumentation and sensor interfaces.

The LMP202x has only 0.004 µV/°C of input offset voltage drift, and 0.4 µV of input offset voltage. These attributes provide great precision in high accuracy applications.

The proprietary continuous auto zero correction circuitry ensures impressive CMRR and PSRR, removes the 1/f noise component, and eliminates the need for calibration in many circuits.

With only 260 nVPP (0.1 Hz to 10 Hz) of input voltage noise and no 1/f noise component, the LMP202x are suitable for low frequency applications such as industrial precision weigh scales. The extremely high open loop gain of 160 dB drastically reduces gain error in high gain applications. With ultra precision DC specifications and very low noise, the LMP202x are ideal for position sensors, bridge sensors, pressure sensors, medical equipment and other high accuracy applications with very low error budgets.

The LMP2021 is offered in 5-Pin SOT-23 and 8-Pin SOIC packages. The LMP2022 is offered in 8-Pin VSSOP and 8-Pin SOIC packages.

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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 LMP202x Zero-Drift, Low-Noise, EMI-Hardened Amplifiers datasheet (Rev. G) PDF | HTML 29/02/2016
Artículo técnico How to design an infrared thermometer quickly PDF | HTML 7/04/2020
Libro electrónico The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28/03/2017
Analog Design Journal Industrial-strength design considerations to prevent thermal and EMI damage 11/04/2014
Guía del usuario LMP2021MAEVAL - Bridge Sensor Instrumentation Amp Evaluation Board User Guide (Rev. A) 22/04/2013

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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Placa de evaluación

LMP2021MAEVAL — Placa de evaluación LMP2021MA de amplificador de instrumentación de sensor de puente

The LMP2021MAEVAL Instrumentation Amplifier Evaluation Board is configured as a differential-in, differential-out amplifier using the LMP2021. Also included is a precision reference and buffer to drive a bridge sensor. The board is set up to be used with the ADC141S626 Evaluation Board (Part (...)

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Soporte de software

OPAMPS-SELGUIDE — Software SelGuide de productos de amplificación

Selguide is a software tool designed to guide the user in selecting our Operational Amplifier, Buffer and Comparator products by enabling the user to enter in a few key parameters and have a list of devices meeting those parameters returned to them.

Included in the results is a summary table of key (...)

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Modelo de simulación

LMP202x PSpice Model (Rev. E)

SNOM099E.ZIP (30 KB) - Modelo PSpice
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Modelo de simulación

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SNOM645C (318 KB) - Diseño de referencia TINA-TI
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LMP202x TINA-TI Spice Model (Rev. C)

SNOM644C.ZIP (11 KB) - Modelo TINA-TI Spice
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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
SOIC (D) 8 Ultra Librarian
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Pedidos y calidad

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Soporte y capacitación

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