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Amplificadores operacionales (op amps)
Amplificadores operacionales de alta velocidad (GBW ≥ 50 MHz)

LMP8672

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Amplificadores dobles de precisión de 40 V y bajo ruido

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LMP8672

ACTIVO
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Detalles del producto

Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 44 GBW (typ) (MHz) 55 BW at Acl (MHz) 55 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 20 Vn at flatband (typ) (nV√Hz) 2.5 Vn at 1 kHz (typ) (nV√Hz) 2.5 Iq per channel (typ) (mA) 6.25 Vos (offset voltage at 25°C) (max) (mV) 0.4 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 115 Input bias current (max) (pA) 200000 Offset drift (typ) (µV/°C) 0.1 Iout (typ) (mA) 42
Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 44 GBW (typ) (MHz) 55 BW at Acl (MHz) 55 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 20 Vn at flatband (typ) (nV√Hz) 2.5 Vn at 1 kHz (typ) (nV√Hz) 2.5 Iq per channel (typ) (mA) 6.25 Vos (offset voltage at 25°C) (max) (mV) 0.4 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 115 Input bias current (max) (pA) 200000 Offset drift (typ) (µV/°C) 0.1 Iout (typ) (mA) 42
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Output Short Circuit Protection
  • PSRR and CMRR Exceed 110dB
  • Best in Class Linearity (135dB)

Key Specifications

  • Input Offset Voltage 0.4mV
  • TC VOS 2μV/°C (max)
  • Power Supply Voltage Range ±2.5V to ±20V
  • Voltage Noise Density 2.5nV/√Hz
  • Slew Rate ±20V/μs
  • Gain Bandwidth Product 55MHz
  • Open Loop Gain 135dB
  • Input Bias Current 10nA

All trademarks are the property of their respective owners.

  • Output Short Circuit Protection
  • PSRR and CMRR Exceed 110dB
  • Best in Class Linearity (135dB)

Key Specifications

  • Input Offset Voltage 0.4mV
  • TC VOS 2μV/°C (max)
  • Power Supply Voltage Range ±2.5V to ±20V
  • Voltage Noise Density 2.5nV/√Hz
  • Slew Rate ±20V/μs
  • Gain Bandwidth Product 55MHz
  • Open Loop Gain 135dB
  • Input Bias Current 10nA

All trademarks are the property of their respective owners.

The LMP8671/2/4 combines great precision, low noise and a large operating voltage range to provide a high SNR and a wide dynamic range. Its AC performance allows it to be used over a wide frequency without degradation. It is the ideal choice for applications requiring DC precision and low noise such as precision PLL filters, multi feedback and multi pole active filters, GPS receivers and precision control loop systems. The LMP8671/2/4 offers an extremely high open loop gain of 135dB, low voltage noise density (2.5nV/√Hz), and a superb linearity of 0.000009%. These characteristics drastically reduce gain error which is a challenge in accurate systems requiring higher gains such as data acquisition systems.

To ensure that the most challenging loads are driven without compromise, the LMP8671/2/4 has a high slew rate of ±20V/μs and an output current capability of ±26mA.

The LMP8671/2 family of high-voltage amplifiers are available in SOIC-8, the LMP8674 in SOIC-14.

The LMP8671/2/4 combines great precision, low noise and a large operating voltage range to provide a high SNR and a wide dynamic range. Its AC performance allows it to be used over a wide frequency without degradation. It is the ideal choice for applications requiring DC precision and low noise such as precision PLL filters, multi feedback and multi pole active filters, GPS receivers and precision control loop systems. The LMP8671/2/4 offers an extremely high open loop gain of 135dB, low voltage noise density (2.5nV/√Hz), and a superb linearity of 0.000009%. These characteristics drastically reduce gain error which is a challenge in accurate systems requiring higher gains such as data acquisition systems.

To ensure that the most challenging loads are driven without compromise, the LMP8671/2/4 has a high slew rate of ±20V/μs and an output current capability of ±26mA.

The LMP8671/2 family of high-voltage amplifiers are available in SOIC-8, the LMP8674 in SOIC-14.
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Documentación técnica

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Tipo Título Fecha
* Data sheet LMP8671/72/74 Single, Dual, and Quad 40V Low Noise Precision Amplifiers datasheet (Rev. B) 27 mar 2013
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 mar 2017

Diseño y desarrollo

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Modelo de simulación

LMP8672 PSpice Model (Rev. A)

SNOM004A.ZIP (62 KB) - PSpice Model
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Modelo de simulación

LMP8672 TINA-TI Reference Design

SNOM318.TSC (36 KB) - TINA-TI Reference Design
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Modelo de simulación

LMP8672 TINA-TI Spice Model

SNOM317.ZIP (8 KB) - TINA-TI Spice Model
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Herramienta de cálculo

ANALOG-ENGINEER-CALC — Calculadora para ingenieros analógicos

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 (...)
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VOLT-DIVIDER-CALC — Voltage divider calculation tool

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

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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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 (...)
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