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

OPA855

ACTIVO

Amplificador de transimpedancia descompensado de 8 GHz de ancho de banda con entrada bipolar

Detalles del producto

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 GBW (typ) (MHz) 8000 BW at Acl (MHz) 2500 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 2750 Vn at flatband (typ) (nV√Hz) 0.98 Vn at 1 kHz (typ) (nV√Hz) 2.8 Iq per channel (typ) (mA) 17.8 Vos (offset voltage at 25°C) (max) (mV) 1.5 Rail-to-rail No Features Decompensated, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 100 Input bias current (max) (pA) 5000000 Offset drift (typ) (µV/°C) 0.5 Iout (typ) (mA) 80 2nd harmonic (dBc) 90 3rd harmonic (dBc) 86 Frequency of harmonic distortion measurement (MHz) 10
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 GBW (typ) (MHz) 8000 BW at Acl (MHz) 2500 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 2750 Vn at flatband (typ) (nV√Hz) 0.98 Vn at 1 kHz (typ) (nV√Hz) 2.8 Iq per channel (typ) (mA) 17.8 Vos (offset voltage at 25°C) (max) (mV) 1.5 Rail-to-rail No Features Decompensated, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 100 Input bias current (max) (pA) 5000000 Offset drift (typ) (µV/°C) 0.5 Iout (typ) (mA) 80 2nd harmonic (dBc) 90 3rd harmonic (dBc) 86 Frequency of harmonic distortion measurement (MHz) 10
DIESALE (Y) See data sheet WSON (DSG) 8 4 mm² 2 x 2
  • High gain bandwidth product: 8GHz
  • Decompensated, gain ≥ 7V/V (stable)
  • Low input voltage noise: 0.98nV/√Hz
  • Slew rate: 2750V/µs
  • Low Input capacitance:
    • Common-mode: 0.6pF
    • Differential: 0.2pF
  • Wide input common-mode range:
    • 0.4V from positive supply
    • 1.1V from negative supply
  • 3VPP total output swing
  • Supply voltage range: 3.3V to 5.25V
  • Quiescent current: 17.8mA
  • Package: 8-pin WSON
    • Bare die
  • Temperature range: –40°C to +125°C
  • High gain bandwidth product: 8GHz
  • Decompensated, gain ≥ 7V/V (stable)
  • Low input voltage noise: 0.98nV/√Hz
  • Slew rate: 2750V/µs
  • Low Input capacitance:
    • Common-mode: 0.6pF
    • Differential: 0.2pF
  • Wide input common-mode range:
    • 0.4V from positive supply
    • 1.1V from negative supply
  • 3VPP total output swing
  • Supply voltage range: 3.3V to 5.25V
  • Quiescent current: 17.8mA
  • Package: 8-pin WSON
    • Bare die
  • Temperature range: –40°C to +125°C

The OPA855 is a wideband, low-noise operational amplifier with bipolar inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 8GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths at transimpedance gains of up to tens of kilohms.

The following graph shows the bandwidth and noise performance of the OPA855 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from dc to the calculated frequency (f) on the left scale. The OPA855 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA855 is optimized to operate in optical time-of-flight (ToF) systems where the OPA855 is used with time-to-digital converters, such as the TDC7201. Use the OPA855 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as the THS4541 or LMH5401 devices.

The OPA855 is a wideband, low-noise operational amplifier with bipolar inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 8GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths at transimpedance gains of up to tens of kilohms.

The following graph shows the bandwidth and noise performance of the OPA855 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from dc to the calculated frequency (f) on the left scale. The OPA855 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA855 is optimized to operate in optical time-of-flight (ToF) systems where the OPA855 is used with time-to-digital converters, such as the TDC7201. Use the OPA855 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as the THS4541 or LMH5401 devices.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Funcionalidad similar a la del dispositivo comparado
LMH32401 ACTIVO Amplificador de transimpedancia de alta velocidad de salida diferencial de ganancia programable This device has an integrated TIA with differential outputs for LiDAR applications
LMH34400 ACTIVO Amplificador de transimpedancia monofásico de 240 MHz con abrazadera integrada y cancelación de luz Integrated transimpedance amplifier with 40 kΩ gain for single-ended optical systems

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 19
Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet OPA855 8GHz Gain Bandwidth Product, Gain of 7V/V Stable, Bipolar Input Amplifier datasheet (Rev. D) PDF | HTML 01 may 2025
White paper An Introduction to Automotive LIDAR (Rev. D) PDF | HTML 16 abr 2025
Circuit design Transimpedance amplifier circuit. (Rev. B) PDF | HTML 26 sep 2024
Application brief LiFi: TI High-Speed Products for Optical Wireless Communication PDF | HTML 07 ago 2023
Certificate OPA855DSGEVM EU Declaration of Conformity (DoC) 21 jun 2023
Application brief Time of Flight and LIDAR - Optical Front End Design (Rev. A) PDF | HTML 29 abr 2022
Application note High Speed ADCs and Amplifiers for Flow Cytometry Applications 12 oct 2020
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 17 jul 2020
Analog Design Journal Maximizing the dynamic range of analog fronts ends having a transimpedance amp 14 jun 2019
Analog Design Journal Easily improve the performance of analog circuits with decompensated amplifiers (Rev. A) 21 may 2019
Technical article What you need to know about transimpedance amplifiers – part 2 PDF | HTML 01 sep 2016
Technical article What you need to know about transimpedance amplifiers – part 1 PDF | HTML 06 may 2016
Technical article SPICE it up: How to extract the input capacitance of an op amp (part 3) PDF | HTML 21 mar 2016
Application note AN-1604 Decompensated Operational Amplifiers (Rev. B) 01 may 2013
Application note AN-1803 Design Considerations for a Transimpedance Amplifier (Rev. A) 01 may 2013
Application note Transimpedance Considerations for High-Speed Operational Amplifiers 22 nov 2009
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 mar 2005
Analog Design Journal Using a decompensated op amp for improved performance 11 mar 2005
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 ene 2005

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

DEM-OPA-WSON8-EVM — Módulo de evaluación despoblado para amplificadores operacionales de canal único en encapsulado DSG

El DEM-OPA-WSON8-EVM es un módulo de evaluación despoblado para los amplificadores operacionales de canal único en el encapsulado DSG (WSON de 8 pines). Este módulo de evaluación está diseñado según especificaciones de rendimiento de alta velocidad y es compatible con amplificadores que tienen más (...)
Guía del usuario: PDF
Placa de evaluación

OPA855DSGEVM — Módulo de evaluación OPA855DSG

El OPA855DSG EVM es un módulo de evaluación para el OPA855 en el encapsulado DSG (WSON de 8 pines). El EVM OPA855DSG está diseñado para demostrar rápidamente la funcionalidad y versatilidad del amplificador. El módulo de evaluación está listo para conectarse a la alimentación, la fuente de señal y (...)

Guía del usuario: PDF
Modelo de simulación

OPA855 TINA-TI Spice Model (Rev. C)

SBOMAP6C.TSC (1816 KB) - TINA-TI Spice Model
Modelo de simulación

OPA855 Unencrypted PSpice Model Package (Rev. D)

SBOMB43D.ZIP (37 KB) - PSpice Model
Modelo de simulación

OPA855 Unencrypted TINA-TI Reference Design Package (Rev. C)

SBOMAP7C.TSC (167 KB) - TINA-TI Reference Design
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 cálculo

VOLT-DIVIDER-CALC — Voltage divider calculation tool

<
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
DIESALE (Y)
WSON (DSG) 8 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. ​​​​​​​​​​​​​​

Videos