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

OPA858

ACTIVO

Amplificador de transimpedancia descompensada de 5,5 GHz con entrada FET

Detalles del producto

Architecture FET / CMOS Input, 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) 5500 BW at Acl (MHz) 1200 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 2000 Vn at flatband (typ) (nV√Hz) 2.5 Vn at 1 kHz (typ) (nV√Hz) 25 Iq per channel (typ) (mA) 20.5 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail No Features Decompensated, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 80 Input bias current (max) (pA) 5 Offset drift (typ) (µV/°C) 1.5 Iout (typ) (mA) 80 2nd harmonic (dBc) 80 3rd harmonic (dBc) 86 Frequency of harmonic distortion measurement (MHz) 10
Architecture FET / CMOS Input, 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) 5500 BW at Acl (MHz) 1200 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 2000 Vn at flatband (typ) (nV√Hz) 2.5 Vn at 1 kHz (typ) (nV√Hz) 25 Iq per channel (typ) (mA) 20.5 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail No Features Decompensated, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 80 Input bias current (max) (pA) 5 Offset drift (typ) (µV/°C) 1.5 Iout (typ) (mA) 80 2nd harmonic (dBc) 80 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: 5.5GHz
  • Decompensated, gain ≥ 7V/V (stable)
  • Ultra-low bias current MOSFET inputs: 10pA
  • Low input voltage noise: 2.5nV/√Hz
  • Slew rate: 2000V/µs
  • Low Input capacitance:
    • Common-mode: 0.6pF
    • Differential: 0.2pF
  • Wide input common-mode range:
    • 1.4V from positive supply
    • Includes negative supply
  • 2.5VPP output swing in TIA configuration
  • Supply voltage range: 3.3V to 5.25V
  • Quiescent current: 20.5mA
  • Package: 8-pin WSON
  • Temperature range: –40°C to +125°C
  • High gain bandwidth product: 5.5GHz
  • Decompensated, gain ≥ 7V/V (stable)
  • Ultra-low bias current MOSFET inputs: 10pA
  • Low input voltage noise: 2.5nV/√Hz
  • Slew rate: 2000V/µs
  • Low Input capacitance:
    • Common-mode: 0.6pF
    • Differential: 0.2pF
  • Wide input common-mode range:
    • 1.4V from positive supply
    • Includes negative supply
  • 2.5VPP output swing in TIA configuration
  • Supply voltage range: 3.3V to 5.25V
  • Quiescent current: 20.5mA
  • Package: 8-pin WSON
  • Temperature range: –40°C to +125°C

The OPA858 is a wideband, low-noise operational amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 5.5GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths at transimpedance gains in the range of tens to hundreds of kilohms.

The following graph shows the bandwidth and noise performance of the OPA858 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 OPA858 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA858 is optimized to operate in optical time-of-flight (ToF) systems where the OPA858 is used with time-to-digital converters, such as the TDC7201. Use the OPA858 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 OPA858 is a wideband, low-noise operational amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 5.5GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths at transimpedance gains in the range of tens to hundreds of kilohms.

The following graph shows the bandwidth and noise performance of the OPA858 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 OPA858 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA858 is optimized to operate in optical time-of-flight (ToF) systems where the OPA858 is used with time-to-digital converters, such as the TDC7201. Use the OPA858 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 18
Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet OPA858 5.5GHz Gain Bandwidth Product, Gain of 7V/V Stable, FET Input Amplifier datasheet (Rev. B) PDF | HTML 05 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
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

OPA858DSGEVM — Módulo de evaluación OPA858, amplificador de transimpedancia descompensada de 5,5 GHz con entrada FE

El OPA858DSGEVM es un módulo de evaluación para el OPA858 simple en el encapsulado DSG (WSON de 8 pines). El OPA858DSGEVM 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 (...)
Guía del usuario: PDF
Modelo de simulación

OPA858 PSpice Model

SBOMBK7.ZIP (49 KB) - PSpice Model
Modelo de simulación

OPA858 TINA-TI Reference Design (Rev. B)

SBOMAM5B.TSC (66 KB) - TINA-TI Reference Design
Modelo de simulación

OPA858 TINA-TI Spice Model (Rev. B)

SBOMAM4B.ZIP (14 KB) - TINA-TI Spice Model
Modelo de simulación

OPA858, THS4541 Flow Cytometry Example Front End PSpice Reference Design

SBOMBL1.ZIP (27 KB) - PSpice 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 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
Diseños de referencia

TIDA-060025 — Diseño de referencia que maximiza el ancho de banda de transimpedancia para aplicaciones LiDAR y de

Este diseño demuestra un frontal óptico de alta velocidad con un circuito de medición de distancia por tiempo de vuelo (ToF) que utiliza un medio de transmisión de fibra óptica, que puede adaptarse a cualquier tipo de medición ToF, como por ejemplo a través del espacio libre. Este diseño presenta (...)
Design guide: PDF
Esquema: 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