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

OPA698

ACTIVO

Amplificador limitador de voltaje de banda ancha, estable y de ganancia unitaria

Detalles del producto

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 300 BW at Acl (MHz) 650 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1800 Vn at flatband (typ) (nV√Hz) 4 Vn at 1 kHz (typ) (nV√Hz) 5.9 Iq per channel (typ) (mA) 15.5 Vos (offset voltage at 25°C) (max) (mV) 5 Rail-to-rail No Features Integrated Clamps Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 61 Input bias current (max) (pA) 10000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 190 2nd harmonic (dBc) 74 3rd harmonic (dBc) 87 Frequency of harmonic distortion measurement (MHz) 5
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 300 BW at Acl (MHz) 650 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1800 Vn at flatband (typ) (nV√Hz) 4 Vn at 1 kHz (typ) (nV√Hz) 5.9 Iq per channel (typ) (mA) 15.5 Vos (offset voltage at 25°C) (max) (mV) 5 Rail-to-rail No Features Integrated Clamps Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 61 Input bias current (max) (pA) 10000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 190 2nd harmonic (dBc) 74 3rd harmonic (dBc) 87 Frequency of harmonic distortion measurement (MHz) 5
SOIC (D) 8 29.4 mm² 4.9 x 6
  • High linearity near limiting
  • Fast recovery from overdrive: 1ns
  • Limiting voltage accuracy: ±5mV
  • –3db bandwidth (g = +1): 650MHz
  • Gain bandwidth product: 300MHz
  • Slew rate: 1800V/µs
  • ±5V and +5V supply operation
  • High-gain version available: OPA699
  • High linearity near limiting
  • Fast recovery from overdrive: 1ns
  • Limiting voltage accuracy: ±5mV
  • –3db bandwidth (g = +1): 650MHz
  • Gain bandwidth product: 300MHz
  • Slew rate: 1800V/µs
  • ±5V and +5V supply operation
  • High-gain version available: OPA699

The OPA698 is a wide-band, unity-gain stable voltage-feedback op amp that offers bipolar output voltage limiting. Two buffered limiting voltages take control of the output when attempting to drive beyond these limits. This new output limiting architecture holds the limiter offset error to ±5mV.

The op amp operates linearly to within 20mV of the output limit voltages. The combination of a narrow nonlinear range and the low limiting offset allows the limiting voltages to be set within 100mV of the desired linear output range. A fast 1ns recovery from limiting provides overdrive signals that are transparent to the signal channel. Implementing the limiting function at the output, as opposed to the input, gives the specified limiting accuracy for any gain, and allows the OPA698 to be used in all standard op-amp applications.

Nonlinear analog signal processing benefits from the ability of the OPA698 to sharply transition from linear operation to output limiting. The quick recovery time supports high-speed applications.

The OPA698 is available in an industry-standard pin-out SOIC-8 package. For higher gain, or transimpedance applications that require output limiting with fast recovery, consider the OPA699.

The OPA698 is a wide-band, unity-gain stable voltage-feedback op amp that offers bipolar output voltage limiting. Two buffered limiting voltages take control of the output when attempting to drive beyond these limits. This new output limiting architecture holds the limiter offset error to ±5mV.

The op amp operates linearly to within 20mV of the output limit voltages. The combination of a narrow nonlinear range and the low limiting offset allows the limiting voltages to be set within 100mV of the desired linear output range. A fast 1ns recovery from limiting provides overdrive signals that are transparent to the signal channel. Implementing the limiting function at the output, as opposed to the input, gives the specified limiting accuracy for any gain, and allows the OPA698 to be used in all standard op-amp applications.

Nonlinear analog signal processing benefits from the ability of the OPA698 to sharply transition from linear operation to output limiting. The quick recovery time supports high-speed applications.

The OPA698 is available in an industry-standard pin-out SOIC-8 package. For higher gain, or transimpedance applications that require output limiting with fast recovery, consider the OPA699.

Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 8
Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet OPA698 Unity-Gain Stable, Wideband Voltage Limiting Amplifier datasheet (Rev. E) PDF | HTML 10 abr 2025
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 mar 2017
Application note RLC Filter Design for ADC Interface Applications (Rev. A) 13 may 2015
Application note ADC Input Protection 04 sep 2013
Application note Video Designs Using High-Speed Amplifiers (Rev. A) 03 feb 2005
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 ene 2005
Application note ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers 22 abr 2004
Application note Measuring Board Parasitics in High-Speed Analog Design 07 jul 2003

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-SO-1A — Módulo de evaluación de amplificador operacional simple para encapsulado SO-8

The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

Guía del usuario: PDF
Modelo de simulación

OPA698 PSpice Model

SBOC045.ZIP (1 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
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 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