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

OPA3691

ACTIVO

Amplificador operacional triple de banda ancha con retroalimentación de corriente y deshabilitación

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OPA3691

ACTIVO
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Detalles del producto

Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 280 BW at Acl (MHz) 280 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 2100 Vn at flatband (typ) (nV√Hz) 1.7 Vn at 1 kHz (typ) (nV√Hz) 1.7 Iq per channel (typ) (mA) 5.1 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 35000000 Offset drift (typ) (µV/°C) 20 Iout (typ) (mA) 190 2nd harmonic (dBc) 70 3rd harmonic (dBc) 74 Frequency of harmonic distortion measurement (MHz) 5
Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 280 BW at Acl (MHz) 280 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 2100 Vn at flatband (typ) (nV√Hz) 1.7 Vn at 1 kHz (typ) (nV√Hz) 1.7 Iq per channel (typ) (mA) 5.1 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 35000000 Offset drift (typ) (µV/°C) 20 Iout (typ) (mA) 190 2nd harmonic (dBc) 70 3rd harmonic (dBc) 74 Frequency of harmonic distortion measurement (MHz) 5
SOIC (D) 16 59.4 mm² 9.9 x 6 SSOP (DBQ) 16 29.4 mm² 4.9 x 6
  • FLEXIBLE SUPPLY RANGE:
    +5V to +12V Single-Supply
    ±2.5V to ±6V Dual Supply
  • UNITY-GAIN STABLE: 280MHz (G = 1)
  • HIGH OUTPUT CURRENT: 190mA
  • OUTPUT VOLTAGE SWING: ±4.0V
  • HIGH SLEW RATE: 2100V/µs
  • LOW SUPPLY CURRENT: 5.1mA/ch
  • LOW DISABLED CURRENT: 150µA/ch
  • IMPROVED HIGH-FREQUENCY PINOUT
  • WIDEBAND +5V OPERATION: 190MHz (G = +2)
  • APPLICATIONS
    • RGB AMPLIFIERS
    • WIDEBAND INA
    • BROADBAND VIDEO BUFFERS
    • HIGH-SPEED IMAGING CHANNELS
    • PORTABLE INSTRUMENTS
    • ADC BUFFERS
    • ACTIVE FILTERS
    • CABLE DRIVERS

All trademarks are the property of their respective owners.
  • FLEXIBLE SUPPLY RANGE:
    +5V to +12V Single-Supply
    ±2.5V to ±6V Dual Supply
  • UNITY-GAIN STABLE: 280MHz (G = 1)
  • HIGH OUTPUT CURRENT: 190mA
  • OUTPUT VOLTAGE SWING: ±4.0V
  • HIGH SLEW RATE: 2100V/µs
  • LOW SUPPLY CURRENT: 5.1mA/ch
  • LOW DISABLED CURRENT: 150µA/ch
  • IMPROVED HIGH-FREQUENCY PINOUT
  • WIDEBAND +5V OPERATION: 190MHz (G = +2)
  • APPLICATIONS
    • RGB AMPLIFIERS
    • WIDEBAND INA
    • BROADBAND VIDEO BUFFERS
    • HIGH-SPEED IMAGING CHANNELS
    • PORTABLE INSTRUMENTS
    • ADC BUFFERS
    • ACTIVE FILTERS
    • CABLE DRIVERS

All trademarks are the property of their respective owners.

The OPA3691 sets a new level of performance for broadband, triple current-feedback op amps. Operating on a very low 5.1mA/ch supply current, the OPA3691 offers a slew rate and output power normally associated with a much higher supply current. A new output stage architecture delivers a high output current with minimal voltage headroom and crossover distortion. This gives exceptional single-supply operation. Using a single +5V supply, the OPA3691 can deliver a 1V to 4V output swing with over 120mA drive current and 150MHz bandwidth. This combination of features makes the OPA3691 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The OPA3691‘s low 5.1mA/ch supply current is precisely trimmed at 25°C. This trim, along with low drift over temperature, ensures lower maximum supply current than competing products. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA3691 supply current drops to less than 150µA/ch while the output goes into a high impedance state. This feature may be used for power savings.

The OPA3691 sets a new level of performance for broadband, triple current-feedback op amps. Operating on a very low 5.1mA/ch supply current, the OPA3691 offers a slew rate and output power normally associated with a much higher supply current. A new output stage architecture delivers a high output current with minimal voltage headroom and crossover distortion. This gives exceptional single-supply operation. Using a single +5V supply, the OPA3691 can deliver a 1V to 4V output swing with over 120mA drive current and 150MHz bandwidth. This combination of features makes the OPA3691 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The OPA3691‘s low 5.1mA/ch supply current is precisely trimmed at 25°C. This trim, along with low drift over temperature, ensures lower maximum supply current than competing products. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA3691 supply current drops to less than 150µA/ch while the output goes into a high impedance state. This feature may be used for power savings.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet Triple Wideband, Current-Feedback Operational Amplifier With Disable datasheet (Rev. E) 02 jul 2008
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 17 jul 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 mar 2017
User guide DEM-OPA-SO-3A User's Guide (Rev. A) 20 jun 2006
User guide DEM-OPA-SSOP-3A User's Guide (Rev. A) 20 jun 2006
Analog Design Journal Expanding the usability of current-feedback amplifiers 28 feb 2005
Analog Design Journal Active filters using current-feedback amplifiers 25 feb 2005
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 ene 2005
Application note Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance 28 abr 2004
Application note Current Feedback Amplifiers: Review, Stability Analysis, and Applications 20 nov 2000

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-3A — Módulo de evaluación de amplificador operacional triple para encapsulado SO-16

The DEM-OPA-SO-3A demonstration fixture helps designers evaluate the operation and performance of TI's triple, high speed, wideband operational amplifiers with disable. This unpopulated PC board (PCB) is compatible with products offered in the 16-lead SOIC (D) package with flow-through pin-out.
 
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Guía del usuario: PDF
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Placa de evaluación

DEM-OPA-SSOP-3A — Módulo de evaluación de amplificador operacional triple para encapsulado SSOP-16

Guía del usuario: PDF
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Modelo de simulación

OPA3691 PSpice Model

SBOM533.ZIP (37 KB) - PSpice Model
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Modelo de simulación

OPA3691 TINA-TI Reference Design

SBOM534.TSC (102 KB) - TINA-TI Reference Design
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Modelo de simulación

OPA3691 TINA-TI Spice Model

SBOM532.ZIP (6 KB) - TINA-TI Spice Model
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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

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Herramienta de cálculo

VOLT-DIVIDER-CALC — Voltage divider calculation tool

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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 (...)
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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
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 16 Ultra Librarian
SSOP (DBQ) 16 Ultra Librarian
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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

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