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High-speed op amps (GBW ≥ 50 MHz)

OPA3695

ACTIVE

Ultra-Wideband, Current-Feedback Operational Amplifier with Disable

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Data sheet

OPA3695

ACTIVE
Data sheet Order now

Product details

Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 1000 BW at Acl (MHz) 1000 Acl, min spec gain (V/V) 2 Slew rate (typ) (V/µs) 2400 Vn at flatband (typ) (nV√Hz) 1.8 Vn at 1 kHz (typ) (nV√Hz) 1.8 Iq per channel (typ) (mA) 12.9 Vos (offset voltage at 25°C) (max) (mV) 3.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 30000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 120 2nd harmonic (dBc) 65 3rd harmonic (dBc) 86 Frequency of harmonic distortion measurement (MHz) 10
Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 1000 BW at Acl (MHz) 1000 Acl, min spec gain (V/V) 2 Slew rate (typ) (V/µs) 2400 Vn at flatband (typ) (nV√Hz) 1.8 Vn at 1 kHz (typ) (nV√Hz) 1.8 Iq per channel (typ) (mA) 12.9 Vos (offset voltage at 25°C) (max) (mV) 3.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 30000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 120 2nd harmonic (dBc) 65 3rd harmonic (dBc) 86 Frequency of harmonic distortion measurement (MHz) 10
SSOP (DBQ) 16 29.4 mm² 4.9 x 6
  • 900MHz BANDWIDTH, GAIN = +2V/V
  • 450MHz BANDWIDTH, GAIN = +8V/V
  • WIDE OUTPUT VOLTAGE SWING: ±4V
  • ULTRA-HIGH SLEW RATE: 4300V/µs
  • 3RD-ORDER INTERCEPT: > 35dBm (f < 40MHz)
  • LOW 1.8nV/√Hz VOLTAGE NOISE
  • ±120mA OUTPUT CURRENT DRIVE
  • 12.9mA/Ch SUPPLY CURRENT (±5V)
  • LOW 0.1mA/Ch DISABLE CURRENT
  • 3.5V to 12V SINGLE-SUPPLY OPERATION
  • ±1.75V to ±6V SPLIT-SUPPLY OPERATION
  • APPLICATIONS
    • BROADBAND VIDEO LINE DRIVERS
    • VERY WIDEBAND ADC DRIVERS
    • HIGH BANDWIDTH INSTRUMENTATION AMPLIFIERS
    • HIGH-SPEED IMAGING
    • ACTIVE FILTERS
    • ARB WAVEFORM OUTPUT DRIVERS

All other trademarks are the property of their respective owners
  • 900MHz BANDWIDTH, GAIN = +2V/V
  • 450MHz BANDWIDTH, GAIN = +8V/V
  • WIDE OUTPUT VOLTAGE SWING: ±4V
  • ULTRA-HIGH SLEW RATE: 4300V/µs
  • 3RD-ORDER INTERCEPT: > 35dBm (f < 40MHz)
  • LOW 1.8nV/√Hz VOLTAGE NOISE
  • ±120mA OUTPUT CURRENT DRIVE
  • 12.9mA/Ch SUPPLY CURRENT (±5V)
  • LOW 0.1mA/Ch DISABLE CURRENT
  • 3.5V to 12V SINGLE-SUPPLY OPERATION
  • ±1.75V to ±6V SPLIT-SUPPLY OPERATION
  • APPLICATIONS
    • BROADBAND VIDEO LINE DRIVERS
    • VERY WIDEBAND ADC DRIVERS
    • HIGH BANDWIDTH INSTRUMENTATION AMPLIFIERS
    • HIGH-SPEED IMAGING
    • ACTIVE FILTERS
    • ARB WAVEFORM OUTPUT DRIVERS

All other trademarks are the property of their respective owners

The OPA3695 is a triple, very high bandwidth, current-feedback op amp that combines an exceptional 4300V/µs slew rate and a very high 900MHz bandwidth (G = +2V/V) to provide an amplifier that is ideal for the most demanding video applications. The device versatility is enhanced with a low 1.8nV/√Hz input voltage noise and an output stage that can swing within 1V from the supply rail to deliver a high dynamic range signal, making it well-suited for analog-to-digital converter (ADC) front-ends or digital-to-analog converter (DAC) output buffering. Optimized for high gain operation, the OPA3695 is also well-suited for buffering surface acoustic wave (SAW) filters in an intermediate frequency (IF) system.

The low 12.9mA/channel supply current is precisely trimmed at +25°C. This trim, along with a low temperature drift, gives low system power over temperature. System power may be further reduced using the Disable control pin. Leaving this pin open, or holding it high, gives normal operation. If pulled low, the OPA3695 supply current drops to 100µA/channel. This power-saving feature, along with exceptional single +5V operation, makes the OPA3695 a good fit for low-power applications that require very high performance. The OPA3695 is available in an SSOP-16 package.

The OPA3695 is a triple, very high bandwidth, current-feedback op amp that combines an exceptional 4300V/µs slew rate and a very high 900MHz bandwidth (G = +2V/V) to provide an amplifier that is ideal for the most demanding video applications. The device versatility is enhanced with a low 1.8nV/√Hz input voltage noise and an output stage that can swing within 1V from the supply rail to deliver a high dynamic range signal, making it well-suited for analog-to-digital converter (ADC) front-ends or digital-to-analog converter (DAC) output buffering. Optimized for high gain operation, the OPA3695 is also well-suited for buffering surface acoustic wave (SAW) filters in an intermediate frequency (IF) system.

The low 12.9mA/channel supply current is precisely trimmed at +25°C. This trim, along with a low temperature drift, gives low system power over temperature. System power may be further reduced using the Disable control pin. Leaving this pin open, or holding it high, gives normal operation. If pulled low, the OPA3695 supply current drops to 100µA/channel. This power-saving feature, along with exceptional single +5V operation, makes the OPA3695 a good fit for low-power applications that require very high performance. The OPA3695 is available in an SSOP-16 package.
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Technical documentation

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Type Title Date
* Data sheet Triple, Ultra-Wideband, Current-Feedback Operational Amplifier with Disable datasheet (Rev. A) 02 Sep 2008
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Technical article Cable equalization 101 – Automating your design (Part 1) 21 May 2013
More literature Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) 10 Sep 2010
User guide DEM-OPA-SSOP-3C User's Guide 28 Apr 2007

Design & development

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Evaluation board

DEM-OPA-SSOP-3C — Triple op amp evaluation module for SSOP-16 (flow-through pinout) package

User guide: PDF
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Evaluation board

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Evaluation board

OPA3695EVM — OPA3695 evaluation module

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OPAy695 TINA-TI Reference Design

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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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