OPA2695

Package | Pins | Size

SOIC (D)

19 mm² 3.91 x 4.9

VQFN (RGT)

9 mm² 3 x 3

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Features

GAIN = +2V/V BANDWIDTH (850MHz)
GAIN = +8V/V BANDWIDTH (450MHz)
OUTPUT VOLTAGE SWING: ±4.1V
ULTRA-HIGH SLEW RATE: 2900V/µs
DIFFERENTIAL 3RD-ORDER INTERCEPT:
> 40dBm (f < 140MHz, 800 )
LOW POWER: 129mW/channel
LOW DISABLED POWER: 0.5mW/channel
APPLICATIONS
- VERY WIDEBAND ADC DRIVERS
- LOW-COST PRECISION IF AMPLIFIERS
- BROADBAND VIDEO LINE DRIVERS
- PORTABLE INSTRUMENTS
- ACTIVE FILTERS
- ARB WAVEFORM OUTPUT DRIVERS

PowerPAD is a trademark of Texas Instruments, Inc.
All other trademarks are the property of their respective owners.

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The OPA2695 is a dual, very high bandwidth, current-feedback op amp that combines exceptional 2900V/µs slew rate and low input voltage noise to deliver a precision, low-cost, high dynamic range intermediate frequency (IF) amplifier. The device has been optimized for high gain operation, and the pin outs of the two available packages (QFN-16, SO-8) have been optimized to provide symmetrical input and output paths. This architecture makes the OPA2695 an ideal choice as a differential driver, such as for a high-speed analog-to-digital converter (ADC).

The OPA2695 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 with the optional disable control pin. Leaving this pin open, or holding it high, gives normal operation. If pulled low, the OPA2695 supply current drops to less than 200µA/channel. This power-saving feature, along with exceptional single +5V operation, makes the OPA2695 ideal for portable applications. The OPA2695 is available in an SO-8 (without disable) package or QFN-16 package (with disable).

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Dual op-amp SO-8 (flow-through pinout) generic evaulation module

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Technical documentation

= Top documentation for this product selected by TI

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	Type	Title	Date
*	Datasheet	Dual, Ultra-Wideband, Current-Feedback Operational Amplifier with Disable datasheet (Rev. A)	Aug. 29, 2008
	Technical articles	How to reduce distortion in high-voltage, high-frequency signal generation for AWGs	Oct. 30, 2018
	Technical articles	What are the advantages of using JFET-input amplifiers in high-speed applications?	Jun. 18, 2018
	Technical articles	Unique active mux capability combines buffer and switch into one solution	Oct. 10, 2017
	E-book	The Signal e-book: A compendium of blog posts on op amp design topics	Mar. 28, 2017
	Technical articles	How to minimize filter loss when you drive an ADC	Oct. 20, 2016
	Application note	Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A)	Sep. 10, 2010
	Application note	Wireline Data Transmission and Reception	Jan. 27, 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download

DEM-OPA-SO-2E

Features

Free
Unpopulated demonstration fixture

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Design tools & simulation

SIMULATION MODEL Download

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SBOM386.TSC (55 KB) - TINA-TI Reference Design

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PSpice® for TI design and simulation tool

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)

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Features

Leverages Cadence PSpice Technology
Preinstalled library with a suite of digital models to enable worst-case timing analysis
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SPICE-based analog simulation program

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TINA-TI — 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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Analog engineer's calculator

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ANALOG-ENGINEER-CALC — 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 op-amp gain with feedback (...)

Features

Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
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Voltage Divider Determines A Set of Resistors for a Voltage Divider

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VOLT-DIVIDER-CALC — VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

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