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Product details

Parameters

Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 7 Total supply voltage (Max) (+5V=5, +/-5V=10) 13 GBW (Typ) (MHz) 650 BW @ Acl (MHz) 650 Acl, min spec gain (V/V) 2 Slew rate (Typ) (V/us) 2550 Vn at flatband (Typ) (nV/rtHz) 8.9 Vn at 1 kHz (Typ) (nV/rtHz) 8.9 Iq per channel (Typ) (mA) 30.5 Vos (offset voltage @ 25 C) (Max) (mV) 5 Rail-to-rail No Rating Catalog Operating temperature range (C) -40 to 85 CMRR (Typ) (dB) 70 Input bias current (Max) (pA) 50 Offset drift (Typ) (uV/C) 10 Output current (Typ) (mA) 70 2nd harmonic (dBc) 79 3rd harmonic (dBc) 100 @ MHz 10 open-in-new Find other High-speed op amps (GBW>=50MHz)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 VSON (DRB) 8 9 mm² 3.0 x 3.0 open-in-new Find other High-speed op amps (GBW>=50MHz)

Features

  • High Bandwidth: 650 MHz (G = 1 V/V)
  • High Slew Rate: 2550 V/µs (4-V Step)
  • Excellent THD: –78 dBc at 10 MHz
  • Low Input Voltage Noise: 8.9 nV/√Hz
  • Fast Overdrive Recovery: 8 ns
  • Fast Settling time (1% 4-V Step): 8 ns
  • Low Input Offset Voltage: ±1 mV
  • Low Input Bias Current: ±10 pA
  • High Output Current: 70 mA
open-in-new Find other High-speed op amps (GBW>=50MHz)

Description

The OPA659 combines a very wideband, unity-gain stable, voltage-feedback operational amplifier with a JFET-input stage to offer an ultra-high dynamic range amplifier for high impedance buffering in data acquisition applications such as oscilloscope front-end amplifiers and machine vision applications such as photodiode transimpedance amplifiers used in wafer inspection.

The wide 650-MHz unity-gain bandwidth is complemented by a very high 2550-V/µs slew rate.

The high input impedance and low bias current provided by the JFET input are supported by the low 8.9-nV/&radic:Hz input voltage noise to achieve a very low integrated noise in wideband photodiode transimpedance applications.

Broad transimpedance bandwidths are possible with the high 350-MHz gain bandwidth product of this device.

Where lower speed with lower quiescent current is required, consider the OPA656. Where unity-gain stability is not required, consider the OPA657.

open-in-new Find other High-speed op amps (GBW>=50MHz)
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Technical documentation

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Type Title Date
* Data sheet OPA659 Wideband, Unity-Gain Stable, JFET-Input Operational Amplifier datasheet (Rev. C) Nov. 23, 2015
Technical article 3 common questions when designing with high-speed amplifiers Jul. 17, 2020
Technical article How to reduce distortion in high-voltage, high-frequency signal generation for AWGs Oct. 30, 2018
Technical article What are the advantages of using JFET-input amplifiers in high-speed applications? Jun. 19, 2018
Technical article 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
Application note Noise Analysis for High Speed Op Amps (Rev. A) Jan. 17, 2005

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

The OPA659EVM is an evaluation module for the DBR (8-lead VSON) package.

The OPA659EVM is designed to quickly and easily demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test instruments through the use of on-board connectors.

The (...)

Features
  • Shipped in non-inverting amplifier configuration
  • Easily converted to inverting amplifier configuration
  • 50-ohm input and output for easy connection to common test equipment via SMA connectors
  • Connectors: Vs+, Vs-, GND, IN+, IN-, OUT and test point

Design tools & simulation

SIMULATION MODEL Download
SBOM347C.TSC (122 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM348B.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM349C.ZIP (35 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
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 (...)
document-generic User guide
CALCULATION TOOL Download
Analog engineer's calculator
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
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)
CALCULATION TOOL Download
Voltage Divider Determines A Set of Resistors for a Voltage Divider
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.

(...)

CAD/CAE symbols

Package Pins Download
SON (DRB) 8 View options
SOT-23 (DBV) 5 View options

Ordering & quality

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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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