1.8GHz Current Feedback Amplifier

THS3201 is not recommended for new designs
Although this product continues to be in production to support previous designs, we don't recommend it for new designs. Consider one of these alternates:
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Similar functionality to the compared device
THS3491 ACTIVE 900-MHz high-power-output current-feedback amplifier This current feedback amplifier (CFA) provides a new level of performance for applications requiring the lowest distortion at high output power levels from DC through values greater than 100 MHz at 100-Ω loads

Product details

Architecture Current FB Number of channels 1 GBW (typ) (MHz) 1800 BW at Acl (MHz) 1800 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6700 Vn at flatband (typ) (nV√Hz) 1.65 Vn at 1 kHz (typ) (nV√Hz) 1.65 Iq per channel (typ) (mA) 14 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 71 Input bias current (max) (pA) 35000000 Offset drift (typ) (µV/°C) 10 Iout (typ) (mA) 115 2nd harmonic (dBc) 69 3rd harmonic (dBc) 75 Frequency of harmonic distortion measurement (MHz) 10
Architecture Current FB Number of channels 1 GBW (typ) (MHz) 1800 BW at Acl (MHz) 1800 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6700 Vn at flatband (typ) (nV√Hz) 1.65 Vn at 1 kHz (typ) (nV√Hz) 1.65 Iq per channel (typ) (mA) 14 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 71 Input bias current (max) (pA) 35000000 Offset drift (typ) (µV/°C) 10 Iout (typ) (mA) 115 2nd harmonic (dBc) 69 3rd harmonic (dBc) 75 Frequency of harmonic distortion measurement (MHz) 10
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Unity-Gain Bandwidth: 1.8 GHz
  • High Slew Rate: 6700 V/µs (G = 2 V/V, RL = 100 , 10-V Step)
  • IMD3: -78 dBc at 20 MHz: (G = 10 V/V, RL = 100 , 2-VPP Envelope)
  • Noise Figure: 11 dB (G = 10 V/V, RG = 28 , RF = 255 )
  • Input-Referred Noise (f >10 MHz)
    • Voltage Noise: 1.65 nV/Hz
    • Noninverting Current Noise: 13.4 pA/Hz
    • Inverting Current Noise: 20 pA/Hz
  • Output Drive: 100 mA
  • Power-Supply Voltage Range: ±3.3 V to ±7.5 V
  • APPLICATIONS
    • Test and Measurement
    • ATE
    • High-Resolution, High-Sampling Rate ADC Drivers
    • High-Resolution, High-Sampling Rate DAC Output Buffers

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

  • Unity-Gain Bandwidth: 1.8 GHz
  • High Slew Rate: 6700 V/µs (G = 2 V/V, RL = 100 , 10-V Step)
  • IMD3: -78 dBc at 20 MHz: (G = 10 V/V, RL = 100 , 2-VPP Envelope)
  • Noise Figure: 11 dB (G = 10 V/V, RG = 28 , RF = 255 )
  • Input-Referred Noise (f >10 MHz)
    • Voltage Noise: 1.65 nV/Hz
    • Noninverting Current Noise: 13.4 pA/Hz
    • Inverting Current Noise: 20 pA/Hz
  • Output Drive: 100 mA
  • Power-Supply Voltage Range: ±3.3 V to ±7.5 V
  • APPLICATIONS
    • Test and Measurement
    • ATE
    • High-Resolution, High-Sampling Rate ADC Drivers
    • High-Resolution, High-Sampling Rate DAC Output Buffers

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

The THS3201 is a wideband, high-speed current-feedback amplifier, designed to operate over a wide supply range of ±3.3 V to ±7.5 V for today's high performance applications.

The wide supply range, combined with low distortion and high slew rate, makes the THS3201 ideally suited for arbitrary waveform driver applications. The distortion performance also enables driving high-resolution and high-sampling rate analog-to-digital converters (ADCs).

Its high voltage operation capabilities make the THS3201 especially suitable for many test, measurement, and ATE applications where lower voltage devices do not offer enough voltage swing capability. Output rise and fall times are nearly independent of step size (to first-order approximation), making the THS3201 ideal for buffering small to large step pulses with excellent linearity in high dynamic systems.

The THS3201 is offered in a 5-pin SOT-23, 8-pin SOIC, and an 8-pin MSOP with PowerPAD™ packages.

The THS3201 is a wideband, high-speed current-feedback amplifier, designed to operate over a wide supply range of ±3.3 V to ±7.5 V for today's high performance applications.

The wide supply range, combined with low distortion and high slew rate, makes the THS3201 ideally suited for arbitrary waveform driver applications. The distortion performance also enables driving high-resolution and high-sampling rate analog-to-digital converters (ADCs).

Its high voltage operation capabilities make the THS3201 especially suitable for many test, measurement, and ATE applications where lower voltage devices do not offer enough voltage swing capability. Output rise and fall times are nearly independent of step size (to first-order approximation), making the THS3201 ideal for buffering small to large step pulses with excellent linearity in high dynamic systems.

The THS3201 is offered in a 5-pin SOT-23, 8-pin SOIC, and an 8-pin MSOP with PowerPAD™ packages.

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Technical documentation

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Type Title Date
* Data sheet THS3201: 1.8-GHz, Low Distortion, Current-Feedback Amplifiers datasheet (Rev. C) 29 May 2009
Application note Load Sharing Concepts: Implementation for Large-Signal Applications 05 Oct 2011
Application note Large-Signal Specifications for High-Voltage Line Drivers 30 Jun 2011
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 Jan 2005

Design & development

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

Evaluation board

THS3201EVM — THS3201 Evaluation Module

The THS3201EVM provides a platform for evaluating the THS3201 high-speed current-feedback amplifier. The user needs only power, input signal, and test instruments to operate the EVM. The gain can be changed by changing the feedback and gain resistors. For a list of recommended resistor values, see (...)

Not available on TI.com
Simulation model

THS3201 ADS Model

SLOJ176.ZIP (12 KB) - Spice Model
Simulation model

THS3201 PSpice Model

SLOC004.ZIP (5 KB) - PSpice Model
Calculation tool

ANALOG-ENGINEER-CALC — 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 (...)
Calculation tool

VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (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. VOLT-DIVIDER-CALC can also be used to (...)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
Package Pins Download
HVSSOP (DGN) 8 View options
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options

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