Product details

Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.75 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.25 BW @ Acl (MHz) 1600 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 4900 Architecture Fully Differential ADC Driver, Bipolar Vn at flatband (Typ) (nV/rtHz) 2 Iq per channel (Typ) (mA) 39.2 Rail-to-rail In to V- Vos (offset voltage @ 25 C) (Max) (mV) 4 Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 96 2nd harmonic (dBc) 117 3rd harmonic (dBc) 106 @ MHz 10 GBW (Typ) (MHz) 2000 Input bias current (Max) (pA) 15500000 Features Shutdown CMRR (Typ) (dB) 90 Rating Catalog
Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.75 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.25 BW @ Acl (MHz) 1600 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 4900 Architecture Fully Differential ADC Driver, Bipolar Vn at flatband (Typ) (nV/rtHz) 2 Iq per channel (Typ) (mA) 39.2 Rail-to-rail In to V- Vos (offset voltage @ 25 C) (Max) (mV) 4 Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 96 2nd harmonic (dBc) 117 3rd harmonic (dBc) 106 @ MHz 10 GBW (Typ) (MHz) 2000 Input bias current (Max) (pA) 15500000 Features Shutdown CMRR (Typ) (dB) 90 Rating Catalog
VQFN (RGT) 16 9 mm² 3 x 3
  • Fully-Differential Architecture
  • Common-Mode Input Range Includes the Negative Rail
  • Unity-Gain Stable
  • Bandwidth: 1.6 GHz (Gain = 0 dB)
  • Slew Rate: 4900 V/µs
  • 1% Settling Time: 3.3 ns
  • HD2: –72 dBc at 70 MHz
  • HD3: –87 dBc at 70 MHz
  • OIP2: 76 dBm at 70 MHz
  • OIP3: 42 dBm at 70 MHz
  • Input Voltage Noise: 2 nV/√Hz (f > 10 MHz)
  • Noise Figure: 21.8 dB (50- System, G = 6 dB)
  • Output Common-Mode Control
  • 5-V Power-Supply Current: 39.2 mA
  • Power-Down Capability: 0.65 mA
  • APPLICATIONS
    • 5-V Data-Acquisition Systems
    • High Linearity ADC Amplifiers
    • Wireless Communication
    • Medical Imaging
    • Test and Measurement

  • Fully-Differential Architecture
  • Common-Mode Input Range Includes the Negative Rail
  • Unity-Gain Stable
  • Bandwidth: 1.6 GHz (Gain = 0 dB)
  • Slew Rate: 4900 V/µs
  • 1% Settling Time: 3.3 ns
  • HD2: –72 dBc at 70 MHz
  • HD3: –87 dBc at 70 MHz
  • OIP2: 76 dBm at 70 MHz
  • OIP3: 42 dBm at 70 MHz
  • Input Voltage Noise: 2 nV/√Hz (f > 10 MHz)
  • Noise Figure: 21.8 dB (50- System, G = 6 dB)
  • Output Common-Mode Control
  • 5-V Power-Supply Current: 39.2 mA
  • Power-Down Capability: 0.65 mA
  • APPLICATIONS
    • 5-V Data-Acquisition Systems
    • High Linearity ADC Amplifiers
    • Wireless Communication
    • Medical Imaging
    • Test and Measurement

The THS4511 is a wideband, fully-differential operational amplifier designed for single-supply 5-V data-acquisition systems. It has very low noise at 2 nV/√Hz, and extremely low harmonic distortion of –72 dBc HD2 and –87 dBc HD3 at 70 MHz with 2 VPP, G = 0 dB, and 200- load. Slew rate is very high at 4900 Vµs and with settling time of 3.3 ns to 1% (2 V step) it is ideal for pulsed applications. It is designed for minimum gain of 0 dB.

To allow for dc coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 5-mV offset (typical) from the set voltage, when set within ±0.5 V of midsupply. The common-mode set point is set to midsupply by internal circuitry, which may be over-driven from an external source.

The THS4511 is a high-performance amplifier that has been optimized for use in 5-V single-supply data acquisition systems. The output has been optimized for best performance with its common-mode voltages set to midsupply, and the input has been optimized for performance over a wide range of common-mode input voltages. High performance at a low power-supply voltage enables single-supply 5-V data-acquisition systems while minimizing component count.

The THS4511 is offered in a quad, 16-pin leadless QFN package (RGT), and is characterized for operation over the full industrial temperature range from –40°C to +85°C.

The THS4511 is a wideband, fully-differential operational amplifier designed for single-supply 5-V data-acquisition systems. It has very low noise at 2 nV/√Hz, and extremely low harmonic distortion of –72 dBc HD2 and –87 dBc HD3 at 70 MHz with 2 VPP, G = 0 dB, and 200- load. Slew rate is very high at 4900 Vµs and with settling time of 3.3 ns to 1% (2 V step) it is ideal for pulsed applications. It is designed for minimum gain of 0 dB.

To allow for dc coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 5-mV offset (typical) from the set voltage, when set within ±0.5 V of midsupply. The common-mode set point is set to midsupply by internal circuitry, which may be over-driven from an external source.

The THS4511 is a high-performance amplifier that has been optimized for use in 5-V single-supply data acquisition systems. The output has been optimized for best performance with its common-mode voltages set to midsupply, and the input has been optimized for performance over a wide range of common-mode input voltages. High performance at a low power-supply voltage enables single-supply 5-V data-acquisition systems while minimizing component count.

The THS4511 is offered in a quad, 16-pin leadless QFN package (RGT), and is characterized for operation over the full industrial temperature range from –40°C to +85°C.

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Technical documentation

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Type Title Date
* Data sheet Wideband, Low-Noise, Low-Distortion, Fully-Diff Amp datasheet (Rev. E) 20 Nov 2009
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Technical article How to minimize filter loss when you drive an ADC 20 Oct 2016
Application note Fully-Differential Amplifiers (Rev. E) 19 Sep 2016
Technical article Go differential to differentiate your precision design 11 Aug 2016
Technical article How to use a fully differential amplifier as a level shifter 13 Jul 2016
Technical article What you need to know about internal ESD protection on integrated circuits 02 Dec 2015
Application note Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) 10 Sep 2010
Analog Design Journal Low-power, high-intercept interface to the ADS5424, 105-MSPS converter 10 Oct 2005
Analog Design Journal Analysis of fully differential amplifiers 11 Mar 2005
Analog Design Journal Fully differential amplifiers applications:Line termination,driving high-speed.. 02 Mar 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

THS4508EVM — THS4508 evaluation module

THS4508EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4508EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 10 dB and 50 ohm input and (...)

Not available on TI.com
Evaluation board

THS4511EVM — THS4511 evaluation module

THS4511EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4511EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0 dB and 50 ohm input and (...)

Not available on TI.com
Evaluation board

THS4513EVM — THS4513 evaluation module

THS4513EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4513EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0dB and 50 ohm input and (...)

Not available on TI.com
Evaluation board

THS4520EVM — THS4520 evaluation module

THS4520EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4520EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0 dB and 50 Ω (...)

Not available on TI.com
Simulation model

THS4511 PSpice Model (Rev. A)

SLOC072A.ZIP (56 KB) - PSpice Model
Simulation model

THS4511 TINA-TI Spice Model (Rev. A)

SLOM153A.ZIP (5 KB) - TINA-TI Spice Model
Simulation model

THS4511 TINA-TI Reference Design (Rev. B)

SLOM154B.TSC (76 KB) - TINA-TI Reference Design
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 (...)
Calculation tool

TI FDA Calculator

SBOR022.ZIP (1639 KB)
Package Pins Download
VQFN (RGT) 16 View options

Ordering & quality

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