Home Amplifiers Fully differential amplifiers
Home
Amplifiers
Fully differential amplifiers

THS4520

ACTIVE

Rail-to-Rail Output Wideband Fully Differential Amplifier

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
THS4541 ACTIVE High-Speed Differential I/O Amplifier Faster slew rate (1500 V/μs), lower voltage offset (0.45mV) and lower power (10.1 mA)

THS4520

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 BW at Acl (MHz) 620 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 570 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 2 Iq per channel (typ) (mA) 14.2 Rail-to-rail Out Vos (offset voltage at 25°C) (max) (mV) 2.5 Operating temperature range (°C) -40 to 85 Iout (typ) (mA) 105 2nd harmonic (dBc) 115 3rd harmonic (dBc) 123 Frequency of harmonic distortion measurement (MHz) 0.1 GBW (typ) (MHz) 1200 Input bias current (max) (pA) 10000000 Features Shutdown CMRR (typ) (dB) 84 Rating Catalog
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 BW at Acl (MHz) 620 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 570 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 2 Iq per channel (typ) (mA) 14.2 Rail-to-rail Out Vos (offset voltage at 25°C) (max) (mV) 2.5 Operating temperature range (°C) -40 to 85 Iout (typ) (mA) 105 2nd harmonic (dBc) 115 3rd harmonic (dBc) 123 Frequency of harmonic distortion measurement (MHz) 0.1 GBW (typ) (MHz) 1200 Input bias current (max) (pA) 10000000 Features Shutdown CMRR (typ) (dB) 84 Rating Catalog
VQFN (RGT) 16 9 mm² 3 x 3
  • Fully Differential Architecture With Rail-to-Rail Outputs
  • Centered Input Common-mode Range
  • Minimum Gain of 1 V/V (0 dB)
  • Bandwidth: 620 MHz
  • Slew Rate: 570 V/µs
  • 0.1% Settling Time: 7 ns
  • HD2: –115 dBc at 100 kHz, VOD = 8 VPP
  • HD3: –123 dBc at 100 kHz, VOD = 8 VPP
  • Input Voltage Noise: 2 nV/Hz (f >10 kHz)
  • Output Common-Mode Control
  • Power Supply:
    • Voltage: 3.3 V (±1.65 V) to 5 V (±2.5 V)
    • Current: 14.2 mA
  • Power-Down Capability: 15 µA
  • APPLICATIONS
    • 5-V and 3.3-V Data Acquisition Systems
    • High Linearity ADC Amplifier
    • Wireless Communication
    • Test and Measurement
    • Voice Processing Systems
  • Fully Differential Architecture With Rail-to-Rail Outputs
  • Centered Input Common-mode Range
  • Minimum Gain of 1 V/V (0 dB)
  • Bandwidth: 620 MHz
  • Slew Rate: 570 V/µs
  • 0.1% Settling Time: 7 ns
  • HD2: –115 dBc at 100 kHz, VOD = 8 VPP
  • HD3: –123 dBc at 100 kHz, VOD = 8 VPP
  • Input Voltage Noise: 2 nV/Hz (f >10 kHz)
  • Output Common-Mode Control
  • Power Supply:
    • Voltage: 3.3 V (±1.65 V) to 5 V (±2.5 V)
    • Current: 14.2 mA
  • Power-Down Capability: 15 µA
  • APPLICATIONS
    • 5-V and 3.3-V Data Acquisition Systems
    • High Linearity ADC Amplifier
    • Wireless Communication
    • Test and Measurement
    • Voice Processing Systems

The THS4520 is a wideband, fully differential operational amplifier designed for 5-V data acquisition systems. It has very low noise at 2 nV/ load. The slew rate is 570 V/µs, and with a settling time of 7 ns to 0.1% (2-V step), it is ideal for data acquisition applications. It is designed for unity gain stability.

To allow for dc coupling to ADCs, its unique output common-mode control circuit maintains the output common-mode voltage within 0.25 mV offset (typical) from the set voltage. The common-mode set point defaults to mid-supply by internal circuitry, which may be over-driven from an external source.

The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high performance at low power supply voltage, this makes for extremely high performance single supply 5-V and 3.3-V data acquisition systems.

The THS4520 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 THS4520 is a wideband, fully differential operational amplifier designed for 5-V data acquisition systems. It has very low noise at 2 nV/ load. The slew rate is 570 V/µs, and with a settling time of 7 ns to 0.1% (2-V step), it is ideal for data acquisition applications. It is designed for unity gain stability.

To allow for dc coupling to ADCs, its unique output common-mode control circuit maintains the output common-mode voltage within 0.25 mV offset (typical) from the set voltage. The common-mode set point defaults to mid-supply by internal circuitry, which may be over-driven from an external source.

The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high performance at low power supply voltage, this makes for extremely high performance single supply 5-V and 3.3-V data acquisition systems.

The THS4520 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.
filter Find other Fully differential amplifiers
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 7
Type Title Date
* Data sheet THS4520 Wideband, Low Noise, Low Distortion, Fully Differential Amplifier datasheet (Rev. B) 15 Mar 2007
Analog Design Journal Q3 2009 Issue Analog Applications Journal 24 Sep 2018
Analog Design Journal Q4 2009 Issue Analog Applications Journal 24 Sep 2018
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Analog Design Journal Using fully differential op amps as attenuators, Part 3 04 Oct 2009
Analog Design Journal Using fully differential op amps as attenuators, Part 2 14 Jul 2009
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

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

THS4520 PSpice Model (Rev. C)

SBOC225C.ZIP (33 KB) - PSpice Model
Download
Simulation model

THS4520 TINA-TI Reference Design (Rev. B)

SLOM157B.TSC (55 KB) - TINA-TI Reference Design
Download
Simulation model

THS4520 TINA-TI Spice Model (Rev. B)

SLOM156B.ZIP (5 KB) - TINA-TI Spice Model
Download
Calculation tool

SBOR022 — TI FDA Calculator

Supported products & hardware

Supported products & hardware

Products
Fully differential amplifiers
  • LMH6550 — 400MHz, Differential, High Speed Op Amps
  • LMH6551 — 370MHz, Differential, High Speed Op Amp
  • LMH6552 — 1.5 GHz Fully Differential Amplifier
  • LMH6553 — 900 MHz Fully Differential Amplifier with Output Limiting Clamp
  • LMH6554 — 2.8 GHz Ultra Linear Fully Differential Amplifier
  • LMP8350 — Ultra Low Distortion Fully Differential Precision ADC Driver with Selectable Power Modes
  • OPA862 — 12.6V, Low-noise, single-ended-to-differential, high input impedance amplifier
  • THS4120 — 3.3 V, 100 MHz, 43 V/us, Fully Differential CMOS Amplifier w/Shutdown
  • THS4121 — 3.3 V, 100 MHz, 43 V/us, Fully Differential CMOS Amplifier
  • THS4130 — 150MHz, Fully Differential Input/Output Low Noise Amplifier With Shutdown
  • THS4131 — Fully Differential Input/Output Low Noise Amplifier
  • THS4140 — 160MHz, Fully Differential Input/Output High Slew Rate Amplifier With Shutdown
  • THS4141 — 160MHz, Fully Differential Input/Output High Slew Rate Amplifier
  • THS4150 — 150MHz, Fully Differential Input/Output High Slew Rate Amplifier With Shutdown
  • THS4151 — 150MHz, Fully Differential Input/Output High Slew Rate Amplifier
  • THS4500 — 15V, High-Speed Fully Differential Amplifier with power-down
  • THS4501 — High-Speed Fully Differential Amplifier, +/-5 V
  • THS4503 — High-Speed Fully-Differential Amplifiers
  • THS4504 — Wideband, Low Distortion Fully Differential Amplifier with Shutdown
  • THS4505 — Wideband, Low-Distortion Fully Differential Amplifier
  • THS4508 — Wideband Fully Differential Amplifier
  • THS4509 — 1.9-GHz, Wideband, Low-Noise, Low-Distortion, Fully-Differential Amplifier
  • THS4511 — 1.6-GHz, unity-gain stable, wideband, low-noise, low distortion fully differential amplifier
  • THS4513 — 1.6-GHz, min gain 1-V/V, low-noise, low distortion fully differential amplifier
  • THS4520 — Rail-to-Rail Output Wideband Fully Differential Amplifier
  • THS4521 — Very low power rail-to-rail output fully differential amplifier
  • THS4522 — Very low power dual channel rail-to-rail output fully differential amplifier
  • THS4524 — Very low power quad channel rail-to-rail output fully differential amplifier
  • THS4531 — Ultra low power 0.25mA, RRO, fully differential amplifier
  • THS4531A — Ultra Low Power, RRO, Fully-Differential Amplifier
  • THS4532 — Dual, Ultra low power 0.25mA, RRO, fully differential amplifier
  • THS4541 — High-Speed Differential I/O Amplifier
  • THS4551 — Low Noise, Precision, 150MHz, Fully Differential Amplifier
  • THS4552 — Dual Channel, Low-Noise, Precision, 150-MHz, Fully Differential Amplifier
  • THS4561 — Low-power, 60-MHz, wide-supply-range fully differential amplifier
  • THS4567 — 220-MHz CMOS input fully differential amplifier with VICM and VOCM control
  • THS770006 — High-Speed Fully Differential ADC Driver Amplifier with +6dB Fixed Gain
Audio op amps
  • OPA1637 — High-fidelity, high-voltage (36-V), low-noise (3.7-nV/rtHz) Burr-Brown™ audio fully-differential amp
Precision op amps (Vos<1mV)
  • THP210 — High precision (40-μV, 0.1μV/C), high-voltage (36-V), low-noise (3.7-nV/√Hz), fully-differential amp
RF fully differential amplifiers (FDAs)
  • LMH3401 — 7-GHz, Ultra-Wideband, Fully Differential Amplifier
  • LMH5401 — 8-GHz Ultra wideband fully differential amplifier
Download
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 (...)
Request
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
View Options
Package Pins CAD symbols, footprints & 3D models
VQFN (RGT) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos