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THS4532

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Dual, Ultra low power 0.25mA, RRO, fully differential amplifier

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Data sheet

THS4532

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 BW at Acl (MHz) 36 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 220 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 10 Iq per channel (typ) (mA) 0.25 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 0.4 Operating temperature range (°C) -40 to 125 Iout (typ) (mA) 26 2nd harmonic (dBc) 128 3rd harmonic (dBc) 137 Frequency of harmonic distortion measurement (MHz) 0.01 GBW (typ) (MHz) 27 Input bias current (max) (pA) 250000 Features Shutdown CMRR (typ) (dB) 116 Rating Catalog
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 BW at Acl (MHz) 36 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 220 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 10 Iq per channel (typ) (mA) 0.25 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 0.4 Operating temperature range (°C) -40 to 125 Iout (typ) (mA) 26 2nd harmonic (dBc) 128 3rd harmonic (dBc) 137 Frequency of harmonic distortion measurement (MHz) 0.01 GBW (typ) (MHz) 27 Input bias current (max) (pA) 250000 Features Shutdown CMRR (typ) (dB) 116 Rating Catalog
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • Ultra Low Power:
    • Voltage: 2.5 V to 5.5 V
    • Current: 250 µA
    • Power-Down Mode: 0.5 µA (typ)
  • Fully-Differential Architecture
  • Bandwidth: 36 MHz
  • Slew Rate: 200 V/µs
  • THD: –120 dBc at 1 kHz (1 VRMS, RL= 2 kΩ)
  • Input Voltage Noise: 10 nV/√Hz (f = 1 kHz)
  • High DC Accuracy:
    • VOS: ±100 µV
    • VOS Drift: ±3 µV/°C (–40°C to +125°C)
    • AOL: 114 dB
  • Rail-to-Rail Output (RRO)
  • Negative Rail Input (NRI)
  • Output Common-Mode Control
  • Ultra Low Power:
    • Voltage: 2.5 V to 5.5 V
    • Current: 250 µA
    • Power-Down Mode: 0.5 µA (typ)
  • Fully-Differential Architecture
  • Bandwidth: 36 MHz
  • Slew Rate: 200 V/µs
  • THD: –120 dBc at 1 kHz (1 VRMS, RL= 2 kΩ)
  • Input Voltage Noise: 10 nV/√Hz (f = 1 kHz)
  • High DC Accuracy:
    • VOS: ±100 µV
    • VOS Drift: ±3 µV/°C (–40°C to +125°C)
    • AOL: 114 dB
  • Rail-to-Rail Output (RRO)
  • Negative Rail Input (NRI)
  • Output Common-Mode Control

The THS4532 is a low-power, fully-differential amplifier with input common-mode range below the negative rail and rail-to-rail output. The device is designed for low-power data acquisition systems and high density applications where power consumption and dissipation is critical.

The device features accurate output common-mode control that allows for dc coupling when driving analog-to-digital converters (ADCs). This control, coupled with the input common-mode range below the negative rail and rail-to-rail output, allows for easy interface from single-ended ground-referenced signal sources to successive-approximation registers (SARs), and delta-sigma (ΔΣ) ADCs using only single-supply 2.5-V to 5-V power. The THS4532 is also a valuable tool for general-purpose, low-power differential signal conditioning applications.

The device is characterized for operation over the extended industrial temperature range from –40°C to 125°C. The following package options are available:

The THS4532 is a low-power, fully-differential amplifier with input common-mode range below the negative rail and rail-to-rail output. The device is designed for low-power data acquisition systems and high density applications where power consumption and dissipation is critical.

The device features accurate output common-mode control that allows for dc coupling when driving analog-to-digital converters (ADCs). This control, coupled with the input common-mode range below the negative rail and rail-to-rail output, allows for easy interface from single-ended ground-referenced signal sources to successive-approximation registers (SARs), and delta-sigma (ΔΣ) ADCs using only single-supply 2.5-V to 5-V power. The THS4532 is also a valuable tool for general-purpose, low-power differential signal conditioning applications.

The device is characterized for operation over the extended industrial temperature range from –40°C to 125°C. The following package options are available:
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Technical documentation

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* Data sheet THS4532 Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier datasheet (Rev. A) PDF | HTML Jul 31, 2015
Application brief Why Use an FDA to Drive an ADC? PDF | HTML Jan 8, 2026
Application brief Active Filter Design for Differential ADCs (Rev. A) PDF | HTML Oct 8, 2025
Circuit design Single-ended input to differential output circuit using a fully-differential amp (Rev. A) PDF | HTML Sep 25, 2024
E-book Engineer's Guide to High-Speed Amplifiers PDF | HTML Oct 18, 2023
Application note Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs Jun 14, 2018
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Application note Fully-Differential Amplifiers (Rev. E) Sep 19, 2016
Analog design Journal Using single-supply fully diff. amps with neg. input voltages to drive ADCs Nov 15, 2010
Analog design Journal Using fully differential op amps as attenuators, Part 3 Oct 4, 2009
Analog design Journal Using fully differential op amps as attenuators, Part 2 Jul 14, 2009
Analog design Journal Using fully differential op amps as attenuators, Part 1 May 1, 2009
Analog design Journal Analysis of fully differential amplifiers Mar 11, 2005
Analog design Journal Designing for low distortion with high-speed op amps Mar 2, 2005
Application note Noise Analysis for High Speed Op Amps (Rev. A) Jan 17, 2005

Design & development

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Evaluation board

THS4532PWEVM — THS4532PWEVM Evaluation Module

The THS4532PWEVM is an evaluation module for the dual, THS4532 in the PW (16-lead TSSOP) package.

The THS4532PWEVM 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 (...)

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THS4532 PSpice Model

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THS4532 TINA-TI Reference Design

SLOM353.TSC (3947 KB) - TINA-TI reference design
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THS4532 TINA-TI Spice Model

SLOM354.ZIP (7 KB) - TINA-TI Spice model
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Calculation tool

SBOR022 — TI FDA Calculator

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TSSOP (PW) 16 Ultra Librarian
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