THS4532

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

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Product details

Parameters

Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.5 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 BW @ Acl (MHz) 36 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 220 Architecture Fully Differential ADC Driver, Bipolar Vn at flatband (Typ) (nV/rtHz) 10 Iq per channel (Typ) (mA) 0.25 Rail-to-rail In to V-, Out Vos (offset voltage @ 25 C) (Max) (mV) 0.4 Operating temperature range (C) -40 to 125 Output current (Typ) (mA) 26 2nd harmonic (dBc) 128 3rd harmonic (dBc) 137 @ MHz 0.01 GBW (Typ) (MHz) 27 Input bias current (Max) (pA) 250000 Features Shutdown CMRR (Typ) (dB) 116 open-in-new Find other Fully differential amplifiers

Package | Pins | Size

TSSOP (PW) 16 22 mm² 5 x 4.4 open-in-new Find other Fully differential amplifiers

Features

  • 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
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Description

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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Type Title Date
* Data sheet THS4532 Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier datasheet (Rev. A) Jul. 31, 2015
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical article How to minimize filter loss when you drive an ADC Oct. 20, 2016
Application note Fully-Differential Amplifiers (Rev. E) Sep. 19, 2016
Technical article Go differential to differentiate your precision design Aug. 11, 2016
Technical article How to use a fully differential amplifier as a level shifter Jul. 13, 2016
Technical article What you need to know about internal ESD protection on integrated circuits Dec. 02, 2015
User guide THS4532 EVM Jan. 17, 2013
Application note Using fully differential op amps as attenuators, Part 3 Oct. 04, 2009
Application note Using fully differential op amps as attenuators, Part 2 Jul. 14, 2009
Application note Using fully differential op amps as attenuators, Part 1 May 01, 2009
Application note Analysis of fully differential amplifiers Mar. 11, 2005
Application note Designing for low distortion with high-speed op amps Mar. 02, 2005
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
document-generic User guide
149
Description

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 (...)

Features
  • Configured for split supply operation and easily modified for single supply
  • Default single-ended input configuration can easily be reconfigured for differential input
  • Default single ended output configuration can easily be reconfigured for differential output
  • Independent disable control line for each (...)

Design tools & simulation

SIMULATION MODEL Download
SLOM353.TSC (3947 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLOM354.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLOM355.ZIP (30 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
BILL OF MATERIALS (BOM) Download
SLOR111.ZIP (388 KB)

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 16 View options

Ordering & quality

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  • Ongoing reliability monitoring

Support & training

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