THS4524

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Very low power quad channel rail-to-rail output fully differential amplifier

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Product details

Parameters

Number of channels (#) 4 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.5 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 BW @ Acl (MHz) 145 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 490 Vn at flatband (Typ) (nV/rtHz) 4.6 Iq per channel (Typ) (mA) 1.14 Rail-to-rail In to V-, Out Vos (offset voltage @ 25 C) (Max) (mV) 2 Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 55 2nd harmonic (dBc) 133 3rd harmonic (dBc) 141 GBW (Typ) (MHz) 95 Input bias current (Max) (pA) 900000 @ MHz 0.001 CMRR (Typ) (dB) 102 open-in-new Find other Fully differential amplifiers

Package | Pins | Size

TSSOP (DBT) 38 62 mm² 9.7 x 6.4 open-in-new Find other Fully differential amplifiers

Features

  • Fully Differential Architecture
  • Bandwidth: 145 MHz (AV = 1 V/V)
  • Slew Rate: 490 V/µs
  • HD2: –133 dBc at 10 kHz (1 VRMS,
    RL = 1 kΩ)
  • HD3: –141 dBc at 10 kHz (1 VRMS,
    RL = 1 kΩ)
  • Input Voltage Noise: 4.6 nV/√Hz
    (f = 100 kHz)
  • THD+N: –112dBc (0.00025%) at
    1 kHz (22-kHz BW, G = 1, 5 VPP)
  • Open-Loop Gain: 119 dB (DC)
  • NRI–Negative Rail Input
  • RRO–Rail-to-Rail Output
  • Output Common-Mode Control
    (with Low Offset)
  • Power Supply:
    • Voltage: +2.5 V (±1.25 V) to
      +5.5 V (±2.75 V)
    • Current: 1.14 mA/ch
  • Power-Down Capability: 20 µA (typical)
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Description

The THS4521, THS4522, and THS4524 family of devices are very low-power, fully differential amplifiers with rail-to-rail output and an input common-mode range that includes the negative rail. These amplifiers are designed for low-power data acquisition systems and high-density applications where power dissipation is a critical parameter, and provide exceptional performance in audio applications.

The family includes single FDA (THS4521), dual FDA (THS4522), and quad FDA (THS4524) versions.

These fully differential amplifiers feature accurate output common-mode control that allows for dc-coupling when driving analog-to-digital converters (ADCs). This control, coupled with an input common-mode range below the negative rail as well as rail-to-rail output, allows for easy interfacing between single-ended, ground-referenced signal sources. Additionally, these devices are ideally suited for driving both successive-approximation register (SAR) and delta-sigma (ΔΣ) ADCs using only a single +2.5V to +5V and ground power supply.

The THS4521, THS4522, and THS4524 family of fully differential amplifiers 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
* Datasheet THS452x Very Low Power, Negative Rail Input, Rail-To-Rail Output, Fully Differential Amplifier datasheet (Rev. H) Jun. 18, 2015
More literature The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Selection guides TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
Technical articles How to minimize filter loss when you drive an ADC Oct. 20, 2016
Application notes Fully-Differential Amplifiers (Rev. E) Sep. 19, 2016
Technical articles Go differential to differentiate your precision design Aug. 11, 2016
Technical articles How to use a fully differential amplifier as a level shifter Jul. 13, 2016
Technical articles What you need to know about internal ESD protection on integrated circuits Dec. 02, 2015
Selection guides Power Management for Precision Analog Jun. 08, 2011
Application notes Using fully differential op amps as attenuators, Part 3 Oct. 04, 2009
User guides THS4521/45222/4524EVM User's Guide Jul. 16, 2009
Application notes Using fully differential op amps as attenuators, Part 2 Jul. 14, 2009
Application notes Analysis of fully differential amplifiers Mar. 11, 2005
Application notes Designing for low distortion with high-speed op amps Mar. 02, 2005
Application notes 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 BOARDS Download
document-generic User guide
$149.00
Description

The THS4524EVM is an evaluation module for the quad, THS4524 in the DBT (38-lead TSSOP) package.

The THS4524EVM 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 use (...)

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 MODELS Download
SBOMA76B.ZIP (22 KB) - PSpice Model
SIMULATION MODELS Download
SBOMA77A.TSC (66 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOMA78A.ZIP (16 KB) - TINA-TI Spice Model
SIMULATION TOOLS 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

CAD/CAE symbols

Package Pins Download
TSSOP (DBT) 38 View options

Ordering & quality

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