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THS4521-HT

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High Temperature, Very Low Power, Negative Rail Input, Rail-to-Rail Output, Differential Amp

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Data sheet

THS4521-HT

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 BW at Acl (MHz) 104 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 377.5 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 4.6 Iq per channel (typ) (mA) 1.1 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 5 Operating temperature range (°C) -55 to 210 Iout (typ) (mA) 35 2nd harmonic (dBc) 96 3rd harmonic (dBc) 91.5 Frequency of harmonic distortion measurement (MHz) 0.001 GBW (typ) (MHz) 81 Input bias current (max) (pA) 3300000 Features Shutdown CMRR (typ) (dB) 105 Rating High Temp
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 BW at Acl (MHz) 104 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 377.5 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 4.6 Iq per channel (typ) (mA) 1.1 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 5 Operating temperature range (°C) -55 to 210 Iout (typ) (mA) 35 2nd harmonic (dBc) 96 3rd harmonic (dBc) 91.5 Frequency of harmonic distortion measurement (MHz) 0.001 GBW (typ) (MHz) 81 Input bias current (max) (pA) 3300000 Features Shutdown CMRR (typ) (dB) 105 Rating High Temp
CFP (HKJ) 8 38.985 mm² (— mm × — mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) DIESALE (KGD) — See data sheet CFP (HKQ) 8 38.985 mm² (— mm × — mm)
  • Fully Differential Architecture
  • Bandwidth: 40.7 MHz (210°C)
  • Slew Rate: 353.5 V/µs (210°C)
  • HD2: –96 dBc at 1 kHz
    (1 VRMS, RL = 1 kΩ) (210°C)
  • HD3: –91.5 dBc at 1 kHz
    (1 VRMS, RL = 1 kΩ) (210°C)
  • Input Voltage Noise: 19.95 nV/√Hz (f = 100 kHz)
  • Open-Loop Gain: 90 dB (typ) (210°C)
  • NRI—Negative Rail Input
  • RRO—Rail-to-Rail Output
  • Output Common-Mode Control (with Low Offset and Drift)
  • Power Supply:
    • Voltage: 2.5 V (±1.25 V) to 3.3 V (±1.65 V)
    • Current: 1.4 mA/ch (3.3 V)
  • Power-Down Capability: 10 µA (typ) (210°C)
  • Fully Differential Architecture
  • Bandwidth: 40.7 MHz (210°C)
  • Slew Rate: 353.5 V/µs (210°C)
  • HD2: –96 dBc at 1 kHz
    (1 VRMS, RL = 1 kΩ) (210°C)
  • HD3: –91.5 dBc at 1 kHz
    (1 VRMS, RL = 1 kΩ) (210°C)
  • Input Voltage Noise: 19.95 nV/√Hz (f = 100 kHz)
  • Open-Loop Gain: 90 dB (typ) (210°C)
  • NRI—Negative Rail Input
  • RRO—Rail-to-Rail Output
  • Output Common-Mode Control (with Low Offset and Drift)
  • Power Supply:
    • Voltage: 2.5 V (±1.25 V) to 3.3 V (±1.65 V)
    • Current: 1.4 mA/ch (3.3 V)
  • Power-Down Capability: 10 µA (typ) (210°C)

The THS4521 is a very low-power, fully differential op amp with rail-to-rail output and an input common-mode range that includes the negative rail. This amplifier is designed for low-power data acquisition systems and high-density applications where power dissipation is a critical parameter, and provides exceptional performance in audio applications.

The THS4521 features 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, this device is ideally suited for driving both successive-approximation register (SAR) and delta-sigma (ΔΣ) ADCs using only a single 2.5-V to 3.3-V and ground power supply.

The THS4521 is characterized for operation from –55°C to 210°C.

The THS4521 is a very low-power, fully differential op amp with rail-to-rail output and an input common-mode range that includes the negative rail. This amplifier is designed for low-power data acquisition systems and high-density applications where power dissipation is a critical parameter, and provides exceptional performance in audio applications.

The THS4521 features 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, this device is ideally suited for driving both successive-approximation register (SAR) and delta-sigma (ΔΣ) ADCs using only a single 2.5-V to 3.3-V and ground power supply.

The THS4521 is characterized for operation from –55°C to 210°C.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet Very-Low Power, Negative Rail Input, Rail-to-Rail Output, Differential Amp datasheet (Rev. D) May 30, 2012
* Radiation & reliability report THS4521HKJ_HKQ Reliability Report Sep 20, 2012
* Radiation & reliability report THS4521HD Reliability Report (Rev. A) Aug 17, 2012
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017

Design & development

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Evaluation board

THS4521EVM — THS4521 evaluation module

The THS4521EVM is an evaluation module for the single, THS4521 in the D (8-lead SOIC) package.

The THS4521EVM 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 of (...)

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SLAC498 — HEATEVM GUI Software

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TIDA-00002 — Harsh Environment Acquisition Terminal (HEAT) EVM Platform for High Temperature Applications

The HEATEVM is a MCM intended to provide a high temperature platform for signal conditioning and processor evaluation. The module consists of a complete chain of components designed to withstand extreme operating temperatures up to 200 °C. The PCB is made with polymide material also suited for (...)

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CFP (HKJ) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
DIESALE (KGD) — Ultra Librarian
CFP (HKQ) 8 Ultra Librarian
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