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Precision op amps (Vos<1mV)

OPA211-HT

ACTIVE

High Temperature 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier

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Data sheet

OPA211-HT

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.18 Offset drift (typ) (µV/°C) 0.35 Input bias current (max) (pA) 200000 GBW (typ) (MHz) 45 Features Shutdown Slew rate (typ) (V/µs) 27 Rail-to-rail Out Iq per channel (typ) (mA) 3.6 Vn at 1 kHz (typ) (nV√Hz) 1.1 CMRR (typ) (dB) 120 Rating High Temp Operating temperature range (°C) -55 to 210 Iout (typ) (A) 0.03 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 1.8 Input common mode headroom (to positive supply) (typ) (V) -1.4 Output swing headroom (to negative supply) (typ) (V) 0.2 Output swing headroom (to positive supply) (typ) (V) -0.2 THD + N at 1 kHz (typ) (%) 0.000015
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.18 Offset drift (typ) (µV/°C) 0.35 Input bias current (max) (pA) 200000 GBW (typ) (MHz) 45 Features Shutdown Slew rate (typ) (V/µs) 27 Rail-to-rail Out Iq per channel (typ) (mA) 3.6 Vn at 1 kHz (typ) (nV√Hz) 1.1 CMRR (typ) (dB) 120 Rating High Temp Operating temperature range (°C) -55 to 210 Iout (typ) (A) 0.03 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 1.8 Input common mode headroom (to positive supply) (typ) (V) -1.4 Output swing headroom (to negative supply) (typ) (V) 0.2 Output swing headroom (to positive supply) (typ) (V) -0.2 THD + N at 1 kHz (typ) (%) 0.000015
CFP (HKJ) 8 38.985 mm² (— mm × — mm) CFP (HKQ) 8 38.985 mm² (— mm × — mm) DIESALE (KGD) — See data sheet
  • Low Voltage Noise: 1.1 nV/√Hz at 1 kHz
  • Input Voltage Noise:
    80 nVPP (0.1 Hz to 10 Hz)
  • THD+N: –136dB (G = 1, f = 1 kHz)
  • Offset Voltage: 240 µV (max)
  • Offset Voltage Drift: 0.35 µV/°C (typ)
  • Low Supply Current: 6 mA/Ch (typ)
  • Unity-Gain Stable
  • Gain Bandwidth Product:
    80 MHz (G = 100)
    45 MHz (G = 1)
  • Slew Rate: 27 V/µs
  • 16-Bit Settling: 700 ns
  • Wide Supply Range:
    ±2.25 V to ±18 V, 4.5 V to 36 V
  • Rail-to-rail output
  • Output current: 30 mA
  • APPLICATIONS
    • Down-Hole Drilling
    • High Temperature Environments
  • APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extreme (–55°C/210°C)
      Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Texas Instruments high temperature products
      utilize highly optimized silicon (die)
      solutions with design and process enhancements
      to maximize performance over extended
      temperatures.

(1) Custom temperature ranges available
All other trademarks are the property of their respective owners
  • Low Voltage Noise: 1.1 nV/√Hz at 1 kHz
  • Input Voltage Noise:
    80 nVPP (0.1 Hz to 10 Hz)
  • THD+N: –136dB (G = 1, f = 1 kHz)
  • Offset Voltage: 240 µV (max)
  • Offset Voltage Drift: 0.35 µV/°C (typ)
  • Low Supply Current: 6 mA/Ch (typ)
  • Unity-Gain Stable
  • Gain Bandwidth Product:
    80 MHz (G = 100)
    45 MHz (G = 1)
  • Slew Rate: 27 V/µs
  • 16-Bit Settling: 700 ns
  • Wide Supply Range:
    ±2.25 V to ±18 V, 4.5 V to 36 V
  • Rail-to-rail output
  • Output current: 30 mA
  • APPLICATIONS
    • Down-Hole Drilling
    • High Temperature Environments
  • APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extreme (–55°C/210°C)
      Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Texas Instruments high temperature products
      utilize highly optimized silicon (die)
      solutions with design and process enhancements
      to maximize performance over extended
      temperatures.

(1) Custom temperature ranges available
All other trademarks are the property of their respective owners

The OPA211 series of precision operational amplifiers achieves very low 1.1 nV/√Hz noise density with a supply current of only 3.6 mA. This series also offers rail-to-rail output swing, which maximizes dynamic range.

The extremely low voltage and low current noise, high speed, and wide output swing of the OPA211 series make these devices an excellent choice as a loop filter amplifier in PLL applications.

In precision data acquisition applications, the OPA211 series of op amps provides 700-ns settling time to 16-bit accuracy throughout 10-V output swings. This ac performance, combined with only 240-µV of offset and 0.35-µV/°C of drift over temperature, makes the OPA211 ideal for driving high-precision 16-bit analog-to-digital converters (ADCs) or buffering the output of high-resolution digital-to-analog converters (DACs).

The OPA211 series is specified over a wide dual-power supply range of ±2.25 V to ±18 V, or for single-supply operation from 4.5 V to 36 V.

This series of op amps is specified from TA = –55°C to 210°C.

The OPA211 series of precision operational amplifiers achieves very low 1.1 nV/√Hz noise density with a supply current of only 3.6 mA. This series also offers rail-to-rail output swing, which maximizes dynamic range.

The extremely low voltage and low current noise, high speed, and wide output swing of the OPA211 series make these devices an excellent choice as a loop filter amplifier in PLL applications.

In precision data acquisition applications, the OPA211 series of op amps provides 700-ns settling time to 16-bit accuracy throughout 10-V output swings. This ac performance, combined with only 240-µV of offset and 0.35-µV/°C of drift over temperature, makes the OPA211 ideal for driving high-precision 16-bit analog-to-digital converters (ADCs) or buffering the output of high-resolution digital-to-analog converters (DACs).

The OPA211 series is specified over a wide dual-power supply range of ±2.25 V to ±18 V, or for single-supply operation from 4.5 V to 36 V.

This series of op amps is specified from TA = –55°C to 210°C.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet 1.1 nV/Hz Noise, Low Power, Precision Operational Amplifier datasheet (Rev. D) Oct 3, 2013
* Radiation & reliability report OPA211SHKQ Reliability Report Jul 18, 2012
* Radiation & reliability report OPA211SHKJ Reliability Report Jul 18, 2012
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

GUI for evaluation module (EVM)

SLAC498 — HEATEVM GUI Software

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Simulation model

OPAx211A PSpice Model (Rev. E)

SBOC250E.ZIP (30 KB) - PSpice model
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OPAx211A TINA-TI Reference Design (Rev. G)

SBOC247G (340 KB) - TINA-TI reference design
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OPAx211A TINA-TI Spice Model (Rev. F)

SBOM307F.ZIP (11 KB) - TINA-TI Spice model
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Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

Supported products & hardware
Calculation tool

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
Supported products & hardware
Reference design

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 (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
CFP (HKJ) 8 Ultra Librarian
CFP (HKQ) 8 Ultra Librarian
DIESALE (KGD) — Ultra Librarian
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