OPA211-HT High Temperature 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier | TI.com

OPA211-HT (ACTIVE)

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

 

Description

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.

Features

  • 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
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Parametrics Compare all products in Precision op amps (Vos<1mV)

 
Number of channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-rail
Vos (offset voltage @ 25 C) (Max) (mV)
Offset drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Vn at 1 kHz (Typ) (nV/rtHz)
CMRR (Typ) (dB)
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
Input bias current (Max) (pA)
Output current (Typ) (mA)
Features
Architecture
OPA211-HT
1    
4.5    
36    
45    
27    
Out    
0.26    
0.15    
3.6    
1.1    
120    
High Temp    
-55 to 210    
CFP | 8    
See datasheet (CFP)    
125000    
30    
Shutdown    
Bipolar    

Design tool

WEBENCH® Designer OPA211-HT

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 4.5 to 36.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -55.0 °C
Maximum Temperature = 210.0 °C