OPA333 1.8V, 17µA, microPower, Precision, Zero-Drift CMOS Op Amp | TI.com

OPA333 (ACTIVE)

1.8V, 17µA, microPower, Precision, Zero-Drift CMOS Op Amp

 

Recommended alternative parts

To achieve faster, more accurate signal conditioning with a 10MHz, zero-drift (5µV max Vos, 0.005µV/°C drift), RRIO op amp, upgrade to OPA388

Description

The OPAx333 series of CMOS operational amplifiers use a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 µV, maximum) and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) can be used. These devices are optimized for low-voltage, single-supply operation.

The OPAx333 family offers excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.

The OPA333 (single version) is available in the 5-pin SOT-23, SOT, and 8-pin SOIC packages, while the OPA2333 (dual version) is available in the 8-pin VSON, SOIC, and VSSOP packages. All versions are specified for operation from –40°C to 125°C.

Features

  • Low Offset Voltage: 10 µV (Maximum)
  • Zero Drift: 0.05 µV/°C (Maximum)
  • 0.01-Hz to 10-Hz Noise: 1.1 µVPP
  • Quiescent Current: 17 µA
  • Single-Supply Operation
  • Supply Voltage: 1.8 V to 5.5V
  • Rail-to-Rail Input/Output
  • microSize Packages: SC70 and SOT23

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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 @ 25C) (Max) (mV)
Offset Drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Vn at 1kHz (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
OPA333 OPA388
1     1    
1.8     2.5    
5.5     5.5    
0.35     10    
0.16     5    
In
Out    
In
Out    
0.01     0.005    
0.02     0.005    
0.017     1.7    
55     7    
130     138    
Catalog     Catalog    
-40 to 125     -40 to 125    
SC70 | 5
SOIC | 8
SOT-23 | 5    
SOIC | 8
SOT-23 | 5
VSSOP | 8    
5SC70: 4 mm2: 2.1 x 2 (SC70 | 5)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
200     350    
5     60    
EMI Hardened
Small Size
Zero Drift    
EMI Hardened
High Cload Drive
Zero Crossover
Zero Drift    
CMOS     CMOS    

Design tool

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