Texas Instruments OPAx333/OPAx333-Q1 CMOS Operational Amplifiers

Texas Instruments OPAx333/OPAx333-Q1 CMOS Operational Amplifiers offer high-precision with a low quiescent current in a microSize package. The OPAx333/OPAx333-Q1 Amps have a proprietary auto-calibration technique that simultaneously allows very low offset voltage (10µV, maximum) and near-zero drift over time and temperature. Additionally, the device delivers high-impedance inputs with a common-mode range of 100mV beyond the rails and rail-to-rail output that swings within 50mV of the rails. These devices are optimized for low-voltage, single-supply operation with single or dual supplies as low as 1.8V (±0.9V) and up to 5.5V (±2.75V) as options. The OPAx333/OPAx333-Q1 (dual version) is available in the 8-pin VSON, SOIC, and VSSOP packages and specified for operation from –40°C to 125°C. The OPAx333-EP devices have gold bond wires, a temperature range of –55 to +105°C, and an SnPb lead finish. The Texas Instruments OPAx333-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • 10µV (maximum) low offset voltage 
  • 0.05µV/°C (maximum) zero drift 
  • 1.1µVPP 0.01Hz to 10Hz noise
  • 17µA quiescent current 
  • Single-supply operation
  • 1.8V to 5.5V supply voltage 
  • Rail-to-rail input/output
  • SC70 and SOT23 microSize packages 

Applications

  • Transducers
  • Temperature measurements
  • Electronic scales
  • Medical instrumentation
  • Battery-powered instruments
  • Handheld test equipment

Block Diagram

Block Diagram - Texas Instruments OPAx333/OPAx333-Q1 CMOS Operational Amplifiers
Publicēts: 2018-05-16 | Atjaunināts: 2025-02-05