OPA365 and OPA2365 Single-Supply Operational Ampli

OPA365 and OPA2365 Single-Supply Operational Ampli

Texas Instruments' OPA365 and OPA2365 zero-crossover series, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input or output, low-noise (4.5 nV/√Hz), and high-speed operation (50 MHz gain bandwidth) make these devices ideal for driving sampling analog-to-digital converters (ADCs). Applications include audio, signal conditioning, and sensor amplification. The OPA365 family of op amps are also well-suited for cell phone power amplifier control loops.

Special features include an excellent common-mode rejection ratio (CMRR), no input stage crossover distortion, high input impedance, and rail-to-rail input and output swing. The input common-mode range includes both the negative and positive supplies. The output voltage swing is within 10 mV of the rails.

The OPA365 (single version) is available in the micro-size SOT23-5 (SOT-5) and SOIC-8 packages. The OPA2365 (dual version) is offered in the SOIC-8 package. All versions are specified for operation from -40°C to +125°C. Single and dual versions have identical specifications for maximum design flexibility.

Features
  • Gain bandwidth: 50 MHz
  • Zero-crossover distortion topology:
    • Excellent THD+N: 0.0004%
    • CMRR: 100 dB (min)
    • Rail-to-rail input and output
      • Input 100 mV beyond supply rail
  • Low noise: 4.5 nV/√Hz at 100 kHz
  • Slew rate: 25 V/µs
  • Fast settling: 0.3 µs to 0.01%
  • Precision:
    • Low offset: 100 µV
    • Low input bias current: 0.2 pA
  • 2.2 V to 5.5 V operation
Applications
  • Signal conditioning
  • Data acquisition
  • Process control
  • Active filters
  • Test equipment
  • Audio
  • Wideband amplifiers
Manufacturer