The OPAx365 zero-crossover family, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input/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 SOT23-5 package. The OPA2365 (dual version) is available in the SO-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.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level H2
  • Device CDM ESD Classification Level C3B
• 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 100kHz
• Slew Rate: 25V/µs
• Fast Settling: 0.3µs to 0.01%
• Precision
  • Low Offset: 100 µV
  • Low Input Bias Current: 0.2 pA
• 2.2-V to 5.5-V Operation