The OPAx365 zerø-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.
● Gain Bandwidth: 50 MHz
● Zerø-Crossover Distortion Topology:
● Excellent THD+N: 0.0004%
● CMRR: 100 dB (Minimum)
● 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
