HXY MOSFET OPA335AIDR-HXY

The OPA335AIDR series amplifiers use a patented fast-settling chopper stabilization technique to provide input offset voltage correction, achieving ultra-low offset and drift. This approach continuously measures and compensates for input offset, eliminating drift over time and temperature as well as 1/f noise. This design breakthrough delivers a 1.5 MHz gain-bandwidth product and a high slew rate of 1.2 V/μs while consuming only 125 μA of supply current. These devices are unity-gain stable and offer excellent power supply rejection ratio and common-mode rejection ratio. The series is ideal for applications requiring precision amplification of weak signals that cannot tolerate error sources yet demand high bandwidth and fast transient response. Rail-to-rail input and output swing makes both high-side and low-side sensing straightforward. The series operates from a single supply as low as 1.8 V, making it suitable for two-cell battery applications. These op amps feature enhanced EMI immunity to minimize interference from external sources and offer high ESD protection (5-kV HBM). All versions are specified for operation over the extended industrial temperature range of -40°C to +125°C.

• High DC accuracy: max offset voltage ±8 μV, max drift ±40 nV/°C; min open-loop gain 112 dB; min PSRR 112 dB; min CMRR 112 dB; typical noise voltage 0.45 μVₚ₋ₚ
• 1.5 MHz bandwidth and 1.2 V/μs slew rate
• Settling time to 0.1% accuracy of 1.2 μs for a 1 V step input
• Overload recovery to 0.1% accuracy in 35 μs
• Micropower, 125 μA per amplifier, wide supply voltage range 1.8 V to 5.5 V
• Operating temperature range: -40°C ~ +125°C

• Precision current sensing
• Resistance temperature detectors
• Temperature, position, and pressure sensors
• Medical equipment
• Electronic scales
• Strain gauge amplifiers
• Thermocouple amplifiers
• ADC drivers