CHT-OPAL
DUAL PRECISION OPERATIONAL AMPLIFIER (225°C)
CHT-OPAL is an ultra high-precision, dual operational amplifier designed for applications that require very low offset and very low noise. Key features include single 5V nominal power supply and rail-to-rail inputs and outputs. Best-in-class precision on the full temperature range -55°C to +225°C encompasses low input offset (internally compensated) and low noise. The internal circuitry uses a clock that is internally generated. There is a spread-spectrum mode for this clock.
Key features
- Temperature range: -55°C to 225°C
- Single supply operation: 5V ±10%
- Rail-2-rail input and output
- Quiescent current: 1.2 mA typ.
- Low bias input current:
- Input offset: 50µV typ, 100 µV max
- Low noise: 5 µVpp typ
- High CMRR: 85 dB min
- Slew rate: 2.7 V/µs typ
- Offset compensation modes:
- Internal clock w/ or w/o spread spectrum
- External clock 12kHz to 500 kHz
- Stand-by mode with 7µA max current
- Package: TDFP16 (5x5.5mm)
Applications
- High temperature instrumentation & data acquisition
- Signal conditioning & instrumentation amplifiers for temperature, pressure, motion, speed and position sensors
- Strain gage amplifiers
- Photodiode and PMT amplifiers
- Charge amplifiers
- Current sensing
- Transmitters (4-20mA, etc.)