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Product Info
- General Description
- Features
- Junction operating temperature from -55°C to 225°C
- Single supply operation: 5V ±10%
- Low offset: 50µV typ, 100 µV max
- Low noise: 5 µVpp typ
- High CMRR: 85 dB min
- Product gain bandwidth: 2.8 MHz typ
- Slew rate: 2.7 V/µs typ
- Rail-2-rail input and output
- Low bias input current: <10 pA typ
- Quiescent current: 1.2 mA typ
- Automatic offset compensation
- Stand-by current: 7 µA max
- Latch-up free
- Package: TDFP16
- 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.)
CHT-OPAL is an ultra high-precision, dual operational amplifier designed for applications that require very low offset and very low noise. Both amplifiers can be configured as a differential amplifier or as an instrumentation amplifier (combined with a third, external amplifier cell and with external resistors). 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 encompass 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. The user can decide not to use this internal clock and rather provide it from external circuitry (e.g. for synchronization purposes).
CHT-OPAL also features a Stand-by mode that disables the two Op Amps and place the circuit in a low power consumption mode when the function is not needed.