Analog Devices Inc. AD8675 Rail-to-Rail Output Op Amps
Analog Devices Inc. AD8675 Rail-to-Rail Output Op Amps are a precision operational amplifier featuring ultralow offset, drift, and voltage noise combined with very low input bias currents over the full operating temperature range. The wide bandwidth op-amp provides rail-to-rail output swings and very low noise at a fully specified ±5V to ±15V operation.The ADI AD8675 Rail-to-Rail Output Op Amps rail-to-rail output compares to that of the OP184. Still, it offers a wide bandwidth combined with precision and low power consumption, similar to the industry-standard OP07 amplifier. The AD8675 is unlike other low noise rail-to-rail op-amps, utilizing a very low input bias current and low input current noise.
The ADI AD8675 Dual Rail-to-Rail Output Op Amps delivers a typical offset voltage of only 10μV, offset drift of 0.2μV/°C, and noise of only 0.10μV p-p (0.1Hz to 10Hz). These specifications are ideal for applications that do not tolerate significant error sources. Additionally, precision instrumentation, PLL and other precision filter circuits, position and pressure sensors, medical instrumentation, and strain gage amplifiers benefit significantly from the very low noise, low input bias current, and wide bandwidth. For applications with even lower offset tolerances, the proprietary nulling capability allows a combination of both device and system offset errors up to 3.5mV (referred to as the input) to be compensated externally.
The AD8675 is specified for the extended industrial temperature range (−40°C to +125°C) and is available in the tiny 8-lead MSOP, or 8-lead, narrow SOIC, RoHS compliant package. The smaller packages and low power consumption afforded by the AD8675 allow maximum channel density or minimum board size for space-critical equipment.
Features
- 2.8nV/√Hz Very low voltage noise
- Rail-to-rail output swing
- 2nA Maximum low input bias current
- 75μV Maximum very low offset voltage
- 0.6μV/°C Maximum low input offset drift
- 120dB Very high gain
- 10MHz Typical Wide bandwidth
- ±5V to ±18V Operation
Applications
- Precision instrumentation
- PLL filters
- Laser diode control loops
- Strain gage amplifiers
- Medical instrumentation
- Thermocouple amplifiers
PIN CONFIGURATIONS
Test Circuit
