Analog Devices Inc. LTC2068x Operational Amplifiers
Analog Devices Inc. LTC2068x Operational Amplifiers are designed for high-resolution measurements at low power levels. These amplifiers operate at 1.7V to 5.25V operating voltage range and 10µA maximum supply current. The LTC2068x amplifiers' self-calibrating circuitry provides 5µV low input offset (maximum) and 0.02µV/°C offset drift. The shutdown mode is optimized to minimize power consumption in duty-cycled applications and feature low charge loss during power-up that reduces total system power. These amplifiers provide low input bias current that allows for the use of high-value power-saving resistors in the feedback network. The LTC2068x amplifiers are available in 14-lead TSSOP and 16-lead 3mm × 3mm QFN packages.
Features
- Low-Charge power-up for duty-cycled applications
- Rail-to-Rail input and output
- 10μA low supply current
- 5μV offset voltage (maximum)
- 0.02μV/°C offset voltage drift (maximum)
- 170nA shutdown current per amplifier
- 1.7V to 5.25V operating supply range
- 140dB AVOL
- Temperature ranges:
- -40°C to 85°C
- -40°C to 125°C
Applications
- Gas detection
- Signal conditioning in wireless mesh networks
- Portable instrumentation systems
- Low-power sensor conditioning
- Temperature measurement
- Medical instrumentation
- Energy harvesting applications
- Low power current sensing
Block Diagrams
Typical Application Circuit
Related Product
Analog Devices Inc. LTC2068-TQFN Evaluation Board
Evaluates the LTC2068 zero-drift operational amplifier.
Published: 2020-07-30
| Updated: 2022-03-11