Analog Devices Inc. LTC2063 Zero-Drift Operational Amplifiers
Analog Devices LTC2063 Zero-Drift Operational Amplifiers are 20kHz zero-drift amplifiers designed to provide high-resolution measurements at extremely low-power levels. These micropower amplifiers typically consume only 1.3μA (2μA max) on a 1.8V supply. With its self-calibrating circuitry, the LTC2063 Amplifiers achieve a maximum 5μV at 25°C input offset voltage and 0.02μV/°C offset voltage drift from –40°C to 125°C. In addition, the op amps do not exceed a 100pA input bias current over the full specified temperature range. These high-precision input features enable the use of high-value power-saving resistors in the feedback network. This design maintains low-power consumption without compromising accuracy even when exposed to elevated temperatures. With its ultra-low quiescent current and outstanding precision, the LTC2063 can serve as a signal chain building block in energy harvesting, wireless sensor, and portable applications.
LTC2063's rail-to-rail inputs and outputs simplify single supply use and enhance the dynamic range. The integrated EMI filter offers 114dB electromagnetic interference rejection at 1.8GHz. Due to the low 1/f noise inherent to its zero-drift architecture, the LTC2063 is well-suited for amplifying and conditioning low-frequency sensor signals in high-temperature industrial and automotive systems.
Features
- 2μA maximum low supply current
- 5μV maximum offset voltage
- 0.02μV/°C maximum offset voltage drift
- Input bias current
- 3pA Typical
- 30pA maximum, –40°C to +85°C
- 100pA maximum, –40°C to +125°C
- Integrated EMI filter (114dB rejection at 1.8GHz)
- 170nA maximum shutdown current
- Rail-to-rail input and output
- 1.7V to 5.25V operating supply range
- Specified temperature ranges
- –40°C to +85°C
- –40°C to +125°C
Applications
- Signal conditioning in wireless mesh networks
- Portable instrumentation systems
- Low-power sensor conditioning
- Gas detection
- Temperature measurement
- Medical instrumentation
- Energy harvesting
- Low-power current sensing
Typical Application Diagram
Videos
Additional Resources
Related Products
Analog Devices Inc. LTC206x Operational Amplifiers
Single and dual low power, zero-drift amplifiers.
Additional Resources
Precision Ultralow Power High-Side Current Sense
Precision high-side measurement of microamp currents requires a small value sense resistor and a low offset voltage amplifier. The LTC2063 zero-drift amplifier has a maximum input offset voltage of just 5 μV and draws just 1.4 μA, making it a great choice for building a complete ultra low power, precision high-side current sense circuit.