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LTC2063 1.3 μA Low Power Zero-Drift Operational Amplifiers

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LTC2063 1.3 μA Low Power Zero-Drift Operational Amplifiers

Analog Devices’ op amps for energy harvesting, gas detection, and temperature measurement applications

Linear Technology/Analog Devices' LTC2063 is a single low power, zero-drift, 20 kHz operational amplifier (op amp). This op amp enables high-resolution measurement at extremely low power levels. Typical supply current is 1.4 μA with a maximum of 2 μA. The available shutdown mode has been optimized to minimize power consumption in duty-cycled applications and features low charge loss during power-up, reducing total system power.

The LTC2063's self-calibrating circuitry results in very low input offset (5 μV max) and offset drift (0.02 μV/°C). The maximum input bias current is only 20 pA and does not exceed 100 pA over the full specified temperature range. The low input bias current of this op amp allows the use of high-value power-saving resistors in the feedback network. With its ultra-low quiescent current and outstanding precision, the LTC2063 can serve as a signal chain building block in portable, energy harvesting, and wireless sensor applications. This op amp is available in 6-lead SC70 and 5-lead TSOT-23 packages and is fully specified over the -40°C to +85°C and -40°C to +125°C temperature ranges. The LTC2063 is ideal for energy harvesting, gas detection, and temperature measurement applications.

Typical Applications

Features
  • Zero drift, rail-to-rail
  • Voltage supply: 1.7 V to 5.25 V
  • Supply current: 2 μA max.
  • Offset voltage: 5 μV max.
  • Offset voltage drift: 0.02 μV/°C max.
  • Integrated EMI filter (114 dB rejection at 1.8 GHz)
  • Shutdown current: 170 nA max.
  • Temperature operating range: -40°C to +85°C, -40°C to +125°C
  • Package/case: TSOT-23-5, SC-70-6
Applications
  • Energy harvesting applications
  • Gas detection
  • Temperature measurement
  • Signal conditioning in wireless mesh networks
  • Portable instrumentation systems
  • Low-power sensor conditioning
  • Medical instrumentation
  • Low power current sensing
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