Linear Technology's LT6656 is a small precision voltage reference that draws less than 1 μA of supply current and can operate with a supply voltage within 10 mV of the output voltage. The LT6656 offers an initial accuracy of 0.05% and temperature drift of 10 ppm/°C. The combined low power and precision characteristics are ideal for portable and battery powered instrumentation.

The LT6656 can supply up to 5 mA of output drive with 65 ppm/mA of load regulation, allowing it to be used as the supply voltage and the reference input to a low power ADC. The LT6656 can accept a supply voltage up to 18 V and withstand the reversal of the input connections.

The LT6656 output is stable with 1 μF or larger output capacitance and operates with a wide range of output capacitor ESR, ensuring that the LT6656 is simple to use.

• Ultra low supply current: 850 nA
• High output drive current: 5 mA (min.)
• Low dropout voltage: 10 mV (max.)
• Fully specified from -40°C to 85°C
• Operational from -55°C to 125°C
• Wide supply range to 18 V
• Reverse input/output protection
• Thermal hysteresis: 25 ppm