LT6656 - 1 - Linear Technology - #1

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LT6656 6656fa Output Voltage Temperature Drift LT6656-2.5 TEMPERATURE (°C) –40 2.498 2.499 VOUT (V) 2.500 2.501 2.502 2.503 –20 0 20 40 6652 TA01b 60 80 38 TYPICAL UNITS Basic Connection Typical Application Description 1ìA Precision Series Voltage Reference The LT®6656 is a small precision voltage reference that draws less than 1ìA of supply current and can operate with a supply voltage within 10mV of the output voltage. The LT6656 offers an initial accuracy of 0.05% and temperature drift of 10ppm/°C. The combined low power and precision characteristics are ideal for portable and battery powered instrumentation. The LT6656 can supply up to 5mA of output drive with 65ppm/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 18V and withstand the reversal of the input connections. The LT6656 output is stable with 1ìF or larger output capacitance and operates with a wide range of output capacitor ESR. This reference is fully specified for operation from –40°C to 85°C, and is functional over the extreme temperature range of –55°C to 125°C. Low hysteresis and a consistent temperature drift are obtained through advanced design, processing and packaging techniques. The LT6656 is offered in the 6-lead SOT-23 package. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Features Applications n Low Drift A Grade: 10 ppm/°C Max B Grade: 20 ppm/°C Max n High Accuracy A Grade: 0.05% Max B Grade: 0.1% Max n Ultralow Supply Current: 850nA n High Output Drive Current: 5mA Min n Low Dropout Voltage: 10mV Max n Fully Specified from –40°C to 85°C n Operational from –55°C to 125°C n Wide Supply Range to 18V n Reverse Input/Output Protection n Available Output Voltage Options: 1.25V, 2.048V, 2.5V, 3V, 3.3V, 4.096V and 5V n Thermal Hysteresis: 25ppm n Low Profile (1mm) ThinSOT™ Package n Precision A/D and D/A Converters n Portable Gas Monitors n Battery- or Solar-Powered Systems n Precision Regulators n Low Voltage Signal Processing n Micropower Remote Sensing 2.51V  VIN  18V 0.1ìF 1ìF VOUT 2.5V 6656 TA01a LT6656-2.5 VIN VOUT GND