The LT6656 is a tiny precision voltage reference that draws less than 1μA 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 1μF 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, (2mm × 2mm) DFN, and 8-lead LS8 Packages. The LS8 is a 5mm × 5mm surface mount hermetic package that provides outstanding stability.
Feature
- Ultralow Supply Current: 850nA
- Low Drift
- Grade: 10 ppm/°C Max
- Grade: 20 ppm/°C Max
- High Accuracy
- Grade: 0.05% Max
- Grade: 0.1% Max
- Long-Term Drift: 15ppm/√kHr (LS8 Package)
- No Humidity Sensitivity (LS8 Package)
- High Output Drive Current: 5mA Min
- Low Dropout Voltage: 10mV Max
- Fully Specified from –40°C to 85°C
- Operational from –55°C to 125°C
- Wide Supply Range to 18V
- Reverse Input/Output Protection
- Available Output Voltage Options: 1.25V, 2.048V, 2.5V, 3V, 3.3V, 4.096V and 5V
- Available in Low Profile (1mm) ThinSOT™, (2mm × 2mm) DFN and High Stability Hermetic (5mm × 5mm) LS8 Packages
Applications
- Precision A/D and D/A Converters
- Portable Gas Monitors
- Battery- or Solar-Powered Systems
- Precision Regulators
- Low Voltage Signal Processing
- Micropower Remote Sensing
(Picture: Pinout)
