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The LTC6655BHMS8-1.25#PBF is a precision bandgap voltage reference from Analog Devices, housed in an 8-lead plastic MSOP package. It provides a fixed output voltage of 1.25V with an initial accuracy of ±0.025% and a maximum temperature coefficient of 2ppm/°C. The device operates within a supply voltage range of 3V to 13.2V, drawing a typical supply current of 7.5mA. It features low noise performance of 0.25ppm peak-to-peak (0.1Hz to 10Hz) and supports both sourcing and sinking currents up to ±5mA.
Verify the specific ordering suffix #PBF indicates tube packaging rather than tape and reel. Confirm the B grade designation matches the required ±0.025% accuracy specification. Ensure the MSOP-8 package footprint aligns with the target PCB layout constraints before finalizing procurement orders.
Select this component when strict calibration elimination is required due to its high initial accuracy. The low dropout capability allows operation with minimal headroom above the output voltage. Consider the thermal hysteresis specifications if the application involves significant temperature cycling during operation.
This part belongs to the LTC6655 family of precision references designed for demanding automotive and industrial environments. The family includes variants with different output voltages and packages, such as the hermetic LS8. The BHMS8 variant specifically denotes the B grade accuracy level within the standard plastic MSOP form factor.
LTC6655CHMS8-1.25#PBF offers the same package and function with C grade accuracy.