产品概述

描述

The EVAL-RHF1009A product evaluation board of STMicroelectronics is designed to help characterize the RHF1009A device. This rad-hard device is a low-power adjustable 2.5 V to 5.5 V, ± 0.15 % fixed shunt, voltage reference with a typical average temperature co-efficient of 10 ppm/ºC and is housed in a Flat-10 ceramic package. This data brief provides a brief description of the EVAL-RHF1009A product evaluation board and presents the EVAL-RHF1009A schematic together with the top and bottom layers of the board.

所有功能
Designed for Flat-10 package

Used to perform on-board characterization of the RHF1009A prior to integration of STMicroelectronics' products

Resistor and capacitor footprints implemented for 0805 series

Two decoupling capacitors implemented on power supply pin and output pin to benefit from maximum performance of ST products

R3 (cathode) resistor set to 6.8 kΩ, with a power supply voltage of 3.3 V this gives a cathode current of about 110 μA

If RHF1009A device is soldered onto the EVAL-RHF1009A, Cn1 is fitted onto the PCB and shorted to get an output voltage of 2.5 V. If a different output voltage than 2.5 V to 5.5 V is needed, remove the jumper located on Cn1 and place the adequate value of R1, R2, and R3
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