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2.5V Reference voltage

2 years ago 1494
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Description

1、Module description: The LM236-2.5, LM336-2.5, and LM336B-2.5 integrated circuits are precision 2.5-V shunt regulator diodes. These reference circuits operate as low-temperature-coefficient 2.5-V Zener diodes with a 0.2-Ω dynamic impedance. A third terminal provided on the circuit allows the reference voltage and temperature coefficient to be trimmed easily. The series is useful as precision 2.5-V low-voltage references (VZ) for digital voltmeters, power supplies, or operational-amplifier circuitry. The 2.5-V voltage reference makes it convenient to obtain a stable reference from 5-V logic supplies. Devices in this series operate as shunt regulators, and can be used as either positive or negative voltage references. 2、Function Description: Precision 2.5V reference voltage source is used as reference source. 3、Description of each function module:

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4、Components and PCB diagram before welding:

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5、Physical map after welding:

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Documents

2.5V基准电压

2.5V基准电压

BOM

ID Value Qty. Package Components Manufacturer Part
1 LM336BLP-2.5 1 TO-92 U1
2 2.49k 1 3-0603 R1
3 10k 1 RW R2
4 1N914 2 DO-35 D1,D2
5 SIP2 2 HDR1X2 P1,P2
6 1k 1 3-0603 R3
7 LED 1 L-0603 D3

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