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CIRCUIT060046
High-side V-I with bipolar junction transistor (BJT) circuit
CIRCUIT060046
Overview
This low-side voltage-to-current (V-I) converter delivers a well-regulated current to a load which can be connected to a voltage greater than the op amp supply voltage. The circuit accepts an input voltage from 0 V to 10 V and converts it to a current from 0 A and 1 A. The current is accurately regulated by feeding back the voltage drop across a low-side current-sense resistor (R5) to the op amp.
Features
- Input:
- Vi = 0 V to 10 V
- Iimax = 200 µA
- Output: Io = 0 A to 1 A
- Supply:
- Vcc = 15 V
- Vee = 0 V
- Vload = 36 V
Get started
- Read the circuit design
- Download the model
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Circuit design | Voltage-to-current (V-I) converter circuit with BJT | PDF | HTML | 14 May 2021 |
| Application note | AN-31 Amplifier Circuit Collection (Rev. D) | 21 Oct 2020 |
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