High-Side Voltage-to-Current (V-I) Converter

Reference Design using part OPA2333AIDGKR by Texas Instruments

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Manufacturer

Texas Instruments
  • Application Category
    Amplifiers and Comparators
  • Product Type
    Analog Amplification

Associated Documents

For End Products

  • Electrocardiograph Battery Powered
  • Electronic Scale
  • Portable Medical Instrumentation
  • Sensor and Transducer

Description

  • High-side voltage-to-current (V-I) converter. This high-side voltage-to-current (V-I) converter delivers a well-regulated current to a ground referenced load. The design utilizes a two-stage approach to allow the high-side current source to accept a ground-referenced input. The first stage uses an Op-Amp and n-channel MOSFET to translate the ground-referenced input to a supply-referenced signal. The supply-referenced signal drives the second stage Op-Amp that controls the gate of a p-channel MOSFET to regulate the load current

Key Features

  • Number of Supplies
    Single
  • Supply Voltage
    5 V

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
OPA2333AIDGKR Texas Instruments Operational Amplifiers - Op Amps Op Amp Dual Low Offset Voltage Amplifier R-R I/O ±2.75V/5.5V 8-Pin VSSOP T/R Buy
OPA2333AIDGKRG4 Texas Instruments Operational Amplifiers - Op Amps Op Amp Dual Low Offset Voltage Amplifier R-R I/O ±2.75V/5.5V 8-Pin VSSOP T/R Buy

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