TIPD107

Low-level V-to-I converter reference design, 0-V to 5-V input and 0-µA to 5-µA output

TIPD107

Design files

Overview

This verified design is a micro-amp voltage-to-current (V-I) converter that delivers a precise low level current to a load. The design operates on a single 5V supply and uses a precision low drift op-amp, and instrumentation amplifier. Simple modification can change the range and accuracy of the V-I converter.

Features
  • Translates Voltage to current: 0 to 5V, 0uA to 5uA
  • Error: 0.3% max uncalibrated, 0.01% max calibrated
  • Single-Supply Solution
  • Utilizes INA326 RRI/O Instrumentation Amplifier
This verified design includes:
  • Theory
  • Component Selection
  • TINA-TI Simulation
  • Verification and Measured Performance
  • Modification Options
Industrial
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDR207A.PDF (185 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC144.ZIP (161 KB)

Design file that contains information on physical board layer of design PCB

SLAC577A.ZIP (505 KB)

Detailed schematic diagram for design layout and components

TIDR185.PDF (75 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Instrumentation amplifiers

INA326Precision, Low Drift, CMOS Instrumentation Amplifier

Data sheet: PDF
Precision op amps (Vos<1mV)

OPA333Micropower, 1.8-V, 17-µA zero-drift CMOS precision operational amplifier

Data sheet: PDF | HTML

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Software

Support software

TIDC145 — TIPD107 Simulation

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIPD107 Low-level V-to-I converter reference design, 0-V to 5-V input and 0-µA to 5-µA output
Download options

TIDC145 TIPD107 Simulation

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Latest version
Version: 01.00.00.00
Release date: Sep 18, 2013
Hardware development
Reference design
TIPD107 Low-level V-to-I converter reference design, 0-V to 5-V input and 0-µA to 5-µA output

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc145 or www.ti.com/lit/xx/tidc145/tidc145.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC145. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
User guide TIPD107 Verified Design Reference Guide Sep 19, 2013

Related design resources

Design tools & simulation

SIMULATION TOOL
TINA-TI SPICE-based analog simulation program

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