TIPD154
Low-Power Reference and Bipolar Voltage Conditioning Circuit Reference Design for Low-Power ADCs
TIPD154
Overview
This TI Precision Verified Design provides the theory, component selection, and simulation for a single-supply, low-power signal conditioning circuit designed to translate a +/-5 V input signal to the proper input range of a single-supply low-power 16-Bit ΔΣ ADC such as the one inside the MSP430 or other similar single-supply ADCs. A zero-drift op amp was selected to provide excellent dc performance in the attenuation and level-shifting circuit. Two low-power reference circuits are used to provide power, the ADC reference voltage, and biasing to the input conditioning circuit.
Features
• TI Precision Designs: Verified Design Contains Theory, Component Selection, TINA-TI Simulation
• Conditions a +/-5V signal input signal for a 1.25V ADC
• Total operational current < 100 μA
• Single-Supply Solution
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.
Detailed schematic diagram for design layout and components
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Design file that contains information on physical board layer of design PCB
Products
Includes TI products in the design and potential alternatives.
Start development
Technical documentation
| Type | Title | Date | ||
|---|---|---|---|---|
| * | User guide | Low-Power Reference and Bipolar Voltage Conditioning Circuit for Low-Power ADCs | Mar. 06, 2014 |
Related design resources
Design tools & simulation
SIMULATION TOOL
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