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Single-Ended Input to Differential Output Conversion Circuit Reference Design
TIPD131
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Single Supply Single-Ended Input to Differential Output Design Guide
(PDF 1702 KB)
29 Aug 2013
-
TIPD131 Design File
(ZIP 1446 KB)
22 Oct 2013
Description
This TI Precision Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a single ended input to differential output circuit which converts a single ended input of +0.1V to +2.4V into a differential output of ± 2.3V on a single +2.7V supply. The output range is intentionally limited to maximize linearity. The circuit is composed of 2 amplifiers. One amplifier acts as a buffer and creates a voltage, Vout+. The second amplifier inverts the input and adds a reference voltage to generate Vout-. Both Vout+ and Vout- range from 0.1V to 2.4V. The difference, Vdiff, is the difference between Vout+ and Vout-. This makes the differential output voltage range +2.3V.
Features
- 100kHz Small Signal Bandwidth
- Low Power: 100mA current consumption
- ±0.1% FSR Vdiff Uncalibrated Error
- ±0.01% FSR Vdiff Calibrated Error
- Converts 0.1V - 2.4V Input to ±2.3V Output at +1.25V Vcm
See the Important Notice and Disclaimer covering reference designs and other TI resources.
