Dual-channel data acquisition reference design for optical encoders: 12 bits: 1 MSPS
Description
This TI Precision Verified Design provides the theory: component selection: simulation: PCB design: and measurement details for a 12-bit 1-MSPS single supply dual channel simultaneous data acquisition system. This circuit achieves 73 dB SINAD for a 4.5 V differential signal at 2 KHz input frequency. Differential input may have a wide range of common mode voltage. Circuit includes a low impedence buffer: low pass RC filter and 12 bit: Dual: Simultaneous Sampling SAR ADC with internal reference voltage source.
Features
- 12-Bit: 2-Channel: Simultaneous Data Acquisition at 1-MSPS Throughput72dB SNR: 85dB THD: 71.5dB SINAD AC Performance±4.5 V Differential Input Voltage SignalAlternate component choices with measured results shown for 16-bit and 14-bit performance upgrade
Applications
- Servo drive position feedback
- Servo drive control module
- AC drive position feedback
- Servo drive functional safety module
Product Categories
- Data converters
| Title | Updated | Type | Size (KB) |
|---|---|---|---|
| Closed-loop motor control: An introduction to rotary resolvers and encoders | 11 Apr 2014 | 716 |
| Download |
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| Download the bill of materials for TIPD117 | Download |
Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for TIPD117| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIPD117 BOM | 22 Oct 2013 | 57 | ||
| TIPD117 Schematic | 22 Oct 2013 | 71 | ||
| TIPD117 Gerber | 17 Jul 2013 | ZIP | 306 |