12-bit: 20-MSPS Data Acquisition Reference Design for Digitizer
Description
This reference design enables a cost-effective and low-power data acquisition system that provides an alternative to FPGA-based systems. It features a single-ended: high-impedance input that can be used in a wide number of applications: including portable instrumentation and digitizers.The reference design utilizes the ADS4122 analog-to-digital converter (ADC): along the with the OPA656 and THS4541 operational amplifiers (op amps) to develop a 12-bit: 20-MSPS digitizer for the BeagleBone Cape form factor. The expansion board devleoped in this reference design interfaces with the BeagleBone Black development platform: which is a low-cost: open-source: community-supported environment based on the ARM Cortex-A8 processor.
Features
- Single-ended-to-differential data acquisition reference design using the OPA656 and THS4541 op ampsLow-power (330/channel) operation suitable for handheld devicesOption to choose between 50 ohm / 1 Mohm input impedanceLow system cost; replaces FPGA for data capture with Sitara™ processor (BeagleBone Black)2V peak-to-peak input voltage range
Applications
- Oscilloscopes & digitizers
- Seeker front end
- Laser distance meter
Product Categories
- Data converters