Analog DevicesEVAL-CN0335-PMDZDevelopment Kits and Tools

Reference Design: 12-Bit, 300 kSPS, Single-Supply, Fully Isolated, Data Acquisition System for ±10 V Inputs

EVAL-CN0335-PMDZ is Pmod interface board with a completely isolated 12-bit, 300 kSPS data acquisition system utilizing only three active devices. The system processes ±10 V input signals using a single 3.3 V supply. The total error after room temperature calibration is less than ±0.1% FSR over a ±10°C temperature change, making it ideal for a wide variety of industrial measurements. The small footprint of the circuit makes this combination an industry-leading solution for data acquisition systems where accuracy, speed, cost, and size play a critical role. Both data and power are isolated, thereby making the circuit robust to the high voltages and ground-loop interference often encountered in harsh industrial environments.

Block Diagram:

 

Features:

• Industrial level signal conditioning

• Single supply

• Fully isolated

Applications:

• Battery-powered systems

• Handheld meters

• Medical instruments

• Instrumentation and control systems

• Data acquisition systems

• Optical sensors

• Diagnostic/monitoring

Functional Test Setup

The following equipment is needed:

• PC with a USB port Windows® XP or Windows Vista®

• (32-bit), or Windows® 7/8 (64 or 32-bit)

• EVAL-CN0335-PMDZ circuit evaluation board

• EVAL-SDP-CB1Z SDP evaluation board

• SDP-PMD-IB1Z interposer board

• CN0335 evaluation software

• Precision voltage source

Compatible FPGA Boards

• EVAL-SDP-CB1Z: Blackfin® (SDP-B) controller board

• SDP-PMD-IB1Z: Pmod to SDP Adaptor Board 

• Intel boards with the Pmod connector

Related ADI parts:

• AD8606:  Precision, Low Noise, RRIO, CMOS Op Amp (Dual)

• ADUM5401: Quad-Channel Isolators with Integrated DC/DC Converter (3/1 channel directionality)

• AD7091R: 1 MSPS, Ultralow Power, 12-Bit ADC in 10-Lead LFCSP and MSOP

Reference Documentation

• ADI Pmod Daughter Cards