The EVAL-CN0326-PMDZ evaluation board circuit is a completely isolated low power pH sensor signal conditioner and digitizer with automatic temperature compensation for high accuracy.
The circuit gives 0.5% accurate readings for pH values from 0 to 14 with greater than 14-bits of noise-free code resolution and is suitable for a variety of industrial applications such as chemical, food processing, water, and wastewater analysis.
This circuit supports a wide variety of pH sensors that have very high internal resistance that can range from 1 MΩ to several GΩ, and digital signal and power isolation provides immunity to noise and transient voltages often encountered in harsh industrial environments.
The EVAL-CN0326-PMDZ circuit board uses the EVAL-SDP-CB1Z System Demonstration Platform (SDP) evaluation board and the SDP-PMD-IB1Z, a PMOD interposer board for the EVAL-SDP-CB1Z. The SDP and the SDP-PMD-IB1Z boards have 120-pin mating connectors, allowing the quick setup and evaluation of the circuit’s performance. In order to evaluate the EVAL-CN0326-PMDZ board using the SDP-PMD-IB1Z and the SDP, the EVAL-CN0326-PMDZ is connected to the SDP-PMD-IB1Z by a standard 100 mil-spaced, 25 mil square, right angle pin-header connector.
Key Applications: Instrumentation, Field Instruments/ Smart Transmitters, Chemical Analysis, Building Control & Automation.