An ion sensitive field-effect transistor (ISFET) integrated with a low-power pH sensor 3

2. Design of signal conditioning circuit

Design a suitable signal conditioning circuit to process the output signal of ISFET and convert it into a readable voltage or current signal. The signal conditioning circuit can include amplifiers, filters, analog-to-digital converters, etc.diode

3. Data processing and interface design

Design a data processing module inside the chip to process ISFET data and output it to external systems. Meanwhile, design appropriate interfaces (such as I2C, SPI, etc.) to communicate with external systems.diode

4、 Optimization and Testing

Optimize the chip design, including power consumption optimization, noise suppression, linear performance optimization, etc. Conduct chip manufacturing and testing to verify the performance and accuracy of the design.diode

5、 Common Problems and Solutions

1. Temperature compensation: Temperature has a significant impact on the performance of ISFETs, and temperature sensors can be used for temperature compensation. The output of ISFETs can be corrected through temperature compensation algorithms.