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MSFET 3330: pH ISFET sensor
Price (CHF):
Miniaturized solid-state pH sensor based on ISFET technology.
Description
The MSFET3330 is an Ion Sensitive Field Effect Transistor (ISFET). As such it is a solid state, potentiometric sensor capable of measuring pH in the range of pH 1 to pH 14 with a linear response. It is characterized by high pH sensitivity, low drift, and low light sensitivity. The fabrication process is based on ion implantation, gate oxidation, diffusion, and a tantalum oxide (Ta2O5) gate dielectric.
Characteristics
- Small size
- Glass-free construction
- Robust design
- Dry storage
- wide range of applications
Key Specifications
- Typical pH range: pH2 - pH12
- Typical sensitivity: 55mV/pH
- Response time: 90% signal level: < 5 sec
- requires interface electronics and a reference electrode
Options
- Standard housing
- Miniature packaging
Documents
Functionalized Ion-Selective ISFET sensors
Microsens' portfolio also includes MSFET sensors with ion-selective membranes. Currently, ion-selective ISFET sensors are available for Potassium (K+), Nitrate (NO3-), Sodium (Na+) and Ammonia (NH4+) - MSFET334x sensor page. Other ion-sensitivities such as MSFET for the measurement Phosphate (H2PO4-) are under development.
Technology
