USTI Overview
The Universal Sensors and Transducers Interface (USTI) is a fully digital CMOS integrated circuit of universal, 2-channel, high precision, multifunctional converter based on novel,.
USTI Key Features
- 29 measuring
- 2 identical channels
- Provides frequency (time)-to-digital conversion for many types of sensors and transducers
- Provides interfacing for resistive (including platinum (Pt), cuprum (Cu) resistors and thermistors (Ni)), capacitive sen
- Frequency range from 0.05 Hz up to 9 MHz without prescaling and 144 MHz with prescaling
- Programmable accuracy (relative error) for frequency (period) conversion from 1 % to 0.0005%
- Relative quantization error is constant in all specified frequency range
- Non-redundant conversion time
- Scalable resolution
- Internal reference clock 625 kHz, 20 MHz @ 20 MHz quartz oscillator
