
Zentrum Mikroelektronik Dresden AG
Brief Description
The RBiciLiteTM is a CMOS integrated circuit for highly accurate amplification and analog-to-digital conversion of differential and half-bridge input signals. The RBiciLiteTM can compensate the measured signal for offset, 1st and 2nd order span, and 1st and 2nd order temperature (Tco and Tcg). It is well-suited for sensor-specific correction of bridge sensors. Digital compensation of signal offset, sensitivity, temperature drift, and non-linearity is accomplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a non-volatile EEPROM.
FEATUREs
• High accuracy (±0.1% FSO @ -25 to +85°C;
±0.25% FSO @ -40 to +125°C)
• 2nd order charge-balancing analog-to-digital
converter provides low noise, 14-bit data at
sample rates exceeding 2kHz
• Fast power-up to data output response: 3ms
at 4MHz
• Digital compensation of sensor offset, sensitivity,
temperature drift, and non-linearity
• Eight programmable analog gain settings combine with a digital gain term; accommodates
bridges with spans <1mV/V and high offset
• Internal or optional external temperature compensation for sensor correction and for corrected
temperature output
• 48-bit customer ID field for module traceability