The ZSSC3015’s combination of many diagnostic features on-chip, including EEPROM signature verification, bridge connection checks, bridge short checks and power loss detection, as well as its AEC-Q100 qualification, fulfills the requirements for a wide range of automotive applications. In addition to digital compensation of sensor offset and sensitivity, the ZSSC3015 offers the option to connect an external temperature sensor for more accurate correction of temperature drift and nonlinearity.
The ZSSC3015 RBicdLite-AutoTM sensor signal condi- tioner IC is adjustable to nearly all piezo-resistive bridge sensors. Measured and corrected bridge values are provided at the SigTM pin, which can be configured as an analog voltage output or as a one- wire serial digital output.
The ZACwireTM digital one-wire interface (OWI) can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an on-chip EEPROM. The calibrated ZSSC3015 and a specific sensor are mated digitally: fast, precise, and without the cost overhead associated with trimming by external devices or laser. Integrated diagnostics functions make the ZSSC3015 particularly well-suited for automotive applications.
Features
Available Support
The ZACwireTM digital one-wire interface (OWI) can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an on-chip EEPROM. The calibrated ZSSC3015 and a specific sensor are mated digitally: fast, precise, and without the cost overhead associated with trimming by external devices or laser. Integrated diagnostics functions make the ZSSC3015 particularly well-suited for automotive applications.
Features
- Digital compensation of sensor offset, sensitivity, temperature drift, and nonlinearity
- Programmable analog gain and digital gain; accommodates bridges with spans < 1mV/V and high offset
- Many diagnostic features on chip (e.g., EEPROM signature, bridge connection checks, bridge short detection, power loss detection)
- Independently programmable high and low clipping levels
- 24-bit customer ID field for module traceability
- Internal temperature compensation reference (no external components)
- Option for external temperature compensation with addition of single diode
- Output options: rail-to-rail ratiometric analog voltage (12-bit resolution), absolute analog voltage, ZACwireTM digital one-wire interface
- Fast power-up to data out response; output available 5ms after power-up
- Current consumption depends on programmed sample rate and mode: 1mA down to 300μA (typ.)
- Fast response time: 1.4ms typical
- High voltage protection: ≤ 30V with external JFET
- AEC-Q100 qualified
- No external trimming components required
- PC-controlled configuration and calibration via ZACwireTM one-wire interface – simple, low cost
- High accuracy (as high as ±0.1% FSO @ -25 to 85°C; ±0.25% FSO @ -50 to 150°C)
- Single-pass calibration – quick and precise
- Evaluation Kit available
- Mass Calibration System available
- Support for industrial mass calibration available
- Quick circuit customization possible for large production volumes
Physical Characteristics
- Wide operation temperature: –50°C to +150°C
- Supply voltage 2.7 to 5.5V; with external JFET, 5.5 to 30V
- Small SOP8 package
For samples and quotations, please contact sales@score-electronics.com
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