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ZSC31014 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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ZSC31014 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 59 page  RBicilite™ Digital Output Sensor Signal Conditioner ZSC31014 Datasheet © 2016 Integrated Device Technology, Inc. 1 January 20, 2016 Vsupply (2.7V to 5.5V) GND 0.1µF VSS VDD BSINK INT/SS VBP SDA/MISO VBN SCL/SCLK ZSC31014 Brief Description The ZSC31014 is a CMOS integrated circuit for highly accurate amplification and analog-to-digital conversion of differential and half-bridge input signals. The ZSC31014 can compensate the mea- sured signal for offset, 1 st and 2nd order span, and 1st and 2 nd order temperature (Tco and Tcg). It is well suited for sensor-specific correction of bridge sen- sors. 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. The ZSC31014 is adjustable to nearly all piezo- resistive bridge sensors. Measured and corrected bridge values are provided at digital output pins, which can be configured as I 2C™* or SPI. The digital I 2C™ interface can be used for a simple PC- controlled calibration procedure to program cali- bration coefficients into an on-chip EEPROM. The calibrated ZSC31014 and a specific sensor are mated digitally: fast, precise, and without the cost overhead associated with trimming by external devices or laser trimming. The ZSC31014’s integrated diagnostics functions are well suited for safety-critical applications. Features • High accuracy (±0.1% FSO @ -25 to +85°C; ±0.25% FSO @ -40 to +125°C) • 2 nd 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 com- bine with a digital gain term; accommodates bridges with spans <1mV/V and high offset • Internal temperature compensation for sensor correction and for corrected temperature output • 48-bit customer ID field for module traceability * I 2C™ is a trademark of NXP. Benefits • Simple PC-controlled configuration and single- pass digital calibration via I 2C™ interface – quick and precise; SPI option for measurement mode • Eliminates need for external trimming components • On-chip diagnostic features add safety to the application (e.g., EEPROM signature, bridge connection checks, bridge short detection). • Low-power Sleep Mode lengthens battery life • Enables multiple sensor networks Available Support • Evaluation Kit • Application Notes • Mass Calibration Solution Physical Characteristics • Wide supply voltage capability: 2.7V to 5.5V • Current consumption as low as 70μA depending on programmed sample rate • Low- power Sleep Mode (<2μA @ 25°C) • Operation temperature: -40°C to +125°C • Small SOP8 package ZSC31014 Application: I 2C™ Interface, Low-Power Bsink Option, Internal Temperature Correction |
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