ZSC31014 RBiciLiteTM Digital Output Sensor Signal Conditioner Brief Description Benefits 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 meast nd st sured signal for offset, 1 and 2 order span, and 1 nd and 2 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. The ZSC31014 is adjustable to nearly all piezoresistive bridge sensors. Measured and corrected bridge values are provided at digital output pins, 2 which can be configured as I C™* or SPI. The digital 2 I C™ interface can be used for a simple PCcontrolled calibration procedure to program calibration 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. Available Support The ZSC31014’s integrated diagnostics functions are well suited for safety-critical applications. High accuracy (±0.1% FSO @ -25 to +85°C; ±0.25% FSO @ -40 to +125°C) nd 2 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 temperature compensation for sensor correction and for corrected temperature output 48-bit customer ID field for module traceability Evaluation Kit Application Notes Mass Calibration Solution Physical Characteristics Features Simple PC-controlled configuration and single2 pass digital calibration via I C™ 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 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 2 ZSC31014 Application: I C™ Interface, Low-Power Bsink Option, Internal Temperature Correction Vsupply ZSC31014 VSS BSINK (2.7V to 5.5V) VDD INT/SS VBP SDA/MISO VBN SCL/SCLK 0.1µF GND * I2C™ is a trademark of NXP. For more information, contact ZMDI via [email protected]. © 2014 Zentrum Mikroelektronik Dresden AG — Rev. 1.64 —July 2, 2014. All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice. ZSC31014 RBiciLiteTM Digital Output Sensor Signal Conditioner VDD 0.1µF ZSC31014 Block Diagram (2.7V - 5.5V) Temperature Applications: RBiciLite™ Reference Sensor ZSC31014 Diagnostics Industrial: building automation, data loggers, pressure meters, leak detection monitoring VBP Medical: infusion pumps, blood pressure meters, air mattresses, apnea monitors POR/Oscillator A D VBN PreAmp INMUX 14-Bit ADC Optional Bsink White Goods / Appliances: fluid level, refrigerant EEPROM w/ Bsupply Consumer: body monitors, portable monitors, desktop weather stations, bathroom scales, toys/games DSP Core Charge Pump & Checksum INT/SS I2C™ or SPI Interface SDA/MISO SCL/SCLK VSS Application: Half-Bridge Voltage Measurement Application: Generic Differential A2D Converter Vsupply 5V ZSC31014 ZSC31014 VSS e.g. HIH4000 BSINK VSS VDD Differential Signal from Any Source BSINK INT/SS O VBP SDA/MISO U VBN T/ V Supply VDD INT/SS VBP SDA/MISO VBN SCL/SCLK 0 .1 µF SCL/SCLK 0.1µF GND GND Ordering Examples (Refer to section 10 in the data sheet for additional options.) Sales Code Description Package ZSC31014EAB ZSC31014 Die — Temperature range: -40°C to +125°C Unsawn on Wafer ZSC31014EAC ZSC31014 Die — Temperature range: -40°C to +125°C Sawn on Wafer Frame ZSC31014EAG1 ZSC31014 SOP8 (150 mil) — Temperature range: -40° to +125°C Tube: add “-T” to sales code / Reel: add “-R” ZSC31014KIT ZSC31014 SSC Evaluation Kit: Communication Board, SSC Board, Sensor Replacement Board, USB Cable, 5 IC Samples (software can downloaded on www.zmdi.com/zsc31014) Kit Sales and Further Information www.zmdi.com [email protected] Zentrum Mikroelektronik Dresden AG Global Headquarters Grenzstrasse 28 01109 Dresden, Germany ZMD America, Inc. 1525 McCarthy Blvd., #212 Milpitas, CA 95035-7453 USA Central Office: Phone:+49.351.8822.306 Fax: +49.351.8822.337 USA Phone 1.855.275.9634 Phone +1.408.883.6310 Fax +1.408.883.6358 European Technical Support Phone +49.351.8822.7.772 Fax +49.351.8822.87.772 DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG (ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under no circumstances shall ZMD AG be liable to any customer, licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of Z MD AG for any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise. European Sales (Stuttgart) Phone +49.711.674517.55 Fax +49.711.674517.87955 Zentrum Mikroelektronik Dresden AG, Japan Office 2nd Floor, Shinbashi Tokyu Bldg. 4-21-3, Shinbashi, Minato-ku Tokyo, 105-0004 Japan ZMD FAR EAST, Ltd. 3F, No. 51, Sec. 2, Keelung Road 11052 Taipei Taiwan Phone +81.3.6895.7410 Fax +81.3.6895.7301 Phone +886.2.2377.8189 Fax +886.2.2377.8199 Zentrum Mikroelektronik Dresden AG, Korea Office U-space 1 Building 11th Floor, Unit JA-1102 670 Sampyeong-dong Bundang-gu, Seongnam-si Gyeonggi-do, 463-400 Korea Phone +82.31.950.7679 Fax +82.504.841.3026 © 2014 Zentrum Mikroelektronik Dresden AG — Rev. 1.64 —July 2, 2014. All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.