ZMD31010 RBicLite™ Low-Cost Sensor Signal Conditioner Brief Description Benefits The RBicLite™ ZMD31010 is a sensor signal conditioner integrated circuit, which enables easy and precise calibration of resistive bridge sensors via EEPROM. When mated to a resistive bridge sensor, it will digitally correct offset and gain with the option to correct offset and gain coefficients and linearity over temperature. A second-order compensation can be enabled for temperature coefficients of gain or offset or bridge linearity. The RBicLite™ communicates via ZMD’s ZACwire™ serial interface to the host computer and is easily mass calibrated in a Windows® environment. Once calibrated, the output pin Sig™ can provide selectable 0 to 1 V, rail-to-rail ratiometric analog output, or digital serial output of bridge data with optional temperature data. • • Features • Digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity • • • • No external trimming components required PC-controlled configuration and calibration via One-Wire Interface – simple, low cost High accuracy (±0.1% FSO @ -25 to 85°C; ±0.25% FSO @ -50 to 150°C) Single pass calibration – quick and precise Suitable for battery-powered applications Small SOP8 package Available Support • • • • Development Kit available Multi-Unit Calibrator Kit available Support for industrial mass calibration available Quick circuit customization possible for large production volumes Physical Characteristics • Accommodates differential sensor signal spans, • • ZACwire™ One-Wire Interface (OWI) • Internal temperature compensation and detection • • Optional sequential output of both, temperature ZMD31010 Application Circuit – Digital Output from 1.2 mV/V to 60 mV/V via bandgap PTAT (proportional to absolute temperature) and bridge readings, on ZACwire™ digital output • Supply voltage 2.7 to 5.5 V, with external JFET 5.5V to 30 V Current consumption depending on adjusted sample rate: 0.25 mA to 1 mA Wide operational temperature: –50 to +150°C • Output options: rail-to-rail analog output voltage, Vsupply absolute analog voltage, digital One-Wire Interface (OWI) • Fast response time, 1 ms (typical) • High voltage protection up to 30 V with external JFET • Chopper-stabilized true differential ADC • Buffered and chopper-stabilized output DAC +4.5 to +5.5 V VDD Bsink SigTM OUT/OWI ZMD31010 VBP Vgate VBN VSS 0.1 F Ground © 2009 ZMD AG — Rev. 2.00 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. ZMD31010 RBicLite™ Low-Cost Sensor Signal Conditioner ZMD31010 Block Diagram Highly Versatile Applications in Many Markets Including Industrial Building Automation Office Automation White Goods Automotive Portable Devices Your Innovative Designs Rail-to-Rail Ratiometric Voltage Output Applications Absolute Analog Voltage Output Applications Ordering Examples (Please contact ZMDI Sales for additional options.) Sales Code Description Package ZMD31010CEB ZMD31010 RBicLite™ Die — Temperature range:-50°C to +150°C Unsawn on Wafer ZMD31010CEC ZMD31010 RBicLite™ Die — Temperature range:-50°C to +150°C Sawn on Wafer Frame ZMD31010CED ZMD31010 RBicLite™ Die — Temperature range:-50°C to +150°C Waffle Pack ZMD31010CEG1 ZMD31010 RBicLite™ SOP8 (150 mil) — Temperature range:-50°C to +150°C Tube: add “-T” to sales code Reel: add “-R” ZMD31010KIT ZMD31010 SSC Evaluation Kit: Communication Board, SSC Board, Sensor Replacement Board, Evaluation Software, USB Cable, 5 IC Samples Kit Sales and Further Information www.zmdi.com [email protected] Zentrum Mikroelektronik Dresden AG (ZMD AG) ZMD America, Inc. ZMD AG, Japan Office ZMD Far East, Ltd. Grenzstrasse 28 01109 Dresden Germany 8413 Excelsior Drive Suite 200 Madison, WI 53717 USA Phone Fax Phone Fax Phone Fax Phone Fax +49 (0)351.8822.7.772 +49(0)351.8822.87.772 +01 (608) 829-1987 +01 (631) 549-2882 2nd Floor, Shinbashi Tokyu Bldg. 4-21-3, Shinbashi, Minato-ku Tokyo, 105-0004 Japan +81.3.6895.7410 +81.3.6895.7301 3F, No. 51, Sec. 2, Keelung Road 11052 Taipei Taiwan +886.2.2377.8189 +886.2.2377.8199 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 ZMD 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. © 2009 ZMD AG — Rev. 2.00 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.