low power, 5- electrode electrocardiogram ( ecg ) a nalog front end preliminary technical data ADAS1000 rev. pr.d information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or ot her rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062 - 9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ? 2011 analog devices, inc. all rights reserved. features biopotential s ignal s in; digitized signals out 5 acquisition (ecg) channels + 1 driven lead parallel ics for up to 10 + electrode measurements ac and dc leads off detection internal pace detection algorithm on 3 leads s upport for users own pace th oracic impedance meas urement (int ernal/ex t ernal path ) selectable reference lead scalable noise vs. power control low power operation from: 11 mw (one lead), 14mw (3 leads), 19mw (all electrodes) power down modes lead or electrode data available supports aa mi ec11:1991/(r)2001/(r)2007, ec13:2002/(r)2007, iec60601 - 1 ed. 3.0b, 2005, iec60601 - 2- 25 ed. 1.0b, iec60601 -2- 27 ed. 2.0, 2005 iec60601 -2- 51 ed. 1.0, 2005 fast overload recovery low or high speed data output rates serial interface spi? - /qspi? - /dsp - compati ble 56 lead lfcsp package ( 8 mm x 8 mm) 64 lead lqfp package (10mm x10mm body size) applications ecg : monitor & diagnostic bedside patient monitoring, portable telemetry, holter, aed, cardiac defibrillators, ambulatory monitors, pace maker programmer, pat ient transport, stress testing, general description the ADAS1000 measures electro cardiac (ecg) signals, thoracic impedance, pacing artifacts, lead on/off status and outputs this information in the form of a data frame supplying either lead/vector or elect rode data at programmable data rates. its low power and small size make it suitable for portable, battery powered applications. the high performance also makes it suitable for higher end diagnostic machines. the ADAS1000 is designed to simplify the task o f acquiring and ensuring quality ecg signals. value - added cardiac post - processing is executed externally on a dsp, microprocessor or fpga. several digital output options ensure flexibility when monitoring and analyzing signals. the ADAS1000 provides a low power, small data acquisition system for biopotential applications . functional block dia gram - + common mode amp rld_sj driven lead amp shield drive amp shield drive electrodes x 5 rld_fb cm_io voltage reference refout xtal in xtal o ut clock gen/osc /external clk source refin cal_dac _io amp adc respiration path - + ext resp 1 ext resp 2 muxes vcm (1.5v) rld_out ac leads off dac respiration dac calibration dac amp adc 5 x ecg path filters, control & interface logic pace detection shield drive 8.192mhz cyrstal or clock optional cs sclk sdi sdo drdy clk_io standard serial interface secondary master interface for pace gpio3 gpio1/msclk gpio2/msdo gpio0/mcs ext resp 3 leads off detection figure 1 functional block diagram
ADAS1000 preliminary technical data rev. pr.d | page 2 of 3 general description - continued auxiliary features that aid in better quality ecg signal acquisition include: multi - channel averaged driven lead, selectable reference drive , fast ove r load recovery, flexible respiration circuitry returning magnitude and phase information , internal pace detection algorithm operating on 3 leads and option of ac or dc leads off detection. since ecg systems span different applications, the ADAS1000 features a novel power/noise scaling architecture where the noise can be reduced at the expense of increasing power consumption. signal acquisition channels may be shutdown to save power. data rates can be reduced to save power. to ease manufacturing tests, development, as well as offer holistic power - up testing, the ADAS1000 offer s a suite of dc and ac test excitation via the cal dac , crc redundancy testing in addition to read - back of all relevant register address space . the ADAS1000 is available in two package options, either a 56 lead lfcsp or a 64 lead lqfp package and is specified over - 40c to +85c temperature range.
preliminary technical data ADAS1000 rev. pr.d | page 3 of 3 outline dimensions compliant to jedec standards mo-220-vlld-2 081809-b top view 1 56 14 15 43 42 28 29 5.25 5.10 sq 4.95 0.50 0.40 0.30 0.30 0.23 0.18 0.20 ref 12 max 0.80 max 0.65 typ 1.00 0.85 0.80 6.50 ref seating plane 0.60 max 0.60 max coplanarity 0.08 0.05 max 0.02 nom 0.25 min for proper connection of the exposed pad, refer to the pin configuration and function descriptions section of this data sheet. pin 1 indicator 8.10 8.00 sq 7.90 7.85 7.75 sq 7.65 0.50 bsc bottom view exposed pad pin 1 indicator figure 2. 56 lead, 8 mm x 8 mm lfcsp compliant t o jedec s t andards ms-026-bcd 051706- a top view (pins down) 1 16 17 33 32 48 49 64 0.27 0.22 0.17 0.50 bsc lead pitch 12.20 12.00 sq 1 1.80 pin 1 1.60 max 0.75 0.60 0.45 10.20 10.00 sq 9.80 view a 0.20 0.09 1.45 1.40 1.35 0.08 coplanarit y view a ro ta ted 90 ccw se a ting plane 0.15 0.05 7 3.5 0 figure 3 . 64 lead, 10mm x 10mm body size lqfp d d odel 1 temperature range package description lead finish package ption ADAS1000bcpz - 40c to +85c 56 lead lfcsp tbd cp - 56 ADAS1000bstz - 40c to +85c 64 lead l qfp tbd st- 64 eval - ADAS1000ebzu1 1 st silicon evaluation kit 1 z = pb - free part. ? 2011 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. pr09660-0-1/11(prd)
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