npa the npa product series is provided in a miniature size as a cost efective solution for applications that require calibrated performance. packaged in a soic14 pin surface mount, the npa series is available in gauge, absolute or diferential pressure ranges with either mv, amplifed analog or digital outputs. the sensor is intended for printed circuit board mounting and delivered in tape and reel form to simplify manufacturing handling. features ? surface mountable ? diferential, gauge, absolute & low pressure ? 10 h2o to 30 psi full scale ? output options: amplifed analog, digital serial (14bit), digital i 2 c, uncalibrated mv ? on chip temperature sensor in digital mode ? operating temperature range of -40 to 125c ? total error band < 1.5% fso ? 60 psi proof pressure on all ranges surface-mount pressure sensor series ge measurement & control solutions ge imagination at work
general npa specifcations parameter value units notes environmental temperature range operating -40 to +125 c -40 to +257f compensated 0 to 60 c +32 to +157f storage -40 to +125 c -40 to +257f mechanical weight ~1 grams media compatibility positive diferential and gauge ports compatible with exposed materials 1 negative diferential ports dry gases only notes: 1. exposed materials are thermoset plastic, silicon, epoxy, rtv, pyrex and silicone parameter units min typ max notes common parameters accuracy (total error band) %fso -1.5 1.5 proof pressure (10h2o to 1 psi) psi 35 proof pressure (>1 psi to 30 psi) psi 60 maximum package pressure 60 pressure ranges 10h2o 30psi series excitation voltage min/max notes npa-100 1.5ma npa uncompensated, mv npa-300 3.3v 3.135 v to 3.465 v npa compensated, low power amplifed analog npa-500 5.0v 4.75 v to 5.25 v npa compensated, amplifed analog npa-600 5.0v * 4.75 v to 5.25 v npa compensated, digital serial npa-700 5.0v * 4.75 v to 5.25 v npa compensated, digital i 2 c * 3.3v optional, contact factory for more details
parameter units min typ max analog performance parameters 5 volt excitation ofset volts 0.44 0.5 0.56 span volts 4 analog performance parameters 3.3 volt excitation ofset volts 0.46 0.5 0.54 span volts 2.5 typical analog circuits circuit layout same as ratiometric voltage output ratiometric voltage output - standard npa absolute voltage output - request required ratiometric voltage output with over-voltage protection - request required 1 2 3 4 5 6 7 14 13 12 11 10 9 8 np a s e ns or v s s v g at e v d d s i g 1 2 3 4 5 6 7 14 13 12 11 10 9 8 np a s e ns or v s s v g at e v d d s i g v s up pl y +2 .7 to +5 .5 v v o ut g r ou nd 0. 1 f 1 2 3 4 5 6 7 14 13 12 11 10 9 8 np a s e ns or v s s v g at e v d d s i g 1 2 3 4 5 6 7 14 13 12 11 10 9 8 np a s e ns or v s s v g at e v d d s i g v s uppl y +5 .5 to +3 0 v v o ut g r o und 0. 1 f mm bf 4 392 1 2 3 4 5 6 7 14 13 12 11 10 9 8 np a s e ns or 1 2 3 4 5 6 7 14 13 12 11 10 9 8 t v s up pl y +5 to +5 .5 v v o ut g r o und 0. 1 f j 107 v s s v g at e v d d s i g np a s e ns or v s s v g a e v d d s i g pin # amplifed analog function notes 1 -- 2 -- 3 -- 4 -- 5 -- 6 vss ground supply 7 -- 8 sig analog out, calibration interface 9 vdd supply voltage 10 -- 11 -- 12 -- 13 -- 14 -- npa pinout output option: amplifed analog
output option: digital serial (14 bit) parameter units min typ max notes digital performance resolution adc 14bit 16383 steps sampling rate khz 1 digital serial output temperature sensor accuracy 4c 8bit zacwiredigital output (nom) bridge readings with temperature option zacwiredigital output (nom) bridge readings digital output options streaming serial output is a 14 bit number proportional to the full scale. data byte bridge high data byte bridge low start bit parity bit data byte data bit (example: bit 2 ? stop bit s p 2 ? stop s 0 0 5 4 3 2 1 0 p s 7 6 5 4 3 2 1 0 p ? stop 2 data byte packet digital bridge output 3 data byte packet digital bridge output with temperature s 0 0 5 4 3 2 1 0 p s 7 6 5 4 3 2 1 0 p ? stop s 7 6 5 4 3 2 1 0 p ? stop data byte bridge high data byte bridge low data byte temperature pin # amplifed digital serial function notes 1 -- 2 -- 3 -- 4 -- 5 -- 6 vss ground supply 7 -- 8 sig digital out, calibration interface 9 vdd supply voltage 10 -- not connected 11 -- 12 -- 13 -- 14 -- npa pinout
output option: digital i 2 c pin # digital i 2 c function notes 1 -- 2 -- 3 -- 4 -- 5 -- 6 vss ground supply 7 vdd supply voltage 8 sda serial data, calibration interface 9 scl serial clock, calibration interface 10 -- 11 -- 12 -- 13 -- 14 -- digital i 2 c update mode output options npa pinout parameter units min typ max notes digital performance resolution (adc) bit 14 16383 steps i 2 c slave address 0x28 sampling rate khz 2 i 2 c bit rate kbits/s 100 400 i 2 c mode update temperature accuracy (0 to 60c) c 2 11 bit
output option: uncalibrated mv npa uncalibrated performance 10 h20 to 1 psi 5 psi to 30 psi parameter units min typ max notes min typ max notes pressure range psi 0.36 to 1 10h2o = 0.361psi = 2.49kpa 5 to 30 excitation ma 1.5 10 vdc maximum 1.0 10 vdc maximum input impedance 500020% 5000 20% output impedance 500020% 5000 20% zero ofset mv 75 10 full scale output mv 40 to 120 10 h20 100 to 166 5 psi to 30 psi 75 to 135 1 psi linearity %fso 0.25 bfsl 0.25 pressure hysteresis %fso 0.20 0.15 temperature coefcient of zero v/ v / c 30 20 temperature coefcient of resistance % /c 0.29 0.38 temperature coefcient of sensitivity %fso/c -0.2 -0.19 thermal hysteresis of zero %fso 0.15 0.2 position sensitivity %fso 0.2 n/a pin # uncalibrated mv function notes 1 -- 2 -- 3 vp sensor interface positive output 4 vssp sensor interface ground 5 -- 6 -- 7 -- 8 -- 9 -- 10 -- 11 vn sensor interface negative output 12 vddp sensor interface positive excitation 13 -- 14 -- npa pinout
manifold design ( all measurements given in mm) barbed design recommended tubing size of 3/32 id, 7/32 od, 1/16 wall thickness ( all measurements given in mm) no port design ( all measurements given in mm) suggested pcb land pattern 1 barb port request required package leadframe material: alloy 194, nipdau plated
? 2011 general electric company. all rights reserved. specifcations are subject to change without notice. ge is a registered trademark of general electric company. other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not afliated with ge. www.ge-mcs.com 920-477d model npa code description 100 mv output, ratiometric uncalibrated sensor 300 analog amplifed output, 3.3vdc excitation, calibrated sensor 500 analog amplifed output, 5vdc excitation, calibrated sensor 600 zacwire digital serial output, calibrated sensor, 2 byte 601 zacwire digital serial output, calibrated sensor, 3 byte 700 i 2 c - digital output, calibrated sensor, 2 byte code port type m 1 manifold port for gauge and absolute pressure types b 2 barbed ports for gauge, absolute and diferential pressure types** n non ported code pressure range 10w 10h20 (2.5 kpa) 001 1 psi (7 kpa) 005 5 psi (35 kpa) 015 15 psi (100 kpa) 030 30 psi (200 kpa) code pressure type g gauge d diferential a * absolute npa - - note: * absolute pressure ranges are available in 15 psia and 30 psia only. ** 1 barbed port available upon request contact ge for custom pressure ranges. refer to application guide 910-289 for more information. product is rohs:2010 compliant. ordering information warranty ge warrants its products against defects in material and workmanship for 12 months from the date of shipment. products not subjected to misuse will be repaired or replaced. ge reserves the right to make changes without further notice to any products herein. ge makes no warranty, representation or guarantee regarding the suitability of its products for any particular application. ge does not assume any liability arising out of the application or use of any product or circuit and specifcally disclaims, and all liability, without limitation consequential or incidental damages. the foregoing warranties are exclusive and in lieu of all other warranties, whether written, oral, implied or statutory. no implied statutory warranty or merchantability or ftness for particular purpose shall apply.
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