HCA0611ARG8 SENSORTECHNICS | Alldatasheet

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Technical content

Miniature amplified barometric pressure sensors 1/6E / 11641 / A www.sensortechnics.com

FEATURES

(SPI and switching outputs optional)

  • Precision ASIC conditioning
  • Calibrated and temperature compensated
  • Miniature SMT or SIL housing
  • RoHS compliant
  • Sensortechnics PRO services ELECTRICAL CONNECTION +Vs Vout SC L SD A GND SPECIFICATIONS Maximum ratings Output current Sink 1 mA Source 1 mA Proof pressure3 3000 mbara Burst pressure4 5000 mbara Lead specifications Average preheating temperature gradient2.5 K/s Soak time ca. 3 min Time above 217°C 50 s Time above 230°C 40 s Time above 250°C 15 s Peak temperature 260°C Cooling temperature gradient -3.5 K/s Temperature ranges Compensated 0 ... +85°C Operating -25 ... +85°C Storage -40 ... +125°C Humidity limits (non-condensing) 0 ... 95 %RH Note: Pins 5 and 8(connections for digital I2C-bus) are only available for SMD package (HCA...H)

Miniature amplified barometric pressure sensors 2/6E / 11641 / A www.sensortechnics.com Specification notes: 1. Total accuracy is the combined error from offset and span calibration, linearity, pressure hysteresis, and temperature effects. Linearity is the measured deviation based on a straight line. Hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure. Calibration errors include the deviation of offset and full scale from nominal values. 2. Full Scale Span (FSS) is the algebraic difference between the output signal for the highest and lowest specified pressure. 3. Proof pressure is the maximum pressure which may be applied without causing durable shifts of the electrical parameters of the sensing element. 4. Burst pressure is the maximum pressure which may be applied without causing damage to the sensing element or leaks to the housing. 5. Max. delay time between pressure change at the pressure die and signal change at the output. 6. The response time depends on the adjusted internal A/D resolution of the sensor. For 15 bit it is typ. 2 ms. Other A/D resolutions and reponse times are available on request. Please contact Sensortechnics for further information. 7. Sensors with lower current consumption are available on request. Please contact Sensortechnics for further information. PERFORMANCE CHARACTERISTICS (Vs = 5.0 V, TA = 25 °C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS, pressure applied to high pressure port) scitsiretcarahC. niM. pyT. xaMt inU egnarerusserpgnitarepO. ..RA1160ACH0 060 011 arabm ...RA1180ACH0 080 011 )C°58...0(ycaruccalatoT 1 0.1±S SF% yaledesnopseR 6,5 2s m noituloserD/A 6 51 tib noituloserA/D 11 )daolon(noitpmusnoctnerruC 7 5A m SCITSIRETCARAHCECNAMROFREPLATIGID erusserp.nimtatuptuO 6660 xeHtnuoC )SSF(napselacslluF 2 6666 SCITSIRETCARAHCECNAMROFREPEUGOLANA erusserp.nimtatuptuO 52.0 V )SSF(napselacslluF 2 00.4

Miniature amplified barometric pressure sensors 3/6E / 11641 / A www.sensortechnics.com I²C BUS Introduction The HCA-BARO is capable to generate a digital output signal. The device runs a cyclic program, which will store a corrected pressure value with 15 bit resolution about every 1 ms within the output registers of the internal ASIC. In order to use the sensor for digital signal readout, it should be connected to a bidirectional I²C-bus. According to the I²C-bus specification, the bus is controlled by a master device, which generates the clock signal, controls the bus access and generates START and STOP conditions. The HCA-BARO is designed to work as a slave, hence it will only respond to requests from a master device. Digital I²C interface The HCA-BARO complies with the following protocol (Fig. 1): Bus not busy: During idle periods both data line (SDA) and clock line (SCL) remain HIGH. START condition (S): HIGH to LOW transition of SDA line while clock (SCL) is HIGH is interpreted as START con- dition. START conditions are always generated by the master. Each initial request for a pressure value has to begin with a START condition. STOP condition (P): LOW to HIGH transition of SDA line while clock (SCL) is HIGH determines STOP condition. STOP conditions are always generated by the master. More than one request for the current pressure value can be trans- mitted without generation of intermediate STOP condition. DATA valid (D): State of data line represents valid data when, after START condition, data line is stable for duration of HIGH period of clock signal. Data on line must be changed during LOW period of clock signal. There is one clock pulse per bit of data. Acknowledge (A): Data is transferred in pieces of 8 bits (1 byte) on serial bus, MSB first. After each byte receiving device – whether master or slave – is obliged to pull data line LOW as acknowledge for reception of data. Master must generate an extra clock pulse for this pur- pose. When acknowledge is missed, slave transmitter becomes inactive. It is on master either to send last com- mand again or to generate STOP condition in that case. Slave address: The I²C-bus master-slave concept requires a unique address for each device. The HCA-BARO has a preconfigured slave address (1111000xb). By factory programming it is possible to define a secondary slave address additional to the general one. According to I²C specification 127 different addresses are available. The sensor will then listen to both slave addresses. After generating a START condition the master sends the address byte containing a 7 bit address followed by a data direction bit (R/W). A "0" indicates a transmission from master to slave (WRITE), a "1" indicates a data request (READ). DATA operation: The HCA-BARO starts to send 2 data bytes containing the current pressure value as a 15 bit information placed in the output registers. SDA SCL START condition Data valid Data allowed to change STOP condition R/W Read out of first pressure value Read out of n pressure values (optional) S Data Byte 1 A Data Byte 2Slave Address A A PData Byte 1 generated by master generated by slave S = START condition A = Acknowledge P = STOP condition Data Byte 1 = High Byte (MSB first) Data Byte 2 = Low Byte (LSB last) Fig. 1:I²C bus protocol

Miniature amplified barometric pressure sensors 4/6E / 11641 / A www.sensortechnics.com I²C Interface Parameters retemaraPl obmyS. niM. pyT. xaMt inU levelhgihtupnI 090 01 sVfo%levelwoltupnI 00 1 levelwoltuptuO 01 rotsiserpu-lluP 005 Ω ADS@ecnaticapacdaoL C ADS 004 FpLCS/ADS@ecnaticapactupnI C NI_C2I 01 ycneuqerfkcolcLCS F LCS *0010 04z Hk noitidnocTRATSdnaPOTSneewtebemiteerfsuB t FUB 3.1 sµ ,noitidnocTRATS)detaeper(emitdloHe slupkcolctsrifot t ATS.DH 8.0 LCSfodoirepWOL t WOL 3.1 LCSfodoirepHGIH t HGIH 6.0 noitidnocTRATSdetaeperemitputeS t ATS.US 1 emitdlohataD t TAD.DH 0 emitputesataD t TAD.US 2.0 LCSdnaADShtobfoemitesiR tR 3.0 LCSdnaADShtobfoemitllaF tF 3.0 noitidnocPOTSrofemitputeS t OTS.US 6.0 tHD;STA tSU;DAT tHD;DAT tSU;STA tR tF SCL SDA tHIGH tLOW tSU;STO tBUF tHD;STA SDA SCL Note: Sensortechnics recommends communication speeds of at least 100 kHz (max. 400 kHz). Please contact your nearest Sensortechnics sales office for further information. * recommended Fig. 2:Timing characteristics

Miniature amplified barometric pressure sensors 5/6E / 11641 / A www.sensortechnics.com 12.70 10.704.06 0.46 2.54 HIGH PRESSURE PORT 4.20 1.28 9.501.90 3.70 8 7 6 5 1 2 3 4 4.3 2.5 6.4 niPn oitcennoC 1s V+ 2D NG 3t uoV 4* C/I 5L CS *C/I 8A DS * Internal connection. Do not connect for any reason HCA...H8 SMD single port PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTIONS niPn oitcennoC 1s V+ 2D NG 3t uoV 4* C/I * Internal connection. Do not connect for any reason 10.30 16 12.70 1 2 3 4 0.51 2.54 9.50 21.90 10.70 4.20 3.70 1.90 10.70 0.25 1.45 HIGH PRESSURE PORT 4.3 2.5 6.4 HCA...G8 Single port dimensions in mm third angle projection dimensions in mm third angle projection Top view Top view

Miniature amplified barometric pressure sensors 6/6E / 11641 / A www.sensortechnics.com

ORDERING INFORMATION

Sensortechnics reserve the right to make changes to any products herein. Sensortechnics do not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. Custom specific mechanical or electronic sensor modifications are widely available:

  • 3 V power supply
  • SPI, switching and custom specific outputs
  • Dual inline packages (DIP) ... etc. Please contact your nearest Sensortechnics sales office for further information. seireS egnarerusserP edomerusserP noitarbilaC gnisuoH gnitroP snoitpOA CH 1160 rabm0011...006 A etulosbA R cirtemoraB *G LIS 8 thgiartS 1180 rabm0011...008 H DMS 9 debraB elbaliavaton* tuptuolatigidhtiw :elpmaxE ACH 1160 A R H 8 Sensortechnics PRO services:
  • Extended guarantee period of 2 years
  • Custom product modifications and adaptations even for small quantities
  • Advanced logistics models for supply inventory and short delivery times
  • Technical support through application engineers on the phone or at your site
  • Traceability of each sensor through serial numbers on request
  • No product specification changes without customer notification
  • No product obsolescence without very early prior notice
  • Fastest possible technical response for design and QA engineers
  • Long term product availability for your spares and service needs ... plus other services on request