Order this document by XHS1100/D SEMICONDUCTOR TECHNICAL DATA HUMIDITY SENSOR (0 to 100% RH) Based on a unique capacitive cell, this relative humidity sensor is designed for high volume, low cost applications such as office automation, automotive air cabin monitoring, home appliances and industrial process control systems. AA AA Main Features * Full Interchangeability with No Calibration Required * Instantaneous Desaturation After Long Periods in Saturation Phase * Compatible with Automated Assembly Processes, including water immersion * Metal Package for Through Hole Applications * High Reliability and Long Term Stability * Patented Solid Polymer Structure * Suitable for Linear Voltage or Frequency Output Circuitry * Fast Response Time -- 10 Seconds Typical MAXIMUM RATINGS (TA = 23C unless otherwise noted) Rating Symbol Operating Temperature (See Chart 1) Storage Temperature Supply Voltage Humidity Operating Range (See Chart 1) Value Unit TA Tstg *40 to 100 *40 to +125 VS RH 10 Vac 0 to 100 %RH C C ELECTRICAL CHARACTERISTICS (TA = 23C unless otherwise noted) Characteristic Symbol Min Humidity Measuring Range RH 5.0 -- 97 % Supply Voltage -- 5.0 7.0 Vdc Nominal Capacitance (at 55%RH) VS C 175 180 185 pF Temperature Coefficient of Capacitance TCc -- 0.04 -- pF/C %RH/C 2.19 2.21 2.23 %RH/pF t -- 10 -- s Humidity Hysteresis -- -- +/ 1.5 -- %RH Long Term Stability -- -- 0.5 -- %RH/yr Response Time (33 to 76%RH, flow rate 1m/sec) Linearity (10 to 97%RH), theoretical line, Fig. 1(2) t -- -- -- Linearity (10 to 97%RH), straight line, Fig. 1(1) -- Leakage Current Ix Sensitivity Recovery Time (after 150h in 100%RH) Typ * Max Unit 10 s -- %RH -- * +/*3 -- +/ 1 -- %RH -- -- 1.0 nA NOTES: 1. Linearity output deviation from a straight line relationship with relative humidity, using end point method, with Figure 1 generated using Circuit 1 "Schematic for Frequency Output''. 2. Linearity output deviation utilizing least squares fit to the graph in Figure 1 generated using Circuit 1 "Schematic for Frequency Output''. Senseon is a trademark of Motorola, Inc. This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. Motorola Sensor Device Data Motorola, Inc. 1997 1 XHS1100 160 140 RH (%) 120 % RH g/m3 100 80 60 40 20 100 90 80 70 60 50 40 30 20 10 0 -10 -20 -40 0 TA (_C) Chart 1. Operating Range 2 Motorola Sensor Device Data XHS1100 VCC 8 4 7 3 FOUT NC 555 6 2 5 1 R1 = 470 K R2 = 909 K R1 MHS1100 R2 GND Circuit 1. Schematic for Frequency Output 7300 7100 FREQUENCY (Hz) 6900 6700 6500 6300 LINEARITY - STRAIGHT LINE FIT 6100 5900 5700 10 20 30 40 50 60 RELATIVE HUMIDITY (RH) 70 80 90 100 Theoretical Curve: F= 7298,9 - 14,579*RH + 0.07781*RH2 - 0,00007507*RH3 F: Frequency in Hz RH: Relative Humidity in % Reference point at 6600 Hz = 55% RH Figure 1. Frequency vs. Humidity Motorola Sensor Device Data 3 XHS1100 Vout = 0,02*RH + 1,5 V in Volts, with RH in % VCC R8 R2 R1 R11 D1 R10 R3 R6 R5 C3 VOUT C1 D2 R4 R7 C4 R9 C2 MHS1100 GND All resistors 1% D1 = 1N4148 or similar D2 = 1,4 V diode (BZV86 or dual series BAV99) R1 = 562 K R2 = 49,9 K R3 = R4 = 90,9 K R5 = 100 K R6 = 51,1 K R7 = 178 K R8 = 49,9 K R9 = 121 K R10 = 562 K R11 = 267 K C1 = 120 pF (1%) C2 = 0,1 F C3 = 2,2 F C4 = 2,2 F IC = Cmos OP amp (TLC2272) Circuit 2. Schematic for Linear Voltage Output with Rail-to-Rail Op Amp 5 VOUT IN VOLTS 4 3 2 1 0 0 50 100 RH in % Figure 2. 4 Motorola Sensor Device Data XHS1100 Vout = 0,01*RH + 1,5 V in Volts, with RH in % VCC R1 R6 R2 IC1 R7 R8 R10 C4 R5 C3 VOUT T1 IC1 R4 R3 C2 C1 R9 MHS1100 GND All resistors 1% R1 = 383 K R2 = 100 K R3 = 66,5 K R4 = 100 K R5 = 499 K R6 = 30,1 K R7 = 1 M R8 = 26,7 K R9 = 20 K R10 = 154 K T1 = MMBT3904 C1 = 220 pF (1%) C2 = 47 F C3 = 4,7 F C4 = 2,2 F IC = LM358 or eq Circuit 3. Schematic for Linear Voltage Output with Low Cost Op Amp 5 VOUT IN VOLTS 4 3 2 1 0 0 50 100 RH in % Figure 3. Motorola Sensor Device Data 5 XHS1100 A B F C E D DIM A B C D E F G H J K MIN MAX 9.02 9.29 8.01 8.50 3.65 3.90 12.70 19.05 0.35 0.45 0.50 0.90 45_BSC 0.74 1.01 0.72 0.86 5.08 BSC DIMENSIONS IN MILLIMETERS K G H 6 J Motorola Sensor Device Data XHS1100 Motorola reserves the right to make changes without further notice to any products herein. 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Motorola Sensor Device Data 7 XHS1100 Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1-303-675-2140 or 1-800-441-2447 JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. 81-3-5487-8488 Customer Focus Center: 1-800-521-6274 Mfax: RMFAX0@email.sps.mot.com - TOUCHTONE 1-602-244-6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, Motorola Fax Back System - US & Canada ONLY 1-800-774-1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 - http://sps.motorola.com/mfax/ HOME PAGE: http://motorola.com/sps/ 8 XHS1100/D Motorola Sensor Device Data