CHIPCAP-R-50-TUBE

GE Sensing & Inspection Technologies ChipCap The Fully Calibrated Humidity and Temperature Solution Features • Simultaneous relative humidity and temperature outputs • Precision accuracy ±2% RH, ±0.6°C • Resolution 0.4% RH • Factory selectable analog or digital outputs • Output configurations available: Voltage 0V to 1V 10 to 90% of VDD ZACwireTM digital output (8-bit humidity) • Factory calibrated, ready to use • Designed for automated assembly • Supply voltage: 3.0V to 5.5V • Low quiescent current: 0.5mA@5V, 25°C • SOP 14 package Applications • HVAC Controls ³ Humidistats ³ Enthalpy control ³ Indoor air quality (IAQ) ³ Humidifiers ³ Dehumidifiers g • Instrumentation ³ Portable instruments ³ Data loggers and recorders ³ Weather stations • Medical ³ Nebulizers ³ Oxygen air ³ CPAP/Sleep apnea devices • Automotive ³ Cabin climate control ³ Defrost control • Appliances and white goods • OEM assemblies available ChipCap³The Fully Calibrated Humidity and Temperature Sensor Small, Integrated Package for Automated Assembly The ChipCap series humidity sensor by GE oȺers a new standard in the field of accurate relative humidity measurement. Based on a capacitive polymer sensing technology, this device oȺers signal conditioning and temperature compensation for a single SoC (SystemonChip) solution. The device is very simple to use, fully tested and calibrated for accuracy on delivery³no further calibration is needed. ChipCap can be incorporated into an assembly or finished sensor to meet customer specifications. The measurement is accurate to ±2% from 20% to 80% RH and ±3% across the entire humidity range. Long term stability is excellent. The temperature accuracy is ±1°C from 0°C to +70°C. Dual outputs provide humidity and temperature as 0V to 1V, or 0.5V to 4.5V ratiometric or available with digital output (the ZACwire one-wire interface). ChipCap contains the entire signal conditioning circuitry on a single silicon die. The sensor and circuitry are integrated into a small footprint SoC to save board real estate. ChipCap is shipped in tube packaging for automated insertion on surface mount technology (SMT) circuit boards. Tape and reel packaging is available upon request for high volume applications. Accurate, Repeatable Humidity and Temperature Measurement Digital Interface V supply 3V to 5.5V μC ChipCap provides either analog or digital interfaces on a single, 5VDC-powered chip. The package is highly resistant to chemical vapors and other contaminants. ChipCap sensors are precalibrated and oȺer high interchangeability. They also fully recover from condensing environments and may be used across a wide range of both temperature and relative humidity ranges. NC NC 7 9 NC NC 6 10 NC NC 5 11 V+ 12 NC GND 4 NC 3 13 NC NC 2 14 OUT-RH NC 1 RH Sensor ChipCap 0.1μ Gnd Analog Interface V supply ChipCap relative humidity sensors change capacitance in direct proportion to ambient relative humidity. An internal solid-state band gap provides temperature measurement. This integral design reduces overall cost and complexity and improves reliability. 3V to 5.5V 8 NC 9 NC 10 NC 11 V+ 12 NC 7 NC 6 NC 5 GND 4 NC NC 3 13 NC NC 2 14 OUT-RH NC 1 RH Output 9.5 ±0.07 mm 8 RH Sensor ChipCap 0.1μ 6.00 ±0.02 mm Temp Output Gnd 3.22 ±0.10 mm Linear mode: %RH = Vout * 100 Tc = Vout * 200 -50 Ratiometric mode: %RH = ((Vout - (0.1 * Vsupply))/(0.8 * Vsupply)) * 100 Tc = ((Vout - (0.1 * Vsupply))/(0.8 * Vsupply)) * 200 - 50 Power Supply ChipCap Specifications Reverse Polarity Protection Relative Humidity 12.5 VDC, 100ƄA (15VDC, 60s) RH Sensor Voltage Supply Planar Capacitive Polymer 3 to 5.5 VDC RH Range Current Supply 0 to 100% RH 500 microamps @ 5 VDC, 25°C RH Accuracy @ 25°C Outputs ±2% from 20% to 80% ±3% from 0% to 20% and 80% to 100% RH Voltage Output (Ratiometric) Vout = (Vsupply/5)(0.5+(.04*RH)); 0.5 to 4.5V ratiometric; 5VDC nom. RH Resolution 0.4% RH RH Voltage Output (Linear, 0-1V) Temperature Vout = 0.01(RH) Temperature Sensor RH Digital Output Integral band gap PTAT Manchester 8-bit encoded Temperature Scale Temperature Voltage Output (Ratiometric) -50°C to 150°C Vout = (Vsupply/5)(1.5 + (.02*T°C)); 0.5 to 4.5V ratiometric; 5VDC nom. Temperature Accuracy ±0.6°C at 25°C (see graph below) Temperature Voltage Output (Linear) Vout = (0.005T °C) +0.25 Temperature Resolution 0.2°C Temperature Digital Output Manchester 10-bit encoded 4.0 3.0 Maximum Error 2.0 Error (C) 1.0 Typical Error 0.0 -40 -20 0 25 -1.0 -2.0 Maximum Error -3.0 -4.0 Temperature 50 70 85 Environmental Ordering Information Operating Temperature Range Model Part Description ChipCap-L ChipCap RH and Temperature Sensor, 0-1VDC Linear Output ChipCap-R ChipCap RH and Temperature Sensor, 0.5- 4.5VDC Ratiometric Output (5VDC Nominal) ChipCap-D ChipCap RH and Temperature Sensor, Digital Output -40°C to 85°C Operating RH Range 0 to 100 % RH, non-condensing - Packaging - Packaging SOP-14, SMD Soldering IR Solder Reflow, 260°C, 10 sec Pin Connection 4 Pin; +V, Gnd, RHout, Tout Absolute Maximum Ratings Symbol Parameter Min. Max. Units Vdd DC Supply Voltage -0.3 6 V Vio Voltage at all Analog and Digital I/O pins -0.3 Vdd + 0.3 V Ta Ambient Temperature (operation) -50 -40 150 85 °C °C Tstrg Storage Temperature -55 150 °C Tj Junction Temperature -55 160 °C Notes ASIC RH Sensor Recommended Operation Conditions Symbol Parameter Min. Type Max. Units Vdd Analog DC Supply 3 5 5.5 V Idd Supply Current 550 ƄA Vss Analog Ground 0.0 V To Ambient Temperature -40 27 85 °C Cvdd External Capacitance between Vdd and Vss 100 220 470 nF CLD Digital Output Load (only capacitive, no resistive) 100 pF CLA Analog Output Load Capaictance 5 nF RLA Analog Output Load Resistance g 5 Notes 25°C KŸ www.gesensinginspection.com 920-426B © 2008 General Electric Company. All Rights Reserved. Specifications are subject to change without notice. GE is a registered trademark of General Electric Company. 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