The RE46C112 is an ionization type smoke detector IC. It is intended for applications using ionization type chambers to detect smoke. When enabled, VOUT is ¼ of either the DETECT input or VDD depending on the status of the SELECT input. When the Select input is allowed to float the circuit is in the low current mode with only the guard amplifier enabled. Utilizing low power CMOS technology the RE46C112 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217.
Parameter Name Value
Microprocessor Compatible Output True
Output Options Vout 1/4 of Vdd or Vout 1/4 of Detect Input
Typical Applications 3.0V and 3.3V Microprocessor
Operating Temperature Range (°C) -10C to 60C
Features
Guard Outputs for Ion Detector Input
± 0.75pA Detect Input Current
Microprocessor A/D Compatible Analog Output
Low Quiescent Current Consumption (<10uA)
Available in 8L PDIP or 8L N SOIC
2000V ESD Protection (HBM)
Available in Standard Packaging or RoHS Compliant Pb Free Packaging
