The ICL7135 is a 4.5 digital volt meter chip using the integrating method. The input range is +/-1.9999V with 100 uV sensitivity. The ICL7135 provides a multiplexed BCD output and strobe signal (STRB). The microcontroller generates a 125kHz clock for both DVM chips using timer2. When the conversion is completed, the DVM chip generates strobe ...
Second Source to Teledyne TSC7135, Intersil ICL7135, Maxim ICL7135, and Siliconix Si7135; CMOS Technology; The ICL7135C and TLC7135C converters are manufactured with Texas Instruments highly efficient CMOS technology. These 4 1/2-digit, dual-slope-integrating, analog-to-digital converters (ADCs) are designed to provide interfaces to both a ...