TC7129 - Microchip Technology

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2002-2012 Microchip Technology 1TC7129Features: Count Resolution: 19,999 Resolution on 200 mV Scale: 10 V True Differential Input and Reference Low Power Consumption: 500 A at 9V Direct LCD Driver for 4-1/2 Digits, Decimal Points,Low Battery Indicator, and Continuity Indicator Overrange and Underrange Outputs Range Select Input: 10:1 High Common Mode Rejection Ratio: 110 dB External Phase Compensation Not RequiredApplications: Full-Featured Multimeters Digital Measurement DevicesDevice Selection TableGeneral Description:The TC7129 is a 4-1/2 digit Analog-to-Digital Converter(ADC) that directly drives a multiplexed Liquid CrystalDisplay (LCD).

TC7129 DS21459E-page 4 2002-2012 Microchip Technology Inc. Power VCOM Common Voltage 2.8 3.2 3.5 V V+ to pin 28 Common Sink Current — 0.6 — mA Common = +0.1V Common Source Current — 10 — A Common = -0.1V