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TC7129 Datasheet 4-1/2 Digit Analog-to-digital Converters

Manufacturer: Microchip Technology

Overview: TC7129 4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD.

General Description

: The TC7129 is a 4-1/2 digit Analog-to-Digital Converter (ADC) that directly drives a multiplexed Liquid Crystal Display (LCD).

Fabricated in high-performance, lowpower CMOS, the TC7129 ADC is designed specifically for high-resolution, battery-powered digital multimeter applications.

The traditional dual-slope method of A/D conversion has been enhanced with a successive integration technique to produce readings accurate to better than 0.005% of full-scale and resolution down to 10 V per count.

Key Features

  • 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 Required.

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TC7129 Distributor