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General Description

The TC818A is an integrating analog-to-digital converter (ADC) with a 3-1/2 digit numeric LCD driver, automatic ranging, and single 9V battery operation. The numeric display provides 0.05 resolution and a full set of annunciators that spell out the TC818As many operating modes.

Features

? Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display

? Annunciator Outputs Permit Customizing of LCD

? Auto-Range Operation for AC and DC Voltage and Resistance Measurements

? Two User Selected AC/DC

? Current Ranges: 20mA and 200mA

? 22 Operating Ranges: 9 DC/AC Voltage

? 4 AC/DC Current

? 9 Resistance and Low Power Ohms

? Display Hold Function

? 3-1/2 Digit Resolution in Auto-Range Mode: 1/2000

? Extended Resolution in Manual Range Mode: 1/3000

? Internal AC-to-DC Conversion Op Amp

? Triplex LCD Drive for Decimal Points, Digits,

? Bar Graphs, and Annunciators

? Continuity Detection and Piezoelectric Transducer Driver

? Low Drift Internal Reference: 75ppm/°C

? 9V Battery Operation: 10mW

? Low Battery Detection and LCD Annunciator