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