Microchip Technology TC7129
The TC7129 is a 4-1/2 digit Analog-to-Digital Converter (ADC) that directly drives a multiplexed Liquid Crystal Display (LCD). 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. The TC7129 includes features important to multimeter applications.| Part No. | TC7129 |
|---|---|
| Datasheet | TC7129 Download |
| Manufacturer |  Microchip Technology |
| Description | 4-1/2 Digit Analog-to-Digital Converters |
| Buy | Stock & Price |
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
APPLICATIONS
:● Full-Featured Multimeters
● Digital Measurement Devices Device Selection Table Package Code Pin Layout Package TC7129CPL TC7129CKW TC7129CLW Normal Formed – 40-Pin PDIP 44-Pin PQFP 44-Pin PLCC Temperature Range 0C to +70C 0C to +70C 0C to +70C Typical Application Low Battery
GENERAL DESCRIPTION
: 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.
