TC7129CKW More Semiconductors - ICs by Microchip Technology

4-1/2 Digit ADC with On-Chip LCD Drivers


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, low-power 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 10µV per count. The TC7129 includes features important to multimeter applications. It detects and indicates low-battery condition. A continuity output drives an annunciator on the display, and can be used with an external driver to sound an audible alarm. Overrange and underrange outputs and a range-change input provide the ability to create auto-ranging instruments. For snapshot readings, the TC7129 includes a latch-and-hold input to freeze the present reading. This combination of features makes the TC7129 the ideal choice for full-featured multimeter and digital measurement applications.

Where to Buy

Prices starting from US$14.21

Distributor Stock
Logo for Newark
Newark
from US$19.05
No stock
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Logo for Microchip Technology
Microchip Technology
from US$14.21
2,259
in stock
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Logo for Avnet America
Avnet America
from US$18.49
-
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Logo for RS Americas
RS Americas
from US$20.74
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Avnet Silica
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Features

Count Resolution: ±19,999
Resolution on 200 mV Scale: 10 µV
True Differential Input and Reference
Low Power Consumption: 500 µA at 9V
Direct LCD Driver for 4-1/2 Digits
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

Specifications

Pins | Packaging 44 | MQFP
Temp Range 0C to +70C
Packing Media Tray (96)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.4854
Shipping Weight (kg) 3.895833
Lead Count 44
Package Type MQFP
Package Width or Size 10x10x2mm
Soldering Composition Matte Tin

Alternative Descriptions

4-1/2 Digit A/D w/LCD Driver | Microchip Technology
Ic,a/D Converter,single,4 1/2-Digit,cmos,qfp,44Pin Rohs Compliant: Yes |Microchip TC7129CKW | Newark Electronics
ADC Single Dual Slope 4 1/2Digit LCD 44-Pin MQFP Tray | Avnet America
Microchip TC7129CKW, Serial ADC, Differential Input, 44-Pin PQFP | Microchip Technology Inc. TC7129CKW | RS Americas


Frequently Asked Questions

Where can I find additional details, specifications and documents for a TC7129CKW?

Additional datasheets, footprints and schematics for TC7129CKW are listed on our Part Details page. You can also find images and similar parts to TC7129CKW on this page.

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What category does TC7129CKW fall under?

The TC7129CKW is listed under Semiconductors - ICs > More Semiconductors - ICs.

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Is the TC7129CKW RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for TC7129CKW have stock available?

Authorised distributors including Microchip Technology, Newark Electronics, Avnet America, RS Americas and Avnet Silica have stock available or on a lead time for TC7129CKW.

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