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See Technical Specifications

TC7129CKW

800 micro-amp 7-section 6V-12V PQFP-44(10x10) LCD Drivers ROHS

Manufacturer:

Microchip
Mfr.Part #:

TC7129CKW
Datasheet:

TC7129CKW Datasheet (PDF)
Number of Digits:

4.5 Digit
Number of Segments:

7 Segment
Maximum Clock Frequency:

360 kHz
Supply Current - Max:

1.3 mA
EDA/CAD Models:

Request Free CAD Models for TC7129CKW

Email: [email protected]

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Tel: +852 95804164

TC7129CKW 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, 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.

Key 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

Product Category	LCD Drivers	Number of Digits	4.5 Digit
Number of Segments	7 Segment	Maximum Clock Frequency	360 kHz
Supply Current - Max	1.3 mA	Pd - Power Dissipation	1 W
Series	TC7129	Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C	Mounting Style	SMD/SMT
Height	2 mm	Length	10 mm
Moisture Sensitive	Yes	Operating Supply Voltage	15 V
Product	LCD Drivers	Product Type	LCD Drivers
Factory Pack Quantity	96	Subcategory	Driver ICs
Width	10 mm	Unit Weight	0.017588 oz