TC7129
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.
Features
| Parameter
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Documents
| TC7129 Data Sheet | Data Sheets | 02/05/2013 | 426KB | |
| Analog & Interface Guide (Volume 2) | Brochures | 10/11/2005 | 1067KB | |
| Quick Guide to Microchip Development Tools | Brochures | 10/15/2014 | 11223KB | |
| Analog & Interface Product Selector Guide | Product Line Card | 03/21/2016 | 4116KB |
Ordering Information
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|---|---|---|---|---|---|---|---|---|
| TC7129CKW | 44 | MQFP | 0C to +70C | TRAY | 15.84 | 13.20 | 12.00 | 10.00 | 9.23 |
| TC7129CKW713 | 44 | MQFP | 0C to +70C | T/R | 15.84 | 13.20 | 12.00 | 10.00 | 9.23 |
| TC7129CLW | 44 | PLCC | 0C to +70C | TUBE | 19.32 | 16.10 | 14.64 | 12.20 | 11.26 |
| TC7129CPL | 40 | PDIP | 0C to +70C | TUBE | 14.04 | 11.70 | 10.64 | 8.87 | 8.18 |
Similar Devices
| Product | Display Type | Supply Voltage (V) | Resolution (Digits) | Price5K |
|---|---|---|---|---|
| TC7106 | LCD | 9 | 3.5 | $2.83 |
| TC7106A | LCD | 9 | 3.5 | $2.80 |
| TC7107 | LED | 5 | 3.5 | $2.46 |
| TC7107A | LED | 5 | 3.5 | $2.64 |
| TC7116 | LCD | 9 | 3.5 | $3.33 |
| TC7116A | LCD | 9 | 3.5 | $3.56 |
| TC7117 | LED | 5 | 3 | $4.75 |
| TC7117A | LED | 5 | 3 | $3.71 |
| TC7126 | LCD | 9 | 3.5 | $3.57 |
| TC7126A | LCD | 9 | 3.5 | $4.61 |
| TC7129 | LCD | 9 | 4.5 | $7.60 |
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|---|---|---|---|---|---|---|---|---|
| TC7129CPL | 6.500000 | 10.600000 | 40 | PDIP | .600in | Matte Tin | e3 |  |  |
| TC7129CLW | 2.375500 | 3.703704 | 44 | PLCC | - | Matte Tin | e3 | | |
| TC7129CKW | 0.485400 | 3.895833 | 44 | MQFP | 10x10x2mm | Matte Tin | e3 | | |
| TC7129CKW713 | 0.485400 | 1.296667 | 44 | MQFP | 10x10x2mm | Matte Tin | e3 | | |
- TC7129 Data Sheet TC7129
- Analog & Interface Guide (Volume 2) MCP23S08
- Quick Guide to Microchip Development Tools ENC28J60
- Analog & Interface Product Selector Guide ENC624J600
