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TC7129ILW713 Datasheet(PDF) 3 Page - Microchip Technology |
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TC7129ILW713 Datasheet(HTML) 3 Page - Microchip Technology |
3 / 28 page © 2006 Microchip Technology Inc. DS21459D-page 3 TC7129 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Supply Voltage (V+ to V-) ....................................... 15V Reference Voltage (REF HI or REF LO) ........ V+ to V– Input Voltage (IN HI or IN LO) (Note 1).......... V+ to V– VDISP .......................................... V+ to (DGND – 0.3V) Digital Input (Pins 1, 2, 19, 20, 21, 22, 27, 37, 39, 40) .......................... DGND to V+ Analog Input (Pins 25, 29, 30) ....................... V+ to V– Package Power Dissipation (TA ≤ 70°C) Plastic DIP ..................................................... 1.23W PLCC ............................................................. 1.23W Plastic QFP .................................................... 1.00W Operating Temperature Range ............... 0°C to +70°C Storage Temperature Range .............. -65°C to +150°C *Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TC7129 ELECTRICAL SPECIFICATIONS Electrical Characteristics: V+ to V– = 9V, VREF = 1V, TA = +25°C, fCLK = 120 kHz, unless otherwise indicated. Pin numbers refer to 40-pin DIP. Symbol Parameter Min Typ Max Unit Test Conditions Input Zero Input Reading –0000 0000 +0000 Counts VIN = 0V, 200 mV scale Zero Reading Drift — ±0.5 — μV/°C VIN = 0V, 0°C < TA < +70°C Ratiometric Reading 9996 — 10000 Counts VIN = VREF = 1000 mV, Range = 2V Range Change Accuracy 0.9999 1.0000 1.0001 Ratio VIN = 1V on High Range, VIN = 0.1V on Low Range RE Rollover Error — 1 2 Counts VIN– = VIN+ = 199 mV NL Linearity Error — 1 — Counts 200mV Scale CMRR Common Mode Rejection Ratio — 110 — dB VCM = 1V, VIN = 0V, 200 mV scale CMVR Common Mode Voltage Range — (V-) + 1.5 —V VIN = 0V — (V+) – 1 — V 200 mV scale eN Noise (Peak-to-Peak Value not Exceeded 95% of Time) — 14 — μVP-P VIN = 0V 200 mV scale IIN Input Leakage Current — 1 10 pA VIN = 0V, pins 32, 33 Scale Factor Temperature Coefficient — 2 7 ppm/°C VIN = 199 mV, 0°C < TA < +70°C External VREF = 0 ppm/°C Note 1: Input voltages may exceed supply voltages, provided input current is limited to ±400 μA. Currents above this value may result in invalid display readings, but will not destroy the device if limited to ±1 mA. Dissipation ratings assume device is mounted with all leads soldered to printed circuit board. |
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