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TC7129CLW713 датащи(PDF) 3 Page - Microchip Technology

номер детали TC7129CLW713
подробное описание детали  4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC7129CLW713 датащи(HTML) 3 Page - Microchip Technology

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© 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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