參數(shù)資料
型號(hào): TC820C/LW
元件分類: ADC
英文描述: 1-CH 3-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 30/34頁(yè)
文件大?。?/td> 435K
代理商: TC820C/LW
2007 Microchip Technology Inc.
DS21476C-page 5
TC820
Scale Factor Temperature
Coefficient
TCFS
——
VIN = 399 mV
1
5
ppm/°C
0°C
≤ T
A ≤ +70°C
5
ppm/°C
-40°C
≤ T
A ≤ +85°C
Ext Ref = 0 ppm/°C
Supply Current
IS
—1
1.5
mA
VIN = 0V
Peak-to-Peak Backplane
Drive Voltage
4.25
4.7
5.3
V
VS = 9V
VDISP = DGND
Buzzer Frequency
5
kHz
FOSC = 40 kHz
Counter TIme-Base Period
1
Second
FOSC = 40 kHz
Low Battery Flag Voltage
6.7
7
7.3
V
VDD to VSS
Input Low Voltage
VIL
——
DGND + 1.5
V
Input High Voltage
VIH
VDD – 1.5
V
Output Low Voltage, UR, OR
Outputs
VOL
VDD – 1.5
DGND + 0.4
V
IL = 50 μA
Control Pin Pull-down Current
5
A
VIN = VDD
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: Unless otherwise specified, VSS = 9V, TA = +25°C
Parameter
Sym
Min
Typ
Max
Units
Test Conditions
Note
1:
Input voltages may exceed the supply voltages provided that input current is limited to ±100 A. Current above this
value may result in invalid display readings, but will not destroy the device if limited to ±1 mA.
2:
Dissipation ratings assume device is mounted with all leads soldered to printed circuit board.
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