參數(shù)資料
型號(hào)： TC818ACBUTR
元件分類： ADC
英文描述： 1-CH DUAL-SLOPE ADC, PQFP64
封裝： PLASTIC, QFP-64
文件頁(yè)數(shù)： 19/24頁(yè)
文件大?。?/td> 528K
代理商： TC818ACBUTR
TC818A
DS21475C-page 4
2005 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage .......................................................15V
Analog Input Voltage ..................................VCC to VSS
Reference Input Voltage..............................VCC to VSS
Voltage at Pin 43 ................................. Common ±0.7V
Power Dissipation ............................................800mW
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.
TC818A ELECTRICAL SPECIFICATIONS
Electrical Characteristics: VA = 9V, TA = +25°C, unless otherwise specified.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Zero Input Reading
-0000
0000
+0000
Digital
Reading
200mV Range without 10M
Ω
Resistor
-0001
—
+0001
Digital
Reading
200mV Range with 10M
Ω
Resistor
-0000
0000
+0000
Digital
Reading
20mA and 200mA Range
RE
Rollover Error
—
±1
Counts
200mV Range without 10M
Ω
Resistor
—
±3
200mV Range with 10M
Ω
Resistor
—
±1
20mA and 200mA Range
NL
Linearity Error
—
±1
Count
Best Case Straight Line
IIN
Input Leakage Current
—
10
pA
EN
Input Noise
—
20
—
μVP-P
BW = 0.1 to 10Hz
AC Frequency Error
—
±1
—
%
40 to 500Hz
—
±5
—
%
Error 40 to 2000Hz
Open Circuit Voltage for Ohm
Measurements
—
570
660
mV
Excludes 200
Ω Range
Open Circuit Voltage for LO Ohm
Measurements
—
285
350
mV
Excludes 200
Ω Range
VCOM
Analog Common Voltage
2.8
3
3.3
V
(VCC - VCOM)
VCTC
Common Voltage Temperature
Coefficient
—
50
ppm/°C
Display Multiplex Rate
—
100
—
Hz
VIL
Low Logic Input
—
1
μA
20mA, AC, I, LOW
Ω, HOLD
Range, -MEM, OHMs
(Relative to DGND, Pin 58)
Logic 1 Pull-up Current
—
25
—
V
20mA, AC, I, LOW
Ω, HOLD
Range, -MEM, OHMs
(Relative to DGND, Pin 58)
VOL
Low Logic Output
—
DGND +0.1
—
V
ANNUNC, DEINT: IL = 100μA
VOH
High Logic Output
—
VCC - 0.1
—
V
ANNUNC, DEINT: IL = 100μA
Buzzer Drive Frequency
—
4
—
kHz
Low Battery Flag Voltage
6.3
6.6
7
V
VCC to VSSA
Operating Supply Current
—
0.8
1.5
mA
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