參數(shù)資料
型號(hào)： TC835CKWTR
元件分類： ADC
英文描述： 1-CH DUAL-SLOPE ADC, PQFP44
封裝： PLASTIC, QFP-44
文件頁(yè)數(shù)： 19/24頁(yè)
文件大?。?/td> 543K
代理商： TC835CKWTR
TC835
DS21478B-page 4
2002 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Positive Supply Voltage ......................................... +6V
Negative Supply Voltage ........................................ -9V
Analog Input Voltage (Pin 9 or 10) ... V+ to V– (Note 2)
Reference Input Voltage (Pin 2) ..................... V+ to V–
Clock Input Voltage ........................................ 0V to V+
Operating Temperature Range................0°C to +70°C
Storage Temperature Range ............. -65°C to +150°C
Package Power Dissipation (TA ≤ 70°C)
28-Pin Plastic DIP ............................ 1.14
44-Pin PQFP .................................... 1.00
64-Pin PQFP .................................... 1.14
*Stresses above those listed under "Absolute Maximum Rat-
ings" 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. Expo-
sure to Absolute Maximum Rating conditions for extended
periods may affect device reliability.
TC835 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA =+25°C, FCLOCK = 200kHz, V+ = +5V, V- = -5V, unless otherwise specified.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Analog
Display Reading with Zero Volt Input
-0.0000
±0.0000 +0.0000
Display Reading
Note 3, Note 4
TCZ
Zero Reading Temperature Coefficient
—
0.5
2
V/°C
VIN =0V, (Note 5)
TCFS
Full-Scale Temperature Coefficient
—
5
ppm/°C
VIN =2V;
(Note 5, Note 6
NL
Nonlinearity Error
—
0.5
1
Count
Note 7
DNL
Differential Linearity Error
—
0.01
—
LSB
Note 7
Display Reading in Ratiometric Operation
+0.9996
+0.9998 +1.0000
Display Reading
VIN =VREF, (Note 3)
±FSE
± Full Scale Symmetry Error (Rollover Error)
—
0.5
1
Count
–VIN =+VIN, (Note 8)
IIN
Input Leakage Current
—
1
10
pA
Note 4
eN
Noise
—
15
—
VP-P
Peak to Peak Value not
Exceeded 95% of Time
Digital
IIL
Input Low Current
—
10
100
AVIN =0V
IIH
Input High Current
—
0.08
10
AVIN =+5V
VOL
Output Low Voltage
—
0.2
0.4
V
IOL =1.6mA
VOH
Output High Voltage;
B1,B2,B4,B8,D1–D5
Busy, Polarity, Overrange,
Underrange, Strobe
2.4
4.4
5
V
IOH =1mA
4.9
4.99
5
V
IOH =10A
fCLK
Clock Frequency
0
200
1200
kHz
Note 10
Note
1:
Functional operation is not implied.
2:
Limit input current to under 100 A if input voltages exceed supply voltage.
3:
Full scale voltage = 2V.
4:
VIN =0V.
5:
0°C
≤ TA ≤ +70°C.
6:
External reference temperature coefficient less than 0.01ppm/°C.
7:
-2V
≤ VIN ≤ +2V. Error of reading from best fit straight line.
8:
|VIN| = 1.9959.
9:
Test circuit shown in Figure 1-1.
10: Specification related to clock frequency range over which the TC835 correctly performs its various functions. Increased
errors result at higher operating frequencies.
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