參數資料
型號： TC7135C/LI713
元件分類： ADC
英文描述： 1-CH 4-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC28
封裝： PLASTIC, LCC-28
文件頁數： 22/28頁
文件大小： 443K
代理商： TC7135C/LI713
2007 Microchip Technology Inc.
DS21460D-page 3
TC7135
1.0
ELECTRICAL SPECIFICATIONS
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 PDIP .......................................................... 1.14
Ω
28-Pin PLCC ......................................................... 1.00
Ω
44-Pin MQFP
..........................................................................
64-Pin MQFP ........................................................ 1.14
Ω
Notice: 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.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, TA = +25°C, FCLOCK = 120 kHz, V+ = +5V, V- = -5V.
(see Functional Block Diagram).
Parameters
Sym
Min.
Typ.
Max.
Units
Conditions
Analog
Display Reading with Zero Volt
Input
-0.0000
±0.0000
+0.0000
Display Reading
Zero Reading Temperature
Coefficient
TCZ
—
0.5
2
V/°C
VIN = 0V, (Note 4)
Full Scale Temperature
Coefficient
TCFS
—
5
ppm/°C
VIN = 2V,
Nonlinearity Error
NL
—
0.5
1
Count
Differential Linearity Error
DNL
—
0.01
—
LSB
Display Reading in Ratiometric
Operation
+0.9995
+0.9999
+1.0000
Display Reading
VIN = VREF, (Note 2)
± Full Scale Symmetry Error
(Rollover Error)
±FSE
—
0.5
1
Count
-VIN = +VIN, (Note 7)
Input Leakage Current
IIN
—
1
10
pA
Noise
eN
—15
—
VP-P
Peak-to-Peak Value not
Exceeded 95% of Time
Digital
Input Low Current
IIL
—
10
100
A
VIN = 0V
Input High Current
IIH
—0.08
10
A
VIN = +5V
Output Low Voltage
VOL
—
0.2
0.4
V
IOL = 1.6 mA
Output High Voltage;
B1, B2, B4, B8, D1 –D5
Busy, Polarity, Overrange,
Underrange, Strobe
VOH
2.4
4.4
5
V
IOH = 1 mA
4.9
4.99
5
V
IOH = 10 A
Clock Frequency
FCLK
0
200
1200
kHz
Note
1:
Limit input current to under 100 A if input voltages exceed supply voltage.
2:
Full-scale voltage = 2V
3:
VIN = 0V
4:
30°C
≤ T
A ≤ +70°C
5:
External reference temperature coefficient less than 0.01 ppm/°C.
6:
-2V
≤ V
IN ≤ +2V. Error of reading from best fit straight line.
7:
IVIN| = 1.9959
8:
Specification related to clock frequency range over which the
TC7135 correctly performs its various functions.
Increased errors result at higher operating frequencies.
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