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参数资料
| 型号： | TC7135CLIRT |
| 元件分类： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, ACCESS, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 9/16页 |
| 文件大小： | 217K |
| 代理商： | TC7135CLIRT |
2
TC7135
4-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTER
TC7135-10 9/27/99
ELECTRICAL CHARACTERISTICS: TA = +25°C, fCLOCK = 120kHz, V+ = +5V, V– = –5V (Figure 1)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Analog
Display Reading With
Notes 2 and 3
–0.0000
±0.0000
+0.0000
Display
Zero Volt Input
Reading
TCZ
Zero Reading Temperature
VIN = 0V
—
0.5
2
V/°C
Coefficient
Note 4
TCFS
Full-Scale Temperature
VIN = 2V
—
5
ppm/
°C
Coefficient
Notes 4 and 5
NL
Nonlinearity Error
Note 6
—
0.5
1
Count
DNL
Differential Linearity Error
Note 6
—
0.01
—
LSB
Display Reading in
VIN = VREF
+0.9996
+0.9999
+1.0000
Display
Ratiometric Operation
Note 2
Reading
±FSE
± Full-Scale Symmetry
–VIN = +VIN
—
0.5
1
Count
Error (Roll-Over Error)
Note 7
IIN
Input Leakage Current
Note 3
—
1
10
pA
VN
Noise
Peak-to-Peak Value Not
—
15
—
VP-P
Exceeded 95% of Time
Digital
IIL
Input Low Current
VIN = 0V
—
10
100
A
IIH
Input High Current
VIN = +5V
—
0.08
10
A
VOL
Output Low Voltage
IOL = 1.6mA
—
0.2
0.4
V
VOH
Output High Voltage
B1, B2, B4, B8, D1–D5
IOH = 1mA
2.4
4.4
5
V
Busy, Polarity, Overrange,
IOH = 10A
4.9
4.99
5
V
Underrange, Strobe
fCLK
Clock Frequency
Note 8
0
120
1200
kHz
Power Supply
V+
Positive Supply Voltage
4
5
6
V
V–
Negative Supply Voltage
–3
–5
–8
V
I+
Positive Supply Current
fCLK = 0Hz
—
1
3
mA
I–
Negative Supply Current
fCLK = 0Hz
—
0.7
3
mA
PD
Power Dissipation
fCLK = 0Hz
—
8.5
30
mW
NOTES:
1. Limit input current to under 100
A if input voltages exceed supply voltage.
2. Full-scale voltage = 2V.
3. VIN = 0V.
4. 0
°C ≤ TA ≤ +70°C.
5. External reference temperature coefficient less than 0.01 ppm/
°C.
6. –2V
≤ VIN ≤ +2V. Error of reading from best fit straight line.
7. |VIN| = 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.
ABSOLUTE MAXIMUM RATINGS* (Note 1)
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 +160°C
Lead Temperature (Soldering, 10 sec) ................. +300
°C
Package Power Dissipation (TA ≤ 70°C)
PDIP ................................................................. 1.14W
PLCC ................................................................ 1.00W
PQFP ................................................................ 1.14W
*Static-sensitive device. Unused devices must be stored in conductive
material to protect them from static discharge and static fields. Stresses
above those listed under "Absolute Maximum Ratings" may cause perma-
nent 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 operational sections of the specifications is not implied.
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