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参数资料
| 型号： | TC7136CLW |
| 元件分类： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, ACCESS, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 7/14页 |
| 文件大小： | 165K |
| 代理商： | TC7136CLW |
2
TC7136
TC7136A
LOW POWER, 3-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTERS
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (V+ to V–) ............................................15V
Analog Input Voltage (Either Input) (Note 1) ........ V+ to V–
Reference Input Voltage (Either Input) ................. V+ to V–
Clock Input ...................................................... TEST to V+
Package Power Dissipation (TA ≤ 70°C) (Note 2)
Plastic DIP ........................................................1.23W
Plastic Quad Flat Package ...............................1.00W
PLCC ................................................................ 1.23W
Operating Temperature Range
C Devices .............................................. 0
°C to +70°C
I Devices ............................................ –25
°C to +85°C
Storage Temperature Range ................. –65
°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300
°C
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices 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.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ELECTRICAL CHARACTERISTICS: VS = 9V, fCLK = 16 kHz, and TA = +25°C, unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
Input
Zero Input Reading
VIN = 0V
– 000.0
±000.0
+000.0
Digital
Full Scale = 200 mV
Reading
Zero Reading Drift
VIN = 0V, 0°C ≤ TA ≤ +70°C
—
0.2
1
V/°C
Ratiometric Reading
VIN = VREF, VREF = 100mV
999
999/1000
1000
Digital
Reading
NL
Nonlinearity Error
Full Scale = 20 mV or 2V
– 1
±0.2
1
Count
Max Deviation From Best
Straight Line
Roll-Over Error
–VIN = +VIN ≈ 200mV
– 1
±0.2
1 Count
eN
Noise
VIN = 0V, Full Scale = 200mV
—
15
—
VP-P
IL
Input Leakage Current
VIN = 0V
—
1
10
pA
CMRR
Common-Mode Rejection
VCM = ±1V, VIN = 0V,
—
50
—
V/V
Ratio
Full Scale = 200 mV
Scale Factor Temperature
VIN = 199 mV, 0°C ≤ TA ≤ +70°C
—
1
5
ppm/
°C
Coefficient
Ext Ref Temp Coeff = 0ppm/
°C
Analog Common
VCTC
Analog Common
250 k
Between Common and V+
Temperature Coefficient
0
°C ≤ TA ≤ +70°C
TC7136A
—
35
75
ppm/
°C
"C" Commercial Temp
TC7136
—
70
150
ppm/
°C
Range Devices
– 25
°C ≤ TA ≤ +85°C
TC7136A
—
35
100
ppm/
°C
"I" Industrial Temp
TC7136
—
70
150
ppm/
°C
Range Devices
VC
Analog Common Voltage
250 kW Between Common and V+
2.7
3.05
3.35
V
LCD Drive
VSD
LCD Segment Drive Voltage
V+ to V– = 9V
4
5
6
VP-P
VBD
LCD Backplane Drive Voltage
V+ to V– = 9V
4
5
6
VP-P
Power Supply
IS
Power Supply Current
VIN = 0V, V+ to V– = 9V (Note 6)
—
70
100
A
NOTES: 1. Input voltages may exceed supply voltages when input current is limited to 100
A.
2. Dissipation rating assumes device is mounted with all leads soldered to PC board.
3. Refer to "Differential Input" discussion.
4. Backplane drive is inphase with segment drive for "OFF" segment and 180
° out-of-phase for "ON" segment. Frequency is 20 times
conversion rate. Average DC component is less than 50mV.
5. See "Typical Operating Circuit".
6. A 48kHz oscillator increases current by 20
A (typical). Common current not included.
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