參數(shù)資料
型號： TC7109IJLG
元件分類： ADC
英文描述： 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, CDIP40
封裝： CERAMIC, DIP-40
文件頁數(shù)： 25/30頁
文件大?。?/td> 479K
代理商： TC7109IJLG
TC7109/A
DS21456C-page 4
2006 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Positive Supply Voltage (GND to V+) ..................+6.2V
Negative Supply Voltage (GND to V-) .....................-9V
Analog Input Voltage (Low to High) (Note 1).... V+ to V-
Reference Input Voltage:
(Low to High) (Note 1) ............................. V+ to V-
Digital Input Voltage:
(Pins 2-27) (Note 2) ...........................GND – 0.3V
Power Dissipation, TA < 70°C (Note 3)
CERDIP ......................................................2.29W
Plastic DIP ..................................................1.23W
PLCC ..........................................................1.23W
PQFP ..........................................................1.00W
Operating Temperature Range
Plastic Package (C) ......................... 0°C to +70°C
Ceramic Package (I) ..................... -25°C to +85°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.
TC7109/TC7109A ELECTRICAL SPECIFICATIONS
Electrical Characteristics: All parameters with V+ = +5V, V- = -5V, GND = 0V, TA = +25°C, unless otherwise indicated.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Analog
Overload Recovery Time (TC7109A)
—
0
1
Measurement
Cycle
Zero Input Reading
-00008 ±00008
+00008 Octal Reading VIN = 0V; Full Scale = 409.6mV
Ratio Metric Reading
37778
40008
Octal Reading VIN = VREF
VREF = 204.8mV
NL
Non-Linearity (Max Deviation
from Best Straight Line Fit)
-1
±0.2
+1
Count
Full Scale = 409.6mV to 2.048V
Over Full Operating
Temperature Range
Rollover Error (Difference in Reading for
Equal Positive and Inputs near
(Full Scale)
-1
±0.02
+1
Count
Full Scale = 409.6mV to
2.048V Over Full Operating
Temperature Range
CMRR
Input Common Mode
Rejection Ratio
—50
—
μV/V
VCM ±1V, VIN = 0V
Full Scale = 409.6mV
VCMR
Common Mode Voltage Range
V- +1.5
—
V+ -1.5
V
Input High, Input Low and
Common Pins
eN
Noise (P-P Value Not
Exceeded 95% of Time)
—15
—
μVVIN = 0V, Full Scale = 409.6mV
IIN
Leakage Current at Input
—
1
10
pA
VIN, All Packages: +25°C
—
20
100
pA
C Device: 0°C
≤ TA ≤ +70°C
—
100
250
pA
I Device: -25°C
≤ TA ≤ +85°C
TCZS
Zero Reading Drift
—
0.2
1
μV/°C
VIN = 0V
Note
1:
Input voltages may exceed supply voltages if input current is limited to ±100
μA.
2: Connecting any digital inputs or outputs to voltages greater than V+ or less than GND may cause destructive device
latch-up. Therefore, it is recommended that inputs from sources other than the same power supply should not be applied
to the TC7109A before its power supply is established. In multiple supply systems, the supply to the device should be
activated first.
3: This limit refers to that of the package and will not occur during normal operation.
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