參數(shù)資料
型號(hào)： TC7109ACLWR
元件分類(lèi)： ADC
英文描述： 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 23/28頁(yè)
文件大?。?/td> 598K
代理商： TC7109ACLWR
TC7109/A
DS21456B-page 4
2002 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
—
V/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
—
VV
IN = 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
V/°C
VIN =0V
TCFS
Scale Factor Temperature Coefficient
—
1
5
V/°C
VIN = 408.9mV = >77708
Reading, Ext Ref = 0ppm/°C
Note
1:
Input voltages may exceed supply voltages if input current is limited to ±100
A.
2:
Connecting any digital inputs or outputs to voltages greater than V+ or less than GND may cause destructive device
latchup. 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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