參數(shù)資料
型號： TC7117CPI
元件分類： ADC
英文描述： 1-CH DUAL-SLOPE ADC, PDIP40
封裝： PLASTIC, DIP-40
文件頁數(shù)： 28/32頁
文件大?。?/td> 515K
代理商： TC7117CPI
2006 Microchip Technology Inc.
DS21455C-page 5
TC7106/A/TC7107/A
TABLE 1-1:
TC7106/A AND TC7107/A ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise noted, specifications apply to both the TC7106/A and TC7107/A at TA = 25°C,
fCLOCK = 48kHz. Parts are tested in the circuit of the Typical Operating Circuit.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
ZIR
Zero Input Reading
-000.0
±000.0
+000.0
Digital
Reading
VIN = 0.0V
Full Scale = 200.0mV
Ratiometric Reading
999
999/1000
1000
Digital
Reading
VIN = VREF
VREF = 100mV
R/O
Rollover Error (Difference in Reading for
Equal Positive and Negative
Reading Near Full Scale)
-1
±0.2
+1
Counts
VIN- = + VIN+ 200mV
Linearity (Max. Deviation from Best
Straight Line Fit)
-1
±0.2
Counts
Full Scale = 200mV or
Full Scale = 2.000V
CMRR
Common Mode Rejection Ratio (Note 3)
—50
—
μV/V
VCM = ±1V, VIN = 0V,
Full Scale = 200.0mV
eN
Noise (Peak to Peak Value not Exceeded
95% of Time)
—15
—
μVVIN = 0V
Full Scale - 200.0mV
IL
Leakage Current at Input
—
1
10
pA
VIN = 0V
Zero Reading Drift
—
0.2
1
μV/°C
VIN = 0V
“C” Device = 0°C to +70°C
—1.0
2
μV/°C
VIN = 0V
“I” Device = -25°C to +85°C
TCSF
Scale Factor Temperature Coefficient
—
1
5
ppm/°C
VIN = 199.0mV,
“C” Device = 0°C to +70°C
(Ext. Ref = 0ppm°C)
—
20
ppm/°C
VIN = 199.0mV
“I” Device = -25°C to +85°C
IDD
Supply Current (Does not include LED
Current For TC7107/A)
—0.8
1.8
mA
VIN = 0.8
VC
Analog Common Voltage
(with Respect to Positive Supply)
2.7
3.05
3.35
V
25k
Ω Between Common and
Positive Supply
VCTC
Temperature Coefficient of Analog
Common (with Respect to Positive Supply)
—
25k
Ω Between Common and
Positive Supply
7106/7/A
7106/7
20
80
50
—
ppm/°C
0°C
≤ TA ≤ +70°C
(“C” Commercial Temperature
Range Devices)
VCTC
Temperature Coefficient of Analog
Common (with Respect to Positive Supply)
—
75
ppm/°C
0°C
≤ TA ≤ +70°C
(“I” Industrial Temperature
Range Devices)
VSD
TC7106A ONLY Peak to Peak
Segment Drive Voltage
4
5
6
V
V+ to V- = 9V
(Note 4)
VBD
TC7106A ONLY Peak to Peak
Backplane Drive Voltage
4
5
6
V
V+ to V- = 9V
(Note 4)
TC7107A ONLY
Segment Sinking Current (Except Pin 19)
5
8.0
—
mA
V+ = 5.0V
Segment Voltage = 3V
TC7107A ONLY
Segment Sinking Current (Pin 19)
10
16
—
mA
V+ = 5.0V
Segment Voltage = 3V
Note
1:
Input voltages may exceed the supply voltages, provided the input current is limited to ±100
μA.
2: Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
3: Refer to “Differential Input” discussion.
4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment.
Frequency is 20 times conversion rate. Average DC component is less than 50mV.
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