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參數(shù)資料
| 型號： | TC811CPL |
| 元件分類： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, ACCESS, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大小： | 145K |
| 代理商： | TC811CPL |
3
3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
WITH HOLD AND DIFFERENTIAL REFERENCE INPUTS
TC811
ELECTRICAL CHARACTERISTICS: VSupply = 9V, fCLOCK = 32.768kHz, and TA = 25°C, unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
TCSF
Scale Factor Temperature
VIN = 199mV, 0
°C ≤ TA ≤ 70°C
—
1
5
ppm/
°C
Coefficient
(ext. VREF tc = 0ppm)
Analog Common Section
VCTC
Analog Common
250K
from V+ to Analog Common
—
Temperature Coefficient
0
°C ≤ TA ≤ 70°C—
—
"C" Commercial
—
35
75
ppm/
°C
"I" Industrial
—
35
100
ppm/
°C
VC
Analog Common Voltage
250k
from V+ to Analog Common
2.7
3.05
3.35
Volts
Hold Pin Input Section
Input Resistance
Pin 1 to Pin 37
—
70
—
k
VIL
Input Low Voltage
Pin 1
—
Test +1.5
V
VIH
Input High Voltage
Pin 1
V+ – 1.5
—
V
LCD Drive Section3
VSD
LCD Segment Drive Voltage
V+ to V– = 9V
4
5
6
VP-P
VSD
LCD Backplane Drive Voltage
V+ to V– = 9V
4
5
6
VP-P
Power Supply
ISUP
Power Supply Current
VIN = 0V, V+ to V– = 9V
—
fOSC = 16kHz
—
70
100
A
fOSC = 48kHz
—
90
125
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 a printed circuit board.
3. Backplane drive is in phase with the segment drive for "segment off" 180
° out of phase for "segment on." Frequency is 20 times the
conversion rate. Average DC component is less than 50mV.
V+
NORMAL PIN
CONFIGURATION
10's
100's
1000's
100's
TC811CPL
(40-PIN PDIP)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1's
D2
C2
B2
A2
F2
E2
D3
B3
F3
E3
AB4
POL
(MINUS SIGN)
D1
C1
B1
A1
F1
G1
E1
10's
OSC
TEST
V
ANALOG
COMMON
CAZ
OSC2
HLDR
+
REF
V
–
REF
C
+
REF
C
–
REF
V
+
IN
V
–
IN
VBUFF
VINT
V –
G
C
A
G
BP
(BACKPLANE)
3
2
1
NC = NO INTERNAL CONNECTION
27
28
29
30
31
32
33
7
4
3
2
1
NC
TC811CKW
(PQFP)
12
13
14
15
17
18
G
44
43
42
41
39
38
40
COM
16
37
AZ
36
B
UFF
35
INT
34
V
19
20
21
22
D
26
8
25
9
24
10
23
11
5
6
C
V
TEST
NC
HLDR
+
3
D
2
C
2
B
2
A
2
F
2
E
2
NC
OSC2
OSC1
REF
C
REF
C
–
V
+
2
3
A3
G3
BP
POL
AB4
E3
F3
B3
D1
C1
B1
A
1
F
1
G
1
E
1
+
REF
V
+
REF
IN
V
–
IN
V
–
PIN CONFIGURATIONS
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