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參數資料
| 型號： | TC811CPL |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | 顯示驅動器 |
| 英文描述： | 3-1/2 Digit Analog-To-Digital Converter with Hold and Differential Reference Inputs |
| 中文描述： | 3-1/2數字模擬到數字轉換器與保持和差分基準輸入 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 171K |
| 代理商： | TC811CPL |
3-137
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
TC811
TC811CPL
THOUSANDS
HUNDREDS
TENS
UNITS
4
39
OSC
V
TEST
TO SWITCH DRIVERS
FROM COMPARATOR OUTPUT
CLOCK
7 SEGMENT
DECODE
40
2
OSC1
CONTROL LOGIC
26
500
DATA LATCH
+
BUFF
C–
RINT
V+
CAZ
VINT
28
29
INTEGRATOR
27
34
36
35
10
μ
A
31
ZI & A/Z
INT
AZ & DE (
±
)
32
INT
26
V–
TO
DIGITAL
SECTION
DE (+)
DE
(–)
DE
(+)
DE (–)
ANALOG
COMMON
C+
VIN
+
VIN
–
V
CINT
V+
V–
A/Z
CREF
+
33
+
–
LCD SEGMENT DRIVERS
200
BACKPLANE
fOSC
V–
VTH
+
–
INTERNAL DIGITAL GOUND
LOW
COMPARATOR
–
A/Z
ZI
V+– 3.0V
38
470k
10pF
7 SEGMENT
DECODE
7 SEGMENT
DECODE
21
TYPICAL SEGMENT OUTPUT
INTERNAL DIGITAL GROUND
SEGMENT
OUTPUT
V+
0.5mA
2mA
6.2V
LCD DISPLAY
+
–
38
20pF
V+
V+
22M
HLDR
≈
70k
A/Z
30
kH
1
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
Temp.
Range
0
°
C to +70
°
C 75 ppm/
°
C
Max V
REF
Tempco
Part No.
Package
TC811CKW 44-PQFP
TC811CPL
40-Pin Plastic DIP
0
°
C to +70
°
C 75 ppm/
°
C
3-1/2 DIGIT A/D CONVERTER WITH HOLD AND DIFFERENTIAL
REFERENCE INPUTS
FEATURES
I
I
I
Differential Reference Input
Display Hold Function
Fast Over-Range Recovery, Guaranteed Next
Reading Accuracy
Low Temperature Drift Internal
Reference ....................................... 35ppm/
°
C (Typ)
Guaranteed Zero Reading With Zero Input
Low Noise..................................................... 15
μ
V
p-p
High Resolution (0.05%) and Wide Dynamic
Range (72 dB)
High Impedance Differential Input
Low Input Leakage Current .......................1pA Typ
I
I
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I
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10pA Max
I
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I
Direct LCD Drive – No External Components
Precision Null Detection with True Polarity at Zero
Crystal Clock Oscillator
Available in DIP, Compact Flat Package or PLCC
Convenient 9V Battery Operation with
Low Power Dissipation (600
μ
A Typical, 1mW
Maximum)
TYPICAL APPLICATIONS
I
I
Thermometry
Digital Meters
— Voltage/Current/Power
— pH Measurement
— Capacitance/Inductance
— Fluid Flow Rate/Viscosity
— Humidity
— Position
Panel Meters
LVDT Indicators
Portable Instrumentation
Digital Scales
Process Monitors
Gaussometers
Photometers
I
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TC811-7 11/5/96
相關PDF資料 |
PDF描述 |
|---|---|
| TC811CKW | 3-1/2 DIGIT A/D CONVERTER WITH HOLD AND DIFFERENTIAL REFERENCE INPUTS |
| TC811CPL | 3-1/2 DIGIT A/D CONVERTER WITH HOLD AND DIFFERENTIAL REFERENCE INPUTS |
| TC820CKW | 3-3/4 DIGIT A/D CONVERTER WITH FREQUENCY COUNTER AND LOGIC PROBE |
| TC820CKW | 3-3/4 Digit A/D Converter with Frequency Counter and Logic Probe |
| TC820CLW | 3-3/4 Digit A/D Converter with Frequency Counter and Logic Probe |
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