參數(shù)資料
型號(hào)： TC820CLW
廠(chǎng)商： Microchip Technology Inc.
元件分類(lèi)： 通用總線(xiàn)功能
英文描述： 3-3/4 Digit A/D Converter with Frequency Counter and Logic Probe
中文描述： 3-3/4位A / D轉(zhuǎn)換頻率計(jì)數(shù)器和邏輯轉(zhuǎn)換的探討
文件頁(yè)數(shù)： 3/22頁(yè)
文件大小： 275K
代理商： TC820CLW
3-151
TELCOM SEMICONDUCTOR, INC.
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ELECTRICAL CHARACTERISTICS:
V
S
= 9V, T
A
= 25
°
C, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min
Typ
±
000
Max
Units
Zero Input Reading
V
IN
= 0V
Full Scale = 400 mV
V
IN
=
±
390mV
Full-Scale = 400mV
Full-Scale = 400mV
– 000
+000
Digital
Reading
Counts
RE
Roll-Over Error
– 1
±
0.2
+1
NL
Nonlinearity (Maximum
Deviation From Best
Straight Line Fit)
Ratiometric Reading
Common-Mode Rejection
Ratio
– 1
±
0.2
+1
Count
V
IN
= V
REF
, TC820
V
CM
=
±
1V, V
IN
= 0V
Full-Scale = 400mV
(V
FS
= 200 mV)
Input High, Input Low
1999
—
1999/2000
50
2000
—
Digital
μ
V/V
CMRR
VCMR
Common-Mode Voltage
Range
Noise (P-P Value Not
Exceeded 95% of Time)
Input Leakage Current
V
SS
+ 1.5
—
V
DD
– 1
V
e
N
V
IN
= 0V
Full-Scale = 400mV
V
IN
= 0V
T
A
= 25
°
C
0
°
C
≤
T
A
≤
+70
°
C
– 40
°
C
≤
T
A
≤
+85
°
C
25 k
Between Common and V
DD
(V
SS
– V
COM
)
25 k
Between Common and V
DD
0
°
C
≤
T
A
≤
+70
°
C
– 40
°
C
≤
T
A
≤
+85
°
C
V
IN
= 0V
0
°
C
≤
T
A
≤
+70
°
C
– 40
°
C
≤
T
A
≤
+85
°
C
V
IN
= 399mV
0
°
C
≤
T
A
≤
+70
°
C
– 40
°
C
≤
T
A
≤
+85
°
C
Ext Ref = 0 ppm/
°
C
V
IN
= 0V
V
S
= 9V
V
DISP
= DGND
—
15
—
μ
V
I
IN
—
—
—
1
10
—
—
pA
20
100
V
COM
Analog Common Voltage
3.15
3.3
3.45
V
V
CTC
Common Voltage
Temperature Coefficient
—
—
35
50
50
—
ppm/
°
C
TC
ZS
Zero Reading Drift
—
0.2
1
—
μ
V/
°
C
TC
FS
Scale Factor
Temperature Coefficient
—
—
1
5
5
—
ppm/
°
C
I
S
Supply Current
Peak-to-Peak Backplane
Drive Voltage
—
4.25
1
1.5
5.3
mA
V
4.7
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (V
DD
to GND) .....................................15V
Analog Input Voltage (Either Input) (Note 1) ....V
DD
to V
SS
Reference Input Voltage (Either Input).............V
DD
to V
SS
Digital Inputs ............................................... V
DD
to DGND
V
DISP
............................................. V
DD
to (DGND – 0.3V)
Package Power Dissipation (T
A
≤
70
°
C) (Note 2)
40-Pin Plastic DIP.............................................1.23W
44-Pin PLCC.....................................................1.23W
44-Pin Plastic Flat Package..............................1.00W
Operating Temperature Range
"C" Devices............................................0
°
C to +70
°
C
"E" Devices .......................................– 40
°
C to +85
°
C
Storage Temperature Range ................– 65
°
C to +150
°
C
Lead Temperature (Soldering, 10 sec) ................... 300
°
C
*
Static-sensitive devices. Unused devices should be stored in conductive
material to protect against static discharge and static fields. 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 operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
NOTES:
1. Input voltages may exceed the supply voltages provided that
input current is limited to
±
100
μ
A. Current above this value
may result in invalid display readings but will not destroy the
device if limited to
±
1mA.
2. Dissipation ratings assume device is mounted with all leads
soldered to printed circuit board.
TC820
3-3/4 DIGIT A/D CONVERTER WITH
FREQUENCY AND LOGIC PROBE
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