參數(shù)資料
型號(hào)： ICL7149CM44
廠商： INTERSIL CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： ER 3C 3#12 SKT RECP
中文描述： SPECIALTY ANALOG CIRCUIT, PQFP44
封裝： PLASTIC, MS-022AB, MQFP-44
文件頁(yè)數(shù)： 3/13頁(yè)
文件大?。?/td> 111K
代理商： ICL7149CM44
3-35
Absolute Maximum Ratings
Thermal Information
Supply Voltage (V+ to V-) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Reference Input Voltage (V
REF
to COM) . . . . . . . . . . . . . . . . . . . 3V
Analog Input Current (IN + Current or IN + Voltage) . . . . . . . 100
μ
A
Clock Input Swing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to V+ -3
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . .0
o
C to 70
o
C
Thermal Resistance (Typical, Note 1)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150
o
C
Maximum Storage Temperature Range . . . . . . . . . .-65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . . 300
o
C
(MQFP - Lead Tips Only)
θ
JA
(
o
C/W)
50
80
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
θ
JA
is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
V+ = 9V, T
A
= 25
o
C, V
REF
adjusted for -3.700 reading on DC volts, test circuit as shown in Figure 3.
Crystal = 120kHz. (See Figure 14)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Zero Input Reading
V
IN
or I
IN
or R
IN
= 0.00
(Notes 1 and 8)
-00.0
-
+00.0
V, I,
Linearity (Best Straight Line) (Note 6)
-1
-
+1
Counts
Accuracy DC V, 400V Range Only
(Notes 1 and 8)
-
-
±
1
% of RDG
±
1
% of RDG
±
1
% of RDG
±
8
% of RDG
±
9
% of RDG
±
1
% of RDG
±
1
Accuracy DC V, 400V Range Excluded
(Notes 1 and 8)
-
-
±
0.30
±
0.75
±
1
±
0.75
Accuracy
, 4K and 400K Range
Accuracy
, 4K and 4M Range
(Notes 1 and 8)
-
-
(Notes 1 and 8)
-
-
Accuracy DC I, Unadjusted for Full Scale
(Notes 1 and 8)
-
-
Accuracy DC I, Adjusted for Full Scale
(Notes 1 and 8)
-
±
0.2
±
2
-
Accuracy AC V
At 60Hz (Notes 5, 7, and 8)
-
-
% of RDG
Open Circuit Voltage for
Measurements
R
UNKNOWN
= Infinity
V
IN
= 0, DC V (Note 2, 95% of Time)
V
IN
= 0, AC V (Note 2, 95% of Time)
V
IN
= 0, DC Voltage Range
I
COMMON
< 10
μ
A
I
COMMON
< 10
μ
A, Temp. = 0
o
C To 70
o
C
I
COMMON
< 10
μ
A
Average DC < 50mV
-
V
REF
0.1
-
V
Noise
-
-
LSB
Noise
-
4
-
LSB
Supply Current
-
1.5
2.4
mA
Analog Common (with Respect to V+)
2.7
2.9
3.1
V
Temperature Coefficient of Analog Common
-
-100
-
ppm/
o
C
Output Impedance of Analog Common
-
1
10
Backplane/Segment Drive Voltage
2.8
3.0
3.2
V
Backplane/Segment Display Frequency
-
75
-
Hz
Switch Input Current
V
IN
= V+ to V- (Note 3)
-50
-
+50
μ
A
Switch Input Levels (High Trip Point)
V+ - 0.5
-
V+
V
Switch Input Levels (Mid Trip Point)
V- + 3
-
V+ - 2.5
V
Switch Input Levels (Low Trip Point)
V-
-
V- + 0.5
V
Beeper Output Drive (Rise or Fall Time)
C
LOAD
= 10nF
-
25
100
μ
s
Beeper Output Frequency
-
2
-
kHz
Continuity Detect
Range = Low
, V
REF
= 1.00V
V+ to V-
-
1.5
-
k
Power Supply Functional Operation
7
9
11
V
Low Battery Detect
V+ to V- (Note 4)
6.5
7
7.5
V
NOTES:
1. Accuracy is defined as the worst case deviation from ideal input value including: offset, linearity, and rollover error.
2. Noise is defined as the width of the uncertainty window (where the display will flicker) between two adjacent codes.
3. Applies to pins 17-20.
4. Analog Common falls out of regulation when the Low Battery Detect is asserted, however the ICL7139 and ICL7149 will continue to
operate correctly with a supply voltage above 7V and below 11V.
5. For 50Hz use a 100kHz crystal.
6. Guaranteed by design, not tested.
7. ICL7139 only.
8. RDG = Reading.
ICL7139, ICL7149
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