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ICL7149 PDF预览

ICL7149

更新时间: 2024-11-19 22:55:23
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
13页 114K
描述
33/4 Digit, Autoranging Multimeter

ICL7149 数据手册

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ICL7139, ICL7149  
3
3 / Digit,  
4
August 1997  
Autoranging Multimeter  
Features  
Description  
• 13 Ranges - ICL7139  
- 4 DC Voltage 400mV, 4V, 40V, 400V  
- 1 AC Voltage 400V  
The Intersil ICL7139 and ICL7149 are high performance, low  
power, auto-ranging digital multimeter lCs. Unlike other  
autoranging multimeter ICs, the ICL7139 and ICL7149  
always display the result of a conversion on the correct  
range. There is no “range hunting” noticeable in the display.  
The unit will autorange between the four different ranges. A  
manual switch is used to select the 2 high group ranges. DC  
current ranges are 4mA and 40mA in the low current group,  
and 400mA and 4A in the high current group. Resistance  
measurements are made on 4 ranges, which are divided into  
two groups. The low resistance ranges are 4/40k. The high  
resistance ranges are 0.4/4M. Resolution on the lowest  
range is 1.  
- 4 DC Current 4mA, 40mA, 400mA, 4A  
- 4 Resistance 4k, 40k, 400k, 4MΩ  
• 18 Ranges - ICL7149  
- 4 DC Voltage 400mV, 4V, 40V, 400V  
- 2 AC Voltage with Optional AC Circuit  
- 4 DC Current 4mA, 40mA, 400mA, 4A  
- 4 AC Current with Optional AC Circuit  
- 4 Resistance 4k, 40k, 400k, 4MΩ  
• Autoranging - First Reading is Always on Correct Range  
• On-Chip Duplex LCD Display Drive Including Three Dec-  
imal Points and 11 Annunciators  
Ordering Information  
• No Additional Active Components Required  
TEMP.  
o
• Low Power Dissipation - Less than 20mW - 1000 Hour  
Typical Battery Life  
PART NUMBER RANGE ( C)  
PACKAGE  
40 Ld PDIP  
40 Ld PDIP  
44 Ld MQFP  
PKG. NO.  
E40.6  
ICL7139CPL  
ICL7149CPL  
ICL7149CM44  
0 to 70  
0 to 70  
0 to 70  
• Display Hold Input  
• Continuity Output Drives Piezoelectric Beeper  
• Low Battery Annunciator with On-Chip Detection  
• Guaranteed Zero Reading for 0V Input on All Ranges  
E40.6  
Q44.10x10  
Pinouts  
ICL7139, ICL7149 (PDIP)  
TOP VIEW  
ICL7149 (MQFP)  
TOP VIEW  
POL/AC  
BP2  
BP1  
V+  
1
2
3
4
5
6
7
8
9
40 ADG /E  
3 3  
39 B /C  
3
3
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
F /DP  
2
3
2
1
G /E  
2
2
2
2
V-  
A /D  
2
44 43 42 41 40 39 38 37 36 35 34  
M/µA  
1
A /D  
2
33  
32  
31  
30  
29  
V
2
2
3
3
3
B /C  
2
REF  
2
3
4
5
6
7
8
9
/A  
G /E  
2
LOΩ  
HIΩ  
F /DP  
1
F /DP  
2
k/m  
G /E  
1
1
1
1
OSC IN  
OSC OUT  
HOLD  
B /C  
3
DEINT  
A /D  
1
ADG /E  
3
COMMON 10  
INT 1 11  
B /C  
1
POL/AC  
NC  
28  
27  
26  
25  
24  
23  
F /DP  
0
HI-DC/LO-AC  
V//A  
INT V/12  
G /E  
BP2  
BP1  
V+  
0
0
0
0
TRIPLE POINT 13  
mA/µA  
BEEPER OUT  
NC  
A /D  
0
10  
11  
C
14  
15  
B /C  
0
AZ  
NC  
C
LO BAT/V  
M/µA  
/A  
INT  
12 13 14 15 16 17 18 19 20 21 22  
BEEPER OUT 16  
mA/µA 17  
V//A 18  
k/m  
HI-DC/LO-AC 19  
HOLD 20  
OSC IN  
OSC OUT  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999  
File Number 3088.1  
3-33  

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