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CA3290 データシート(PDF) 1 Page - Intersil Corporation

部品番号 CA3290
部品情報  BiMOS Dual Voltage Comparators with MOSFET Input, Bipolar Output
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メーカー  INTERSIL [Intersil Corporation]
ホームページ  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CA3290 データシート(HTML) 1 Page - Intersil Corporation

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1
®
CA3290, CA3290A
BiMOS Dual Voltage Comparators
with MOSFET Input, Bipolar Output
The CA3290A and CA3290 types consist of a dual voltage
comparator on a single monolithic chip. The common mode
input voltage range includes ground even when operated
from a single supply. The low supply current drain makes
these comparators suitable for battery operation; their
extremely low input currents allow their use in applications
that employ sensors with extremely high source
impedances. Package options are shown in the table below.
Pinout
CA3290/A (PDIP)
TOP VIEW
Features
• MOSFET Input Stage
- Very High Input Impedance (ZIN) . . . . . . . . 1.7TΩ (Typ)
- Very Low Input Current at V+ = 5V. . . . . . . 3.5pA (Typ)
- Wide Common Mode Input Voltage Range (VICR) Can Be
Swung 1.5V (Typ) Below Negative Supply Voltage Rail
- Virtually Eliminates Errors Due to Flow of Input Currents
• Output Voltage Compatible with TTL, DTL, ECL, MOS,
and CMOS Logic Systems in Most Applications
Applications
• High Source Impedance Voltage Comparators
• Long Time Delay Circuits
• Square Wave Generators
• A/D Converters
• Window Comparators
Schematic Diagram
(ONLY ONE IS SHOWN)
OUTPUT (A1)
INV. INPUT (A1)
NON-INV. INPUT (A1)
V-
1
2
3
4
8
7
6
5
V+
OUTPUT (A2)
INV. INPUT (A2)
NON-INV. INPUT (A2)
A1
A2
Part Number Information
PART
NUMBER
TEMP
RANGE (oC)
PACKAGE
PKG. NO.
CA3290AE
-55 to 125
8 Ld PDIP
E8.3
CA3290E
-55 to 125
8 Ld PDIP
E8.3
D1
+VI
-VI
D2
I1
Q9
I2
Q10
I3
Q11
I4
Q12
Q2
Q3
Q5
Q6
D3
D4
Q4
COMPARATOR NO. 1
Q7
VO
Q1
BIASING CIRCUIT
FOR CURRENT
SOURCES
TO
COMP.
NO. 2
R1
100k
Q8
Q15
Q13
Q14
Q16
Q17
Q18
R2
1k
R3
5k
C1
5pF
V-
V+
50
µA
100
µA50µA
100
µA
Data Sheet
January 2004
FN1049.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
OBSO
LETE
PROD
UCT
NO RE
COMM
ENDE
D REP
LACE
MENT
conta
ct our
Techn
ical Su
pport
Cente
r at
1-888-
INTERS
IL or w
ww.in
tersil.
com/t
sc


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