参数资料
型号: CA3290A
厂商: Intersil Corporation
英文描述: BiMOS Dual Voltage Comparators with MOSFET Input, Bipolar Output
中文描述: BiMOS双电压比较器与MOSFET的输入,双极性输出
文件页数: 1/8页
文件大小: 347K
代理商: CA3290A
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 (Z
IN
) . . . . . . . . 1.7T
(Typ)
- Very Low Input Current at V+ = 5V. . . . . . . 3.5pA (Typ)
- Wide Common Mode Input Voltage Range (V
ICR
) 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 (A
1
)
INV. INPUT (A
1
)
NON-INV. INPUT (A
1
)
V-
1
2
3
4
8
7
6
5
V+
OUTPUT (A
2
)
INV. INPUT (A
2
)
NON-INV. INPUT (A
2
)
-
+
-
+
A
1
A
2
Ordering Information
PART
NUMBER
TEMP
RANGE (
o
C)
PACKAGE
PKG. NO.
CA3290AE
-55 to 125
8 Ld PDIP
E8.3
CA3290E
-55 to 125
8 Ld PDIP
E8.3
D
1
+V
I
-V
I
D
2
I
1
Q
9
100
μ
A
I
2
Q
10
50
μ
A
I
3
Q
100
μ
A
I
4
Q
12
Q
2
Q
3
Q
5
Q
6
D
3
D
4
Q
4
COMPARATOR NO. 1
Q
7
V
O
Q
1
BIASING CIRCUIT
FOR CURRENT
SOURCES
TO
COMP.
NO. 2
R
1
100k
Q
8
Q
15
Q
13
Q
14
Q
16
Q
17
Q
18
R
2
1k
R
3
5k
C
1
5pF
V-
V+
50
μ
A
Data Sheet
September 1998
File Number
1049.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Copyright
Intersil Corporation 1999
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