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參數(shù)資料
| 型號(hào)： | CA3420 |
| 廠商： | Intersil Corporation |
| 英文描述： | 0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers |
| 中文描述： | 0.5MHz，低電源電壓，低輸入電流BiMOS運(yùn)算放大器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 78K |
| 代理商： | CA3420 |
1
TM
File Number
1320.6
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 trademark of Intersil Corporation.
Copyright
Intersil Corporation 2000
CA3420, CA3420A
0.5MHz, Low Supply Voltage, Low Input
Current BiMOS Operational Amplifiers
The CA3420A and CA3420 are integrated circuit operational
amplifiers that combine PMOS transistors and bipolar
transistors on a single monolithic chip. The CA3420A and
CA3420 BiMOS operational amplifiers feature gate
protected PMOS transistors in the input circuit to provide
very high input impedance, very low input currents (less than
1pA). The internal bootstrapping network features a unique
guardbanding technique for reducing the doubling of leakage
current for every 10
o
C increase in temperature. The CA3420
series operates at total supply voltages from 2V to 20V
either single or dual supply. These operational amplifiers are
internally phase compensated to achieve stable operation in
the unity gain follower configuration. Additionally, they have
access terminals for a supplementary external capacitor if
additional frequency roll-off is desired. Terminals are also
provided for use in applications requiring input offset voltage
nulling. The use of PMOS in the input stage results in
common mode input voltage capability down to 0.45V below
the negative supply terminal, an important attribute for single
supply application. The output stage uses a feedback OTA
type amplifier that can swing essentially from rail-to-rail. The
output driving current of 1.5mA (Min) is provided by using
nonlinear current mirrors.
Features
2V Supply at 300
μ
A Supply Current
1pA Input Current (Typ) (Essentially Constant to 85
o
C)
Rail-to-Rail Output Swing (Drive
±
2mA into 1k
Load)
Pin Compatible with 741 Operational Amplifiers
Applications
pH Probe Amplifiers
Picoammeters
Electrometer (High Z) Instruments
Portable Equipment
Inaccessible Field Equipment
Battery-Dependent Equipment (Medical and Military)
Functional Diagram
Pinouts
CA3420 (PDIP)
TOP VIEW
CA3420 (METAL CAN)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
CA3420AT
-55 to 125
8 Pin Metal Can
T8.C
CA3420E
-55 to 125
8 Ld PDIP
E8.3
MOS
BIPOLAR
X1
X1
MOS
BIPOLAR
OTA BUFFER
(X2)
HIGH GAIN
(50K)
BUFFER AMPS;
BOOTSTRAPPED
INPUT PROTECTION
NETWORK
-
+
1
2
3
4
8
7
6
5
+
V+
OFFSET NULL
INV.
INPUT
NON-INV.
INPUT
V-
STROBE
OUTPUT
OFFSET NULL
-
OUTPUT
OFFSET NULL
4
V-
6
1
3
7
5
8
+
STROBE
V+
NON-INV.
INPUT
INV.
INPUT
TAB
OFFSET NULL
2
-
Data Sheet
April 2000
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| CA3420A | 0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers |
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| CA3420E | 0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers |
| CA3440 | 63kHz, Nanopower, BiMOS Operational Amplifiers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CA3420_05 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifier |
| CA3420-10-C22 | 制造商:ITT Interconnect Solutions 功能描述:CA18220-110 (018220-0110) - Bulk |
| CA342010C22BUSHING | 制造商:ITT Interconnect Solutions 功能描述:CA342010C22BUSHING / 018220-0110 / Circular |
| CA3420-12-C22 | 制造商:ITT Interconnect Solutions 功能描述:CA18220-112 (018220-0112) - Bulk |
| CA342012C22BUSHING | 制造商:ITT Interconnect Solutions 功能描述:CA342012C22BUSHING / 018220-0112 / Circular |
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