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參數資料
| 型號： | CA5420AM |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 運動控制電子 |
| 英文描述： | 0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers |
| 中文描述： | OP-AMP, 5000 uV OFFSET-MAX, 0.5 MHz BAND WIDTH, PDSO8 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 67K |
| 代理商： | CA5420AM |
1
CA5420A
0.5MHz, Low Supply Voltage, Low Input
Current BiMOS Operational Amplifiers
The CA5420A is an integrated circuit operational amplifier
that combines PMOS transistors and bipolar transistors on a
single monolithic chip. It is designed and guaranteed to
operate in microprocessor logic systems that use V+ = 5V,
V- = GND, since it can operate down to
±
1V supplies. It will
also be suitable for 3.3V logic systems.
The CA5420A BiMOS operational amplifier features 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
CA5420A operates at total supply voltages from 2V to 20V
either single or dual supply. This operational amplifier is
internally phase compensated to achieve stable operation in
the unity gain follower configuration. Additionally, it has
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 1.0mA (Min) is provided by using
nonlinear current mirrors.
This device has guaranteed specifications for 5V operation
over the full military temperature range of -55
o
C to 125
o
C.
The CA5420A has the same 8 lead pinout used for the
industry standard 741.
Functional Diagram
Features
CA5420A at 5V Supply Voltage with Full Military
Temperature Range Guaranteed Specifications
CA5420A Guaranteed to Operate from
±
1V to
±
10V
Supplies
2V Supply at 300
μ
A Supply Current
1pA (Typ) Input Current (Essentially Constant to 85
o
C)
Rail-to-Rail Output Swing (Drive
±
2mA Into 1k
Load)
Pin Compatible with 741 Op Amp
Applications
pH Probe Amplifiers
Picoammeters
Electrometer (High Z) Instruments
Portable Equipment
Inaccessible Field Equipment
Battery Dependent Equipment (Medical and Military)
5V Logic Systems
Microprocessor Interface
Pinout
CA5420A
(SOIC)
TOP VIEW
NOTE: Pin is connected to Case.
MOS
BIPOLAR
+
X1
X1
MOS
BIPOLAR
OTA BUFFER
(X2)
HIGH GAIN
(50K)
BUFFER AMPS;
BOOTSTRAPPED
INPUT PROTECTION
NETWORK
Ordering Information
PART NUMBER
(BRAND)
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
CA5420AM
(5420A)
-55 to 125
8 Ld SOIC
M8.15
1
2
3
4
8
7
6
5
+
V+
OFFSET
NULL
INV.
INPUT
NON-INV.
INPUT
V-
STROBE
OUTPUT
OFFSET
NULL
-
Data Sheet
September 1998
File Number
1925.4
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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相關代理商/技術參數 |
參數描述 |
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| CA5420AMZ | 功能描述:運算放大器 - 運放 W/ANNEAL OPAMP 0 5MHZ LWBIAS 0 001NA RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| CA5420AMZ96 | 功能描述:運算放大器 - 運放 W/ANNEAL OPAMP 1 5MHZ LWBIAS 0 001NA RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| CA5420AS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| CA5420AT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| CA5420E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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