参数资料
| 型号： | CA5420AM |
| 厂商： | Intersil |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP 0.5MHZ 8-SOIC |
| 标准包装： | 98 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.5 V/µs |
| 增益带宽积： | 500kHz |
| 电流 - 输入偏压： | 0.05pA |
| 电压 - 输入偏移： | 2000µV |
| 电流 - 电源： | 450µA |
| 电流 - 输出 / 通道： | 27mA |
| 电压 - 电源，单路/双路(±)： | 2 V ~ 20 V，±1 V ~ 10 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
1
0.5MHz, Low Supply Voltage, Low Input Current BiMOS
Operational Amplifiers
CA5420A
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°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°C to +125°C.
The CA5420A has the same 8 lead pinout used for the industry
standard 741.
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 350A Supply Current
1pA (Typ) Input Current (Essentially Constant to +85°C)
Rail-to-Rail Output Swing (Drive ±2mA Into 1k Load)
Pin Compatible with 741 Op Amp
Pb-Free (RoHS Compliant)
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
MOS
BIPOLAR
X1
MOS
BIPOLAR
OTA BUFFER
(X2)
HIGH GAIN
(50k)
BUFFER AMPS;
BOOTSTRAPPED
INPUT PROTECTION
NETWORK
-
+
FIGURE 1. FUNCTIONAL DIAGRAM
September 25, 2013
FN1925.8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 1998, 2005, 2009, 2011, 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CA5420AMZ | 功能描述:运算放大器 - 运放 W/ANNEAL OPAMP 0 5MHZ LWBIAS 0 001NA RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| CA5420AMZ96 | 功能描述:运算放大器 - 运放 W/ANNEAL OPAMP 1 5MHZ LWBIAS 0 001NA RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| CA5420AS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| CA5420AT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| CA5420E | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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