5秒后页面跳转
捷配首页

Datasheet > 放大器电路 > 运算放大器> AD542LH/+
AD542LH/+ PDF预览

AD542LH/+

更新时间： 2024-02-14 18:16:10
品牌 Logo 应用领域
亚德诺 - ADI 运算放大器
页数 文件大小 规格书
12页 375K
描述
IC,OP-AMP,SINGLE,BIPOLAR/JFET,CAN,8PIN,METAL

阅读下载

中文翻译

获取价格

AD542LH/+ 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：TO-99包装说明：HERMETICALLY SEALED, METAL CAN, TO-99, 8 PIN
针数：8Reach Compliance Code：unknown
风险等级：5.89放大器类型：OPERATIONAL AMPLIFIER
最大平均偏置电流 (IIB)：0.000025 µA标称共模抑制比：80 dB
最大输入失调电压：1000 µVJESD-30 代码：O-MBCY-W8
JESD-609代码：e0湿度敏感等级：NOT SPECIFIED
标称负供电电压 (Vsup)：-15 V功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-55 °C封装主体材料：METAL
封装形状：ROUND封装形式：CYLINDRICAL
峰值回流温度（摄氏度）：NOT SPECIFIED标称压摆率：3 V/us
子类别：Operational Amplifier供电电压上限：18 V
标称供电电压 (Vsup)：15 V表面贴装：NO
技术：BIPOLAR温度等级：MILITARY
端子面层：TIN LEAD端子形式：WIRE
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
标称均一增益带宽：1000 kHzBase Number Matches：1

AD542LH/+ 数据手册

 浏览型号AD542LH/+的Datasheet PDF文件第5页浏览型号AD542LH/+的Datasheet PDF文件第6页浏览型号AD542LH/+的Datasheet PDF文件第7页浏览型号AD542LH/+的Datasheet PDF文件第9页浏览型号AD542LH/+的Datasheet PDF文件第10页浏览型号AD542LH/+的Datasheet PDF文件第11页 
AD542/AD544/AD547  
BiFET Application Hints  
current-to-voltage converting amplifier. This possibility necessi-  
tates some form of input protection. Many electrometer type  
devices, especially CMOS designs, can require elaborate Zener  
protection schemes which often compromise overall perfor-  
mance. The BiFET series requires input protection only if the  
source is not current-limited, and as such is similar to many  
JFET-input designs. The failure mode would be overheating  
from excess current rather than voltage breakdown. If the  
source is not current-limited, all that is required is a resistor in  
series with the affected input terminal so that the maximum  
overload current is 1.0 mA (for example, 100 kΩ for a 100 volt  
overload). This simple scheme will cause no significant reduc-  
tion in performance and give complete overload protection. Fig-  
ure 30 shows proper connections.  
APPLICATION NOTES  
The BiFET series was designed for high performance op amp  
applications that require true dc precision. To capitalize on all  
of the performance available from the BiFETs there are some  
practical error sources that should be considered.  
The bias currents of JFET input amplifiers double with every  
10°C increase in chip temperature. Therefore, minimizing the  
junction temperature of the chip will result in extending the  
performance limits of the device.  
1. Heat dissipation due to power consumption is the main  
contributor to self-heating and can be minimized by reducing  
the power supplies to the lowest level allowed by the  
application.  
2. The effects of output loading should be carefully considered.  
Greater power dissipation increases bias currents and de-  
creases open loop gain.  
GUARDING  
The low input bias current (25 pA) and low noise characteristics  
of the high performance BiFET op amp make it suitable for  
electrometer applications such as photo diode preamplifiers and  
picoampere current-to-voltage converters. The use of guarding  
techniques in printed circuit board layout and construction is  
critical for achieving the ultimate in low leakage performance  
available from these amplifiers. The input guarding scheme  
shown in Figure 29 will minimize leakage as much as possible;  
the guard ring is connected to a low impedance potential at the  
same level as the inputs. High impedance signal lines should not  
be extended for any unnecessary length on a printed circuit.  
Figure 30. Input Protection  
D/A CONVERTER APPLICATIONS  
The BiFET series of operational amplifiers can be used with  
CMOS DACs to perform both 2-quadrant and 4-quadrant  
operation. The output impedance of a CMOS DAC varies with  
the digital word, thus changing the noise gain of the amplifier  
circuit. The effect will cause a nonlinearity the magnitude of  
which is dependent on the offset voltage of the amplifier. The  
BiFET series with trimmed offset will minimize this effect. Ad-  
ditionally, the Schottky protection diodes recommended for use  
with many older CMOS DACs are not required when using one  
of the BiFET series amplifiers.  
Figure 31a shows the AD547 and AD7541 configured for uni-  
polar binary (2-quadrant multiplication) operation. With a dc  
reference voltage or current (positive or negative polarity) ap-  
plied at pin 17, the circuit operates as a unipolar converter.  
With an ac reference voltage or current, the circuit provides  
2-quadrant multiplication (digitally controlled attenuation).  
Figure 29. Board Layout for Guarding Inputs  
INPUT PROTECTION  
The BiFET series is guaranteed for a maximum safe input  
potential equal to the power supply potential. The input stage  
design also allows differential input voltages of up to ±1 volt  
while maintaining the full differential input resistance of 1012 Ω.  
This makes the BiFET series suitable for comparator situations  
employing a direct connection to high impedance source.  
Many instrumentation situations, such as flame detectors in gas  
chromatographs, involve measurement of low level currents  
from high-voltage sources. In such applications, a sensor fault  
condition may apply a very high potential to the input of the  
Figure 31a. AD547 Used as DAC Output Amplifier  
–8–  
REV. B  
1...56789101112

中文翻译

下载PDF

与AD542LH/+相关器件

型号 品牌 描述 获取价格 数据表
AD542SCHIPS ADI IC IC,OP-AMP,SINGLE,BIPOLAR/JFET,DIE, Operational Amplifier

获取价格
AD542SH ADI High Performance, BiFET Operational Amplifiers

获取价格
AD542SH ROCHESTER OP-AMP, 1000uV OFFSET-MAX, 1MHz BAND WIDTH, MBCY8, HERMETICALLY SEALED, METAL CAN, TO-99,

获取价格
AD5432 ADI Dual 8-,10-,12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5432BRM ADI 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5432BRM-REEL7 ADI IC IC,D/A CONVERTER,SINGLE,10-BIT,CMOS,TSSOP,10PIN, Digital to Analog Converter

获取价格
AD5432YRM ADI 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5432YRM-REEL ADI 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5432YRM-REEL7 ADI 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5432YRMZ ADI 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5432YRMZ-REEL ADI 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5432YRMZ-REEL7 ADI 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5433 ADI Dual 8-,10-,12-Bit High Bandwidth Multiplying DACs with Serial Interface

获取价格
AD5433BCP ADI IC PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 10-BIT DAC, QCC20, 4 X 4 MM, CSP-

获取价格
AD5433BRU ADI IC PARALLEL, WORD INPUT LOADING, 0.035 us SETTLING TIME, 10-BIT DAC, PDSO20, TSSOP-20, Dig

获取价格
AD5433YCP ADI 8-/10-/12-Bit, High Bandwidth Multiplying DACs with Parallel Interface

获取价格
AD5433YCP-REEL ADI 8-/10-/12-Bit, High Bandwidth Multiplying DACs with Parallel Interface

获取价格
AD5433YCP-REEL7 ADI 8-/10-/12-Bit, High Bandwidth Multiplying DACs with Parallel Interface

获取价格
AD5433YCPZ ADI 8-/10-/12-Bit, High Bandwidth Multiplying DACs with Parallel Interface

获取价格
AD5433YRU ADI 8-/10-/12-Bit, High Bandwidth Multiplying DACs with Parallel Interface

获取价格

与AD542LH/+相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证