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AD515AJ

更新时间: 2024-01-16 07:22:08
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亚德诺 - ADI 运算放大器
页数 文件大小 规格书
6页 208K
描述
Monolithic Precision, Low Power FET-Input Electrometer Op Amp

AD515AJ 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:TO-99
包装说明:, CAN8,.2针数:8
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.79
放大器类型:OPERATIONAL AMPLIFIER架构:VOLTAGE-FEEDBACK
25C 时的最大偏置电流 (IIB):7.5e-8 µA频率补偿:YES
最大输入失调电压:1000 µVJESD-30 代码:O-MBCY-W8
低-偏置:YES低-失调:NO
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:70 °C
最低工作温度:封装主体材料:METAL
封装等效代码:CAN8,.2封装形状:ROUND
封装形式:CYLINDRICAL电源:+-15 V
认证状态:Not Qualified最小摆率:0.3 V/us
子类别:Operational Amplifiers最大压摆率:1.5 mA
供电电压上限:18 V标称供电电压 (Vsup):15 V
温度等级:COMMERCIAL端子形式:WIRE
端子位置:BOTTOM标称均一增益带宽:350 kHz
最小电压增益:25000Base Number Matches:1

AD515AJ 数据手册

 浏览型号AD515AJ的Datasheet PDF文件第2页浏览型号AD515AJ的Datasheet PDF文件第3页浏览型号AD515AJ的Datasheet PDF文件第4页浏览型号AD515AJ的Datasheet PDF文件第5页浏览型号AD515AJ的Datasheet PDF文件第6页 
Monolithic Precision, Low Power  
FET-Input Electrometer Op Amp  
a
AD515A  
FEATURES  
PIN CONFIGURATION  
Ultralow Bias Current: 75 fA max (AD515AL)  
Ultralow Bias Current: 150 fA max (AD515AK)  
Ultralow Bias Current: 300 fA max (AD515AJ)  
Low Power: 1.5 mA max Quiescent Current  
Low Power: (0.6 mA typ)  
Low Offset Voltage: 1.0 mV max (AD515AK & L)  
Low Drift: 15 V/؇C max (AD515AK)  
Low Noise: 4 V p-p, 0.1 Hz to 10 Hz  
PRODUCT DESCRIPTION  
The AD515A is a monolithic FET-input operational amplifier  
with a guaranteed maximum input bias current of 75 fA  
(AD515AL). The AD515A is a monolithic successor to the  
industry standard AD515 electrometer, and will replace the  
AD515 in most applications. The AD515A also delivers laser-  
trimmed offset voltage, low drift, low noise and low power, a  
combination of features not previously available in ultralow bias  
current circuits. All devices are internally compensated, protected  
against latch-up and are short circuit protected.  
PRODUCT HIGHLIGHTS  
1. The AD515A provides subpicoampere bias currents in an  
integrated circuit amplifier.  
• The ultralow input bias currents are specified as the maxi-  
mum measured at either input with the device fully warmed  
up on ±15 V supplies at +25°C ambient with no heat sink.  
This parameter is 100% tested.  
• By using ±5 V supplies, input bias current can typically be  
brought below 50 fA.  
The AD515A’s combination of low input bias current, low  
offset voltage and low drift optimizes it for a wide variety of  
electrometer and very high impedance buffer applications  
including photocurrent detection, vacuum ion-gage measure-  
ment, long-term precision integration and low drift sample/hold  
applications. This amplifier is also an excellent choice for all forms  
of biomedical instrumentation such as pH/pIon sensitive elec-  
trodes, very low current oxygen sensors, and high impedance  
biological microprobes. In addition, the low cost and pin  
compatibility of the AD515A with standard FET op amps will  
allow designers to upgrade the performance of present systems  
at little or no additional cost. The 1015 common-mode input  
impedance ensures that the input bias current is essentially  
independent of common-mode voltage.  
2. The input offset voltage on all grades is laser trimmed, typically  
less than 500 µV.  
• The offset voltage drift is 15 µV/°C maximum on the  
K grade.  
• If additional pulling is desired, the amount required will  
have a minimal effect on offset drift (approximately 3 µV/°C  
per mV).  
3. The low quiescent current drain of 0.6 mA typical and  
1.5 mA maximum, keeps self-heating effects to a minimum  
and renders the AD515A suitable for a wide range of remote  
probe applications.  
As with previous electrometer amplifier designs from Analog  
Devices, the case is brought out to its own connection (Pin 8)  
so it can be independently connected to a point at the same  
potential as the input, thus minimizing stray leakage to the case.  
This feature will also shield the input circuitry from external  
noise and supply transients.  
4. The combination of low input noise voltage and very low  
input noise current is such that for source impedances from  
1M to 1011 , the Johnson noise of the source will easily  
dominate the noise characteristic.  
The AD515A is available in three versions of bias current and  
offset voltage, the “J”, “K” and “L”; all are specified for rated  
performance from 0°C to +70°C and supplied in a hermetically  
sealed TO-99 package.  
REV. A  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 617/329-4700  
Fax: 617/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1997  

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