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ADA4098-1 PDF预览

ADA4098-1

更新时间: 2024-11-05 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI 放大器运算放大器
页数 文件大小 规格书
33页 2037K
描述
50 V、1 MHz、165 μA 具有鲁棒性的顶级精密运算放大器

ADA4098-1 数据手册

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Data Sheet  
ADA4098-1/ADA4098-2  
50 V, 1 MHz, 165 µA per Channel, Robust, Over-The-Top, Precision Op Amps  
FEATURES  
GENERAL DESCRIPTION  
Ultrawide common-mode input range: −VS − 0.1 V to −VS + 70 V  
Wide power supply voltage range: +3 V to +50 V (to ±25 V for  
PSRR)  
Low power supply current: 165 µA per channel (typical)  
Low input offset voltage: ±35 µV maximum  
Low input offset voltage drift: ±0.5 µV/°C maximum (B grade)  
Low input voltage noise  
1/f noise corner: 6 Hz typical  
400 nV p-p typical at 0.1 Hz to 10 Hz  
17 nV/√Hz typical at 100 Hz  
High speed  
GBP: 1.05 MHz typical for fTEST = 2.5 kHz  
Slew rate: 0.85 V/µs typical at ΔVOUT = 25 V  
Low power supply current shutdown: 20 µA maximum  
Low input offset current: ±700 pA maximum  
Large signal voltage gain: 126 dB minimum for ΔVOUT = 3.5 V  
CMRR: 120 dB minimum at VCM = −0.1 V to +70 V  
PSRR: 123 dB minimum at VSY = +3 V to ±25 V  
Input overdrive tolerant with no phase reversal  
±3 kV HBM and ±1.25 kV FICDM  
The ADA4098-1 and ADA4098-2 are single/dual robust, precision,  
rail-to-rail input and output operational amplifiers (op amps) with  
inputs that operate from −VS to +VS and beyond, which is referred  
to in this data sheet as Over-The-Top . The devices feature offset  
voltages of <35 µV, input bias currents (IB) of <700 pA, and can  
operate on single or split supplies that range from 3 V to 50 V.  
The ADA4098-1 and ADA4098-2 draw 165 µA of supply current per  
channel.  
The ADA4098-1 and ADA4098-2 Over-The-Top input stages have  
robust input protection features for abusive environments. The  
inputs can tolerate up to 80 V of differential voltage without damage  
or degradation to dc accuracy. The operating common-mode input  
range extends from rail-to-rail and beyond, up to 70 V > –VS,  
independent of the +VS supply.  
The ADA4098-1 and ADA4098-2 are unity-gain stable and can  
drive loads requiring up to 20 mA per channel. The devices can  
also drive capacitive loads as large as 200 pF. The amplifiers are  
available with low power shutdown.  
The ADA4098-1 is available in a standard, 6-lead thin small out-  
line transistor (TSOT) package. The ADA4098-2 is available in  
an 8-lead standard small outline (SOIC_N) package, 8-lead mini  
small outline package (MSOP), and 10-lead lead-frame chip-scale  
package (LFCSP).  
Wide temperature range: −55°C to +150°C (H grade)  
APPLICATIONS  
Industrial sensor conditioning  
Supply current sensing  
Battery and power supply monitoring  
Front-end amplifiers in abusive environments  
4 mA to 20 mA transmitters  
TYPICAL APPLICATION CIRCUIT  
Figure 1. 1 V/A Over-The-Top Current Sense Application (ADA4098-1 6-Lead  
TSOT, VBAT Is the Battery Voltage)  
Figure 2. Output Error vs. Load Current  
Rev. B  
Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog  
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to  
change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
DOCUMENT FEEDBACK  
TECHNICAL SUPPORT  

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