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AD8512 PDF预览

AD8512

更新时间: 2024-02-28 09:10:54
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
20页 682K
描述
Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Operational Amplifiers

AD8512 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:0.89
放大器类型:OPERATIONAL AMPLIFIER架构:VOLTAGE-FEEDBACK
最大平均偏置电流 (IIB):0.01 µA25C 时的最大偏置电流 (IIB):0.00008 µA
标称共模抑制比:100 dB频率补偿:YES
最大输入失调电压:800 µVJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
低-偏置:YES低-失调:YES
微功率:NO湿度敏感等级:1
负供电电压上限:-18 V标称负供电电压 (Vsup):-5 V
功能数量:2端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
功率:NO电源:+-5/+-15 V
可编程功率:NO认证状态:Not Qualified
座面最大高度:1.75 mm标称压摆率:20 V/us
子类别:Operational Amplifier最大压摆率:5 mA
供电电压上限:18 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:JFET
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
标称均一增益带宽:8000 kHz宽带:NO
宽度:3.9 mmBase Number Matches:1

AD8512 数据手册

 浏览型号AD8512的Datasheet PDF文件第12页浏览型号AD8512的Datasheet PDF文件第13页浏览型号AD8512的Datasheet PDF文件第14页浏览型号AD8512的Datasheet PDF文件第16页浏览型号AD8512的Datasheet PDF文件第17页浏览型号AD8512的Datasheet PDF文件第18页 
AD8510/AD8512/AD8513  
OPEN-LOOP GAIN AND PHASE RESPONSE  
V
C
R
= ±15V  
= 500pF  
=10k  
SY  
L
L
In addition to their impressive low noise, low offset voltage, and  
offset current, the AD8510/AD8512/AD8513 have excellent  
loop gain and phase response even when driving large resistive  
and capacitive loads. They were compared to the OPA2132  
under the same conditions. With a 2.5 kΩ load at the output, the  
AD8510/AD8512/AD8513 have more than 8 MHz of band-  
width and a phase margin of more than 52°.  
The OPA2132, on the other hand, has only 4.5 MHz of band-  
width and 28° of phase margin under the same test conditions.  
Even with a 1 nF capacitive load in parallel with the 2 kΩ load  
at the output, the AD8510/AD8512/AD8513 show much better  
response than the OPA2132, whose phase margin is degraded to  
less than 0, indicating oscillation.  
TIME (1µs/DIV)  
Figure 46. Capacitive Load Drive without Snubber  
When the snubber circuit is used, the overshoot is reduced from  
55% to less than 3% with the same load capacitance. Ringing is  
virtually eliminated, as shown in Figure 47.  
70  
60  
315  
270  
225  
190  
V
R
C
= ±15V  
SY  
= 2.5k  
L
L
= 0  
50  
40  
30  
20  
10  
V
= ±15V  
=10kΩ  
= 500pF  
=100Ω  
=1nF  
SY  
R
L
C
L
R
S
C
S
135  
90  
45  
0
0
–10  
–20  
–30  
–45  
–90  
–135  
50M  
10k  
100k  
1M  
10M  
FREQUENCY (Hz)  
Figure 48. Frequency Response of the AD8510/AD8512/AD8513  
TIME (1µs/DIV)  
70  
315  
270  
225  
190  
V
R
C
= ±15V  
SY  
60  
= 2.5k  
= 0  
L
L
Figure 47. Capacitive Load with Snubber Network  
50  
40  
30  
20  
10  
Optimum values for RS and CS depend on the load capacitance  
and input stray capacitance and are determined empirically.  
Table 5 shows a few values that can be used as starting points.  
135  
90  
45  
Table 5. Optimum Values for Capacitive Loads  
0
0
–10  
–20  
–30  
CLOAD  
500 pF  
2 nF  
RS (Ω)  
100  
70  
CS  
–45  
1 nF  
100 pF  
300 pF  
–90  
–135  
50M  
5 nF  
60  
10k  
100k  
1M  
10M  
FREQUENCY (Hz)  
Figure 49. Frequency Response of the OPA2132  
Rev. E | Page 15 of 20  
 
 
 

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