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ADA4857-1YRZ-R7 PDF预览

ADA4857-1YRZ-R7

更新时间: 2024-01-16 10:25:06
品牌 Logo 应用领域
亚德诺 - ADI 运算放大器放大器电路光电二极管
页数 文件大小 规格书
20页 588K
描述
Ultralow Distortion, Low Power, Low Noise, High Speed Op Amp

ADA4857-1YRZ-R7 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:unknown风险等级:5.35
Is Samacsys:N放大器类型:OPERATIONAL AMPLIFIER
最大平均偏置电流 (IIB):3.3 µA标称共模抑制比:86 dB
最大输入失调电压:4.5 µVJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
湿度敏感等级:1负供电电压上限:-5.5 V
标称负供电电压 (Vsup):-5 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:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
座面最大高度:1.75 mm标称压摆率:2800 V/us
子类别:Operational Amplifier供电电压上限:5.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:AUTOMOTIVE端子面层:MATTE TIN
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:40
宽度:3.9 mmBase Number Matches:1

ADA4857-1YRZ-R7 数据手册

 浏览型号ADA4857-1YRZ-R7的Datasheet PDF文件第13页浏览型号ADA4857-1YRZ-R7的Datasheet PDF文件第14页浏览型号ADA4857-1YRZ-R7的Datasheet PDF文件第15页浏览型号ADA4857-1YRZ-R7的Datasheet PDF文件第17页浏览型号ADA4857-1YRZ-R7的Datasheet PDF文件第18页浏览型号ADA4857-1YRZ-R7的Datasheet PDF文件第19页 
ADA4857-1/ADA4857-2  
APPLICATIONS INFORMATION  
PD PIN OPERATION  
CAPACITIVE LOAD CONSIDERATIONS  
The PD pin is used to power down the chip, which reduces the  
quiescent current and the overall power consumption. It is low  
enabled which means that the chip is on with full power when  
the PD pin input voltage is low (see Table 8). Note that PD  
does not put the output in a high-Z state, which means that  
the ADA4857 should not be used as a multiplexer.  
When driving a capacitive load, RSNUB is used to reduce the  
peaking (see Figure 45). An optimum resistor value of 40 Ω is  
found to maintain the peaking within 1 dB for any capacitive  
load up to 40 pF.  
RECOMMENDED VALUES FOR VARIOUS GAINS  
Table 9 provides a useful reference for determining various  
gains and associated performance. Resistors RF and RG are  
kept low to minimize their contribution to the overall noise  
performance of the amplifier.  
Table 8. PD Operation Table Guide  
PD Pin Voltage  
Supply Voltage  
Chip  
≤+0.8 V  
≥+3 V  
≤−1.7 V  
≥+0.5 V  
≤+0.8 V  
≥+3 V  
No connect  
5 V  
5 V  
Enabled  
Powered down  
Enabled  
Powered down  
Enabled  
Powered down  
Enabled  
2.5 V  
2.5 V  
+5 V  
+5 V  
All  
Table 9. Various Gain and Recommended Resistor Values Associated with Conditions; VS = 5 V, TA = 25°C, RL = 1 kΩ, RT = 49.9 Ω  
−3 dB SS BW (MHz),  
VOUT = 200 mV p-p  
Slew Rate (V/μs),  
VOUT = 2 V Step  
ADA4857 Voltage  
Noise (nV/√Hz), RTO  
Total System  
Noise (nV/√Hz), RTO  
Gain  
+1  
+2  
+5  
+10  
RF (Ω)  
0
499  
499  
499  
RG (Ω)  
N/A  
499  
124  
56.2  
850  
360  
90  
2350  
1680  
516  
4.4  
8.8  
22.11  
43.47  
4.49  
9.89  
23.49  
45.31  
43  
213  
Rev. 0 | Page 16 of 20  
 
 
 

ADA4857-1YRZ-R7 替代型号

型号 品牌 替代类型 描述 数据表
ADA4857-1YRZ ADI

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