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MAX4019 PDF预览

MAX4019

更新时间: 2024-01-31 01:51:17
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
12页 121K
描述
Low-Cost, High-Speed, Single-Supply, Gain of +2 Buffers with Rail-to-Rail Outputs in SOT23

MAX4019 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:SOIC
包装说明:SO-14针数:14
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.17
放大器类型:BUFFER最大平均偏置电流 (IIB):20 µA
标称带宽 (3dB):140 MHz最大输入失调电压:20000 µV
JESD-30 代码:R-PDSO-G14JESD-609代码:e0
长度:8.65 mm湿度敏感等级:1
负供电电压上限:标称负供电电压 (Vsup):
功能数量:3端子数量:14
最高工作温度:85 °C最低工作温度:-40 °C
最小输出电流:0.06 A封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP14,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):245电源:3.3/5/+-5 V
认证状态:Not Qualified座面最大高度:1.75 mm
标称压摆率:600 V/us子类别:Buffer Amplifier
最大压摆率:24 mA供电电压上限:12 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn85Pb15)
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:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

MAX4019 数据手册

 浏览型号MAX4019的Datasheet PDF文件第6页浏览型号MAX4019的Datasheet PDF文件第7页浏览型号MAX4019的Datasheet PDF文件第8页浏览型号MAX4019的Datasheet PDF文件第10页浏览型号MAX4019的Datasheet PDF文件第11页浏览型号MAX4019的Datasheet PDF文件第12页 
Lo w -Co s t , Hig h -S p e e d , S in g le -S u p p ly, Ga in o f +2  
Bu ffe rs w it h Ra il-t o -Ra il Ou t p u t s in S OT2 3  
719/MAX402  
0
20  
-1  
0
-2  
-20  
-3  
-40  
-4  
-5  
-6  
-60  
-80  
-100  
-120  
-140  
-160  
-7  
-8  
-9  
-10  
0
100  
200  
300  
400  
500  
0
100  
200  
300  
400  
500  
V (mV ABOVE V )  
IL  
EE  
V (mV ABOVE V )  
IL  
EE  
Figure 2. Enable Logic-Low Input Current vs. Enable Logic-  
Low Threshold  
Figure 4. Enable Logic-Low Input Current vs. Enable Logic-  
Low Threshold with 10kSeries Resistor  
the output-drive capability, since the buffers have a  
fixed voltage gain of +2 or -1.  
ENABLE  
10k  
For example, a 50load can typically be driven from  
40mV above V to 1.6V below V , or 40mV to 3.4V  
EE  
CC  
when operating from a single +5V supply. If the buffer is  
operated in the noninverting, gain of +2 configuration  
with the inverting input grounded, the effective input  
voltage range becomes 20mV to 1.7V, instead of the  
-100mV to 2.75V indicated by the Electrical Character-  
istics. Beyond the effective input range, the buffer out-  
put is a nonlinear function of the input, but it will not  
undergo phase reversal or latchup.  
IN+  
IN-  
EN_  
MAX40_ _  
OUT  
500Ω  
500Ω  
En a b le  
The MAX4019 has an enable feature (EN_) that allows  
the buffer to be placed in a low-power state. When the  
buffers are disabled, the supply current will not exceed  
550µA per buffer.  
Figure 3. Circuit to Reduce Enable Logic-Low Input Current  
In p u t Vo lt a g e Ra n g e a n d Ou t p u t S w in g  
The input range for the MAX4014 family extends from  
(V - 100mV) to (V  
- 2.25V). Input ground sensing  
EE  
CC  
As the voltage at the EN_ pin approaches the negative  
supply rail, the EN_ input current rises. Figure 2 shows  
a graph of EN_ input current versus EN_ pin voltage.  
Figure 3 shows the addition of an optional resistor in  
series with the EN pin, to limit the magnitude of the cur-  
rent increase. Figure 4 displays the resulting EN pin  
input current to voltage relationship.  
increases the dynamic range for single-supply applica-  
tions. The outputs drive a 2kload to within 60mV of  
the power-suply rails. With heavier loads, the output  
swing is reduced as shown in the Electrical Character-  
istics and the Typical Operating Characteristics. As the  
load increases, the input range is effectively limited by  
_______________________________________________________________________________________  
9

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