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AD8250 PDF预览

AD8250

更新时间: 2024-02-27 23:48:58
品牌 Logo 应用领域
亚德诺 - ADI 仪表放大器
页数 文件大小 规格书
8页 125K
描述
12MHz 20V/us G=1,2,5,10 Programmable Gain iCMOS Instrumentation Amplifier

AD8250 技术参数

是否Rohs认证: 符合生命周期:Obsolete
Reach Compliance Code:compliant风险等级:5.84
放大器类型:INSTRUMENTATION AMPLIFIERJESD-30 代码:R-PDSO-G10
功能数量:1端子数量:10
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP10,.19,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH电源:+-5/+-12 V
认证状态:Not Qualified子类别:Instrumentation Amplifiers
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
Base Number Matches:1

AD8250 数据手册

 浏览型号AD8250的Datasheet PDF文件第2页浏览型号AD8250的Datasheet PDF文件第3页浏览型号AD8250的Datasheet PDF文件第4页浏览型号AD8250的Datasheet PDF文件第5页浏览型号AD8250的Datasheet PDF文件第6页浏览型号AD8250的Datasheet PDF文件第8页 
Preliminary Technical Data  
AD8250  
PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS  
TRANSPARENT GAIN SETTING MODE:  
-IN  
DGND  
-VS  
1
2
3
4
5
10 +IN  
9
8
7
6
VREF  
In this mode, the gain is set by toggling A0 and A1 to HIGH or  
LOW. To enable transparent mode, tie to –Vs. This  
AD8250  
+VS  
TOP VIEW  
WR  
(Not to Scale)  
A0  
VOUT  
WR  
configures the AD8250 to change gains when A0 and A1 are set  
according to Table 4.  
A1  
Table 4. . Transparent Mode Gain Settings  
Figure 4. 10-Lead MSOP  
G
WR A1 A0  
-Vs LO LO  
-Vs LO HI  
-Vs HI LO  
1
2
5
10 -Vs HI HI  
WRITE ENABLE GAIN SETTING MODE:  
In this mode, the gains are changed only during the negative  
edge of the  
strobe. So for instance, the gain is determined  
WR  
Table 3. Pin Function Descriptions—  
10-Lead MSOP(ARM PACKAGE)  
by the two bit value held on A0 and A1 at the time the  
strobe transitions from HIGH to LOW.  
WR  
Pin No.  
Name  
Description  
1
-IN  
Inverting Input Terminal (True  
differential input)  
t
t
WR-LO  
WR-HI  
2
3
4
5
6
7
8
9
DGND  
-Vs  
Digital Ground.  
WR  
Negative Supply Terminal  
Gain Setting Pin (LSB)  
Gain Setting Pin (MSB)  
Write Enable  
t
t
HD  
SU  
A0  
A0, A1  
A1  
WR  
VOUT  
+Vs  
VREF  
Output Terminal  
Table 5. : Write Enable Mode Gain Settings  
Gain (changes to) WR A1 A0  
Positive Supply Terminal  
Reference Voltage Terminal (drive this  
pin with a low impedance voltage  
source to level shift the output signal)  
1
HI -> LO LO LO  
HI -> LO LO HI  
HI -> LO HI LO  
HI -> LO HI HI  
10  
+IN  
Non-inverting Input Terminal (True  
differential input)  
2
5
10  
GAIN SETTING  
The AD8250s gains are set digitally. The A0 and A1 pins must  
be set either HIGH or LOW with respect to digital ground,  
No Change  
No Change  
No Change  
X = don’t care  
LO->LO  
LO->HI  
HI-> HI  
X
X
X
X
X
X
DGND. The  
pin is a tri-state switch. It may be set to one of  
WR  
three levels, HIGH, LOW or to –VS. A HIGH signal is typically  
greater than 4V but less than 6V and a LOW signal is typically  
less than 1V but higher than DGND, 0V. Gains can be  
programmed using the following methods:  
.
Rev. PrB| Page 7 of 8  

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