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AD817AREEL 参数 Datasheet PDF下载

AD817AREEL图片预览
型号: AD817AREEL
PDF下载: 下载PDF文件 查看货源
内容描述: [IC OP-AMP, 4000 uV OFFSET-MAX, 50 MHz BAND WIDTH, PDSO8, PLASTIC, SOIC-8, Operational Amplifier]
分类和应用: 放大器光电二极管
文件页数/大小: 12 页 / 212 K
品牌: ADI [ ADI ]
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AD817  
H IGH SP EED D AC BUFFER  
(10.24 V for a 1 kresistor). Note that since the DAC gener-  
ates a positive current to ground, the voltage at the amplifier  
output will be negative. A 100 series resistor between the  
noninverting amplifier input and ground minimizes the offset  
effects of op amp input bias currents.  
T he wide bandwidth and fast settling time of the AD817 make  
it a very good output buffer for high speed current output D/A  
converters like the AD668. As shown in Figure 38, the op amp  
establishes a summing node at ground for the DAC output. T he  
output voltage is determined by the amplifier’s feedback resistor  
+15V  
10µF  
TO ANALOG  
GROUND PLANE  
0.1µF  
1
MSB  
VCC 24  
23  
22  
21  
REFCOM  
REFIN1  
REFIN2  
2
3
1V NOMINAL  
REFERENCE INPUT  
10kΩ  
4
5
1kΩ  
I OUT 20  
100Ω  
ANALOG  
OUTPUT  
AD668  
DIGITAL  
INPUTS  
6
RLOAD  
19  
18  
17  
16  
AD817  
ANALOG GROUND PLANE  
7
ACOM  
LCOM  
IBPO  
ANALOG  
SUPPLY  
GROUND  
8
10µF  
9
0.1µF  
–15V  
10  
11  
12  
15  
14  
V
EE  
THCOM  
VTH  
1kΩ  
100pF  
+5V  
LSB  
13  
Figure 38. High Speed DAC Buffer  
O UTLINE D IMENSIO NS  
D imensions shown in inches and (mm).  
8-P in P lastic Mini-D IP  
(N-8)  
8-P in SO IC  
(SO -8)  
8
5
0.25  
(6.35)  
8
1
5
4
0.31  
(7.87)  
PIN 1  
0.1574 (4.00)  
0.1497 (3.80)  
PIN 1  
1
4
0.2440 (6.20)  
0.2284 (5.80)  
0.30 (7.62)  
REF  
0.39 (9.91) MAX  
0.1968 (5.00)  
0.1890 (4.80)  
0.035±0.01  
(0.89±0.25)  
0.0196 (0.50)  
0.0099 (0.25)  
x 45  
°
0.165±0.01  
(4.19±0.25)  
0.0688 (1.75)  
0.0532 (1.35)  
0.0098 (0.25)  
0.0040 (0.10)  
0.011±0.003  
(0.28±0.08)  
0.18±0.03  
(4.57±0.76)  
8
0
°
°
0.125  
(3.18)  
MIN  
0.0500 (1.27)  
0.0160 (0.41)  
0.0500  
(1.27)  
BSC  
0.0192 (0.49)  
0.0138 (0.35)  
0.0098 (0.25)  
0.0075 (0.19)  
15  
°
0°  
0.10  
(2.54)  
0.018±0.003  
(0.46±0.08)  
0.033  
(0.84)  
NOM  
SEATING  
PLANE  
BSC  
–12–  
REV. B  
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