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D饧际?推荐几种比较精准的基准源
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问 推荐几种比较精准的基准源
答
1: 温度系数是非常重要的有时基于初始精度。ADI电压基准-------------
这个帖子很大,前后编辑时间不下一小时…… 答 2: 能不能给点便宜谢这位大哥了,能不能推荐点便宜的啊,我一般是买不起AD的东西的 答 3: 便宜没好货,或者说很难找到好货^_^可以从设计上着手……
比如我看到过一个测量温度的电路,将基准电阻和铂电阻串联到一起,然后接到恒流源上,它们两端分别取出信号电压和基准电压,接到具有差分输入接口的AD上,这样一来,就对恒流源精度要求不高了,用几毛钱的TL431就可以满足要求了。
Part# |
Vout |
Initial Accuracy (%) |
Ref Out TC (ppm/C) |
0.1-10 Hz Noise (uV p-p) |
Ref Output Current (mA) |
SupplyVoltage Range(V) |
TempRange(s) |
Supply Current |
Package |
Price* (1000-4999) |
AD588 |
10 |
0.01 |
1.5 |
6 |
10 |
Vdd-Vss = (Vout+2) to +36 |
-25 to +85, 0 to +70 |
10mA |
DIP |
$13.66 |
AD688 |
10 |
0.02 |
1.5 |
6 |
10 |
Vdd-Vss = (Vout+2) to 36 |
-40 to +85, -55 to +125 |
12mA |
DIP, SOIC |
$8.25 |
REF43 |
2.5 |
0.02 |
25 |
4 |
20 |
+4.5 to +40 |
-40 to +85 |
450uA |
DIP, SOIC |
$3.32 |
AD780 |
2.5 |
0.04 |
3 |
4 |
10 |
+4 to +36 |
-40 to +85, -55 to +125 |
1mA |
DIP, SOIC |
$3.80 |
ADR441 |
2.5 |
0.04 |
1 |
1.2 |
10 |
+3 to +18 |
-40 to +125 |
3.75mA |
DIP, MSOP, SOIC |
$2.65 |
ADR431 |
2.5 |
0.04 |
1 |
3.5 |
30 |
+4.5 to +18 |
-40 to +125 |
800uA |
MSOP, SOIC |
$2.65 |
ADR421 |
2.5 |
0.04 |
1 |
1.75 |
10 |
+4.5 to +18 |
-40 to +125 |
500uA |
MSOP, SOIC |
$2.54 |
ADR443 |
3 |
0.04 |
1 |
1.4 |
10 |
+3.5 to +18 |
-40 to +125 |
3.75mA |
MSOP, SOIC |
$2.65 |
ADR423 |
3 |
0.04 |
1 |
1 |
10 |
+5.0 to +18 |
-40 to +125 |
500uA |
MSOP, SOIC |
$2.54 |
ADR444 |
4.096 |
0.04 |
1 |
1.8 |
10 |
+4.6 to +18 |
-40 to +125 |
3.75mA |
MSOP, SOIC |
$2.65 |
ADR434 |
4.096 |
0.04 |
1 |
6.25 |
30 |
+6.1 to +18 |
-40 to +125 |
800uA |
MSOP, SOIC |
$2.65 |
ADR439 |
4.5 |
0.04 |
1 |
7.5 |
30 |
+6.5 to +18 |
-40 to +125 |
800uA |
MSOP, SOIC |
$2.65 |
ADR445 |
5 |
0.04 |
1 |
2.25 |
10 |
+5.5 to +18 |
-40 to +125 |
3.75mA |
MSOP, SOIC |
$2.65 |
ADR435 |
5 |
0.04 |
1 |
8 |
30 |
+7.0 to +18 |
-40 to +125 |
800uA |
MSOP, SOIC |
$2.65 |
ADR425 |
5 |
0.04 |
1 |
3.4 |
10 |
+7.0 to +18 |
-40 to +125 |
500uA |
MSOP, SOIC |
$2.54 |
AD586 |
5 |
0.04 |
2 |
4 |
10 |
+6.0 to +36 |
-55 to +125, 0 to +70 |
3mA |
DIP, SOIC |
$2.50 |
REF194 |
4.5 |
0.044 |
2 |
45 |
30 |
+4.6 to +15 |
-40 to +85 |
45uA |
DIP, SOIC |
$1.24 |
AD584 |
+2.5/+5/+7.5/+10 Prog |
0.05 |
5 |
50 |
10 |
+4.5 to +30 |
-55 to +125, 0 to +70 |
1mA |
DIP, TO-52 |
$2.74 |
AD581 |
10 |
0.05 |
5 |
40 |
10 |
+12 to +30 |
-55 to +125, 0 to +70 |
1mA |
TO-52 |
$3.72 |
AD587 |
10 |
0.05 |
5 |
4 |
10 |
+13.5 to +36 |
-55 to +125, 0 to +70 |
4mA |
DIP, SOIC |
$2.29 |
ADR01 |
10 |
0.05 |
3 |
20 |
10 |
+12 to +40 |
-40 to +125, 0 to +70 |
1mA |
SC70, SOIC, TSOT |
$0.99 |
ADR440 |
2.048 |
0.05 |
1 |
1 |
10 |
+3 to +18 |
-40 to +125 |
3.75mA |
DIP, MSOP, SOIC |
$2.65 |
ADR420 |
2.048 |
0.05 |
1 |
1.75 |
10 |
+4.0 to +18 |
-40 to +125 |
500uA |
MSOP, SOIC |
$2.54 |
ADR430 |
2.048 |
0.05 |
1 |
3.5 |
30 |
+4.1 to +18 |
-40 to +125 |
800uA |
MSOP, SOIC |
$2.65 |
ADR433 |
3 |
0.05 |
1 |
3.75 |
30 |
+5.0 to +18 |
-40 to +125 |
800uA |
MSOP, SOIC |
$2.65 |
REF198 |
4.096 |
0.05 |
2 |
40 |
30 |
+3.4 to +15 |
-40 to +85 |
45uA |
DIP, SOIC, TSSOP |
$1.24 |
ADR02 |
5 |
0.06 |
3 |
10 |
10 |
+7.0 to +40 |
-40 to +125, 0 to +70 |
1mA |
SC70, SOIC, SOT23, TSOT |
$1.05 |
ADR293 |
5 |
0.06 |
3 |
15 |
5 |
+6.0 to +15 |
-40 to +125 |
15uA |
SOIC, TSSOP |
$1.99 |
ADR292 |
4.096 |
0.07 |
3 |
12 |
5 |
+4.5 to +18 |
-40 to +125 |
12uA |
SOIC, TSSOP |
$1.99 |
AD1580 |
1.2 |
0.08 |
50 |
5 |
n/a |
n/a, shunt ref |
-40 to +85 |
n/a |
SC70, SOT23 |
$0.68 |
AD1582 |
2.5 |
0.08 |
50 |
70 |
5 |
+2.7 to +12 |
-40 to +125 |
70uA |
SOT23 |
$0.69 |
ADR291 |
2.5 |
0.08 |
3 |
8 |
5 |
+3 to +15 |
-40 to +125 |
12uA |
SOIC, TSSOP |
$1.95 |
REF192 |
2.5 |
0.08 |
2 |
25 |
30 |
+2.6 to +15 |
-40 to +85 |
45uA |
DIP, SOIC, TSSOP |
$1.24 |
ADR365 |
5 |
0.08 |
9 |
12.8 |
5 |
+5.3 to +15 |
-40 to +125 |
190uA |
TSOT |
$0.77 |
REF191 |
2.048 |
0.1 |
2 |
20 |
30 |
+2.3 to +15 |
-40 to +85 |
45uA |
DIP, SOIC |
$1.24 |
ADR03 |
2.5 |
0.1 |
3 |
10 |
10 |
+4.5 to +40 |
-40 to +125 |
1mA |
SC70, SOIC, TSOT |
$1.05 |
ADR363 |
3 |
0.1 |
9 |
8.7 |
5 |
+3.3 to +15 |
-40 to +125 |
190uA |
TSOT |
$0.77 |
ADR06 |
3 |
0.1 |
3 |
10 |
10 |
+5 to +40 |
-40 to +125 |
0.65mA |
SC70, SOIC, TSOT |
$0.99 |
AD1583 |
3 |
0.1 |
50 |
85 |
5 |
+3.2 to +12 |
-40 to +125 |
70uA |
SOT23 |
$0.66 |
ADR364 |
4.096 |
0.1 |
9 |
11 |
5 |
+4.4 to +15 |
-40 to +125 |
190uA |
TSOT |
$0.77 |
AD1584 |
4.096 |
0.1 |
50 |
110 |
5 |
+4.3 to +12 |
-40 to +125 |
70uA |
SOT23 |
$0.66 |
AD1585 |
5 |
0.1 |
50 |
140 |
5 |
+5.2 to +12 |
-40 to +125 |
70uA |
SOT23 |
$0.67 |
ADR395 |
5 |
0.1 |
9 |
8 |
5 |
+5.3 to +15 |
-40 to +125 |
120uA |
TSOT |
$0.77 |
ADR127 |
1.25 |
0.12 |
3 |
5 |
5 |
+2.7 to +18 |
-40 to +125 |
125uA |
TSOT |
$0.77 |
ADR121 |
2.5 |
0.12 |
3 |
10 |
5 |
+2.8 to +18 |
-40 to +125 |
125uA |
TSOT |
$0.77 |
ADR361 |
2.5 |
0.12 |
9 |
8.25 |
5 |
+2.8 to +15 |
-40 to +125 |
190uA |
TSOT |
$0.77 |
ADR392 |
4.096 |
0.12 |
9 |
7 |
5 |
+4.3 to +15 |
-40 to +125 |
120uA |
TSOT |
$0.77 |
ADR125 |
5 |
0.12 |
3 |
20 |
5 |
+5.3 to +18 |
-40 to +125 |
125uA |
TSOT |
$0.77 |
ADR366 |
3.3 |
0.125 |
9 |
9.3 |
5 |
+3.6 to +15 |
-40 to +125 |
190uA |
TSOT |
$0.77 |
ADR360 |
2.048 |
0.15 |
9 |
6.8 |
5 |
+2.35 to +15 |
-40 to +125 |
190uA |
TSOT |
$0.77 |
REF02 |
5 |
0.15 |
3 |
10 |
10 |
+7.0 to +40 |
-40 to +85, -55 to +125, 0 to +70 |
1.4mA |
DIP, SOIC, TO-99 |
$1.09 |
ADR391 |
2.5 |
0.16 |
9 |
5 |
5 |
+2.8 to +18 |
-40 to +125 |
120uA |
TSOT |
$0.77 |
ADR390 |
2.048 |
0.19 |
9 |
5 |
5 |
+2.5 to +15 |
-40 to +125 |
120uA |
TSOT |
$0.77 |
ADR1500 |
1.2875 |
0.2 |
170 |
5 |
n/a |
n/a, shunt reference |
-40 to +85 |
n/a |
SC70 |
** |
ADR370 |
2.048 |
0.2 |
30 |
70 |
5 |
+2.3 to +15 |
-40 to +125 |
72uA |
SOT23 |
$0.77 |
ADR520 |
2.048 |
0.2 |
40 |
14 |
n/a |
n/a, shunt reference |
-40 to +85 |
50uA |
SC70, SOT23 |
$0.43 |
AD680 |
2.5 |
0.2 |
20 |
8 |
10 |
+4.5 to +36 |
-40 to +85, 0 to +70 |
250uA |
DIP, SOIC, TO-92 |
$1.65 |
ADR525 |
2.5 |
0.2 |
40 |
14 |
n/a |
n/a, shunt reference |
-40 to +85 |
50uA |
SC70, SOT23 |
$0.43 |
REF03 |
2.5 |
0.2 |
10 |
6 |
20 |
+4.5 to +33 |
-40 to +85 |
1.4mA |
DIP, SOIC |
$1.09 |
ADR530 |
3 |
0.2 |
40 |
16 |
n/a |
n/a, shunt ref |
-40 to +85 |
50uA |
SC70, SOT23 |
$0.43 |
ADR540 |
4.096 |
0.2 |
40 |
18 |
n/a |
n/a, shunt ref |
-40 to +85 |
50uA |
SC70, SOT23 |
$0.43 |
REF195 |
5 |
0.2 |
2 |
50 |
30 |
+5.1 to +15 |
-40 to +85 |
45uA |
DIP, SOIC, TSSOP |
$1.24 |
ADR550 |
5 |
0.2 |
40 |
18 |
n/a |
n/a, shunt reference |
-40 to +85 |
50uA |
SC70, SOT23 |
$0.43 |
ADR380 |
2.048 |
0.24 |
5 |
5 |
5 |
+2.4 to +18 |
-40 to +85 |
120uA |
SOT23 |
$0.90 |
ADR381 |
2.5 |
0.24 |
3 |
5 |
5 |
+2.8 to +18 |
-40 to +85 |
120uA |
SOT23 |
$0.90 |
ADR318 |
1.8 |
0.27 |
5 |
5 |
5 |
+2.4 to +15 |
0 to +70 |
120uA |
SOT23 |
$1.25 |
ADR512 |
1.2 |
0.3 |
60 |
4 |
n/a |
n/a shunt ref |
-40 to +85 |
n/a |
SOT23 |
$0.41 |
REF01 |
10 |
0.3 |
3 |
30 |
10 |
+12 to +40 |
-40 to +85, -55 to +125 |
1.4mA |
DIP, SOIC, TO-99 |
$1.09 |
REF196 |
3.3 |
0.3 |
10 |
33 |
30 |
+3.4 to +15 |
-40 to +85 |
45uA |
SOIC, TSSOP |
$1.24 |
REF193 |
3 |
0.33 |
10 |
30 |
30 |
+3.2 to +15 |
-40 to +85 |
45uA |
SOIC |
$1.24 |
ADR510 |
1.0 |
0.35 |
70 |
4 |
n/a |
n/a, shunt ref |
-40 to +85 |
n/a |
SOT23 |
$0.67 |
ADR280 |
1.2 |
0.4 |
5 |
2.2 |
100 |
+2.4 to +6.0 |
-40 to +85 |
16uA |
SC70, SOT23 |
$0.68 |
AD580 |
2.5 |
0.4 |
10 |
8 |
10 |
+4.5 to +30 |
-55 to +125, 0 to +70 |
1.5mA |
TO-52 |
$2.40 |
AD589 |
1.2 |
1.2 |
10 |
5 |
n/a |
n/a, Shunt Type Reference |
-55 to +125, 0 to +70 |
50uA |
MetalCAN, SOIC |
$0.96 |
这个帖子很大,前后编辑时间不下一小时…… 答 2: 能不能给点便宜谢这位大哥了,能不能推荐点便宜的啊,我一般是买不起AD的东西的 答 3: 便宜没好货,或者说很难找到好货^_^可以从设计上着手……
比如我看到过一个测量温度的电路,将基准电阻和铂电阻串联到一起,然后接到恒流源上,它们两端分别取出信号电压和基准电压,接到具有差分输入接口的AD上,这样一来,就对恒流源精度要求不高了,用几毛钱的TL431就可以满足要求了。
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