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参数资料
| 型号： | AD580TH |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/8页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 2.5V TO-52-3 |
| 标准包装： | 1 |
| 基准类型： | 串联，精度 |
| 输出电压： | 2.5V |
| 容差： | ±10mV |
| 温度系数： | 25ppm/°C |
| 输入电压： | 4.5 V ~ 30 V |
| 通道数： | 1 |
| 电流 - 静态： | 1.5mA |
| 电流 - 输出： | 10mA |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-205AA，TO-5-3 金属罐 |
| 供应商设备封装： | TO-52-3 |
| 包装： | 散装 |
| 产品目录页面： | 795 (CN2011-ZH PDF) |
AD580
The consistent voltage versus temperature performance of a
typical AD580 is shown in Figure 7. Note that the characteristic
is quasi-parabolic, not the possible S type characteristics of
classical Zener references. This parabolic characteristic permits
a maximum output deviation specification over the device’s full
operating temperature range, rather than just at 3 to 5 discrete
temperatures.
2.51
2.50
1mV
100 μ V
10 μ V
2.49
MAXIMUM
VOLTAGE CHANGE
FROM 0 ° C TO 70 ° C
0
100
1k
10k
FREQUENCY (Hz)
100k
1M
Figure 9. Peak-to-Peak Output Noise vs. Frequency
2.48
2.47
2.46
–55
–30
0
25 50
75
100
125
TEMPERATURE ( ° C)
Figure 7. Typical AD580K Output Voltage vs. Temperature
The AD580M guarantees a maximum deviation of 1.75 mV
over the 0°C to 70°C temperature range. This can be shown to
be equivalent to 10 ppm/°C average maximum; i.e.,
× = 10 ppm / ° C max average
1 . 75 mV max
70 ° C
1
2 . 5 V
500 μ A
5V
Figure 10. Input Current vs. Input Voltage (Integral Loads)
The AD580 typically exhibits a variation of 1.5 mV over the
power supply range of 7 V to 30 V. Figure 8 is a plot of AD580
line rejection versus frequency.
NOISE PERFORMANCE
1 Hz (3 dB point) to a 3 dB high end shown on the horizontal
axis. Peak-to-peak noise from 1 Hz to 1 MHz is approximately
600 μV.
140
THE AD580 AS A CURRENT LIMITER
The AD580 represents an excellent alternative to current limiter
diodes that require factory selection to achieve a desired
current. This approach often results in temperature coefficients
of 1%/C. The AD580 approach is not limited to a specially
selected factory set current limit; it can be programmed from
1 mA to 10 mA with the insertion of a single external resistor.
The approximate temperature coefficient of current limit for the
AD580 used in this mode is 0.13%/°C for I LIM = 1 mA and
130
120
110
100
e = 23V p-p
E = 18.5V
AD580
k e OUT p-p
0.01%/°C for I LIM = 13 mA (see Figure 11). Figure 10 displays
the high output impedance of the AD580 used as a current
limiter for I LIM = 1, 2, 3, 4, and 5 mA.
90
80
70
60
50
40
E IN COMPOSITE (17V ≤ V IN ≤ 30V)
V+
AD580
OUTPUT
30
20
10
V–
2.5V
R
LOAD
i ?
2.5V
R
+ 1mA
0
10
100
1k
10k
100k
BOTTOM VIEW OF
2.5V PRECISION
LINE FREQUENCY (Hz)
Figure 8. AD580 Line Rejection Plot
Rev. B | Page 6 of 8
REFERENCE CIRCUIT
IN TO-52 CASE
Figure 11. A Two-Component Precision Current Limiter
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD580TH/883B | 制造商:Rochester Electronics LLC 功能描述:IC - 2.5V REFERENCE IC - Bulk 制造商:Analog Devices 功能描述: |
| AD580TH/883BQ | 制造商:AD 功能描述:_ |
| AD580TH/HR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| AD580TH883BQ | 制造商:AD 功能描述:_ |
| AD580U | 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 2.5 V IC Reference |
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