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| 型号： | AD586TQ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/16页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 5V 8-CERDIP |
| 标准包装： | 1 |
| 基准类型： | 串联，精度 |
| 输出电压： | 5V |
| 容差： | ±2.5mV |
| 温度系数： | 10ppm/°C |
| 输入电压： | 10.8 V ~ 36 V |
| 通道数： | 1 |
| 电流 - 静态： | 3mA |
| 电流 - 输出： | 10mA |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-CERDIP |
| 包装： | 管件 |
AD586
THEORY OF OPERATION
The AD586 consists of a proprietary buried Zener diode refer-
ence, an amplifier to buffer the output, and several high stability
V IN
2
V IN
This design results in a high precision monolithic 5 V output
reference with initial offset of 2.0 mV or less. The temperature
compensation circuitry provides the device with a temperature
coefficient of under 2 ppm/°C.
OPTIONAL
NOISE
REDUCTION
CAPACITOR
C N
1 μ F
8
AD586
NOISE
REDUCTION
GND
4
V O 6
TRIM 5
OUTPUT
10k ?
Using the bias compensation resistor between the Zener output
and the noninverting input to the amplifier, a capacitor can be
added at the noise reduction pin (Pin 8) to form a low-pass
filter and reduce the noise contribution of the Zener to the
circuit.
V IN NOISE REDUCTION
2 8
AD586
Figure 6. Optional Fine-Trim Configuration
NOISE PERFORMANCE AND REDUCTION
The noise generated by the AD586 is typically less than 4 μV p-p
over the 0.1 Hz to 10 Hz band. Noise in a 1 MHz bandwidth is
approximately 200 μV p-p. The dominant source of this noise is
the buried Zener, which contributes approximately 100 nV/√Hz.
R Z1
R S
shows the 0.1 Hz to 10 Hz noise of a typical AD586. The noise
measurement is made with a band-pass filter made of a 1-pole
R Z2
A1
6
V OUT
high-pass filter with a corner frequency at 0.1 Hz, and a 2-pole
R F
R I
R T
5
TRIM
low-pass filter with a corner frequency at 12.6 Hz, to create a
filter with a 9.922 Hz bandwidth.
If further noise reduction is desired, an external capacitor can
4
GND
NOTES
1. PINS 1, 3, AND 7 ARE INTERNAL TEST POINTS.
MAKE NO CONNECTIONS TO THESE POINTS.
Figure 5. Functional Block Diagram
APPLYING THE AD586
The AD586 is simple to use in virtually all precision reference
be added between the noise reduction pin and ground, as
shown in Figure 6. This capacitor, combined with the 4 k? R S
and the Zener resistances, forms a low-pass filter on the output
of the Zener cell. A 1 μF capacitor will have a 3 dB point at
12 Hz, and will reduce the high frequency (to 1 MHz) noise to
about 160 μV p-p. Figure 8 shows the 1 MHz noise of a typical
AD586, both with and without a 1 μF capacitor.
applications. When power is applied to Pin 2 and Pin 4 is
grounded, Pin 6 provides a 5 V output. No external components
are required; the degree of desired absolute accuracy is achieved
simply by selecting the required device grade. The AD586
requires less than 3 mA quiescent current from an operating
supply of 12 V or 15 V.
An external fine trim may be desired to set the output level to
exactly 5.000 V (calibrated to a main system reference). System
calibration may also require a reference voltage that is slightly
different from 5.000 V, for example, 5.12 V for binary applica-
can offset the output by as much as 300 mV with minimal effect
on other device characteristics.
Rev. G | Page 7 of 16
1 μ F
1 μ F
Figure 7. 0.1 Hz to 10 Hz Noise
5 s
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相关代理商/技术参数 |
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|---|---|
| AD586TQ/883B | 制造商:Analog Devices 功能描述:V-Ref Precision 5V 10mA 8-Pin CDIP Tube 制造商:Analog Devices 功能描述:V-REF PRECISION 5V 10MA 8CDIP - Rail/Tube 制造商:Analog Devices 功能描述:IC - HI PREC. 5V REF. IC 制造商:Analog Devices 功能描述:IC HI PRECISION VOLT REF 5V 制造商:Analog Devices Inc. 功能描述:Voltage & Current References IC - HI PREC. 5V REF. IC 制造商:Analog Devices Inc. 功能描述:Voltage & Current References IC HI PREC 5V REF |
| AD586TQ/883B2 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 5 V Reference |
| AD586TQ883B2 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 5 V Reference |
| AD587 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 10 V Reference |
| AD587JCHIPS | 制造商:AD 制造商全称:Analog Devices 功能描述:High Precision 10 V Reference |
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