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参数资料
| 型号： | AD1587 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Precision Shunt Mode Voltage References(微功耗,精密电压基准) |
| 中文描述： | 精密并联模式电压基准（微功耗，精密电压基准） |
| 文件页数： | 11/11页 |
| 文件大小： | 107K |
| 代理商： | AD1587 |
–9–
AD1586/7/8/9
PRELIMINARY TECHNICAL INFORMATION
PRELIM. B, JUNE 96
Figure 11. Output Voltage Hysteresis Distribution
Figure 10. Residual Drift Error
REVERSE VOLTAGE HYSTERESIS
High performance industrial equipment manufacturers require
the AD1586/7/8/9 family to maintain consistent output voltage
errors at +25
°C after the references are operated over the full
temperature range. While all references exhibit a charactersitic
known as output voltage hysteresis, the AD1586/7/8/9 family is
designed to minimize this characteristic. This phenomena can be
quantified by measuring the change in the +25
°C output voltage
after temperature excursions from +85
°C to +25 °C, and -40 °C
to +25
°C. Figure 11 displays the distribution over 100 parts of
the AD1586 output voltage hysteresis.
TEMPERATURE -
°C
25
R
E
V
E
R
S
E
V
O
L
T
A
G
E
C
H
A
N
G
E
-p
p
m
45
65
85
105
125
+5
-15
-35
-55
0
I
R = 50 A, 150 A, 500 A
To successfully apply the AD1586/7/8/9 family of references, it is
important to understand the effects of the dynamic output
impedance. In Figure 12a, a voltage divider is formed by the
AD1586's output impedance and the external source impedance.
When using an external source resistor of approximately 25 k
(I
R = 100 A), X% of the noise from a 100 kHz switching power
supply is developed at the reference output. Figure 12b shows
the effect that varying the load capacitor on the reference output
has on the AD1586 noise performance. From this graph it is
apparent that a 1
F capacitor connected to the AD1586 output
will reduce the effect of power supply noise to less than X.XX %.
AC PERFORMANCE
Figure 12a. Output Impedance Test Circuit
Figure 9. Output Voltage vs. Temperature
VOLTAGE OUTPUT NONLINEARITY VERSUS
TEMPERATURE
When using a voltage reference with data converters it is
important to understand the impact that temperature drift can
have on the converter's performance. The nonlinearity of the
reference output drift represents additional error that can not
easily be calibrated out of the overall system. To better under-
stand the impact that such a drift can have on a data converter
refer to figure 10 where the measured drift characteristic is
normalized to the end point average drift. The residual drift
error of the AD1586 of approximately XXX ppm demonstrates
that this family of references is compatible with systems that
require XX-bit accurate temperature performance.
Figure 12b. Output Impedance vs. Frequency
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD1589444WG | 制造商:Analog Devices 功能描述: |
| AD158FL | 制造商:Johnson Components 功能描述:ADAPT - Bulk 制造商:EMERSON CONNECTIVITY SOLUTIONS 功能描述:Adapter, TRS Female to TRS Female, 4 Lug |
| AD-15FT4-G1 | 制造商:Pan Pacific 功能描述: |
| AD-15FT6-BK2 | 制造商:Pan Pacific 功能描述:Conn RJ-45-D-Sub Adapter F/F 6/15 POS ST 1 Port |
| AD-15FT6-G1 | 制造商:Pan Pacific 功能描述:Conn RJ-45-D-Sub Adapter F/F 6/15 POS ST 1 Port |
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