參數(shù)資料
型號: AD587KR
廠商: ANALOG DEVICES INC
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: High Precision 10 V Reference
中文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 10 V, PDSO8
封裝: MS-012AA, SOIC-8
文件頁數(shù): 5/8頁
文件大?。?/td> 116K
代理商: AD587KR
AD587
REV. D
–5–
DYNAMIC PERFORMANCE
The output buffer amplifier is designed to provide the AD587
with static and dynamic load regulation superior to less com-
plete references.
Many A/D and D/A converters present transient current loads
to the reference, and poor reference response can degrade the
converter’s performance.
Figure 6 displays the characteristics of the AD587 output ampli-
fier driving a 0 mA to 10 mA load.
Output turn-on time is modified when an external noise reduc-
tion capacitor is used. When present, this capacitor acts as an
additional load to the internal Zener diode’s current source, re-
sulting in a somewhat longer turn-on time. In the case of a 1
μ
F
capacitor, the initial turn-on time is approximately 400 ms to
0.01% (see Figure 5c).
a. Electrical Turn-On
b. Extended Time Scale
c. Turn-On with 1
μ
F C
N
Figure 5. Turn-On Characteristics
Figure 6a. Transient Load Test Circuit
Figure 6b. Large-Scale Transient Response
Figure 6c. Fine Scale Settling for Transient Load
AD587
V
OUT
7.0V
1k
V
L
10V
0V
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AD587KRZ 制造商:Analog Devices 功能描述:Voltage Reference IC
AD587KRZ 制造商:Analog Devices 功能描述:VOLTAGE REFERENCE 10V