參數(shù)資料
型號(hào): AD7809BST
廠商: ANALOG DEVICES INC
元件分類: DAC
英文描述: +3.3 V to +5 V Quad/Octal 10-Bit DACs
中文描述: PARALLEL, 8 BITS INPUT LOADING, 1.5 us SETTLING TIME, 10-BIT DAC, PQFP44
封裝: PLASTIC, TQFP-44
文件頁(yè)數(shù): 4/28頁(yè)
文件大?。?/td> 300K
代理商: AD7809BST
AD7804/AD7805/AD7808/AD7809
AD7804/AD7808 TIMING CHARACTERISTICS
1
REV. A
–4–
(V
DD
= 3.3 V
6
10% to 5 V
6
10%; AGND = DGND = 0 V; Reference =
Internal Reference. All specifications T
MIN
to T
MAX
unless otherwise noted.)
Limit at T
MIN
, T
MAX
All Versions
Parameter
Units
Description
t
1
t
2
t
3
t
4
t
5
t
6
t
6A
t
7
100
40
40
30
30
5
6
90
20
40
100
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns max
ns min
ns min
ns min
CLKIN Cycle Time
CLKIN High Time
CLKIN Low Time
FSIN
Setup Time
Data Setup Time
Data Hold Time
LDAC
Hold Time
FSIN
Hold Time
t
8
t
9
LDAC
,
CLR
Pulsewidth
LDAC
Setup Time
NOTES
1
Sample tested during initial release and after any redesign or process change that may affect this parameter. All input signals are specified with tr = tf = 5 ns and
timed from a voltage of (V
IL
+ V
IH
)/2.
Specifications subject to change without notice.
CLKIN(I)
FSIN(I)
SDIN(I)
DB15
t
2
t
3
t
7
t
8
CLR
LDAC
1
t
5
t
6A
t
1
t
9
t
8
t
4
t
5
t
6
DB0
1
TIMING REQUIREMENTS FOR SYNCHRONOUS
LDAC
UPDATE OR
LDAC
MAY BE TIED PERMANENTLY LOW IF REQUIRED.
2
TIMING REQUIREMENTS FOR ASYNCHRONOUS
LDAC
UPDATE.
LDAC
2
Figure 1. Timing Diagram for AD7804 and AD7808
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