參數(shù)資料
型號: AD7861
廠商: Analog Devices, Inc.
英文描述: 11-Bit Resolution Simultaneous Sampling A/D Converter(同時采樣11位A/D轉(zhuǎn)換器)
中文描述: 11位分辨率同時采樣的A / D轉(zhuǎn)換器(同時采樣11位的A / D轉(zhuǎn)換器)
文件頁數(shù): 3/6頁
文件大?。?/td> 257K
代理商: AD7861
AD7861
REV. A
–3–
Table I. AD7861 Timing Parameters (T
A
= –4
0
8
C to +85
°
C and V
DD
= +5 V unless otherwise noted)
Number
Symbol
AD7861 Timing Requirements
Min
Max
Units
1
2
3
4
5
6
7
8
9
10
11
12
t
su
csb_rdb
t
su
addr_rdb
t
dly
rdb_data
t
pwl
rdb
t
pwh
rdb
t
hd
rdb_data
t
hd
rdb_addr
t
hd
rdb_csb
t
per
clk
t
pwh
clk
t
pwl
clk
t
pwl
resetb
CS
Low Before Falling Edge of
RD
ADDR Valid Before Falling Edge of
RD
DATA Valid After Falling Edge of
RD
RD
Pulse Width, Low
RD
Pulse Width, High
DATA Hold After Rising Edge of
RD
ADDR Hold After Rising Edge of
RD
CS
Hold After Rising Edge of
RD
CLK Period
CLK Pulse Width, High
CLK Pulse Width, Low
RESET
Pulse Width, Low
0
0
25
25
10
0
0
80
20
20
2
×
tperclk
25
160
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
7, 8
3
1, 2
CLK
CS
A0–A1
RD
DATA
BUS
6
4
5
Figure 1. Clock and Reset Timing
9
10
11
CLK
12
CLK
RESET
Figure 2. Write Cycle Timing Diagram
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7861 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
ORDERING GUIDE
Model
Temperature Range
Package Option
AD7861AP
–40
°
C to +85
°
C
P-44A
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (V
DD
) . . . . . . . . . . . . . . . . . . –0.3 V to +7.0 V
Digital Input Voltage . . . . . . . . . . . . . . . . . . . . . –0.3 V to V
DD
Analog Input Voltage . . . . . . . . . . . . . . . . . . . . . –0.3 V to V
DD
Analog Reference Input Voltage . . . . . . . . . . . . –0.3 V to V
DD
Digital Output Voltage Swing . . . . . . . . . . . . . . –0.3 V to V
DD
Analog Reference Output Swing . . . . . . . . . . . . –0.3 V to V
DD
Operating Temperature . . . . . . . . . . . . . . . . . –40
°
C to +85
°
C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . +280
°
C
*
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
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