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參數資料
| 型號： | AD7665ASTRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 16-Bit, 570 kSPS CMOS ADC |
| 中文描述： | 4-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48 |
| 封裝： | LOW PROFILE, MS-026BBC, QFP-48 |
| 文件頁數： | 5/24頁 |
| 文件大小： | 348K |
| 代理商： | AD7665ASTRL |
REV. 0
AD7665
–5–
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 AD7665 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.
WARNING!
ESD SENSITIVE DEVICE
I
OH
500 A
1.6mA
I
OL
TO OUTPUT
PIN
1.4V
C
60pF
1
NOTE:
1
IN SERIAL INTERFACE MODES, THE SYNC, SCLK, AND
SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD
C
L
OF 10pF; OTHERWISE, THE LOAD IS 60pF MAXIMUM.
Figure 1. Load Circuit for Digital Interface Timing, SDOUT,
SYNC, SCLK Outputs, C
L
= 10 pF
t
DELAY
t
DELAY
2V
0.8V
0.8V
0.8V
2V
2V
Figure 2. Voltage Reference Levels for Timing
PIN CONFIGURATION
48-Lead LQFP
(ST-48)
36
35
34
33
32
31
30
29
28
27
26
25
13 14 15 16 17 18 19 20 21 22 23 24
D
I
1
2
3
4
5
6
7
8
9
10
11
12
48 47 46 45 44
39 38 37
43 42 41 40
PIN 1
TOP VIEW
(Not to Scale)
AGND
CNVST
PD
RESET
CS
RD
DGND
BUSY
D15
D14
D13
D12
AGND
AVDD
NC
BYTESWAP
OB/
2C
WARP
IMPULSE
SER/
PAR
NC = NO CONNECT
D0
D1
D2/DIVSCLK[0]
D3/DIVSCLK[1]
AD7665
D
D
D
O
O
D
D
D
D
D
D
N
N
N
N
N
I
I
I
I
I
R
R
ORDERING GUIDE
Model
Temperature Range
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Package Description
Package Option
AD7665AST
AD7665ASTRL
EVAL-AD7665CB
1
EVAL-CONTROL BRD2
2
Quad Flatpack (LQFP)
Quad Flatpack (LQFP)
Evaluation Board
Controller Board
ST-48
ST-48
NOTES
1
This board can be used as a stand-alone evaluation board or in conjunction with the EVAL-CONTROL BRD2 for evaluation/demonstration purposes.
2
This board allows a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
ABSOLUTE MAXIMUM RATINGS
1
Analog Inputs
IND
2
, INC
2
, INB
2
. . . . . . . . . . . . . . . . . . . –11 V to +30 V
INA, REF, INGND, REFGND
. . . . . . . . . . . . . . . . . . . . AGND – 0.3 V to AVDD + 0.3 V
Ground Voltage Differences
AGND, DGND, OGND . . . . . . . . . . . . . . . . . . . . .
±
0.3 V
Supply Voltages
AVDD, DVDD, OVDD . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
AVDD to DVDD,
AVDD to OVDD . . . . . . . . . . . . .
±
7 V
DVDD to OVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
7 V
Digital Inputs . . . . . . . . . . . . . . . –0.3 V to DVDD + 0.3 V
Internal Power Dissipation
3
. . . . . . . . . . . . . . . . . . . 700 mW
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature Range
(Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . 300
°
C
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; 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.
2
See Analog Input section.
3
Specification is for device in free air: 48-Lead LQFP:
θ
JA
= 91
°
C/W,
θ
JC
= 30
°
C/W.
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