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AD7665AST Datasheet(PDF) 5 Page - Analog Devices

No. de pieza AD7665AST
Descripción Electrónicos  16-Bit, 570 kSPS CMOS ADC
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD7665AST Datasheet(HTML) 5 Page - Analog Devices

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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
IOH
500 A
1.6mA
IOL
TO OUTPUT
PIN
1.4V
CL
60pF1
NOTE:
1IN SERIAL INTERFACE MODES, THE SYNC, SCLK, AND
SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD
CL OF 10pF; OTHERWISE, THE LOAD IS 60pF MAXIMUM.
Figure 1. Load Circuit for Digital Interface Timing, SDOUT,
SYNC, SCLK Outputs, CL = 10 pF
t
DELAY
t
DELAY
0.8V
0.8V
0.8V
2V
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
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
IDENTIFIER
TOP VIEW
(Not to Scale)
AGND
CNVST
PD
RESET
CS
RD
DGND
AGND
AVDD
NC
BYTESWAP
OB/
2C
WARP
IMPULSE
NC = NO CONNECT
SER/
PAR
D0
D1
D2/DIVSCLK[0]
BUSY
D15
D14
D13
AD7665
D3/DIVSCLK[1]
D12
ORDERING GUIDE
Model
Temperature Range
Package Description
Package Option
AD7665AST
–40
°C to +85°C
Quad Flatpack (LQFP)
ST-48
AD7665ASTRL
–40
°C to +85°C
Quad Flatpack (LQFP)
ST-48
EVAL-AD7665CB
1
Evaluation Board
EVAL-CONTROL BRD2
2
Controller Board
NOTES
1This board can be used as a stand-alone evaluation board or in conjunction with the EVAL-CONTROL BRD2 for evaluation/demonstration purposes.
2This 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, INC2, INB2 . . . . . . . . . . . . . . . . . . . –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 Dissipation3
. . . . . . . . . . . . . . . . . . . 700 mW
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150
°C
Storage Temperature Range . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature Range
(Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . 300
°C
NOTES
1Stresses 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.
2See Analog Input section.
3Specification is for device in free air: 48-Lead LQFP:
θ
JA = 91
°C/W, θ
JC = 30
°C/W.


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