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參數(shù)資料
型號(hào): AD7898AR-3
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: 5 V, 12-Bit, Serial 220 kSPS ADC in an 8-Lead Package
中文描述: 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
封裝: SOIC-8
文件頁(yè)數(shù): 4/16頁(yè)
文件大?。?/td> 184K
代理商: AD7898AR-3
AD7898
–4–
REV. 0
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 AD7898 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD pre-
cautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25
°
C unless otherwise noted)
V
DD
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to GND
AD7898-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
17 V
AD7898-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
10 V
Reference Input Voltage to GND . . . . –0.3 V to V
DD
+ 0.3 V
Digital Input Voltage to GND . . . . . . . –0.3 V to V
DD
+ 0.3 V
Digital Output Voltage to GND . . . . . –0.3 V to V
DD
+ 0.3 V
Operating Temperature Range
Commercial (A, B Versions) . . . . . . . . . . . –40
°
C to +85
°
C
Storage Temperature Range . . . . . . . . . . . –65
°
C to +150
°
C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150
°
C
SOIC Package, Power Dissipation . . . . . . . . . . . . . . . 450 mW
θ
JA
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 170
°
C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . 215
°
C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
°
C
ESD
AD7898-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 kV
AD7898-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 kV
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating; functional operation of the device
at these or any other conditions above those listed in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
ORDERING GUIDE
Model
Temperature Range
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Linearity Error (LSB)
1
±
1 LSB
±
1 LSB
SNR (dB)
Package Option
2
AD7898AR-10
AD7898AR-3
EVAL-AD7898CB
EVAL-CONTROL BRD2
3
71 dB
71 dB
SO-8
SO-8
NOTES
1
Linearity Error refers to integral linearity error.
2
SO = SOIC.
3
This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
PIN CONFIGURATION
TOP VIEW
(Not to Scale)
8
7
6
5
1
2
3
4
REF IN
V
IN
GND
SCLK
V
DD
CS
/
CONVST
V
DRIVE
SDATA
AD7898
200 A
I
OH
200 A
I
OL
TO
OUTPUT
PIN
C
L
50pF
1.6V
Figure 1. Load Circuit for Digital Output Timing
Specifications
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