參數(shù)資料
型號(hào)： AD7856AR
廠商： ANALOG DEVICES INC
元件分類(lèi)： ADC
英文描述： 5 V Single Supply, 8-Channel 14-Bit 285 kSPS Sampling ADC
中文描述： 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
封裝： SOIC-24
文件頁(yè)數(shù)： 6/32頁(yè)
文件大小： 294K
代理商： AD7856AR
AD7856
–6–
REV. A
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 AD7856 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
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= +25
°
C unless otherwise noted)
AV
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +7 V
DV
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +7 V
AV
DD
to DV
DD
. . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +0.3 V
Analog Input Voltage to AGND . . . .–0.3 V to AV
DD
+ 0.3 V
Digital Input Voltage to DGND . . . . –0.3 V to DV
DD
+ 0.3 V
Digital Output Voltage to DGND . . . –0.3 V to DV
DD
+ 0.3 V
REF
IN
/REF
OUT
to AGND . . . . . . . . .–0.3 V to AV
DD
+ 0.3 V
Input Current to Any Pin Except Supplies
2
. . . . . . .
±
10 mA
Operating Temperature Range Commercial
A Version . . . . . . . . . . . . . . . . . . . . . . . . . –40
°
C to +105
°
C
K Version . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
°
C to +105
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+150
°
C
Plastic DIP Package, Power Dissipation . . . . . . . . . . 450 mW
θ
JA
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 105
°
C/W
θ
JC
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 34.7
°
C/W
Lead Temperature, (Soldering, 10 secs) . . . . . . . . .+260
°
C
SOIC, SSOP Package, Power Dissipation . . . . . . . . . 450 mW
θ
JA
Thermal Impedance .75
°
C/W (SOIC) 115
°
C/W (SSOP)
θ
JC
Thermal Impedance . .25
°
C/W (SOIC) 35
°
C/W (SSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . .+215
°
C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . .+220
°
C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1 kV
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 listed in the operational sections
of this specification is not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect device reliability.
2
Transient currents of up to 100 mA will not cause SCR latch-up.
PIN CONFIGURATIONS
(DIP, SOIC AND SSOP)
13
16
15
14
24
23
22
21
20
19
18
17
TOP VIEW
(Not to Scale)
12
11
10
9
8
1
2
3
4
7
6
5
AD7856
CONVST
DIN
CLKIN
SCLK
SYNC
BUSY
SLEEP
REF
IN
/REF
OUT
DV
DD
DGND
DOUT
AV
DD
AGND
C
REF1
C
REF2
AIN1
AIN2
AIN7
AIN8
CAL
AIN3
AIN4
AIN6
AIN5
ORDERING GUIDE
Linearity
Error
(LSB)
1
±
2 typ
±
2 typ
±
2
±
2 typ
Package
Options
2
Model
AD7856AN
AD7856AR
AD7856KR
AD7856ARS
EVAL-AD7856CB
3
EVAL-CONTROL BOARD
4
N-24
R-24
R-24
RS-24
NOTES
1
Linearity error here refers to integral linearity error.
2
N = Plastic DIP; R = SOIC; RS = SSOP.
3
This can be used as a stand-alone evaluation board or in conjunction with the
EVAL-CONTROL BOARD for evaluation/demonstration purposes.
4
This board is a complete unit allowing a PC to control and communicate with
all Analog Devices evaluation boards ending in the CB designators.
相關(guān)PDF資料
PDF描述
AD7856ARS 5 V Single Supply, 8-Channel 14-Bit 285 kSPS Sampling ADC
AD7856KR 5 V Single Supply, 8-Channel 14-Bit 285 kSPS Sampling ADC
AD7856 8-Channel 14 Bit 285 kSPS Sampling ADC(單電源,8通道14位采樣A/D轉(zhuǎn)換器)
AD7858L 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC(單電源,200kSPS 8通道12位采樣A/D轉(zhuǎn)換器)
AD7858 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC(單電源,200kSPS 8通道12位采樣A/D轉(zhuǎn)換器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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