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參數資料
| 型號： | AD7864AS-3 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 4-Channel, Simultaneous Sampling, High Speed, 12-Bit ADC |
| 中文描述： | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | PLASTIC, MO-112-AA, MQFP-44 |
| 文件頁數： | 5/19頁 |
| 文件大小： | 214K |
| 代理商： | AD7864AS-3 |
AD7864
–5–
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 AD7864 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.
ABSOLUTE MAXIMUM RATINGS*
(T
A
= +25
°
C unless otherwise noted)
V
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +7V
V
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +7V
Analog Input Voltage to AGND
AD7864-1 (
±
10 V Input Range) . . . . . . . . . . . . . . . .
±
20 V
AD7864-1 (
±
5 V Input Range) . . . . . . . . . . .–7 V to +20 V
AD7864-3 . . . . . . . . . . . . . . . . . . . . . . . . . . .–7 V to +20 V
AD7864-2 . . . . . . . . . . . . . . . . . . . . . . . . . . .–1 V to +20 V
Reference Input Voltage to AGND . . . –0.3 V to V
DD
+ 0.3V
Digital Input Voltage to DGND . . . . . –0.3 V to V
DD
+ 0.3 V
Digital Output Voltage to DGND . . . . –0.3 V to V
DD
+ 0.3 V
Operating Temperature Range
Commercial (A, B Version) . . . . . . . . . . . . –40
°
C to +85
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+150
°
C
MQFP Package, Power Dissipation . . . . . . . . . . . . . . 450 mW
θ
JA
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 95
°
C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . .+215
°
C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . .+220
°
C
*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
conditions for extended periods may affect device reliability.
ORDERING GUIDE
Input
Ranges
±
5 V,
±
10 V
±
5 V,
±
10 V
±
2.5 V
0 V to 2.5 V, 0 V to 5 V
Relative
Accuracy
±
1 LSB
±
0.5 LSB
±
1 LSB
±
1 LSB
Temperature
Range*
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Package
Description
Package
Option
Model
AD7864AS-1
AD7864BS-1
AD7864AS-3
AD7864AS-2
Plastic Lead Quad Flatpack
Plastic Lead Quad Flatpack
Plastic Lead Quad Flatpack
Plastic Lead Quad Flatpack
S-44
S-44
S-44
S-44
*The A Version is fully specified up to +105
°
C with degraded INL and DNL specifications of
±
2 LSBs max.
PIN CONFIGURATION
12 13 14 15 16 17 18 19 20 21 22
A
3
4
5
6
7
1
2
10
11
8
9
40 39 38
41
42
43
44
36 35 34
37
29
30
31
32
27
28
25
26
23
24
33
PIN 1
TOP VIEW
(Not to Scale)
DB7
DB8
DB9
DB10
DB11
CLKIN
INT/
EXT CLK
BUSY
FRSTDATA
CONVST
CS
RD
WR
SL1
SL2
SL3
SL4
H
/S SEL
AGND
AV
DD
V
REF
V
REF
GND
V
I
V
I
V
I
S
AD7864
E
D
D
D
D
D
D
V
D
V
I
D
D
V
I
D
A
V
I
D
V
I
V
I
WARNING!
ESD SENSITIVE DEVICE
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| AD7864AS | IC-SM-12-BIT ADC |
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| AD7864ASZ-1 | 功能描述:IC ADC 12BIT DUAL 4CH 44-MQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
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