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參數資料
| 型號： | AD8522 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | +5 Volt, Serial Input,Dual 12-Bit DAC(串行輸入,雙12位D/A轉換器) |
| 中文描述： | 5伏，串行輸入，雙12位DAC（串行輸入，雙12位的D / A轉換器） |
| 文件頁數： | 4/8頁 |
| 文件大小： | 189K |
| 代理商： | AD8522 |
AD8522
–4–
REV. A
ABSOLUT E MAX IMUM RAT INGS*
V
DD
to DGND & AGND . . . . . . . . . . . . . . . . . . . –0.3 V, +7 V
Logic Inputs and Output to DGND . . . . .–0.3 V, V
DD
+ 0.3 V
V
OUT
to AGND . . . . . . . . . . . . . . . . . . . . .–0.3 V, V
DD
+ 0.3 V
V
REF
to AGND . . . . . . . . . . . . . . . . . . . . .–0.3 V, V
DD
+ 0.3 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, V
DD
I
OUT
Short Circuit to GND or V
DD
. . . . . . . . . . . . . . . . 50 mA
Package Power Dissipation . . . . . . . . . . . . . . .(T
J
max–T
A
)/
θ
JA
T hermal Resistance,
θ
JA
14-Pin Plastic DIP Package (N-14) . . . . . . . . . . . . . 83
°
C/W
14-Lead SOIC Package (SO-14) . . . . . . . . . . . . . . 120
°
C/W
Maximum Junction T emperature (T
J
max) . . . . . . . . . . 150
°
C
Operating T emperature Range . . . . . . . . . . . . .–40
°
C to +85
°
C
Storage T emperature Range . . . . . . . . . . . . .–65
°
C to +150
°
C
Lead T emperature (Soldering, 10 sec) . . . . . . . . . . . . . +300
°
C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. T his is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ORDE RING GUIDE
T emperature
Range
Package
Description
Package
Option
Model
AD8522AN
AD8522AR
–40
°
C to +85
°
C
–40
°
C to +85
°
C
14-Pin P-DIP
14-Lead SOIC
N-14
SO-14
T he AD8522 contains 1482 transistors.
PIN CONFIGURAT ION
14-Pin Plastic DIP 14-Lead SO-14
V
OUTA
AGND
V
OUTB
V
REF
CLK
SDI
SDO
RS
LDA
LDB
DGND
CS
V
DD
MSB
1
2
14
13
10
9
8
12
11
5
6
7
3
4
(Not To Scale)
1
T able II. T ruth T ables
DAC Register Preset
Register Activity
RS
MSB
0
0
Asynchronously Resets DAC Registers to Zero
Scale
Asynchronously Presets DAC Registers to
Half Scale (800
H
)
None
0
1
1
X
Shift Register
CS
CLK
Shift Register
1
0
X
↑
No Effect
Shifts Register One Bit, SDO Outputs Data
from 16 Clocks Earlier
WARNING!
ESD SENSITIVE DEVICE
C AUT ION
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 AD8522 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. T herefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
PIN DE SCRIPT ION
Pin
Function
SDI
CLK
CS
LDA
/
B
Serial Data Input, input data loads directly into the shift register.
Clock input, positive edge clocks data into shift register.
Chip Select, active low input. Prevents shift register loading when high. Does not affect
LDA
and
LDB
operation.
Load DAC register strobes, active low. T ransfers shift register data to DAC register. See truth table for operation.
Software decode feature only requires one
LD
strobe. T ie
LDA
and
LDB
together or use one of them with the
other pin tied high.
Serial Data Output. Output of shift register, always active.
Resets DAC registers to condition determined by MSB pin. Active low input.
Digital input: High presets DAC registers to half scale (800
H
); Low clears all registers to zero (000
H
), when
RS
is
strobed to active low.
Positive +5 V power supply input. T olerance
±
10%.
Analog Ground Input.
Digital Ground Input.
Reference Voltage Output, 2.5 V nominal.
DAC A/B voltage outputs, 4.095 V full scale,
±
5 mA output.
SDO
RS
MSB
V
DD
AGND
DGND
V
REF
V
OUT A/B
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8522ACPZ-REEL | 功能描述:IC DAC DUAL 12BIT 5V 制造商:analog devices inc. 系列:- 零件狀態:上次購買時間 標準包裝:1 |
| AD8522ACPZ-REEL7 | 功能描述:IC DAC DUAL 12BIT 5V 制造商:analog devices inc. 系列:- 零件狀態:上次購買時間 標準包裝:1 |
| AD8522AN | 功能描述:IC DAC DUAL 12BIT 5V 14-DIP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數:16 數據接口:并聯 轉換器數目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應商設備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD8522AN | 制造商:Analog Devices 功能描述:SEMICONDUCTORSLINEAR |
| AD8522ANZ | 功能描述:IC DAC DUAL 12BIT 5V 14DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數:16 數據接口:并聯 轉換器數目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應商設備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
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