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參數(shù)資料
| 型號： | AD8522ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT DUAL 5V 14-SOIC |
| 產(chǎn)品培訓模塊： | Data Converter Fundamentals DAC Architectures |
| 產(chǎn)品變化通告： | AD8522 Redesign Change 29/Nov/2010 |
| 標準包裝： | 1 |
| 設置時間： | 16µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 25mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 14-SO |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 2 電壓，單極 |
| 采樣率（每秒）： | 62.5k |
| 產(chǎn)品目錄頁面： | 785 (CN2011-ZH PDF) |
AD8522
–4–
REV. A
ABSOLUTE MAXIMUM RATINGS*
VDD to DGND & AGND . . . . . . . . . . . . . . . . . . . –0.3 V, +7 V
Logic Inputs and Output to DGND . . . . . –0.3 V, VDD + 0.3 V
VOUT to AGND . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD + 0.3 V
VREF to AGND . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD + 0.3 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD
IOUT Short Circuit to GND or VDD . . . . . . . . . . . . . . . . 50 mA
Package Power Dissipation . . . . . . . . . . . . . . . (TJ max–TA)/
θ
JA
Thermal Resistance,
θ
JA
14-Pin Plastic DIP Package (N-14) . . . . . . . . . . . . . 83
°C/W
14-Lead SOIC Package (SO-14) . . . . . . . . . . . . . . 120
°C/W
Maximum Junction Temperature (TJ max) . . . . . . . . . . 150
°C
Operating Temperature Range . . . . . . . . . . . . . –40
°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . +300
°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This 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.
ORDERING GUIDE
Temperature
Package
Model
Range
Description
Option
AD8522AN
–40
°C to +85°C
14-Pin P-DIP
N-14
AD8522AR
–40
°C to +85°C
14-Lead SOIC SO-14
The AD8522 contains 1482 transistors.
PIN CONFIGURATION
14-Pin Plastic DIP
14-Lead SO-14
VOUTA
AGND
VOUTB
VREF
CLK
SDI
SDO
RS
LDA
LDB
DGND
CS
VDD
MSB
1
2
14
13
10
9
8
12
11
5
6
7
3
4
AD8522
(Not To Scale)
1
Table II. Truth Tables
DAC Register Preset
RS
MSB
Register Activity
0
Asynchronously Resets DAC Registers to Zero
Scale
0
1
Asynchronously Presets DAC Registers to
Half Scale (800H)
1
X
None
Shift Register
CS
CLK
Shift Register
1
X
No Effect
0
↑
Shifts Register One Bit, SDO Outputs Data
from 16 Clocks Earlier
WARNING!
ESD SENSITIVE DEVICE
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 AD8522 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.
PIN DESCRIPTION
Pin
Function
SDI
Serial Data Input, input data loads directly into the shift register.
CLK
Clock input, positive edge clocks data into shift register.
CS
Chip Select, active low input. Prevents shift register loading when high. Does not affect LDA and LDB operation.
LDA
/B
Load DAC register strobes, active low. Transfers shift register data to DAC register. See truth table for operation.
Software decode feature only requires one LD strobe. Tie LDA and LDB together or use one of them with the
other pin tied high.
SDO
Serial Data Output. Output of shift register, always active.
RS
Resets DAC registers to condition determined by MSB pin. Active low input.
MSB
Digital input: High presets DAC registers to half scale (800H); Low clears all registers to zero (000H), when RS is
strobed to active low.
VDD
Positive +5 V power supply input. Tolerance
±10%.
AGND
Analog Ground Input.
DGND
Digital Ground Input.
VREF
Reference Voltage Output, 2.5 V nominal.
VOUT A/B
DAC A/B voltage outputs, 4.095 V full scale,
±5 mA output.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD8522ARZ | 制造商:Analog Devices 功能描述:IC, DAC, 12BIT, 62.5KSPS, SOIC-14 |
| AD8522ARZ-REEL | 功能描述:IC DAC DUAL 12BIT 5V 14SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:47 系列:- 設置時間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| AD8522JRU | 制造商:Rochester Electronics LLC 功能描述:+5V DUAL 12-BIT DAC - Bulk 制造商:Analog Devices 功能描述: |
| AD8522JRU-REEL | 制造商:Analog Devices 功能描述:DAC 2-CH R-2R 12-bit 14-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| AD8527 | 制造商:AD 制造商全稱:Analog Devices 功能描述:7 MHz Rail-to-Rail Low Voltage Operational Amplifiers |
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