參數(shù)資料
型號(hào): AD5451YUJZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 17/28頁
文件大小: 0K
描述: IC DAC 10BIT MULT TSOT23-8
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
設(shè)計(jì)資源: Unipolar, Precision DC Digital-to-Analog Conversion using AD5450/1/2/3 8-14-Bit DACs (CN0052)
Precision, Bipolar, Configuration for AD5450/1/2/3 8-14bit Multiplying DACs (CN0053)
AC Signal Processing Using AD5450/1/2/3 Current Output DACs (CN0054)
Programmable Gain Element Using AD5450/1/2/3 Current Output DAC Family (CN0055)
標(biāo)準(zhǔn)包裝: 10,000
位數(shù): 10
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-8 薄型,TSOT-23-8
供應(yīng)商設(shè)備封裝: TSOT-23-8
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 1 電流,單極;1 電流,雙極
采樣率(每秒): 2.7M
AD5450/AD5451/AD5452/AD5453
Data Sheet
Rev. G | Page 24 of 28
MICROWIRE-to-AD5450/AD5451/AD5452/AD5453
Interface
Figure 62 shows an interface between the DAC and any
MICROWIRE-compatible device. Serial data is shifted out
upon the falling edge of the serial clock, SK, and is clocked into
the DAC input shift register upon the rising edge of SK, which
corresponds to the falling edge of the DAC’s SCLK.
SCLK
SK
MICROWIRE*
SYNC
CS
SDIN
SO
AD5450/AD5451/
AD5452/AD5453*
*ADDITIONAL PINS OMITTED FOR CLARITY
04587-106
Figure 62. MICROWIRE-to-AD5450/AD5451/AD5452/AD5453 Interface
PIC16C6x/PIC16C7x-to-
AD5450/AD5451/AD5452/AD5453 Interface
The PIC16C6x/PIC16C7x synchronous serial port (SSP) is
configured as an SPI master with the clock polarity bit (CKP) = 0.
This is done by writing to the synchronous serial port control
register (SSPCON); see the PIC16/PIC17 Microcontroller
User Manual.
In this example, I/O Port RA1 is used to provide a SYNC signal
and enable the serial port of the DAC. This microcontroller
transfers only eight bits of data during each serial transfer
operation; therefore, two consecutive write operations are
required. Figure 63 shows the connection diagram.
SCLK
SCK/RC3
PIC16C6x/PIC16C7x*
SYNC
RA1
SDIN
SDI/RC4
AD5450/AD5451/
AD5452/AD5453*
*ADDITIONAL PINS OMITTED FOR CLARITY
04587-
107
Figure 63. PIC16C6x/7x-to-AD5450/AD5451/AD5452/AD5453 Interface
PCB LAYOUT AND POWER SUPPLY DECOUPLING
In any circuit where accuracy is important, careful consideration
of the power supply and ground return layout helps to ensure
the rated performance. The printed circuit board on which a
AD5450/AD5451/AD5452/AD5453 DAC is mounted should be
designed so that the analog and digital sections are separated
and confined to certain areas of the board. If the DAC is in a
system where multiple devices require an AGND-to-DGND
connection, the connection should be made at one point only.
The star ground point should be established as close as possible
to the device.
These DACs should have ample supply bypassing of 10 F in
parallel with 0.1 F on the supply located as close to the package
as possible, ideally right up against the device. The 0.1 F
capacitor should have low effective series resistance (ESR) and
low effective series inductance (ESI), like the common ceramic
types that provide a low impedance path to ground at high
frequencies, to handle transient currents due to internal logic
switching. Low ESR 1 F to 10 F tantalum or electrolytic
capacitors should also be applied at the supplies to minimize
transient disturbance and filter out low frequency ripple.
Components, such as clocks, that produce fast switching signals
should be shielded with a digital ground to avoid radiating noise
to other parts of the board, and they should never be run near
the reference inputs.
Avoid crossover of digital and analog signals. Traces on opposite
sides of the board should run at right angles to each other. This
reduces the effects of feedthrough through the board. A microstrip
technique is the best solution, but its use is not always possible
with a double-sided board. In this technique, the component
side of the board is dedicated to the ground plane and signal
traces are placed on the solder side.
It is good practice to employ compact, minimum lead length
PCB layout design. Leads to the input should be as short as
possible to minimize IR drops and stray inductance.
The PCB metal traces between VREF and RFB should also be
matched to minimize gain error. To optimize high frequency
performance, the I-to-V amplifier should be located as close to
the device as possible.
相關(guān)PDF資料
PDF描述
LTC2616CDD-1#PBF IC DAC 14BIT I2C V-OUT 10-DFN
VI-B0L-MX CONVERTER MOD DC/DC 28V 75W
VI-B4X-IU-B1 CONVERTER MOD DC/DC 5.2V 200W
VE-JND-MZ-F2 CONVERTER MOD DC/DC 85V 25W
VI-26X-MW-F1 CONVERTER MOD DC/DC 5.2V 100W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5451YUJZ-REEL7 功能描述:IC DAC 10BIT MULT 50MHZ TSOT23-8 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 設(shè)置時(shí)間:4µs 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):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP,8-MSOP(0.118",3.00mm 寬) 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓,單極 采樣率(每秒):* 產(chǎn)品目錄頁面:1398 (CN2011-ZH PDF)
AD5452 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual 8-,10-,12-Bit High Bandwidth Multiplying DACs with Serial Interface
AD5452W 制造商:AD 制造商全稱:Analog Devices 功能描述:12-Bit High Bandwidth Multiplying DAC with Serial Interface
AD5452YRM 功能描述:IC DAC 12BIT MULTIPLYING 8-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?,串行,SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散(最大):2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP(4x3) 包裝:管件 輸出數(shù)目和類型:8 電壓,單極 采樣率(每秒):*
AD5452YRM-REEL 功能描述:IC DAC 12BIT MULTIPLYING 8-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?,串行,SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散(最大):2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP(4x3) 包裝:管件 輸出數(shù)目和類型:8 電壓,單極 采樣率(每秒):*