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參數(shù)資料
| 型號： | AD5290EVAL |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Compact +30V/【15V 256-Position Digital Potentiometer |
| 中文描述： | 緊湊型30V的/【15V的256位數(shù)字電位器 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大?。?/td> | 150K |
| 代理商： | AD5290EVAL |
Preliminary Technical Data
AD5290
V
A/B/W
. The relative order of
powering V
A
, V
B
, V
W
, and the
digital inputs is not important as long as they are powered after
V
DD
and V
SS
with respect to GND.
Rev. Pr C | Page 10 of 11
LAYOUT AND POWER SUPPLY BYPASSING
It is a good practice to employ compact, minimum lead length
layout design. The leads to the inputs should be as direct as
possible with a minimum conductor length. Ground paths
should have low resistance and low inductance.
Similarly, it is also a good practice to bypass the power supplies
with quality capacitors for optimum stability. Supply leads to
the device should be bypassed with disc or chip ceramic
capacitors of 0.01 μF to 0.1 μF. Low ESR 1 μF to 10 μF tantalum
or electrolytic capacitors should also be applied at the supplies
to minimize any transient disturbance and low frequency ripple
(see Figure 4). Note that the digital ground should also be
joined remotely to the analog ground at one point to minimize
the ground bounce.
Figure 4. Power Supply Bypassing
DAISY CHAIN OPERATION
The serial data output pin (SDO) can be used to daisy chain
multiple devices for simultaneous operations, see Figure 12. The
SDO pin contains an open drain N-Ch FET and requires a pull-
up resistor. Users need to tie the SDO pin of one package to the
SDI pin of the next package. If many devices are daisy-chained,
users may need to increase the clock period to accommodate
the time delay introduced by the pull-up resistors and the
capacitive loading at the SDO-SDI interface, see Figure 12.
If two AD5290 are daisy chained, this requires total 16 bits of
data. The first 8 bits goes to U2 and the second 8 bits goes to
U1. The CS should be kept low until all 16 bits are clocked into
their respective serial registers. The CS is then pulled high to
complete the operation.
Figure 12. Daisy Chain Configuration
AD5290
U1
SDI
S
D
O
CS
CLK
AD5290
U2
S
D
I
SDO
CS
CLK
2
.
2
K
R
p
V
D
D
SCLK
MOSI
SS
m
uC
AD5290
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PDF描述 |
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| AD5290YRMZ10 | Compact +30V/【15V 256-Position Digital Potentiometer |
| AD5290YRMZ100 | Compact +30V/【15V 256-Position Digital Potentiometer |
| AD5290YRMZ100-RL7 | Compact +30V/【15V 256-Position Digital Potentiometer |
| AD5290YRMZ10-RL7 | Compact +30V/【15V 256-Position Digital Potentiometer |
| AD5290YRMZ50 | Compact +30V/【15V 256-Position Digital Potentiometer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ad5290xrmz10 | 制造商:Analog Devices 功能描述:COMPACT +30V/?15V 256-POSITION DIGITAL POTENTIOMETER - Bulk |
| AD5290YRM10-R7 | 制造商:Analog Devices 功能描述:+/-15V 8-BIT DIGIPOT - Tape and Reel |
| AD5290YRMZ10 | 功能描述:IC DGTL POT 10K 256POS 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:非易失 接口:3 線串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN-EP（3x3） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1399 (CN2011-ZH PDF) 其它名稱:MAX5423ETA+TCT |
| AD5290YRMZ100 | 功能描述:IC DGTL POT 100K 256POS 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲器類型:非易失 接口:3 線串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN-EP（3x3） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1399 (CN2011-ZH PDF) 其它名稱:MAX5423ETA+TCT |
| AD5290YRMZ100-R7 | 功能描述:IC POT DGTL 100KW 256POS 10-MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
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