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參數資料
| 型號： | ADN8810 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 12-Bit High Output Current Source |
| 中文描述： | 12位高輸出電流源 |
| 文件頁數： | 14/16頁 |
| 文件大小： | 232K |
| 代理商： | ADN8810 |
ADN8810
Rev. 0 | Page 14 of 16
5V
TO OTHER 5V
DIGITAL LOGIC
LOGIC GROUND
RETURN
3V
GND
POWER SUPPLY
ADN8810
AVDD
AVSS
LOAD
GND
IOUT
LOAD
DVDD
PVDD
DVSS
DGND
0
Figure 23. Star Supply and Ground Technique
To improve thermal dissipation, the slug on the bottom of the
LFCSP package should be soldered to the PC board with
multiple vias into a low noise ground plane. Connecting these
vias to a copper area on the bottom side of the board will
further improve thermal dissipation.
Use identical trace lengths for the two output sense resistors.
These lengths are shown as X and Y in Figure 24. Differences in
trace lengths cause differences in parasitic series resistance.
Because the sense resistors can be as low as 1.37 , small
parasitic differences can lower both the output current accuracy
and the output impedance. Application Note AN-619 shows a
good layout for these traces.
FB
IOUT
R
SN
R
SN
R
SN
TO LOAD
X
Y
ADN8810
0
SUGGESTED PAD LAYOUT FOR CP-24 PACKAGE
shows the dimensions for the PC board pad layout for the
ADN8810. The package is a 4 mm × 4 mm, 24-lead LFCSP. The
metallic slug underneath the package should be soldered to a
copper pad connected to AVSS, the lowest supply voltage to the
ADN8810. For single-supply applications, this is ground. Use
multiple vias to this pad to improve the thermal dissipation of
the package.
0.027
(0.69)
0.011
(0.28)
0.020
(0.50)
PACKAGE
OUTLINE
DIMENSIONS ARE SHOWN
IN INCHES AND (MM).
CONTROLLING DIMENSIONS ARE IN MILLIMETERS
0.004
(0.10)
0.106
(2.68)
0.109
(2.78)
0.172
(4.36)
0
Figure 25. Suggested PC Board Layout for CP-24 Pad Landing
Figure 24. Use Identical Trace Lengths for Sense Resistors
相關PDF資料 |
PDF描述 |
|---|---|
| ADN8810-EVAL | 12-Bit High Output Current Source |
| ADN8810ACP | 12-Bit High Output Current Source |
| ADN8810ACP-REEL7 | 12-Bit High Output Current Source |
| ADN8820 | EDFA and CW Laser Controller |
| ADN8820-REEL7 | EDFA and CW Laser Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADN8810ACP | 制造商:Analog Devices 功能描述:Current Source 24-Pin LFCSP EP |
| ADN8810ACP-REEL7 | 制造商:Analog Devices 功能描述:Current Source 24-Pin LFCSP EP T/R |
| ADN8810ACPZ | 功能描述:IC CURRENT SOURCE 12BIT 24LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩流/電流管理 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| ADN8810ACPZ | 制造商:Analog Devices 功能描述:TUNABLE LASER CONTROLLER, 125GBPS, LFCSP |
| ADN8810ACPZ-REEL7 | 功能描述:IC CURRENT SOURCE(12BIT) 24LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩流/電流管理 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
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