參數(shù)資料
型號: AD8403ARUZ50-REEL
廠商: Analog Devices Inc
文件頁數(shù): 1/32頁
文件大小: 0K
描述: IC POT DIG QUAD 50K 8BIT 24TSSOP
標準包裝: 2,500
接片: 256
電阻(歐姆): 50k
電路數(shù): 4
溫度系數(shù): 標準值 500 ppm/°C
存儲器類型: 易失
接口: 4 線 SPI(芯片選擇)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 24-TSSOP
包裝: 帶卷 (TR)
1-/2-/4-Channel
Digital Potentiometers
AD8400/AD8402/AD8403
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2010 Analog Devices, Inc. All rights reserved.
FEATURES
256-position variable resistance device
Replaces 1, 2, or 4 potentiometers
1 k
, 10 k, 50 k, 100 k
Power shutdown—less than 5
μA
3-wire,SPI-compatible serial data input
10 MHz update data loading rate
2.7 V to 5.5 V single-supply operation
Qualified for automotive applications
APPLICATIONS
Mechanical potentiometer replacement
Programmable filters, delays, time constants
Volume control, panning
Line impedance matching
Power supply adjustment
GENERAL DESCRIPTION
The AD8400/AD8402/AD8403 provide a single-, dual-, or
quad-channel, 256-position, digitally controlled variable resistor
(VR) device.1 These devices perform the same electronic adjust-
ment function as a mechanical potentiometer or variable
resistor. The AD8400 contains a single variable resistor in the
compact SOIC-8 package. The AD8402 contains two independent
variable resistors in space-saving SOIC-14 surface-mount
packages. The AD8403 contains four independent variable
resistors in 24-lead PDIP, SOIC, and TSSOP packages. Each
part contains a fixed resistor with a wiper contact that taps the
fixed resistor value at a point determined by the digital code
loaded into the controlling serial input register. The resistance
between the wiper and either endpoint of the fixed resistor
varies linearly with respect to the digital code transferred into
the VR latch. Each variable resistor offers a completely
programmable value of resistance between the A terminal and
the wiper or the B terminal and the wiper. The fixed A-to-B
terminal resistance of 1 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ has a ±1%
channel-to-channel matching tolerance with a nominal
temperature coefficient of 500 ppm/°C. A unique switching
circuit minimizes the high glitch inherent in traditional
switched resistor designs, avoiding any make-before-break
or break-before-make operation.
(continued on Page 3)
1 The terms digital potentiometer, VR, and RDAC are used interchangeably.
FUNCTIONAL BLOCK DIAGRAM
8
8-BIT
LATCH
CK RS
8
8-BIT
LATCH
CK RS
8
8-BIT
LATCH
CK RS
8
8-BIT
LATCH
CK RS
DAC
SELECT
A1, A0
1
10-BIT
SERIAL
LATCH
CK
RS
Q
D
SDO
SHDN
RS
AD8403
VDD
DGND
SDI
CLK
CS
8
2
3
2
4
RDAC1
W1
A1
B1
AGND1
RDAC2
W2
A2
B2
AGND2
RDAC3
W3
A3
B3
AGND3
RDAC4
W4
A4
B4
AGND4
SHDN
0
10
92
-00
1
Figure 1.
CODE (Decimal)
100
75
50
25
0
64
128
192
255
R
WA
(D
),
R
WB
(D
)(
%
o
fN
o
m
in
a
lR
AB
)
RWA
RWB
01
09
2-
0
02
Figure 2. RWA and RWB vs. Code
相關PDF資料
PDF描述
MS3452W20-29S CONN RCPT 17POS BOX MNT W/SCKT
AD8403ARUZ100-REEL IC POT DGTL QUAD 100K 24-TSSOP
D38999/24WG41PB CONN RCPT 41POS JAM NUT W/PINS
MS27473T22B2PB CONN PLUG 85POS STRAIGHT W/PINS
DS1100U-20+ IC DELAY LINE 5TAP 20NS 8-USOP
相關代理商/技術參數(shù)
參數(shù)描述
AD8403ARZ1 功能描述:IC POT DIG 8BIT QUAD 1K 24-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 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 供應商設備封裝:8-TDFN-EP(3x3) 包裝:剪切帶 (CT) 產品目錄頁面:1399 (CN2011-ZH PDF) 其它名稱:MAX5423ETA+TCT
AD8403ARZ10 功能描述:IC POT DIG QUAD 10K 8BIT 24SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 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 供應商設備封裝:8-TDFN-EP(3x3) 包裝:剪切帶 (CT) 產品目錄頁面:1399 (CN2011-ZH PDF) 其它名稱:MAX5423ETA+TCT
AD8403ARZ10 制造商:Analog Devices 功能描述:IC QUAD 8-BIT POT
AD8403ARZ100 功能描述:IC POT DGTL 8BIT 100K 4CH 24SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標準包裝:3,300 系列:WiperLock™ 接片:257 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標準值 150 ppm/°C 存儲器類型:易失 接口:3 線 SPI(芯片選擇) 電源電壓:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-VDFN 裸露焊盤 供應商設備封裝:8-DFN-EP(3x3) 包裝:帶卷 (TR)
AD8403ARZ100-REEL 功能描述:IC DCP QUAD 100K 24-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標準包裝:3,000 系列:DPP 接片:32 電阻(歐姆):10k 電路數(shù):1 溫度系數(shù):標準值 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 供應商設備封裝:8-TDFN(2x3) 包裝:帶卷 (TR)