參數(shù)資料
型號(hào)： DS3903
元件分類(lèi)： 數(shù)字電位計(jì)
英文描述： Triple 128-Position Nonvolatile Digital Potentiometer
中文描述： 三路、128抽頭、非易失數(shù)字電位器
文件頁(yè)數(shù)： 1/11頁(yè)
文件大小： 619K
代理商： DS3903
General Description
The DS3903 contains three nonvolatile (NV) low tem-
perature coefficient digital potentiometers, which can
be accessed through a 2-wire bus. It operates in both
3V and 5V systems, and it features a write-protect pin
that can lock the positions of the potentiometers. An
address pin allows two DS3903s to be placed on the
same 2-wire bus.
Applications
Power-Supply Calibration
Mobile Phones and PDAs
Fiber Optics Transceiver Modules
Portable Electronics
A Small, Low-Cost Replacement for Mechanical
Potentiometers
Features
Three 128-Position Linear Potentiometers
(Two 10k
, One 90k
)
NV Wiper Storage
0 to 5.5V on Any Potentiometer Terminal
Independent of V
CC
Low End-to-End Temperature Coefficient
Operates on an Industry-Standard 2-Wire Bus
Write-Protect Pin
Supply Voltage: 3V or 5V
Operating Temperature Range: -40°C to +85°C
Packaging: 20-Pin TSSOP
D
Triple 128-Position Nonvolatile
Digital Potentiometer
_____________________________________________
Maxim Integrated Products
1
20
18
17
16
15
14
13
11
1
3
4
5
6
7
8
10
12
9
SDA
V
CC
19
2
SCL
N.C.
N.C.
N.C.
N.C.
H0
W0
H1
H2
W2
TSSOP
A0
WP
W1
N.C.
L0
L1
L2
GND
DS3903
Pin Configuration
0.1
μ
F
4.7k
2-WIRE
MASTER
V
CC
V
CC
V
CC
VREF1
VREF2
5.1k
Iref
V
CC
SCL
SDA
POTENTIOMETER 2
10k
ADDDR FAh
POTENTIOMETER 0
10k
ADDDR F9h
POTENTIOMETER 1
90k
ADDDR F8h
WP
A0
GND
4.7k
VARIABLE RESISTANCE
FOR ADJUSTABLE
CURRENT SOURCE
HIGH-OUTPUT-IMPEDANCE
VOLTAGE REFERENCE
BUFFERED
VOLTAGE
REFERENCE
V
CC
MAX427
DS3903
Typical Operating Circuit
Ordering Information
Rev 0; 6/02
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
20 TSSOP
DS3903E-020
DS3903E-020/T&R
-40°C to +85°C
20 TSSOP
(Tape-and-Reel)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS3903E 功能描述:IC POT NV TRIPLE 128POS 20-TSSOP RoHS:否 類(lèi)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:2,500 系列:- 接片:32 電阻（歐姆）:50k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 50 ppm/°C 存儲(chǔ)器類(lèi)型:易失 接口:3 線(xiàn)串行（芯片選擇，遞增，增/減） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 供應(yīng)商設(shè)備封裝:TSOT-23-6 包裝:帶卷 (TR)
DS3903E+ 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 128POS 10.5KOHM/90KOHM TRIPLE 20TSSOP - Rail/Tube
DS3903E-020 功能描述:數(shù)字電位計(jì) IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
DS3903E-020/R 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Triple 128-Position Nonvolatile Digital Potentiometer
DS3903E-020/T 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Triple 128-Position Nonvolatile Digital Potentiometer
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