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MAX5405

更新时间： 2024-09-16 14:57:31
品牌 Logo 应用领域
亚德诺 - ADI 电位器
页数 文件大小 规格书
10页 436K
描述
双路、256抽头、低漂移、数字电位器，10引脚μMAX封装

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MAX5405 数据手册

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19-1934; Rev 2; 11/05  
Dual 256-Tap, Low-Drift,  
Digital Potentiometers in 10-µMAX  
General Description  
Features  
The MAX5403/MAX5404/MAX5405 is a family of dual  
linear taper digital potentiometers. Each device has one  
3-terminal potentiometer and one 2-terminal variable  
resistor (Figure 1). The MAX5403/MAX5404/MAX5405  
operate from +2.7V to +5.5V single-supply voltages  
and use an ultra-low supply current of 0.1µA. These  
devices also provide glitchless switching between  
resistors taps as well as a convenient power-on reset  
(POR) that sets the wiper to the midscale position at  
power-up. The potentiometer consists of a fixed resistor  
with a wiper contact that is digitally controlled through a  
3-wire serial interface and has 256-tap points. It per-  
forms the same function as a discrete potentiometer or  
variable resistor.  
♦ 10-Pin µMAX Small Footprint Package  
♦ 256-Tap Positions  
♦ Ultra Low 0.1µA Supply Current  
♦ +2.7V to +5.5V Single-Supply Operation  
♦ Low End-To-End Temperature Coefficient:  
35ppm/°C  
♦ Low Ratiometric Temperature Coefficient:  
5ppm/°C  
♦ Power-On Reset: Wiper Goes to Midscale  
(Position 128)  
♦ Glitchless Switching Between Resistor Taps  
♦ 3-Wire SPI™ -Interface Compatible  
♦ 10kΩ/50kΩ/100kΩ Resistor Values  
These parts are ideal for applications requiring digitally  
controlled resistors. Three resistance values are avail-  
able: 10kΩ (MAX5403), 50kΩ (MAX5404), and 100kΩ  
(MAX5405). A nominal resistor-temperature coefficient  
of 35ppm/°C end-to-end and 5ppm/°C ratiometric make  
the MAX5403/MAX5404/MAX5405 ideal for applications  
requiring low temperature-coefficient variable resistors,  
such as adjustable-gain circuit configurations.  
Ordering Information  
The MAX5403/MAX5404/MAX5405 are available in a 10-  
®
R
(kΩ)  
PKG  
CODE  
pin µMAX package. Each device is guaranteed over the  
PART  
PIN-PACKAGE  
extended industrial temperature range (-40°C to +85°C).  
MAX5403EUB  
MAX5404EUB  
MAX5405EUB  
10 µMAX  
10 µMAX  
10 µMAX  
10  
50  
U10C-4  
U10C-4  
U10C-4  
Applications  
Mechanical Potentiometer Replacement  
Low-Drift Programmable Gain Amplifier (PGA)  
Volume Control  
100  
Note: All devices operate over the -40°C to +85°C temperature  
range.  
LCD Screen Adjustment  
Adjustable Voltage Reference  
Programmable Filters, Delays, Time Constant  
Impedance Matching  
Pin Configuration  
TOP VIEW  
GND  
1
2
3
4
5
10  
9
L
A
L
H
W
A
B
B
B
MAX5403  
MAX5404  
MAX5405  
8
V
DD  
W
7
SCLK  
DIN  
CS  
6
µMAX  
SPI is a registered trademark of Motorola, Inc.  
µMAX is a registered trademark of Maxim Integrated  
Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...10

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