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MAX5403-MAX5405

更新时间： 2024-11-04 22:55:19
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
10页 562K
描述
Dual 256-Tap, Low-Drift, Digital Potentiometers in 10-レMAX

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MAX5403-MAX5405 数据手册

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19-1934; Rev 1; 4/01  
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.  
o 10-Pin µMAX Small Footprint Package  
o 256-Tap Positions  
o Ultra Low 0.1µA Supply Current  
o +2.7V to +5.5V Single-Supply Operation  
o Low End-To-End Temperature Coefficient:  
35ppm/°C  
o Low Ratiometric Temperature Coefficient:  
5ppm/°C  
o Power-On Reset: Wiper Goes to Midscale  
(Position 128)  
o Glitchless Switching Between Resistor Taps  
o 3-Wire SPI™ -Interface Compatible  
o 10k /50k /100k Resistor Values  
These parts are ideal for applications requiring digitally  
controlled resistors. Three resistance values are avail-  
able: 10k (MAX5403), 50k (MAX5404), and 100k  
(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.  
The MAX5403/MAX5404/MAX5405 are available in a 10-  
pin µMAX package. Each device is guaranteed over the  
extended industrial temperature range (-40°C to +85°C).  
Applications  
Ordering Information  
Mechanical Potentiometer Replacement  
Low-Drift Programmable Gain Amplifier (PGA)  
Volume Control  
PART  
TEMP RANGE  
PIN-PACKAGE R (k )  
MAX5403EUB -40 C to +85 C 10 µMAX  
MAX5404EUB -40 C to +85 C 10 µMAX  
MAX5405EUB -40 C to +85 C 10 µMAX  
10  
50  
100  
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
B
B
B
A
MAX5403  
MAX5404  
MAX5405  
8
V
DD  
W
7
SCLK  
DIN  
SPI is a registered trademark of Motorola, Inc.  
CS  
6
MAX  
________________________________________________________________ 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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