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MAX5417

更新时间： 2024-09-15 22:55:19
品牌 Logo 应用领域
美信 - MAXIM 电位器
页数 文件大小 规格书
15页 795K
描述
256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers

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MAX5417 数据手册

 浏览型号MAX5417的Datasheet PDF文件第2页浏览型号MAX5417的Datasheet PDF文件第3页浏览型号MAX5417的Datasheet PDF文件第4页浏览型号MAX5417的Datasheet PDF文件第5页浏览型号MAX5417的Datasheet PDF文件第6页浏览型号MAX5417的Datasheet PDF文件第7页 
19-3185; Rev 2; 8/04  
2
256-Tap, Nonvolatile, I C-Interface,  
Digital Potentiometers  
General Description  
Features  
The MAX5417/MAX5418/MAX5419 nonvolatile, linear-  
taper, digital potentiometers perform the function of a  
mechanical potentiometer, but replace the mechanics  
with a simple 2-wire digital interface, allowing communi-  
cation with multiple devices. Each device performs the  
same function as a discrete potentiometer or variable  
resistor and has 256 tap points.  
♦ Power-On Recall of Wiper Position from  
Nonvolatile Memory  
♦ Tiny 3mm x 3mm 8-Pin TDFN Package  
♦ 35ppm/°C End-to-End Resistance Temperature  
Coefficient  
♦ 5ppm/°C Ratiometric Temperature Coefficient  
♦ 50kΩ/100kΩ/200kΩ Resistor Values  
♦ Fast I2C-Compatible Serial Interface  
♦ 500nA (typ) Static Supply Current  
♦ Single-Supply Operation: +2.7V to +5.25V  
♦ 256 Tap Positions  
The devices feature an internal, nonvolatile EEPROM  
used to store the wiper position for initialization during  
power-up. The fast-mode I2C™-compatible serial inter-  
face allows communication at data rates up to 400kbps,  
minimizing board space and reducing interconnection  
complexity in many applications. Each device is available  
with one of four factory-preset addresses (see the  
Selector Guide) and features an address input for a total  
of eight unique address combinations.  
The MAX5417/MAX5418/MAX5419 provide three nomi-  
nal resistance values: 50kΩ (MAX5417), 100kΩ  
(MAX5418), or 200kΩ (MAX5419). The nominal resistor  
temperature coefficient is 35ppm/°C end-to-end, and  
only 5ppm/°C ratiometric. This makes the devices ideal  
for applications requiring a low-temperature-coefficient  
variable resistor, such as low-drift, programmable gain-  
amplifier circuit configurations.  
♦
0.5 ꢀSꢁ DNꢀ in Voltage-Divider Mode  
0.5 ꢀSꢁ INꢀ in Voltage-Divider Mode  
♦
Functional Diagram  
H
256-  
POSITION  
DECODER  
8-BIT  
SHIFT  
REGISTER  
8
8
256  
8-BIT  
LATCH  
V
W
DD  
GND  
L
The MAX5417/MAX5418/MAX5419 are available in a  
3mm x 3mm 8-pin TDFN package, and are specified  
over the extended -40°C to +85°C temperature range.  
2
SDA  
SCL  
POR  
I C  
MAX5417  
MAX5418  
MAX5419  
INTERFACE  
8-BIT  
NV  
MEMORY  
A
0
Applications  
Mechanical Potentiometer Replacement  
Low-Drift Programmable-Gain Amplifiers  
Volume Control  
I2C is a trademark of Phillips Corp.  
2
Purchase of I C components from Maxim Integrated Products,  
Inc. or one of its sublicensed Associated Companies, conveys  
2
a license under the Philips I C Patent Rights to use these com-  
2
Liquid-Crystal Display (LCD) Contrast Control  
ponents in an I C system, provided that the system conforms  
2
to the I C Standard Specification as defined by Philips.  
Ordering Information/Selector Guide  
PART  
MAX5417LETA  
MAX5417META*  
MAX5417NETA*  
MAX5417PETA*  
MAX5418LETA  
MAX5418META*  
MAX5418NETA*  
MAX5418PETA*  
MAX5419LETA  
MAX5419META*  
MAX5419NETA*  
MAX5419PETA*  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
I2C ADDRESS  
R (kΩ)  
50  
PIN-PACKAGE  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
8 TDFN-EP**  
TOP MARK  
AIB  
010100A  
010101A  
010110A  
010111A  
010100A  
010101A  
010110A  
010111A  
010100A  
010101A  
010110A  
010111A  
0
0
0
0
0
0
0
0
0
0
0
0
50  
ALS  
50  
ALT  
50  
ALU  
AIC  
100  
100  
100  
100  
200  
200  
200  
200  
ALV  
ALW  
ALX  
AID  
ALY  
ALZ  
AMA  
*Future product—contact factory for availability.  
**Exposed pad.  
Pin Configuration appears at end of data sheet.  
________________________________________________________________ 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...15

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