参数资料
型号: MAX5419NETA+T
厂商: Maxim Integrated Products
文件页数: 1/14页
文件大小: 0K
描述: IC POT DGTL 256-TAP I2C 8-TDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
接片: 256
电阻(欧姆): 200k
电路数: 1
温度系数: 标准值 35 ppm/°C
存储器类型: 非易失
接口: I²C(设备位址)
电源电压: 2.7 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WDFN 裸露焊盘
供应商设备封装: 8-TDFN-EP(3x3)
包装: 带卷 (TR)
General Description
The MAX5417/MAX5418/MAX5419 nonvolatile, linear-
taper, digital potentiometers perform the function of a
mechanical potentiometer by replacing 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.
The devices feature an internal, nonvolatile EEPROM
used to store the wiper position for initialization during
power-up. The fast-mode I2C-compatible serial interface
allows communication at data rates up to 400kbps, mini-
mizing board space and reducing interconnection com-
plexity in many applications. Each device is available with
one of four factory-preset addresses (see the
Ordering
Information/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: 50k
(MAX5417), 100k
(MAX5418), or 200k
(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.
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.
Applications
Mechanical Potentiometer Replacement
Low-Drift Programmable-Gain Amplifiers
Volume Control
Liquid-Crystal Display (LCD) Contrast Control
Features
o Power-On Recall of Wiper Position from
Nonvolatile Memory
o Tiny 3mm x 3mm 8-Pin TDFN Package
o 35ppm/°C End-to-End Resistance Temperature
Coefficient
o 5ppm/°C Ratiometric Temperature Coefficient
o 50k/100k/200k Resistor Values
o Fast I2C-Compatible Serial Interface
o 500nA (typ) Static Supply Current
o Single-Supply Operation: +2.7V to +5.25V
o 256 Tap Positions
o ±0.5 LSB DNL in Voltage-Divider Mode
o ±0.5 LSB INL in Voltage-Divider Mode
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
________________________________________________________________
Maxim Integrated Products
1
VDD
GND
SDA
SCL
8-BIT
SHIFT
REGISTER
8-BIT
LATCH
8-BIT
NV
MEMORY
I2C
INTERFACE
A0
8
256
W
L
256-
POSITION
DECODER
H
POR
MAX5417
MAX5418
MAX5419
Ordering Information/Selector Guide
Functional Diagram
19-3185; Rev 4; 4/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Pin Configuration appears at end of data sheet.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
**
Exposed pad.
PART
TEMP RANGE
I
2C ADDRESS
R (k
)
PIN-PACKAGE
TOP MARK
MAX5417LETA+
-40°C to +85°C
010100A0
50
8 TDFN-EP**
AIB
MAX5417META+
-40°C to +85°C
010101A0
50
8 TDFN-EP**
ALS
MAX5417NETA+
-40°C to +85°C
010110A0
50
8 TDFN-EP**
ALT
MAX5417PETA+
-40°C to +85°C
010111A0
50
8 TDFN-EP**
ALU
MAX5418LETA+
-40°C to +85°C
010100A0
100
8 TDFN-EP**
AIC
MAX5418META+
-40°C to +85°C
010101A0
100
8 TDFN-EP**
ALV
MAX5418NETA+
-40°C to +85°C
010110A0
100
8 TDFN-EP**
ALW
MAX5418PETA+
-40°C to +85°C
010111A0
100
8 TDFN-EP**
ALX
MAX5419LETA+
-40°C to +85°C
010100A0
200
8 TDFN-EP**
AID
MAX5419META+
-40°C to +85°C
010101A0
200
8 TDFN-EP**
ALY
MAX5419NETA+
-40°C to +85°C
010110A0
200
8 TDFN-EP**
ALZ
MAX5419PETA+
-40°C to +85°C
010111A0
200
8 TDFN-EP**
AMA
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