參數(shù)資料
型號： MAX5451
廠商： Maxim Integrated Products, Inc.
元件分類： 通用總線功能
英文描述： Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
中文描述： 雙路、256抽頭、非易失、I2C接口、數(shù)字電位器
文件頁數(shù)： 1/12頁
文件大?。?/td> 607K
代理商： MAX5451
General Description
The MAX5450–MAX5455 are a family of dual digital
potentiometers that perform the same function as a
mechanical potentiometer or variable resistor. The
MAX5451/MAX5453/MAX5455 have two 3-terminal
potentiometers and the MAX5450/MAX5452/MAX5454
have two 2-terminal variable resistors. The MAX5450–
MAX5455 operate from a +2.7V to +5.5V single-supply
voltage and use an ultra-low supply current of 0.1μA.
These devices consist of two fixed resistors each
with 256 digitally-controlled wiper contacts. The conve-
nient power-on reset (POR) sets the wiper to midscale
position at power-up and the easy-to-use up/down
interface allows glitchless switching between
resistor taps. Six inputs control the 14-pin MAX5451/
MAX5453/MAX5455 potentiometers. Four inputs control
the 10-pin MAX5450/MAX5452/MAX5454 variable resis-
tors.
The MAX5450–MAX5455 are ideal for applications
requiring digitally-controlled resistors. Three resistance
values are available: 10k
, 50k
, and 100k
. An end-
to-end resistor temperature coefficient of 35ppm/°C
and a ratiometric temperature coefficient of 5ppm/°C
make the MAX5450–MAX5455 excellent choices for
adjustable gain circuit requiring low-temperature drift
The MAX5450–MAX5455 are available in 10-pin μMAX
and 14-pin TSSOP packages. Each device is guaran-
teed over the extended–industrial temperature range
(-40°C to +85°C).
Applications
Mechanical Potentiometer Replacement
Low-Drift Programmable-Gain Amplifier (PGA)
Volume Control
LCD Screen Adjustment
Adjustable Voltage References
Adjustable Linear Regulators
Programmable Filters, Delays, Time Constants
Impedance Matching
Features
o
Small-Footprint Packages
10-Pin μMAX (MAX5450/MAX5452/MAX5454)
14-Pin TSSOP (MAX5451/MAX5453/MAX5455)
o
256-Tap Positions
o
Independent Up/Down Potentiometer Controls
(MAX5451/MAX5453/MAX5455)
o
Ultra-Low 0.1μA Supply Current
o
+2.7V to +5.5V Single-Supply Operation
o
Low 35ppm/°C End-to-End Temperature
Coefficient
o
Power-On Reset Sets Wiper to Midscale
(Position 127)
o
Glitchless Switching Between the Resistor Taps
o
10k
, 50k
, 100k
Resistance Values
M
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
________________________________________________________________
Maxim Integrated Products
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.
1
1
2
3
4
5
10
9
8
7
6
INC
GND
W2
W1
V
DD
MAX5450
MAX5452
MAX5454
μ
MAX
TOP VIEW
L2
L1
14
13
12
11
10
9
8
1
2
3
4
5
6
7
GND
V
DD
MAX5451
MAX5453
MAX5455
W2
H2
L2
L1
H1
W1
TSSOP
U/D
CS1
CS2
INC1
INC2
U/D1
U/D2
CS2
CS1
Pin Configurations
19-1997; Rev 0; 4/01
Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
R (k
)
MAX5450
EUB
MAX5451
EUD
MAX5452
EUB
MAX5453
EUD
MAX5454
EUB
MAX5455
EUD
-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
10
μ
MAX
14 TSSOP
10
μ
MAX
14 TSSOP
10
μ
MAX
14 TSSOP
10
10
50
50
100
100
相關(guān)PDF資料
PDF描述
MAX5451EUD Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
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MAX5457EEE Stereo Audio Taper Potentiometers with Pushbutton Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5451EUD 功能描述:數(shù)字電位計 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
MAX5451EUD+ 功能描述:數(shù)字電位計 IC Dual 256-Tap Up/Down Interface 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
MAX5451EUD+T 功能描述:數(shù)字電位計 IC Dual 256-Tap Up/Down Interface 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
MAX5451EUD-T 功能描述:數(shù)字電位計 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
MAX5452EUB 功能描述:數(shù)字電位計 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
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