參數(shù)資料
型號(hào): MAX5401EKA-T
廠商: Maxim Integrated Products
文件頁數(shù): 1/8頁
文件大?。?/td> 0K
描述: IC DIGITAL POT 256-TAP SOT23-8
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1
系列: SOT-PoT™
接片: 256
電阻(歐姆): 100k
電路數(shù): 1
溫度系數(shù): 標(biāo)準(zhǔn)值 50 ppm/°C
存儲(chǔ)器類型: 易失
接口: 3 線串行(芯片選擇)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-8
供應(yīng)商設(shè)備封裝: SOT-23-8
包裝: 剪切帶 (CT)
其它名稱: MAX5401EKA-TCT
General Description
The MAX5400/MAX5401 digital potentiometers offer
256-tap SOT-PoT digitally controlled variable resis-
tors in tiny 8-pin SOT23 packages. Each device func-
tions as a mechanical potentiometer, consisting of a
fixed resistor string with a digitally controlled wiper con-
tact. They operate from +2.7V to +5.5V single-supply
voltages and use an ultra-low supply current of 0.1A.
These devices also provide glitchless switching
between resistor taps, as well as a convenient power-
on reset that sets the wiper to the midscale position at
power-up. A low 5ppm/°C ratiometric temperature coef-
ficient makes it ideal for applications requiring low drift.
The MAX5400/MAX5401 serve well in applications
requiring digitally controlled resistors, including
adjustable voltage references and programmable gain
amplifiers (PGAs). A nominal end-to-end resistor tem-
perature coefficient of 50ppm/°C allows these parts to
be used as variable resistors in applications such as
low-tempco adjustable gain and other circuit configura-
tions.
Two resistance values are available: 50k
(MAX5400)
and 100k
(MAX5401). Each device is guaranteed over
the extended industrial temperature range (-40°C to
+85°C).
________________________Applications
Mechanical Potentiometer Replacement
Low-Drift PGAs
Adjustable Voltage References
Features
o Miniature 8-Pin SOT23 (3mm x 3mm)
o 256 Tap Positions
o Ultra-Low 0.1A Supply Current
o Single-Supply Operation: +2.7V to +5.5V
o Low Ratiometric Temperature Coefficient:
5ppm/°C
o Power-On Reset: Wiper Goes to Midscale
(Position 128)
o Glitchless Switching Between the Resistor Taps
o 3-Wire SPI-Interface Compatible
o 50k/100k Resistor Values
MAX5400/MAX5401
256-Tap SOT-PoT,
Low-Drift Digital Potentiometers in SOT23
________________________________________________________________ Maxim Integrated Products
1
19-1848; Rev 0; 10/00
Ordering Information
SOT-PoT is a trademark of Maxim Integrated Products.
SPI is a trademark of Motorola, Inc.
Pin Configuration appears at end of data sheet.
PART
TEMP.
RANGE
PIN-
PACKAGE
R (k
)
MAX5400EKA-T
-40
°C to +85°C
8-SOT23
50
MAX5401EKA-T
-40
°C to +85°C
8-SOT23
100
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX5400/MAX5401
POR
8
8-BIT
SHIFT
REGISTER
CLOCK
LOGIC
8-BIT
LATCH
SCLK
DIN
CS
8
H
W
L
DECODER
VDD
GND
Functional Diagram
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