參數(shù)資料
型號： MAX5403EUB
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 數(shù)字電位計
英文描述： Audio digital potentiometers
中文描述： DUAL 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10
封裝： MICRO MAX PACKAGE-10
文件頁數(shù)： 8/10頁
文件大?。?/td> 561K
代理商： MAX5403EUB
M
of each SCLK pulse (
Figure 2). After all the data bits
have been shifted in, they are latched into the appropri-
ate potentiometer control register when
CS
transitions
from low to high. Note that if
CS
is not kept low during
the entire data stream, the data will be corrupted and
the device will need to be reloaded.
The first bit A0 (address bit) is used to address one or
the other of the potentiometers for programming.
Potentiometer control register A is selected for writing
when A0 is
‘
zero
’
, and potentiometer control register B
is selected when A0 is one.
The MAX5403/MAX5404/MAX5405 feature POR circuitry
that sets the wiper to the midscale position at power-up.
Applications Information
The MAX5403/MAX5404/MAX5405 are intended for a
variety of circuits where accurate, fine-tuning adjustable
resistance is required, such as in adjustable voltage or
adjustable gain circuit configurations. It is primarily used
in either a potentiometer divider or a variable resistor
configuration.
Adjustable Current to Voltage Converter
Figure 5 shows the MAX5403/MAX5404/MAX5405 being
used with a MAX4250 low-noise op amp to fine tune a
current to voltage converter. Pins H
B
and W
B
of the
MAX5403/MAX5404/MAX5405 3-terminal potentiometer
(only pin W
A
of the 2-terminal variable resistor) are con-
nected to the node between R3 and R2 (pin L
X
is con-
nected to ground). Circuit space is minimized due to
both devices
’
packaging.
Adjustable Gain Amplifier
Figure 6 shows how to use the MAX5403/MAX5404/
MAX5405 to digitally adjust the gain of a noninverting op
amp configuration. In Figure 6a, connect the MAX5403/
MAX5404/MAX5405 as a 2-terminal variable resistor in
series with a resistor to ground to form the adjustable
gain control of a noninverting amplifier.
Similarly, Figure 6b shows how to use the MAX5403/
MAX5404/MAX5405 as a 3-terminal potentiometer. In
this application the MAX5403/MAX5404/MAX5405 low
5ppm/
°
C ratiometric tempco allows for a very stable
adjustable gain-configuration overtemperature.
Dual 256-Tap, Low-Drift,
Digital Potentiometers in 10-μMAX
8
_______________________________________________________________________________________
SCLK
POT REGISTER LOADED
9TH CLOCK PULSE
1ST CLOCK PULSE
DIN
A0
TIME
D7
D6
D5
D4
D3
D2
D1
D0
CS
MSB
LSB
Figure 2. Potentiometer Serial Data Timing Circuit
CS
SCLK
DIN
t
CSO
t
CSS
t
CL
t
DS
t
DH
t
CH
t
CSH
t
CSW
t
CP
t
CS1
Figure 3. Detailed Serial Interface Timing Diagram
相關PDF資料
PDF描述
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相關代理商/技術參數(shù)
參數(shù)描述
MAX5403EUB+ 功能描述:數(shù)字電位計 IC Dual 256-Tap Low Drift 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MAX5403EUB+T 功能描述:數(shù)字電位計 IC Dual 256-Tap Low Drift 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MAX5403EUB-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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MAX5403EUB-TG075 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX5404EUB 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
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