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DP7251YI-00-T2

Description
Digital Potentiometer, 4 Func, 4 Positions, PDSO24, TSSOP-24
CategoryAnalog mixed-signal IC    converter   
File Size365KB,12 Pages
ManufacturerNidec Copal Electronics
Download Datasheet Parametric View All

DP7251YI-00-T2 Overview

Digital Potentiometer, 4 Func, 4 Positions, PDSO24, TSSOP-24

DP7251YI-00-T2 Parametric

Parameter NameAttribute value
MakerNidec Copal Electronics
package instructionTSSOP-24
Reach Compliance Codeunknown
Converter typeDIGITAL POTENTIOMETER
JESD-30 codeR-PDSO-G24
length7.8 mm
Number of functions4
Number of positions4
Number of terminals24
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP24,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
resistance lawLINEAR
Minimum resistor terminal voltage100000 V
Maximum seat height1.2 mm
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
width4.4 mm
Base Number Matches1
OUTLINE
DIGITAL POTENTIOMETERS
What is digital potentiometer?
Digital potentiometers are variable resistors that can adjust
freely setting values by external digital signals. Further,
these have the same functions as mechanical potentiome-
ters by writing setting values stored when nonvolatile
EEPROM memor y is written and electricity is ON.
Especially, the latest product series achieve low power
consumption and operation currents realize 1mA and
standby currents 1
μ
A.
Standard features are the following:
O
Without moving parts, environmental characteristics
have been improved.
O
Remote control of the product is possible by digital signals.
O
Without moving parts, there are absolutely no hysteresis.
O
Automatic adjustment makes it possible to reduce
numbers of adjustment processes.
O
Space-conscious packages available.
On the contrary, there are some disadvantages in digital
potentiometers. Different from mechanical potentiometers,
the wiper of the digital potentiometers operates like steps.
The numbers of the type of total resistance values are few.
Temperature characteristics are inferior. Because of its
structure of CMOS circuitry used for a wiper changeover
switch, frequency characteristics are also inferior to
mechanical potentiometers. Other disadvantages include
weakness for over-voltage and over-current.
Digital potentiometers are categorized by control types and
their features as below.
O
Up/down interface type
• 3 control signals control wiper position (U/D, INC, CS)
• For wiper positions (number of taps), 32 and 100 types
are available.
O
2-wire interface type
• Uses 2-wire serial interface
• Resistor system permits direct reading of wiper
position and setting.
• Multiple circuits are built into one chip (2-circuit or 4-circuit).
• Wiper position of 64 or 128 and 256 taps per circuit
O
SPI interface type
• Resistor system permits direct reading of wiper
position and setting.
• Multiple circuits are built into one chip (2-circuit or 4-circuit).
• Wiper position of 64 or 256 taps per circuit
• It operates at 3 Mbps faster than 2-wire interface type
O
3-wire interface type
• 3-wire of CLK, DI, and CS controls by serial interface
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