DS3903E Overview
A package containing it contains 20-TSSOP (0.173, 4.40mm Width).As of Non-Volatile, this pentometer has been stored.The digital potentiometer embeds 3 circuits.Tube package contains the access code to secure the digital potentiometer.For this pentometer, there are 128 taps that protect against overcurrent.In total, pentometer has 128 positions.Digital potentiometer is designed for terminations of 20.As a reference, this programmable potentiometer includes 3 functions.It is shown that, as a result, the speed potentiometers will have a total resistance of 90000Ohm.It operates on 3V and is powered by it.A 20 pin can be seen in the digi devices.You should mount in the way of Surface Mount.2.7V~5.5V voltage is available from the potentionmeter.With this digital potentiometer, the temperature range is -40°C~85°C.A flow rate limit of 10kOhm 90kOhm is possible.In the DS3903 family, pentometer belongs.Mounted to Surface Mount is digital potentiometer.potentiameter with 20 pins.Selectable Address can be found using this digital variable resistor.High accuracy can be achieved with 400kHz frequency.When the current is 150μA, potentiameter consumes quiescent current.
DS3903E Features
Available in 20-TSSOP (0.173, 4.40mm Width) package
3 Circuits
Mounting Type: Surface Mount
Operate temperature at the range of -40°C~85°C
20 pins
Quiescent Current at 150μA

DS3903E Applications
There are a lot of Maxim Integrated
DS3903E Digital Potentiometers applications.

Power supply
Power meter
Automatic detection of equipment
Optic fiber network
Adjusting the LCD Display
Voltage control
Replaces mechanical potentiometers
Matching Linear Impedance
Adjust VCOM settings
Communication device

Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173, 4.40mm Width)
Number of Pins	20
Operating Temperature	-40°C~85°C
Packaging	Tube
Published	2002
Tolerance	±20%
JESD-609 Code	e3
Feature	Selectable Address
Pbfree Code	yes
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	20
ECCN Code	EAR99
Temperature Coefficient	300 ppm/°C
Resistance	10kOhm 90kOhm
Number of Positions	128
Terminal Finish	Matte Tin (Sn)
Voltage - Supply	2.7V~5.5V
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	260
Number of Functions	3
Supply Voltage	3V
Terminal Pitch	0.65mm
Frequency	400kHz
Time@Peak Reflow Temperature-Max (s)	30
Base Part Number	DS3903
Pin Count	20
Configuration	Potentiometer
Interface	I2C
Number of Circuits	3
Memory Type	Non-Volatile
Quiescent Current	150μA
Taper	Linear
Number of Taps	128
Total Resistance	90000Ohm
Resistance - Wiper (Ω) (Typ)	250
Resistor Terminal Voltage-Max	5.5V
Temperature Coefficient (Typ)	±300ppm/°C
Length	6.5mm
Height Seated (Max)	1.1mm
Width	4.4mm
Radiation Hardening	No
RoHS Status	Non-RoHS Compliant
Lead Free	Contains Lead