GENERAL DESCRIPTION
Additionally, all three resistors have a high-impedance setting. Resistor R0 has the additional flexibility of allowing an external shunt resistor to provide increased dynamic range. Internal address settings allow the DS3901 slave address to be programmed to one of 128 possible addresses. The DS3901 also features an optional password-protection scheme that allows the protection of sensitive data. FEATURES
o Three 256-Position Linear Digital Resistors o Full-Scale Resistances 50kΩ, 30kΩ, 20kΩ o Dual NV Settings for Each Resistor o o o o Low Temperature-Coefficient Resistors I2C* Serial Interface Wide Operating Voltage (2.4V to 5.5V) Two-Level Password Write Protection DS3901 o 232 Bytes of User EEPROM o Programmable Slave Address o -40°C to +95°C Operating Temperature Range APPLICATIONS
Optical Transceivers Optical Transponders Instrumentation and Industrial Controls RF Power Amps Audio Power-Amp Biasing Replacement for Mechanical Variable Resistors and DIP Switches...
Maxim Integrated
