DS3901
NOT RECOMMENDED FOR NEW DESIGNSTriple, 8-Bit NV Variable Resistor with Dual Settings and User EEPROM
Low Cost, Small Size, and a Rich Feature Set, Ideal Replacement for Conventional Mechanical-Trimming Resistors, Specifically in Module Applications
- Part Models
- 2
- 1ku List Price
- Starting From $1.51
Part Details
- Three 256-Position Linear Digital Resistors
- Full-Scale Resistances 50kΩ, 30kΩ, 20kΩ
- Dual NV Settings for Each Resistor
- Low Temperature-Coefficient Resistors
- I²C Serial Interface
- Wide Operating Voltage (2.4V to 5.5V)
- Two-Level Password Write Protection
- 232 Bytes of User EEPROM
- Programmable Slave Address
- -40°C to +95°C Operating Temperature Range
The DS3901 is a triple, 8-bit nonvolatile (NV) variable resistor. Each of the resistors has two setting registers, which are selectable by software or by pin configuration. The selected register determines the value of the variable resistor. 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.
Documentation
Data Sheet 1
Reliability Data 1
Design Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS3901E+ | Thin Shrink Small-Outline Package | ||
| DS3901E+T&R | Thin Shrink Small-Outline Package |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Dec 11, 2018 - 1754N ASSEMBLY |
||
| DS3901E+ | PRODUCTION | |
| DS3901E+T&R | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
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