DS3906
PRODUCTIONTriple NV Low Step Size Variable Resistor Plus Memory
- Part Models
- 2
- 1ku List Price
- Starting From $1.46
Part Details
- Three Programmable Resistors for Low Step-Size Applications (Ohm and Subohm)
- Resistor Settings are NV
- 16-Byte NV User Memory (EEPROM)
- I²C-Compatible Serial Interface
- Up to 8 Devices Can be Multidropped on the Same I²C Bus
- Low Power Consumption
- Wide Operating Voltage (2.7V to 5.5V)
- Operating Temperature Range: -40°C to +85°C
The DS3906 is intended for low resistance, small step-size applications. It contains three nonvolatile (NV), low-temperature coefficient, variable digital resistors that are capable of ohm and subohm increments when used in parallel with a fixed external resistor. All three of the DS3906's resistors have 64 positions (plus a high-Z state) with a pseudo-log response cleverly chosen to have a linear equivalent resistance when paired with an external resistor (see graphs below). The DS3906 also contains 16 bytes of user EEPROM that, in addition to the resistors, are controlled through an I²C-compatible serial interface. Three address pins allow up to eight DS3906s to be placed on the same I²C bus.
The DS3906 can also be factory cutomized to provide a variety of transfer functions depending on user requirements. Contact for additional information.
Applications
- Low Ohm, Fine Resolution Driver Control for LED Display Panels
- Low Ohm, Fine Resolution Instrumentation Control
Documentation
Data Sheet 1
Reliability Data 1
Design Note 3
Technical Articles 3
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 |
|---|---|---|---|
| DS3906U+ | 10-MINI_SO-N/A | ||
| DS3906U+T&R | 10-MINI_SO-N/A |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 19, 2018 - 1753N ASSEMBLY |
||
| DS3906U+ | PRODUCTION | |
| DS3906U+T&R | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| 1-Wire Memory (EPROM, EEPROM, ROM) 1 | ||
| DS2432 | PRODUCTION | 1Kb Protected 1-Wire EEPROM with SHA-1 Engine |
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