DS3904
PRODUCTIONTriple, 128-Position, Nonvolatile, Variable, Digital Resistor/Switch
Triple, 128-Position, Nonvolatile, Variable, Digital Resistors/Switches Simplify Automated PC Power-Supply Trim
- Part Models
- 2
- 1ku List Price
- Starting From $1.06
Overview
- Three 20kΩ, 128-Position Linear Digital Resistors
- Resistor Settings are Stored in NV Memory
- Each Resistor has a High-Impedance Setting for Switch Operation to Control Digital Logic
- Low Temperature Coefficient
- 2-Wire Serial Interface
- 2.7V to 5.5V Operating Range
- -40°C to +85°C Industrial Temperature
- Packaging: 8-Pin µSOP for DS3904, 10-pin µSOP for DS3905
The DS3904/DS3905 contain three nonvolatile (NV) low temperature coefficient, variable digital resistors. Each resistor has 128 user-selectable positions. Additionally, the DS3904/DS3905 have a high-impedance setting that allows each resistor to function as a digital switch. The DS3904/DS3905 can operate over a 2.7V to 5.5V supply voltage range, and communication with the device is achieved through a 2-wire serial interface. Address pins allow multiple DS3904/DS3905s to operate on the same two-wire bus. The DS3904 has one address pin, allowing two DS3904s to share the bus, while the DS3905 has three address pins, allowing up to eight DS3905s to share a common bus. The low-cost and small size of the DS3904/DS3905 make them ideal replacements for conventional mechanical trimming resistors.
Applications
- Cell Phones/PDAs
- Fibre Optic Transceiver Modules
- Portable Electronics
- Power-Supply Calibration
- Test Equipment
Documentation
Data Sheet 1
Reliability Data 1
Application Note 1
Design Note 3
Technical Articles 2
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 |
|---|---|---|---|
| DS3904U-020+ | Micro-MAX, Thin Shrink Small-Outline | ||
| DS3904U-020+T&R | Micro-MAX, Thin Shrink Small-Outline |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Digital Potentiometers (DigiPOTs) 1 | ||
| DS3903 | PRODUCTION | Triple 128-Position Nonvolatile Digital Potentiometer |
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