DS3904：Triple, 128-Position, Nonvolatile, Variable, Digital Resistor/Switch
Triple, 128-Position, Nonvolatile, Variable, Digital Resistors/Switches Simplify Automated PC Power-Supply Trim
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.
Key Features
| DS3904, DS3905: Typical Operating Circuit Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| DS3904-DS3905 Data Sheet | DS3904-DS3905.pdf |
Parametrics
| Part Number | Taper | POTs | Control Interface | Wiper Memory | Steps | REND-TO-END (kΩ) | Res. Tol. (%) | Temp. Coeff. (ppm/°C) | ICC @5V (µA) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|
| typ | max | See Notes | |||||||||
| DS3904 | Linear | 3 | 2-Wire Addressable | Non-Volatile | 128 | 20 | 25 | 125 | 200 | µMAX/8 | $0.83 @1k |
Quality and Environmental Data
Related Products
- DS3903：Triple 128-Position Nonvolatile Digital Potentiometer
Ordering Information
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|---|
| DS3904U-010+ | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | ||
| DS3904U-010+T&R | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | ||
| DS3904U-020 | 20kohms | No Longer Available | DS3904U-020+ | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | No |
| DS3904U-020+ | 20kohms | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | |
| DS3904U-020+T&R | 20kohms | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | |
| DS3904U-020/T&R | 20kohms | No Longer Available | DS3904U-020+T&R | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | No |
- DS3904-DS3905.pdf DS3904
- Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface MAX5492
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- 2-Wire Controlled Digital DIP Switch Using the DS3904 DS3904
- DS3904.pdf DS3904
- DS3904-DS3905.pdf DS3905
