DS1841N+
ActiveTEMPERATURE-CONTROLLED, NV, I²C, LOGARITHMIC RESISTOR
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DS1841N+
ActiveTEMPERATURE-CONTROLLED, NV, I²C, LOGARITHMIC RESISTOR
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | DS1841N+ |
|---|---|
| Configuration | Potentiometer |
| Features | Temperature Sensor, Selectable Address |
| Interface | I2C |
| Memory Type | Non-Volatile |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Number of Taps | 128 |
| Operating Temperature [Max] | 100 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 10-WFDFN Exposed Pad |
| Resistance (Ohms) | 22k |
| Supplier Device Package | 10-TDFN (3x3) |
| Taper | Logarithmic |
| Temperature Coefficient (Typ) | 250 ppm/°C |
| Tolerance | 20 % |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 3.96 | <4d |
| 10 | $ 2.99 | |||
| 25 | $ 2.75 | |||
| 100 | $ 2.49 | |||
| 300 | $ 2.34 | |||
| 500 | $ 2.28 | |||
| 1000 | $ 2.22 | |||
| 2500 | $ 2.15 | |||
Description
General part information
DS1841 Series
The DS1841 is a 7-bit, logarithmic, nonvolatile (NV) digital resistor that features an on-chip temperature sensor and associated analog-to-digital converter (ADC). The integrated temperature sensor indexes a 72-byte NV lookup table (LUT) encompassing a temperature range from -40°C to +100°C. The LUT output can drive the resistor directly or be added to an NV initial-value register (IVR) to drive the resistor. This flexible LUT-based architecture allows the DS1841 to provide a temperature-compensated resistor output with arbitrary slope. Programming is accomplished by an I²C-compatible interface, which can operate at speeds of up to 400kHz.ApplicationsInstrumentation and Industrial ControlsLinear and Nonlinear CompensationMechanical Potentiometer ReplacementOptical Transceivers
Documents
Technical documentation and resources
