AD5160BRJZ100-RL7 is the 100 kohm version of the AD5160 256-position SPI-compatible digital potentiometer. Its order code must not be confused with the 10 kohm version: the interface and package are shared, but the end-to-end resistance changes the impedance and step size seen by the surrounding analog circuit. Operation is specified from 2.7 V to 5.5 V, and the wiper powers up at midscale before software programming. This makes the device suitable for digitally adjustable analog networks where a defined startup position is useful.
Key Specifications
| Parameter | Verified Value |
|---|---|
| Device Function | SPI-compatible digital potentiometer |
| Positions | 256 (tap positions) |
| End To End Resistance | 100 kohm (exact 100 variant) |
| Supply Voltage | 2.7 to 5.5 V |
| Power On Position | Midscale (preset) |
| Resistance Temperature Coefficient | 45 ppm/C (typical family characteristic) |
| Temperature Range | -40 to +125 C (exact variant) |
| Package | SOT-23-8 (8-lead RJ package) |
Engineering Selection Notes
- The exact end-to-end resistance is 100 kohm; do not substitute the 10 kohm variant solely because package and SPI interface match.
- A 256-position code range does not mean 8-bit absolute resistance accuracy; tolerance and wiper resistance remain part of the analog error budget.
- Midscale power-up gives a deterministic startup code before the host writes the desired setting.
- The exact BRJZ100-RL7 variant uses SOT-23-8, -40 to +125 C operation and 7-inch tape-and-reel packing.
Lifecycle and Procurement Context
Manufacturer lifecycle status: Production. This status is included for procurement planning and should be rechecked for long-term BOM decisions.
The AD5160BRJZ10-RL7 (10 kΩ) is a lower-resistance ordering option in the AD5160 family, not a resistance-identical substitute. Compare exact resistance requirements or browse other digital potentiometers before changing a BOM.
