AD5220BRZ10-REEL

Overview

The AD5220BRZ10-REEL is a single-channel, 7-bit digital potentiometer IC from Analog Devices, housed in an 8-lead SOIC package. It features a nominal resistance of 10 kΩ with 128 tap positions and linear taper. The device operates on a supply voltage range of 2.7 V to 5.5 V, consuming a typical supply current of 15 µA at 5 V. Control is managed via a three-wire serial interface utilizing Clock (CLK), Chip Select (CS), and Up/Down (U/D) inputs. The wiper position is volatile and resets to the center code (40H) upon power-on.

Feature Summary

• 128-position resolution with 7-bit control and linear taper
• Nominal resistance of 10 kΩ with ±30% tolerance and 800 ppm/°C temperature coefficient
• Three-wire serial interface (CLK, CS, U/D) for wiper adjustment
• Volatile memory with automatic center reset (Code 40H) on power-up

Applications

• Programmable gain amplifier circuits
• Voltage divider networks requiring digital adjustment
• Variable resistor replacement in rheostat configurations

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, as the REEL designation indicates tape-and-reel delivery. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor specifications prior to procurement. Ensure the component version aligns with the intended commercial operating temperature range of -40°C to +85°C.

Selection Notes

Select this model when a single-channel digital potentiometer with 10 kΩ nominal resistance is required. The 7-bit resolution provides 128 distinct steps, suitable for applications where high precision is not critical but cost-effective digital control is needed. Verify that the system logic levels are compatible with the specified VIH and VIL thresholds for the chosen supply voltage.

Part Context

This component belongs to the AD5220 family of 256-position and 33-position digital potentiometers. The BRZ suffix denotes a lead-free, RoHS-compliant variant packaged in an 8-lead Standard Small Outline Package (SOIC_N). The '10' identifier specifies the 10 kΩ nominal resistance value, distinguishing it from other variants offering 50 kΩ or 100 kΩ options within the same series.

Replacement Considerations

Direct pin-compatible substitutes include other AD5220 variants with different resistance values such as AD5220BRZ50 or AD5220BRZ100, provided the resistance requirements match. For automotive applications, the AD5220WBRZ10-REEL7 offers qualified reliability standards while maintaining identical electrical characteristics and pinout.