ADR280AKS-REEL7

Overview

The ADR280AKS-REEL7 is a 1.2 V precision band gap voltage reference manufactured by Analog Devices Inc., packaged in a 3-lead SC70 format. It operates within a supply voltage range of 2.4 V to 5.5 V and maintains an output accuracy between 1.195 V and 1.205 V across the industrial temperature range of −40°C to +85°C. The device features a maximum temperature coefficient of 40 ppm/°C, ultralow supply current of 16 μA maximum, and high power supply ripple rejection of –80 dB at 220 Hz.

Feature Summary

• Provides a stable 1.2 V core band gap reference optimized for applications with heavy dynamic supply variations.
• Features excellent line regulation and high power supply ripple rejection to maintain performance during battery voltage fluctuations.
• Designed for ultralow power consumption suitable for portable and battery-operated electronics.

Applications

• GSM, GPRS, and 3G mobile station analog baseband ICs
• Portable battery-operated electronics
• Low voltage converter references
• Wireless devices

Procurement Notes

Verify the specific package suffix (KS) corresponds to the 3-Lead SC70 configuration required for your layout. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process. Ensure the ordering quantity matches the reel size specifications provided in the manufacturer's ordering guide to avoid packaging discrepancies.

Selection Notes

Select this component when a compact footprint and low quiescent current are critical constraints. The fixed 1.2 V output requires external buffering or scaling via operational amplifiers for higher voltage or current demands. Verify that the application supply voltage remains within the specified 2.4 V to 5.5 V range to ensure proper operation and stability.

Part Context

This part belongs to the ADR280 series of ultralow power voltage references from Analog Devices. It shares architectural similarities with other band gap references but distinguishes itself through its specific optimization for high PSRR in noisy RF environments. The SC70 package option provides a smaller form factor compared to standard SOT-23 variants.

Replacement Considerations

Direct substitutes include the ADR280ART-REEL7 for the SOT-23 package variant. Other models in the ADR280 family offer different packaging options such as the ADR280AKS-R2 for tape-and-reel quantities of 250 units. Verify pinout compatibility before substitution.