ADR280AKSZ-R2

Overview

The ADR280AKSZ-R2 is a precision band gap voltage reference providing a nominal 1.2 V output. It operates within a supply voltage range of 2.4 V to 5.5 V and draws a maximum supply current of 16 μA. The device features excellent line regulation with a typical value of 2 ppm/V and high power supply ripple rejection of –80 dB at 220 Hz. It exhibits a maximum temperature coefficient of 40 ppm/°C over the extended industrial range of −40°C to +85°C. Output noise density is typically 12.5 nV/√Hz, and it is housed in a compact 3-lead SC70 package.

Feature Summary

• Ultralow power consumption suitable for battery-operated electronics
• High power supply ripple rejection optimized for dynamic supply variations
• Compact 3-lead SC70 surface-mount package design

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 ordering suffix to confirm the package type and reel quantity. Confirm RoHS compliance status as indicated by the Z suffix if required. Ensure the operating temperature range matches the application requirements. Check for any specific branding or marking codes associated with the KS-3 package option before finalizing procurement.

Selection Notes

Select this component when a low-power, high-PSRR reference is needed for applications with heavy dynamic supply variations. It serves as a core band gap voltage that can be buffered or scaled using external operational amplifiers. Consider the 100 μA drive capability limit and plan for buffering if higher load currents are required.

Part Context

This part belongs to the ADR280 family of ultralow power voltage references from Analog Devices. It provides a stable 1.2 V band gap core voltage designed specifically for mobile communication standards. The AKSZ-R2 designation indicates the SC70 package variant with RoHS compliance and a specific reel quantity.

Replacement Considerations

ADR280ARTZ-R2

FAQ

Can the ADR280AKSZ-R2 output voltage be adjusted?

Yes, the device provides a core 1.2 V band gap voltage that can be tailored to different voltages or used to create current sources by adding external operational amplifiers and discrete components.

What is the maximum load current the ADR280 can drive directly?

The ADR280 is able to drive a maximum load of only 100 μA directly. For higher current applications, users should buffer the output using an external op amp.