EL5221CYZ

Overview

The EL5221CYZ is a dual, low power, high voltage rail-to-rail input-output buffer manufactured by Renesas Electronics Corporation. It operates on supplies ranging from 4.5V to 16.5V while consuming only 500µA per channel. The device features a -3dB bandwidth of 12MHz and a slew rate of 10V/µs. It provides an output drive capability of 30mA (sink and source) with short circuit current limits of ±120mA. The component is housed in an 8-lead MSOP package and operates over a temperature range of -40°C to +85°C.

Feature Summary

• Rail-to-rail input and output capability for maximum dynamic range
• Low power consumption at 500µA per channel
• High slew rate of 10V/µs and 12MHz bandwidth
• Immune to output phase reversal

Applications

• TFT-LCD drive circuits
• ADC/DAC buffers
• Active filters
• Portable instrumentation

Procurement Notes

Verify the RoHS compliance status as the 'Z' suffix indicates lead-free plus anneal material sets compatible with both SnPb and Pb-free soldering operations. Confirm the specific package drawing number MDP0043 for the 8 LD MSOP form factor. Ensure that supply voltages remain within the 4.5V to 16.5V absolute maximum ratings to prevent damage. Check for any potential phase reversal if input voltages exceed supply rails by more than 0.6V.

Selection Notes

Select this component when a unity gain buffer requires rail-to-rail performance across a wide supply voltage range. It is suitable for applications demanding low quiescent current alongside high-speed signal buffering. Consider the 8-lead MSOP package for space-constrained designs requiring surface mount technology. Evaluate thermal dissipation requirements if driving heavy capacitive loads or operating at elevated ambient temperatures.

Part Context

The EL5221 series includes variants such as the EL5221CW and EL5221CY, available in SOT-23 and MSOP packages respectively. The EL5221CYZ specifically denotes the lead-free version in the 8-lead MSOP configuration. This part belongs to a family of dual buffer amplifiers designed for general-purpose analog signal conditioning and interface applications.

Replacement Considerations

EL5221CY-T7

FAQ

What is the maximum short circuit current allowed?

The EL5221 limits the short circuit current to ±120mA if the output is directly shorted to the positive or negative supply.

How does the device handle inputs beyond the supply rails?

The EL5221 is immune to output phase reversal as long as the input voltage is limited from VS- -0.5V to VS+ +0.5V.