AS1710B-ASCT

Overview

The AS1710B-ASCT is a single-channel, high-output-drive CMOS operational amplifier manufactured by ams OSRAM. It operates on a single supply voltage ranging from 2.7V to 5.5V and delivers up to 200mA of peak output current. Key electrical parameters include a gain-bandwidth product of 10MHz, a slew rate of 10V/µs, and a quiescent supply current of 1.6mA at 2.7V. The device features rail-to-rail input and output capabilities, an input offset voltage of ±3mV, and unity-gain stability for capacitive loads up to 100pF. It functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• High-output drive capability delivering up to 200mA peak current
• Rail-to-rail input and output operation across the full supply range
• Integrated shutdown mode with ultra-low standby current consumption
• Unity-gain stable performance with capacitive loads up to 100pF

Applications

• Portable headphone speaker drivers for 32Ω loads
• Biasing RF power amplifiers in wireless handset applications
• Battery-operated audio devices and sound ports/cards
• TFT panel drivers and DAC converter buffers

Procurement Notes

Verify the specific ordering code AS1710B-ASCT against official manufacturer documentation to confirm package type and revision status. Ensure compatibility with single-supply designs operating between 2.7V and 5.5V. Check for moisture sensitivity handling requirements during assembly. Confirm that the SC70-5 package aligns with your PCB footprint constraints. Validate thermal dissipation limits under maximum load conditions.

Selection Notes

Select this component when designing portable audio circuits requiring high current drive without dual supplies. The rail-to-rail I/O feature maximizes dynamic range in low-voltage systems. Consider the 10MHz bandwidth and 10V/µs slew rate for signal fidelity requirements. Evaluate the SC70-5 package size for space-constrained mobile applications. Ensure the absence of a shutdown pin matches the design's control logic needs.

Part Context

This part belongs to the AS1710/AS1712 series of high-output-drive op-amps originally developed by austriamicrosystems AG, now ams AG. The series includes variants with and without shutdown functionality. The AS1710B specifically denotes the single-channel version without the shutdown control pin, packaged in SC70-5. This lineage supports battery-powered consumer electronics requiring efficient power management.

Replacement Considerations

The AS1710A-ASCT serves as a direct functional substitute if a shutdown control pin is required instead of the fixed-active configuration found in the B-version.