AS2348S-13

Overview

The AS2348S-13 is a dual-channel CMOS operational amplifier from Diodes Incorporated, housed in an SO-8 package. It operates on single supplies from 1.6V to 5.5V or dual supplies of ±0.8V to ±2.5V. Key electrical parameters include a gain bandwidth product of 1MHz, supply current of 70μA per channel, input offset voltage of 0.5mV (typ), and input bias current of 1pA. The device features rail-to-rail input and output capabilities with extended common-mode voltage range.

Feature Summary

• Rail-to-rail input and output operation with extended common-mode voltage capability beyond the supply rails
• Ultra-low input bias current suitable for high-impedance sensor interfaces
• Low noise density and low input offset voltage drift for precision signal conditioning
• Unity-gain stable with capacitive loads up to 100pF

Applications

• Active filters
• Sensor interfaces
• Photodiode amplification
• Smoke alarms and CO detectors
• Medical instrumentation such as pulse blood oximeters and glucose meters

Procurement Notes

Verify the specific ordering suffix 'S-13' corresponds to the SO-8 package and 13-inch tape and reel carrier configuration. Confirm that the component meets RoHS compliance requirements including halogen and antimony-free specifications. Ensure the selected variant aligns with the required operating temperature range of -40°C to +125°C for the intended application environment.

Selection Notes

Select this component when a dual-channel amplifier with rail-to-rail performance is required under low power constraints. The 1MHz gain bandwidth and 70μA supply current offer a balanced speed-to-power ratio. Consider the 1pA input bias current for applications involving high source impedance sensors where leakage currents must be minimized.

Part Context

This part belongs to the AS348/AS2348 family of low noise, low power, 1MHz RRIO single/dual CMOS operational amplifiers. While the AS348 is available in SOT25 packages, the AS2348 variant specifically provides dual-channel functionality in industry-standard MSOP-8 and SO-8 packages. The series is designed for harsh environments with high ESD tolerance.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the documentation.