ALD4702BSBL

Overview

The ALD4702BSBL is a quad monolithic precision CMOS rail-to-rail operational amplifier manufactured by Advanced Linear Devices. It features symmetrical push-pull class AB output drivers and operates on dual supplies from ±2.5V to ±5.0V or single supplies from +5V to +10V. Key electrical specifications include a unity gain bandwidth of 1.5MHz, a slew rate of 1.9V/µs, and typical input bias currents of 1.0pA. The device offers high voltage gain (typically 85V/mV at ±2.5V) and settles to 0.01% in 8µs. It is housed in a 14-pin Small Outline Plastic Dip (SOIC) package with an operating temperature range of 0°C to +70°C.

Feature Summary

• Rail-to-rail input and output voltage ranges allow implementation of numerous analog serial stages without losing operating voltage margin.
• Internally compensated for unity gain stability with no external frequency compensation required.
• Capable of driving high load capacitance up to 4000pF and low resistance loads down to 2KΩ.
• Extremely low input bias currents make the device ideal for high source impedance applications.

Applications

• Voltage amplifier
• Photodiode amplifier
• Data acquisition systems
• Active filters
• Picoammeter

Procurement Notes

Verify that the ordering suffix 'SBL' corresponds to the lead-free (RoHS compliant) 14-pin SOIC package variant. Confirm the specific grade (ALD4702B) matches the required offset voltage and drift specifications for the application. Ensure the supply voltage requirements align with the specified ±2.5V to ±5.0V dual or +5V to +10V single supply ranges.

Selection Notes

Select this component when a quad op-amp with rail-to-rail capabilities is needed for low-power, precision applications. It is suitable for mixed digital/analog 5V systems due to its compatibility with standard logic levels. Consider the 1.5MHz bandwidth and 1.9V/µs slew rate for signal conditioning tasks requiring moderate speed. The low input bias current is critical for interfacing with high-impedance sensors.

Part Context

The ALD4702 series includes variants ALD4702A, ALD4702B, and ALD4702, offering trade-offs in performance parameters like offset voltage and drift. The ALD4702BSBL specifically denotes the B-grade version in a lead-free SOIC package. It shares pinout compatibility with industry-standard LM324 and ICL7641 types, facilitating drop-in replacements in existing designs while offering superior CMOS characteristics.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.