ALD4702SBL

Overview

The ALD4702SBL is a quad monolithic precision CMOS operational amplifier featuring rail-to-rail input and output voltage ranges. It operates on single supplies from +5V to +10V or dual supplies from ±2.5V to ±5.0V. Key electrical characteristics include a unity gain bandwidth of 1.5MHz, a slew rate of 1.9V/µs, and extremely low input bias currents with a typical value of 1.0pA. The device offers high voltage gain, settling to 0.01% in 8µs, and can drive capacitive loads up to 4000pF without external compensation.

Feature Summary

• Rail-to-rail input and output voltage ranges allow operation close to supply rails.
• Extremely low input bias current of 1.0pA typical minimizes signal distortion.
• Internally compensated for unity gain stability without external components.
• Capable of driving high load capacitance up to 4000pF.

Applications

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

Procurement Notes

Verify the specific suffix 'SBL' corresponds to the lead-free (RoHS) Small Outline Plastic Dip (SOIC) package variant. Confirm the operating temperature range matches the application requirements, as this suffix typically denotes the commercial grade (0°C to +70°C). Ensure static control procedures are followed due to ESD sensitivity.

Selection Notes

Select this component for applications requiring high input impedance and rail-to-rail swing within a 5V system. It serves as a drop-in replacement for LM324 and ICL7641 types in compatible pin configurations. Consider the 1.5MHz bandwidth and 1.9V/µs slew rate for moderate-speed signal processing tasks.

Part Context

The ALD4702 series includes variants A, B, and standard versions, differentiated by offset voltage specifications. The SBL suffix identifies the SOIC-14 package form factor. This family utilizes an enhanced ACMOS silicon gate process designed for low power dissipation and robust performance in temperature-extreme environments.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.

FAQ

Can the ALD4702SBL operate with inputs extending beyond the supply rails?

Yes, the inputs can extend beyond the supply rails by 300mV.

What is the maximum capacitive load the ALD4702SBL can drive?

The device has a high load capacitance capability of up to 4000pF.

Is external frequency compensation required for the ALD4702SBL?

No, the device is internally compensated and is unity gain stable without requiring external frequency compensation.