ALD4701ASBL

Overview

The ALD4701ASBL is a quad monolithic CMOS micropower operational amplifier manufactured by Advanced Linear Devices. It features rail-to-rail input and output voltage ranges, making it suitable for low-voltage single or dual supply systems ranging from +2V to +10V single supply or ±1V to ±5V dual supplies. The device offers a unity gain bandwidth of 0.7MHz and a slew rate of 0.7V/µs at +5V single supply. Key electrical characteristics include an extremely low typical input bias current of 1.0pA, high open-loop voltage gain of up to 100V/mV, and low power dissipation of 5mW. 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 signal voltages to operate near the positive and negative supply rails.
• Extremely low input bias currents of 1.0pA typical ensure minimal distortion for high source impedance applications.
• Micropower operation provides low power dissipation of 5mW, reducing self-heating and improving reliability.
• Unity gain stable design with internal frequency compensation eliminates the need for external nulling resistors.

Applications

• Voltage follower/buffer/amplifier circuits
• Charge integrator and photodiode amplifier designs
• Data acquisition systems and sensor/transducer amplifiers
• High performance portable instruments and active filters
• Sample/Hold amplifiers and picoammeter configurations

Procurement Notes

Verify the specific ordering suffix 'SBL' corresponds to the 14-pin SOIC package and commercial temperature grade (0°C to +70°C). Confirm RoHS compliance status as indicated by the 'L' suffix in the manufacturer's ordering information. Ensure static control procedures are followed during handling due to ESD sensitivity. Cross-reference the datasheet revision date to confirm parameter validity against current production batches.

Selection Notes

Select this component when designing analog circuits requiring rail-to-rail performance on low voltage supplies such as battery-operated devices. It serves as a versatile alternative to LM324 or ICL7641 types where lower power consumption and higher input impedance are critical. Consider the 0.7V/µs slew rate and 0.7MHz bandwidth limits for signal processing speed requirements. The symmetrical output drive capability makes it suitable for push-pull voltage drive applications.

Part Context

The ALD4701 series includes variants like ALD4701A, ALD4701B, and ALD4701, differentiated primarily by offset voltage specifications. The ALD4701ASBL specifically denotes the commercial grade version in a plastic SOIC-14 package. This family utilizes Advanced Linear Devices' enhanced ACMOS silicon gate process to achieve high reliability and robust performance in temperature-extreme environments.

Replacement Considerations

Public confirmed substitute part numbers: ALD4701APBL, ALD4701BSBL, ALD4701BPBL, ALD4701SBL, ALD4701PBL.