ALD4701APBL

Overview

The ALD4701APBL 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 single or dual supply systems ranging from +2V to +10V or ±1V to ±5V respectively. The device offers a unity gain bandwidth of 700 kHz and a slew rate of 0.7 V/µs at +5V single supply. Key electrical characteristics include a maximum supply current of 1 mA for all four amplifiers, typical input bias current of 1 pA, and large signal voltage gain up to 300 V/mV. It operates within an ambient temperature range of 0°C to +70°C and is housed in a 14-pin Small Outline Plastic DIP (SOIC) package.

Feature Summary

• Rail-to-rail input and output voltage capabilities allow operation near supply rails.
• Micropower consumption with total supply current of 1 mA maximum at 5V.
• Extremely low input bias current of 1.0 pA typical value.
• Unity gain stable with high open-loop voltage gain.

Applications

• Voltage follower/buffer/amplifier circuits
• Charge integrator applications
• Photodiode amplifier configurations
• Data acquisition systems
• High performance portable instruments

Procurement Notes

Verify the specific suffix PBL indicates the 14-pin Small Outline Plastic DIP package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status as the 'L' suffix denotes lead-free construction. Ensure the ordering code matches the required quad configuration and that the manufacturer is Advanced Linear Devices. Cross-reference the datasheet revision for any updates to absolute maximum ratings or electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when designing circuits requiring rail-to-rail signal swing with low power consumption. It is appropriate for mixed digital/analog systems operating on single or dual supplies. Consider its high input impedance and low bias current for high source impedance applications. Verify that the 700 kHz bandwidth and 0.7 V/µs slew rate meet the signal processing requirements. Ensure the SOIC-14 package fits the PCB layout constraints.

Part Context

The ALD4701 series includes variants A, B, and standard versions, differentiated primarily by offset voltage specifications. The ALD4701APBL specifically refers to the standard version in the plastic DIP package. It belongs to the family of quad micro-power rail-to-rail CMOS operational amplifiers designed for battery-operated and general-purpose analog applications. The device utilizes enhanced ACMOS silicon gate process technology.

Replacement Considerations

The datasheet notes compatibility with industry standard pin configurations of LM324 and ICL7641 types. However, direct replacement requires verification of electrical parameters such as bandwidth, slew rate, and input bias current. No specific substitute part numbers are confirmed in the provided documentation.