ALD1701BSAL

Overview

The ALD1701BSAL is a micropower rail-to-rail CMOS operational amplifier manufactured by Advanced Linear Devices. It operates on dual supplies from ±1V to ±5V or single supplies from +2V to +10V. Key electrical specifications include a unity gain bandwidth of 700 kHz, a slew rate of 0.7 V/µs, and a maximum supply current of 250 µA at 5V. The device features extremely low input bias currents with a typical value of 1 pA and a maximum of 30 pA at 25°C. Input offset voltage ranges from 0.9 mV to 10.0 mV depending on conditions. It provides high open-loop voltage gain of up to 100 V/mV and includes output short-circuit protection.

Feature Summary

• Rail-to-rail input and output voltage capabilities for full signal swing near supply rails
• Extremely low input bias current suitable for high source impedance applications
• Internally compensated for unity gain stability without external components
• Output stage capable of driving capacitive loads up to 50pF

Applications

• Photodiode amplifiers
• Picoammeters
• High performance portable instruments
• Active filters
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-pin Small Outline Plastic DIP (SOIC) package with lead-free (RoHS) compliant terminations as defined in the ordering information. Confirm that the operating temperature range requirements align with the commercial grade specification of 0°C to +70°C. Ensure static control procedures are followed during handling due to ESD sensitivity.

Selection Notes

Select this component when designing circuits requiring low power consumption alongside rail-to-rail signal processing capabilities. It is appropriate for battery-operated systems where supply voltages range between +2V and +10V. Consider its high input impedance and low bias current for interfacing with high-impedance sensors. Verify that the required bandwidth and slew rate meet the signal frequency demands of the application.

Part Context

This part belongs to the ALD1701 family of micropower operational amplifiers, which also includes variants such as the ALD1701A, ALD1701, and ALD1701G. These devices share similar architectural features but may differ in specific electrical parameter tolerances and temperature ranges. The ALD1701 series is designed to offer a trade-off between performance parameters for broad analog applications using standard industry pin configurations.

Replacement Considerations

Direct substitutes within the same family include ALD1701ASAL, ALD1701SAL, and ALD1701GSAL. These parts share the same SOIC-8 package and general functionality but may exhibit different input offset voltage or bias current specifications. Verify compatibility with existing circuit designs before substitution.