ALD2706BSAL

Overview

The ALD2706BSAL is a dual monolithic CMOS micropower operational amplifier manufactured by Advanced Linear Devices, Inc. It features rail-to-rail input and output voltage ranges, making it suitable for low-voltage single and dual supply systems ranging from +2V to +10V or ±1V to ±5V. The device offers a unity gain bandwidth of 200kHz, a slew rate of 0.1V/µs, and extremely low input bias currents typically at 0.1pA. It operates within an ambient temperature range of 0°C to +70°C and is housed in an 8-pin Small Outline Plastic DIP (SOIC) package.

Feature Summary

• Rail-to-rail input and output voltage ranges enable full signal swing near supply rails.
• Extremely low input bias current of 0.1pA minimizes signal distortion in high-impedance circuits.
• Micropower operation with typical supply current of 20µA per amplifier reduces power consumption.
• Internally compensated for unity gain stability without requiring external nulling resistors.

Applications

• Voltage follower and buffer amplifiers
• Photodiode amplifiers and picoammeters
• Charge integrators and sample/hold amplifiers
• High-performance portable instruments

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-pin Small Outline Plastic DIP package when ordering. Confirm that the operating temperature range meets the application requirements, as this variant is rated for 0°C to +70°C. Ensure static control procedures are followed during handling due to ESD sensitivity. Cross-reference the datasheet revision to confirm electrical characteristics match the design specifications.

Selection Notes

Select the ALD2706BSAL for applications requiring low voltage operation and minimal power consumption. The rail-to-rail capability makes it ideal for battery-operated systems where maximizing dynamic range is critical. Consider the 200kHz bandwidth and 0.1V/µs slew rate for moderate-speed signal processing tasks. The low input bias current is advantageous for interfacing with high-impedance sensors or transducers.

Part Context

The ALD2706 series includes variants such as ALD2706A, ALD2706B, and ALD2706, differentiated primarily by offset voltage specifications. The ALD2706BSAL specifically denotes the B-grade version with tighter offset voltage tolerances compared to the standard A grade. All variants share the same pinout and general electrical characteristics, allowing for flexible substitution based on precision requirements.

Replacement Considerations

Direct substitutes include other parts from the ALD2706 family like ALD2706ASAL or ALD2706SAL, provided the offset voltage requirements align. Verify package compatibility and temperature ratings when considering alternatives from other manufacturers.

FAQ

What is the maximum capacitive load the ALD2706BSAL can drive?

The output stage can typically drive up to 25pF of capacitive load while maintaining stability.

How does the rail-to-rail feature benefit circuit design?

It allows the signal input and output voltages to equal the positive and negative supply voltages, providing flexibility in input signal bias levels and enabling more analog serial stages.