ALD1706ASAL

Overview

The ALD1706ASAL is a monolithic CMOS ultra micropower operational amplifier manufactured by Advanced Linear Devices. It features rail-to-rail input and output voltage ranges, allowing operation with single supplies from +2V to +10V or dual supplies from ±1V to ±5V. The device offers a maximum supply current of 40 µA at 5V, a unity gain bandwidth of 0.7 MHz, and a slew rate of 0.7 V/µs. It includes internal offset voltage trimming, output short circuit protection, and operates within a temperature range of 0°C to +70°C in an 8-pin SOIC package.

Feature Summary

• Rail-to-rail input and output voltage capability for flexible signal handling near supply rails
• Ultra micropower consumption with typical input bias currents as low as 0.1 pA
• Internal offset voltage trimming eliminates the need for external nulling circuits
• Unity gain stable without requiring external frequency compensation components

Applications

• Photodiode amplifiers
• Charge integrators
• High performance portable instruments
• Data acquisition systems
• Picoammeters

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the lead-free (RoHS compliant) 8-pin Small Outline Plastic DIP (SOIC) package variant. Confirm that the operating temperature range aligns with the 0°C to +70°C specification for this package type rather than the extended -55°C to +125°C range available in other packages like CERDIP. Ensure static control procedures are followed due to ESD sensitivity.

Selection Notes

Select this component when designing battery-operated systems requiring very low quiescent current and high input impedance. It is suitable for applications involving high source impedance sensors where minimal loading is critical. Consider the 0.7 MHz bandwidth and 0.7 V/µs slew rate for moderate speed signal conditioning tasks. Verify that the load requirements do not exceed the specified capacitive and resistive drive capabilities.

Part Context

This part belongs to the ALD1706 family of ultra micropower rail-to-rail CMOS operational amplifiers. The family includes variants such as ALD1706A, ALD1706B, and ALD1706G, which differ primarily in input offset voltage specifications. The ALD1706ASAL specifically denotes the standard offset version housed in a lead-free surface-mount package, designed for general-purpose analog applications in portable electronics.

Replacement Considerations

Direct pin-compatible substitutes within the same manufacturer's lineup include ALD1706BSAL and ALD1706GSAL, which offer different offset voltage grades. Cross-manufacturer replacements should be evaluated based on matching rail-to-rail input/output characteristics, supply current limits, and package dimensions.