ALD1706APAL

Overview

The ALD1706APAL is a monolithic CMOS ultra 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. The device offers a unity gain bandwidth of 0.7MHz, a slew rate of 0.7V/µs, and extremely low input bias currents with a typical value of 1.0pA. It operates within an ambient temperature range of 0°C to +70°C and is housed in an 8-pin PDIP package.

Feature Summary

• Rail-to-rail input and output voltage capabilities allow signal levels to approach supply rails.
• Internally compensated for unity gain stability without requiring external frequency compensation components.
• Extremely low input bias current ensures minimal distortion for high source impedance applications.
• Output stage includes short circuit protection and can drive capacitive loads up to 25pF.

Applications

• Photodiode amplifiers
• Charge integrators
• Picoammeters
• High performance portable instruments

Procurement Notes

Verify the specific suffix 'PAL' corresponds to the 8-pin Plastic DIP (PDIP) package configuration. 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 inherent to CMOS technology.

Selection Notes

Select this component when designing circuits that require low power dissipation combined with high input impedance. It is appropriate for battery-operated systems where supply voltages may vary between single and dual configurations. Consider the 0.7MHz bandwidth and 0.7V/µs slew rate for signal conditioning tasks that do not demand high-speed performance but require precision at low frequencies.

Part Context

This part belongs to the ALD1706 family of ultra micropower rail-to-rail CMOS operational amplifiers. The 'A' designation typically indicates specific offset voltage trimming characteristics compared to other variants like the standard ALD1706. The 'PAL' suffix identifies the physical packaging as an 8-pin plastic dual in-line package, distinguishing it from SOIC or CERDIP options available within the same electrical family.

Replacement Considerations

Direct substitutes include ALD1706BPAL and ALD1706GPAL, which share the same package and general functionality but may differ in offset voltage specifications. Verify pin compatibility and electrical parameter limits before substitution.

FAQ

Does the ALD1706APAL require external frequency compensation?

No, the device is internally compensated for unity gain stability and does not require external compensation components.

What is the maximum capacitive load the output can drive?

The output stage can typically drive capacitive loads up to 25pF.