ALD4706SBL

Overview

The ALD4706SBL is a quad monolithic CMOS ultra micropower operational amplifier manufactured by Advanced Linear Devices. It features rail-to-rail input and output voltage ranges, unity gain stability, and extremely low input bias currents of 0.1pA typical. The device operates on dual supplies from ±1V to ±5V or single supplies from +2V to +10V. Key electrical parameters include a unity gain bandwidth of 200kHz, a slew rate of 0.17V/µs, and a maximum total supply current of 200µA at 5V. It is housed in a 14-pin Small Outline (SOIC) package with an operating temperature range of 0°C to +70°C.

Feature Summary

• Rail-to-rail input and output voltage capability for flexible signal handling near supply rails
• Ultra micropower operation with extremely low input bias currents suitable for high source impedance applications
• Unity gain stable design with internal frequency compensation eliminating the need for external nulling resistors
• Output short circuit protection and robust performance in temperature-extreme environments

Applications

• Voltage follower and buffer circuits
• Photodiode amplifiers and picoammeters
• High-performance portable instruments
• Active filters and sample/hold amplifiers
• Sensor and transducer signal conditioning

Procurement Notes

Verify the specific suffix 'SBL' corresponds to the 14-pin SOIC package and the commercial temperature range (0°C to +70°C). Confirm RoHS compliance status as the datasheet indicates 'L' denotes lead-free. Ensure the ordering code matches the exact quad configuration required for your schematic. Cross-reference pinout compatibility with LM324 types if replacing legacy designs.

Selection Notes

Select this component when low power consumption and rail-to-rail swing are critical within a 2V to 10V supply range. The 200kHz bandwidth and 0.17V/µs slew rate suit moderate-speed analog processing. Consider the 14-pin SOIC footprint for surface mount assembly. Verify that the 0.1pA input bias current meets the leakage requirements of your specific sensor interface.

Part Context

The ALD4706 series includes variants like ALD4706ASBL and ALD4706BSBL, differentiated primarily by input offset voltage specifications. The SBL suffix identifies the small outline plastic package variant. This family utilizes ACMOS silicon gate technology to achieve high voltage gain and low power dissipation compared to standard bipolar op-amps.

Replacement Considerations

The datasheet notes compatibility with industry standard pin configurations of LM324 types and ICL7641 types. Verify pinout alignment before substitution. Check if the lower bandwidth of the ALD4706 meets the speed requirements of the original design.