ALD4702PBL

Overview

The ALD4702PBL is a quad precision CMOS operational amplifier featuring rail-to-rail input and output voltage ranges. It operates on single supplies from +5V to +10V or dual supplies of ±2.5V to ±5V. Key electrical parameters include a unity gain bandwidth of 1.5MHz, a slew rate of 1.9V/µs, and typical input bias current of 1.0pA. The device offers high open-loop voltage gain (up to 250V/mV at ±5V) and settles to 0.01% in 8µs. It is housed in a 14-pin Small Outline Plastic Dip (SOIC) package.

Feature Summary

• Rail-to-rail input and output voltage ranges allow operation close to supply rails.
• Extremely low input bias currents suitable for high source impedance applications.
• Internally compensated for unity gain stability without external components.
• Complementary push-pull class AB output drivers with short circuit protection.

Applications

• Voltage amplifier
• Photodiode amplifier
• Data acquisition systems
• Active filters
• Picoammeter

Procurement Notes

Verify the specific suffix 'PBL' corresponds to the lead-free (RoHS compliant) 14-pin SOIC package variant. Confirm the operating temperature range matches the required application environment, as standard versions are rated for 0°C to +70°C while ceramic DIP options extend to -55°C to +125°C. Ensure static control procedures are followed due to ESD sensitivity.

Selection Notes

Select this component when a quad op-amp with rail-to-rail performance is needed on a single 5V supply. It serves as a drop-in replacement for LM324 and ICL7641 pin configurations. Consider the ALD4702A or ALD4702B variants if tighter offset voltage specifications are required compared to the standard ALD4702.

Part Context

The ALD4702 series is manufactured using Advanced Linear Devices' enhanced ACMOS silicon gate process. It is designed for mixed digital/analog applications sharing a 5V power supply. The quad architecture provides four independent amplifiers in a compact footprint, ideal for portable instruments and sensor signal conditioning where low power and high precision are critical.

Replacement Considerations

ALD4702ASBL, ALD4702BSBL, ALD4702APBL, ALD4702BPBL, ALD4702ADB, ALD4702BDB, ALD4702DB

FAQ

What is the maximum capacitive load the ALD4702 can drive?

The device can drive up to 400pF in non-inverting unity gain mode and up to 800pF in inverting unity gain mode without stability issues.

Does the ALD4702 require external frequency compensation?

No, the ALD4702 is internally compensated for unity gain stability and does not require external frequency compensation components.