ALD2722ESBL

Overview

The ALD2722ESBL is a dual monolithic rail-to-rail precision CMOS operational amplifier featuring integrated user-programmable EPAD offset voltage adjustment. It operates on a single supply of 4.0V to 10.0V or dual supplies of ±2.0V to ±5.0V. Key electrical parameters include a typical bandwidth of 1.5MHz, slew rate of 1.9V/µs, and input bias current of 0.01pA at 25°C. The device supports a maximum load capacitance of 4000pF at unity gain and offers an initial PSRR of 85dB and CMRR of 90dB. Operating temperature range for the SB package is 0°C to +70°C.

Feature Summary

• Integrates Electrically Programmable Analog Device (EPAD) technology for in-system computer-assisted trimming of input offset voltage.
• Features rail-to-rail input and output voltage ranges with tolerance to over-voltage input spikes beyond supply rails.
• Provides extremely low input bias currents and high open-loop voltage gain suitable for high source impedance applications.
• Supports application-specific and in-system programming modes to compensate for external component tolerances and environmental factors.

Applications

• Sensor interface circuits
• Transducer biasing circuits
• Capacitive and charge integration circuits
• Biochemical probe interfaces
• Precision sample and hold amplifiers

Procurement Notes

Verify the specific suffix 'ESBL' against official manufacturer documentation to confirm exact package type, temperature grade, and tape-and-reel specifications. Ensure compatibility with standard EPAD programmers for offset voltage configuration. Confirm RoHS compliance status and lead-free solderability requirements prior to procurement.

Selection Notes

Select this component when system-level calibration is required to minimize accumulated offset errors from PSRR, CMRR, and temperature drift. Suitable for low-power designs requiring single-supply operation down to 4V. Consider the 14-pin SOIC package dimensions and thermal dissipation limits of 600mW during layout planning.

Part Context

This part belongs to the ALD2722 family of dual precision CMOS operational amplifiers manufactured by Advanced Linear Devices. It shares core architecture with the ALD2722E variant but may differ in factory pre-programming ranges. The series utilizes proprietary EPAD technology to replace traditional manual trimming methods in analog signal conditioning paths.

Replacement Considerations

ALD2722ESB

FAQ

How does the EPAD feature affect power supply rejection?

After programming, error contributions to offset voltage from PSRR and CMRR are set to zero under specific power supply and common mode conditions, becoming part of the programmed input offset voltage error.

What is the maximum capacitive load supported?

The device can drive up to 4000pF of external load capacitance when configured with a gain of 5, and 400pF at unity gain.