ALD1712SAL

Overview

The ALD1712SAL is a monolithic precision operational amplifier manufactured using an enhanced ACMOS silicon gate CMOS process. It is designed for +5V single supply and ±5V dual power supply systems, as well as battery-operated applications. The device features rail-to-rail input and output capabilities, allowing operation with voltages extending 300mV beyond the supply rails without phase reversal. Key electrical specifications include a unity gain bandwidth of 1.5MHz, a slew rate of 2.1V/µs, and extremely low input bias currents typically at 0.01pA. It offers high voltage gain, settling to 0.01% in 8µs, and can drive up to 4000pF capacitive loads.

Feature Summary

• Rail-to-rail input and output operation with extended common-mode range
• Extremely low input bias current suitable for high-impedance sources
• High load capacitance driving capability without external compensation
• On-chip offset voltage trimming for precision performance

Applications

• Voltage amplifier circuits
• Photodiode amplifiers
• Data acquisition systems
• Active filters
• Picoammeters

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the 8-pin Small Outline Plastic Dip (SOIC) package with lead-free (RoHS) compliant terminations. Confirm the operating temperature range matches the application requirements, as this package variant is rated for 0°C to +70°C. Ensure static control procedures are followed during handling due to ESD sensitivity.

Selection Notes

Select the ALD1712SAL when a precision CMOS op-amp is required for single-supply or dual-supply analog signal processing. Its rail-to-rail characteristics make it ideal for low-voltage portable instruments. Consider the low input bias current for sensor interfaces where leakage must be minimized. Verify that the 1.5MHz bandwidth meets the system's frequency response needs.

Part Context

This component belongs to the ALD1712 family of rail-to-rail precision operational amplifiers from Advanced Linear Devices. The family includes variants like the ALD1712A and ALD1712B, which differ primarily in input offset voltage specifications. The ALD1712SAL specifically denotes the standard version housed in an SOIC-8 package, distinct from the DIP or CERDIP options available in the series.

Replacement Considerations

Direct pin-compatible replacements should be sought among other rail-to-rail CMOS operational amplifiers with similar low input bias currents. Verify that any substitute supports the required ±2.5V to ±5V supply range and maintains unity-gain stability. Check if the alternative device offers comparable capacitive load driving capabilities.