ALD1704SAL

Overview

The ALD1704SAL is a CMOS monolithic operational amplifier with MOSFET input, housed in an 8-pin Small Outline Plastic DIP (SOIC) package. It features rail-to-rail input and output voltage ranges, allowing operation with supply voltages as low as ±3.25V. The device offers a typical slew rate of 5.0V/µs, a unity gain bandwidth of 2.1MHz, and extremely low input bias currents of 1.0pA typical. Designed for low power applications, it dissipates approximately 30mW at ±5.0V supplies while providing symmetrical push-pull output drive capabilities.

Feature Summary

• Rail-to-rail input and output voltage ranges enable operation near supply rails
• Extremely low input bias current suitable for high source impedance applications
• Internally compensated for unity gain stability without external components
• Output short circuit protection to ground or power supply rails

Applications

• Voltage follower/buffer circuits
• Photodiode amplifiers
• Charge integrators
• Data acquisition systems
• Active filters

Procurement Notes

Verify the specific suffix 'SAL' corresponds to the standard operating temperature range of 0°C to +70°C and the 8-pin SOIC package configuration. Confirm RoHS compliance status if lead-free requirements are mandatory for the assembly process. Ensure static control procedures are followed during handling due to ESD sensitivity.

Selection Notes

Select this component when low supply voltage operation and rail-to-rail signal swing are required. It serves as a direct alternative to JFET input amplifiers where lower power consumption is critical. Consider the 1.0pA typical input bias current for high-impedance sensor interfaces. Verify that the 2.1MHz bandwidth meets the system's frequency response needs.

Part Context

This part belongs to the ALD1704 family of rail-to-rail CMOS operational amplifiers manufactured by Advanced Linear Devices. The family includes variants such as ALD1704A, ALD1704B, and ALD1704G, which differ primarily in offset voltage specifications and operating temperature ranges. The SAL suffix specifically denotes the plastic SOIC package variant within this series.

Replacement Considerations

The datasheet identifies this device as an alternative to popular JFET input operational amplifiers. No specific substitute part numbers are provided in the documentation.