ALD1736APAL

Overview

The ALD1736APAL is a precision ultra micropower CMOS operational amplifier in an 8-PDIP package. It operates on dual supplies of ±1V to ±5V or single supply of +2V to +10V. Key electrical parameters include a typical supply current of 20 µA at 5V, unity gain bandwidth of 400 kHz, and slew rate of 0.17 V/µs. Input offset voltage is typically 0.4 mV with input bias current as low as 0.01 pA. The device features rail-to-rail input and output capabilities, high open-loop gain of 100 V/mV, and internal offset trimming.

Feature Summary

• Rail-to-rail input and output voltage ranges for maximum dynamic range
• Ultra micropower operation with typical 20 µA supply current
• Internal offset voltage trimming eliminates need for external nulling
• Robust design tolerant to over-voltage input spikes beyond supply rails

Applications

• Photodiode amplifiers
• Picoammeters
• Precision sample and hold circuits
• Biochemical probe interfaces
• Active filters

Procurement Notes

Verify the specific suffix 'PAL' corresponds to the 8-pin Plastic DIP package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status associated with the 'L' suffix. Ensure static control procedures are followed during handling due to ESD sensitivity. Check datasheet for absolute maximum ratings regarding power dissipation and operating temperature limits before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring extremely low input bias currents and high source impedance compatibility. The rail-to-rail capability makes it suitable for low-voltage battery-operated systems. Consider the 0.17 V/µs slew rate and 400 kHz bandwidth when designing signal conditioning circuits. Verify that the load requirements do not exceed the specified capacitive and resistive drive limits.

Part Context

The ALD1736 series includes variants such as ALD1736ASAL (SOIC), ALD1736PAL (PDIP), and ALD1736DA (CERDIP). The ALD1736APAL specifically denotes the PDIP package version within the commercial temperature grade. This family utilizes Advanced Linear Devices' enhanced EPAD silicon gate CMOS process for robust performance in extreme environments.

Replacement Considerations

Direct pin-compatible substitutes may include other ultra-micropower rail-to-rail op-amps from manufacturers like Analog Devices or Texas Instruments, provided they meet the specific 20 µA supply current and 0.01 pA input bias current requirements. Verify package dimensions and thermal characteristics match the existing PCB layout.