ALD1703PAL

Overview

The ALD1703PAL is a monolithic operational amplifier manufactured using Advanced Linear Devices' ACMOS silicon gate CMOS process. It features rail-to-rail input and output voltage ranges, making it suitable for +5V single supply or ±2.5V dual supply systems. The device offers a unity gain bandwidth of 1.5MHz, a slew rate of 2.1V/µs, and extremely low input bias currents with a typical value of 1pA. Designed for high source impedance applications, it includes on-chip offset voltage trimming and operates within a temperature range of 0°C to +70°C in an 8-pin PDIP package.

Feature Summary

• Rail-to-rail input and output voltage ranges allow implementation of analog serial stages without losing operating voltage margin.
• Extremely low input bias current of 1.0pA typical makes the device ideal for high source impedance applications.
• On-chip offset voltage trimming allows the device to be used without external nulling in most applications.
• Internally compensated for unity gain stability without requiring external frequency compensation components.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'PAL' corresponds to the 8-pin Plastic DIP (PDIP) package variant when sourcing. Confirm that the component meets the required operating temperature range of 0°C to +70°C for your application environment. Ensure static control procedures are followed during handling due to ESD sensitivity inherent to CMOS technology.

Selection Notes

Select this component for designs requiring rail-to-rail performance in standard 5V single-supply or ±2.5V dual-supply environments. It is appropriate for precision applications needing low input bias current and internal offset trimming. Consider the PDIP-8 package if through-hole mounting is necessary for the target PCB layout.

Part Context

The ALD1703 is part of the ALD1702 family of rail-to-rail precision operational amplifiers. These devices share identical pin configurations and electrical characteristics but may differ in factory-trimmed offset voltage specifications. The PAL suffix specifically designates the plastic DIP package version within this product line.

Replacement Considerations

Direct substitutes include other members of the ALD1702 family such as the ALD1702APAL, ALD1702ASAL, and ALD1702BPAL, which share the same pinout and core functionality.

FAQ

Does the ALD1703 require external frequency compensation?

No, the ALD1703 is internally compensated for unity gain stability and does not require external frequency compensation components.

What is the maximum load capacitance the ALD1703 can drive?

The device can typically drive up to 400pF of external load capacitance in a unity gain buffer configuration without stability problems.