ALD500AUSWCL

Analog To Digital Converters (ADC) Overview

The ALD500AUSWCL is a precision integrating analog processor manufactured by Advanced Linear Devices Inc. It utilizes a dual-slope conversion architecture to achieve high-resolution analog-to-digital conversion, supporting up to 18 bits plus sign and over-range bits. The device operates on ±5V power supplies with a typical power dissipation of 6mW. Key electrical characteristics include a differential analog input voltage range of ±3.5V, an input impedance of 10^12 Ω, and low input current of 2pA typical. It features automatic zero offset compensation and inherent noise immunity, making it suitable for high-accuracy DC measurement applications.

Analog To Digital Converters (ADC) Feature Summary

• Dual-slope integrating architecture providing resolution up to 18 bits plus sign and over-range bits
• High input impedance of 10^12 Ω with low input current of 2pA typical
• Automatic zero offset compensation and internal polarity detection
• Wide bipolar analog input voltage range of ±3.5V

Analog To Digital Converters (ADC) Applications

• 4 1/2 digits to 5 1/2 digits plus sign measurements
• Precision sensor interface
• Portable battery operated instruments
• PCMCIA devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm package type and temperature range. The datasheet indicates that industrial temperature ranges are available upon request from the factory. Ensure compatibility with the required digital controller logic levels before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select the ALD500AUSWCL variant based on the required resolution and package constraints. The 'AU' designation corresponds to 18-bit resolution capability, while 'SWC' indicates a 16-pin Wide Body Small Outline Package. Confirm that the application supports the standard commercial operating temperature range of 0°C to +70°C or contact the manufacturer for industrial range options.

Analog To Digital Converters (ADC) Part Context

The ALD500 series consists of integrating dual-slope analog processors designed for building precision analog-to-digital converters. The family includes variants such as the ALD500 (16-bit), ALD500A (17-bit), and ALD500AU (18-bit). These components function as analog processors that work in conjunction with external capacitors, resistors, and a digital controller to perform high-accuracy conversions.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the ALD500 family include the ALD500ASC (17-bit SC package) or ALD500AUSC (18-bit SC package). Verify pinout compatibility and resolution requirements when substituting.