ALD500ASWCL

Analog To Digital Converters (ADC) Overview

The ALD500ASWCL is a precision integrating analog processor from Advanced Linear Devices, designed for high-resolution analog-to-digital conversion. It operates on ±5V power supplies and features a dual-slope architecture to achieve up to 17-bit resolution. The device accepts differential analog inputs with a wide bipolar range of ±3.5V and provides automatic zero offset compensation. Key electrical characteristics include a typical input current of 2pA, low power dissipation of 6mW, and an operating temperature range of 0°C to +70°C. It utilizes external components such as capacitors, a resistor, and a voltage reference to implement the conversion cycle.

Analog To Digital Converters (ADC) Feature Summary

• Dual-slope integrating architecture providing inherent noise immunity and high linearity
• Differential analog input with 10^12 Ω impedance and ±3.5V range
• Automatic internal polarity detection and zero offset compensation
• Microprocessor-controlled conversion with flexible speed versus resolution trade-off

Analog To Digital Converters (ADC) Applications

• 4 1/2 digits to 5 1/2 digits plus sign measurements
• Precision sensor interface circuits
• High accuracy DC measurement functions
• Portable battery operated instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'SWC' corresponds to the 16-pin Wide Body Small Outline Package (SOIC) variant. Ensure that external design parameters, such as clock frequency and integration time, align with the datasheet recommendations for optimal performance.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high resolution and noise immunity are required for DC measurements. The ALD500ASWCL offers 17-bit resolution capability within the specified temperature range. Designers must provide external timing components, including an integrating capacitor, resistor, and reference voltage, to define the conversion speed and accuracy. Ensure the digital controller supports the required phase control logic.

Analog To Digital Converters (ADC) Part Context

The ALD500 series includes variants with different resolutions and packages. The ALD500AU/ALD500A/ALD500 family encompasses 18-bit, 17-bit, and 16-bit versions respectively. The ALD500ASWCL specifically denotes the 17-bit resolution version housed in a 16-pin Wide Body SOIC package, suitable for surface mount applications requiring industrial temperature operation.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the ALD500ASC (17-bit, SC package) or ALD500APC (17-bit, PC package). Verify pin compatibility and package dimensions before substitution. Other series members like the ALD500RA-20SEL offer SAR architecture and differ significantly in interface and performance characteristics.