ALD500ASCL

Analog To Digital Converters (ADC) Overview

The ALD500ASCL is a precision integrating analog processor from Advanced Linear Devices, designed for high-resolution analog-to-digital conversion. It utilizes a dual-slope architecture to achieve up to 17-bit resolution with inherent noise immunity and linearity. The device operates on ±5V power supplies and features differential analog inputs with a wide bipolar voltage range of ±3.5V. 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 requires external components such as capacitors, a resistor, and a reference voltage to function as a complete ADC system.

Analog To Digital Converters (ADC) Feature Summary

• Dual-slope integrating architecture providing high noise immunity and automatic offset compensation
• 17-bit resolution capability with low linearity error as low as 0.002%
• Differential analog input with high impedance (10^12 Ω) and wide input range (±3.5V)
• Microprocessor-controlled conversion with direct CMOS logic interface

Analog To Digital Converters (ADC) Applications

• 4 1/2 to 5 1/2 digits plus sign precision measurements
• Precision sensor interfaces and analog signal processors
• High accuracy DC measurement functions
• Portable battery-operated instruments
• Computer peripherals and PCMCIA devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'SCL' against official manufacturer documentation, as standard datasheets list 'SC' for SOIC packages. Confirm availability through authorized distributors, noting that lead times may vary. Ensure the ordering information matches the required resolution and package type specified in the design requirements.

Analog To Digital Converters (ADC) Selection Notes

Select the ALD500ASCL when 17-bit resolution is required within the commercial temperature range (0°C to +70°C). For industrial temperature ranges, contact the factory directly. Designers must provide external timing components, specifically selecting RINT between 50kΩ and 150kΩ and using low-leakage capacitors like polypropylene for CINT, CAZ, and CREF to minimize errors.

Analog To Digital Converters (ADC) Part Context

The ALD500 series includes variants with different resolutions: ALD500 (16-bit), ALD500A (17-bit), and ALD500AU (18-bit). The ALD500ASCL belongs to the ALD500A family, offering 17-bit performance. Other package options include PDIP (PC) and Wide Body SOIC (SWC). The device is part of a broader line of integrating analog processors designed for precision measurement applications.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult Advanced Linear Devices or authorized distributors for cross-reference information. Ensure any replacement maintains the dual-slope architecture and compatible pinout if physical interchangeability is required.