DS2450S

Analog To Digital Converters (ADC) Overview

The DS2450S is a 1-Wire Quad A/D Converter featuring four high-impedance analog inputs. It operates on a single 5V supply with active power consumption of 2.5 mW and idle power of 25 μW. The device supports user-programmable input ranges (2.56V or 5.12V) and resolutions from 1 to 16 bits. Communication occurs over the 1-Wire bus at up to 16.3 kbits per second, with Overdrive mode boosting speeds to 142 kbits per second. It includes a built-in multidrop controller, alarm thresholds, and open-drain digital outputs for closed-loop control.

Analog To Digital Converters (ADC) Feature Summary

• Four independent analog channels with programmable voltage ranges and resolution settings
• Integrated alarm threshold logic enabling conditional search responses when voltages exceed limits
• Dual power capability allowing operation via VCC pin or parasitic 1-Wire bus energy
• On-chip CRC generator ensures data integrity during memory access and conversion readouts

Analog To Digital Converters (ADC) Applications

• Multidrop sensor networks requiring unique device identification and addressability
• Closed-loop control systems utilizing analog inputs and digital output capabilities
• Battery-powered monitoring applications benefiting from low idle power consumption
• Industrial environments requiring robust communication over long distances via 1-Wire protocol

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape-and-reel availability. Ensure the component meets RoHS compliance requirements if applicable to your assembly process. Cross-reference the factory-lasered registration number for traceability needs. Confirm that the selected variant matches the required operating temperature range for your specific deployment environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a system requires multiple analog inputs connected to a single microprocessor port. Evaluate the need for hardware-based alarm flags versus software polling to optimize bus traffic. Consider the power source availability; use VCC for conversions if parasite power cannot sustain the strong pullup requirement. Verify that the 1-Wire master supports the necessary ROM commands for addressing and configuration.

Analog To Digital Converters (ADC) Part Context

The DS2450 belongs to the Maxim Integrated 1-Wire family of devices, designed for distributed sensing and control. It utilizes the standard Dallas Semiconductor 1-Wire protocol for communication. The device integrates a successive-approximation ADC with a multiplexer, providing a compact solution for multi-channel data acquisition in space-constrained embedded designs.

Analog To Digital Converters (ADC) Replacement Considerations

Check for direct replacements within the Analog Devices/Maxim portfolio that maintain 1-Wire compatibility. Verify pinout and register mapping if substituting with similar quad A/D converters. Ensure the alternative device supports the required Overdrive speed and alarm threshold features if these are critical to the existing system architecture.