ADS8380IRHPR

Analog To Digital Converters (ADC) Overview

The ADS8380IRHPR is a high-performance, 18-bit, 600-kHz sampling analog-to-digital converter (ADC) featuring a pseudo-differential input and an onboard 4.096-V reference. It utilizes a capacitor-based successive approximation register (SAR) architecture with inherent sample-and-hold capabilities. The device supports a high-speed CMOS serial interface with clock speeds up to 40 MHz. Key electrical specifications include a typical SINAD of 91 dB and SFDR of 119 dB at a 1 kHz input frequency. Power consumption is rated at 115 mW during operation, with reduced power modes available.

Analog To Digital Converters (ADC) Feature Summary

• 18-bit resolution with 600-kHz throughput rate
• Integrated 4.096-V internal voltage reference
• Pseudo-differential analog input range of 0 V to 4.2 V
• High-speed serial interface supporting up to 40 MHz SCLK

Analog To Digital Converters (ADC) Applications

• Medical instruments
• Optical networking systems
• Transducer interfaces
• Magnetometer signal conditioning
• High-accuracy data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific linearity grade upon procurement. The 'I' suffix indicates the industrial temperature range (-40°C to +85°C). The 'R' in the ordering suffix denotes tape and reel packaging containing 1000 units. Confirm that the required INL specification matches the 'ADS8380I' variant (±2 LSB typ) rather than the higher precision 'ADS8380IB' variant (±4 LSB max), as performance characteristics differ between these grades.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high resolution and moderate speed within a compact footprint. Ensure the digital supply (+VBD) is compatible with the host logic levels, as it ranges from 2.7 V to 5.25 V. Verify that the system can accommodate the 6 x 6 mm QFN package thermal requirements, given the junction-to-ambient thermal impedance of 86°C/W. Consider the internal reference stability if external buffering is not utilized.

Analog To Digital Converters (ADC) Part Context

The ADS8380 belongs to Texas Instruments' High-Speed SAR Converter Family. It is functionally related to other members such as the ADS8381 (18-bit, fully differential) and ADS8383 (18-bit, pseudo-differential). These devices share similar architectural features but vary in input configuration and pinout compatibility within the family.

Analog To Digital Converters (ADC) Replacement Considerations

For direct pin-compatible replacements with identical functionality, consider the ADS8383. For fully differential input requirements, the ADS8381 is the corresponding family member. Note that the ADS8380IB offers tighter linearity specifications but requires verification of availability and potential cost differences.