ADS8382IRHPT

Analog To Digital Converters (ADC) Overview

The ADS8382IRHPT is an 18-bit, 600-kHz sampling analog-to-digital converter (ADC) featuring a fully differential, pseudo-bipolar input architecture. It integrates a 4.096-V internal reference and conversion clock within a 28-lead 6x6 QFN package. The device operates with an analog supply voltage (+VA) ranging from 4.75 V to 5.25 V and a digital supply (+VBD) from 2.7 V to 5.25 V. Key performance metrics include a typical Signal-to-Noise and Distortion Ratio (SINAD) of 96 dB, a Spurious Free Dynamic Range (SFDR) of 120 dB at a 1 kHz input frequency, and an Integral Nonlinearity (INL) of ±1.25 LSB typical. Power consumption is 115 mW at full throughput, reducing to 15 mW in Nap mode.

Analog To Digital Converters (ADC) Feature Summary

• 18-bit resolution with 600-kSPS throughput rate using a high-speed CMOS serial interface supporting up to 40 MHz SCLK.
• Fully differential pseudo-bipolar analog input range accommodating voltages up to ±4.2 V.
• Integrated 4.096-V internal voltage reference with onboard buffer capability.
• Low power consumption of 115 mW at 600 kSPS, with dedicated Nap mode (15 mW) and Power Down mode (10 μW).
• Industrial temperature range characterization from -40°C to +85°C.

Analog To Digital Converters (ADC) Applications

• Medical instruments requiring high accuracy data acquisition.
• Optical networking systems utilizing transducer interfaces.
• Magnetometer signal conditioning circuits.
• High-accuracy industrial data acquisition systems.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'RHPT' corresponds to the 250-unit tape and reel packaging configuration as defined in the manufacturer's ordering information. Confirm that the 'I' designation aligns with the required industrial temperature range specifications (-40°C to +85°C) for the target application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 18-bit resolution and 600-kSPS sample rate are required alongside a fully differential input stage. Ensure the system design accommodates the specified analog supply voltage of 5 V and digital supply options between 2.7 V and 5.25 V. Consider the integrated reference if external precision references are undesirable, noting the 4.096-V nominal output.

Analog To Digital Converters (ADC) Part Context

The ADS8382 belongs to Texas Instruments' High-Speed SAR Converter Family, positioned alongside variants such as the ADS8380, ADS8381, and ADS8383. These devices share similar architectural foundations but vary in resolution, input type, and interface speed. The ADS8382 specifically addresses applications needing 18-bit precision with differential inputs and moderate throughput speeds.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8382IBRHPT serves as a higher linearity variant within the same package and pinout, offering improved INL specifications. Designers should verify compatibility regarding linearity requirements and potential cost differences when substituting between the 'I' and 'IB' grades.