ADS8382IRHPR

Analog To Digital Converters (ADC) Overview

The ADS8382IRHPR 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 onboard conversion clock. The device supports high-speed CMOS serial interfaces with clock speeds up to 40 MHz. Key performance metrics include ±1.25 LSB typical integral nonlinearity (INL), 96 dB SINAD, and 120 dB spurious-free dynamic range at a 1 kHz input frequency. Power consumption is 115 mW at full throughput, reducing to 15 mW in nap mode and 10 μW during power down. It operates over the industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 18-bit resolution with 600-kHz throughput rate
• Fully differential pseudo-bipolar input range up to ±4.2 V
• Integrated 4.096-V reference and onboard conversion clock
• High-speed serial interface supporting SCLK up to 40 MHz

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific linearity grade required for the application. The 'I' suffix denotes the standard version with 17-bit no-missing-code guarantee and ±2/2.5 LSB INL/DNL. The 'IB' variant offers enhanced 18-bit accuracy with ±1/1.5 LSB specifications. Confirm that the IRHPR ordering suffix corresponds to the 1000-unit tape and reel packaging format.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8382IRHPR when 18-bit precision and high dynamic range are critical. Ensure the system can accommodate the pseudo-bipolar input common-mode voltage centered around Vref/2. Verify that the digital supply (+VBD) meets the 2.7 V to 5.25 V requirement if interfacing with lower voltage logic. Consider the thermal impedance of the 6x6 QFN package for heat dissipation at maximum sample rates.

Analog To Digital Converters (ADC) Part Context

The ADS8382 belongs to Texas Instruments' High-Speed SAR Converter Family. It complements other devices such as the ADS8380 (18-bit pseudo-differential) and ADS8381 (16-bit pseudo-differential). Unlike the ADS8383 or ADS8381 which may offer different resolutions or input types, the ADS8382 is specifically optimized for fully differential applications requiring high linearity and low noise.

Analog To Digital Converters (ADC) Replacement Considerations

For pin-compatible alternatives within the same family, consider the ADS8380 for pseudo-differential inputs or the ADS8381 for 16-bit resolution requirements. If higher speed is needed, explore the ADS84xx series, though pinouts and interfaces may differ.