ADS8380IBRHPR

Analog To Digital Converters (ADC) Overview

The ADS8380IBRHPR is an 18-bit, 600-kHz sampling analog-to-digital converter (ADC) featuring a pseudo-differential input and an integrated serial interface. It incorporates a 4.096-V internal reference with an onboard buffer. Key electrical specifications include a typical Integral Nonlinearity (INL) of ±2 LSB and Differential Nonlinearity (DNL) of ±1 LSB. The device operates on a +VA supply of 4.75 V to 5.25 V and a digital supply (+VBD) of 2.7 V to 5.25 V. Dynamic performance at 1 kHz includes a Signal-to-Noise and Distortion Ratio (SINAD) of 91 dB and a Spurious Free Dynamic Range (SFDR) of 119 dB. It is housed in a 28-lead 6x6 QFN package.

Analog To Digital Converters (ADC) Feature Summary

• 18-bit resolution with guaranteed no missing codes over the industrial temperature range (-40°C to 85°C).
• Integrated 4.096-V voltage reference with onboard buffer amplifier.
• High-speed CMOS serial interface supporting clock speeds up to 40 MHz.
• Selectable output data formats: 2's complement or straight binary via the SB/2C pin.

Analog To Digital Converters (ADC) Applications

• Medical instruments
• Optical networking equipment
• Transducer interfaces
• Magnetometers
• High-accuracy data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix RHPR indicates a 1000-unit tape and reel packaging quantity. Confirm that the IB grade meets the required linearity specifications, specifically ±4 LSB maximum INL and ±1.5 LSB maximum DNL. Ensure the design supports the specified analog and digital supply voltage ranges for proper operation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 18-bit precision and high throughput are required. The internal reference simplifies board layout compared to external reference designs. Consider the pseudo-differential input architecture for noise rejection. Verify that the system can accommodate the 6x6 QFN package thermal requirements, as the junction temperature must remain within limits during operation.

Analog To Digital Converters (ADC) Part Context

The ADS8380 belongs to Texas Instruments' High Speed SAR Converter Family. It is part of a series that includes variants such as the ADS8381, ADS8382, and ADS8383, which offer different resolutions or input configurations. The IB designation denotes the industrial temperature grade with tighter linearity specifications compared to the standard I grade.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the ADS8381 (18-bit, fully differential), ADS8382 (16-bit, fully differential), and ADS8383 (18-bit, pseudo-differential). Note that pinouts and input architectures may differ between these variants; verify compatibility before substitution.