ADS8383IBPFBRG4

Analog To Digital Converters (ADC) Overview

The ADS8383IBPFBRG4 is an 18-bit, 500-kSPS successive approximation register (SAR) analog-to-digital converter from Texas Instruments. It features a unipolar input range and includes an onboard reference buffer. The device supports flexible digital interfaces with 8-, 16-, or 18-bit parallel bus transfer options. It operates over the industrial temperature range of -40°C to 85°C and is housed in a 48-lead TQFP package.

Analog To Digital Converters (ADC) Feature Summary

• 18-Bit Resolution: Ensures no missing codes across the full operating temperature range.
• High-Speed Performance: Achieves a throughput rate of 500 kHz with zero latency conversion architecture.
• Flexible Bus Interface: Supports 8-bit, 16-bit, and 18-bit data transfers via parallel interface.
• Low Power Consumption: Dissipates approximately 110 mW at maximum sample rates.

Analog To Digital Converters (ADC) Applications

• Medical Instruments
• Optical Networking
• Transducer Interface
• Magnetometers

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'PFB' corresponds to the 48-pin TQFP package configuration. Confirm that the 'I' designation aligns with the required -40°C to 85°C industrial temperature range for your application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-speed sampling combined with 18-bit precision is required. Ensure the system can accommodate the 5-V analog supply and 3-V or 5-V digital supply requirements. Verify that the microcontroller interface supports the necessary parallel data lines and control signals.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS8383 family of high-resolution SAR ADCs. The 'IB' variant specifically denotes the highest linearity grade within the series, while the 'I' suffix indicates industrial temperature rating. The 'RG4' suffix typically signifies lead-free and RoHS-compliant manufacturing standards.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements are not explicitly documented in the provided datasheet. Evaluate other Texas Instruments SAR ADCs with similar resolution and speed, ensuring voltage levels and package dimensions match the existing design constraints.

Analog To Digital Converters (ADC) FAQ

What is the maximum differential input voltage?

The absolute input voltage for +IN ranges from -0.2 Vref to Vref + 0.2 V, while -IN ranges from -0.2 V to 0.2 V relative to AGND.

How does the device handle different bus widths?

The BUS18/16 and BYTE pins configure the output. Setting BUS18/16 to 0 enables 18-bit mode, while setting it to 1 allows 16-bit mode where the last two bits are folded back based on the BYTE pin state.

What is the typical power dissipation?

At a 500-kHz sample rate, the power dissipation is typically 110 mW, with a maximum of 130 mW under specified conditions.