ADS8402IBPFBT

Analog To Digital Converters (ADC) Overview

The ADS8402IBPFBT is a 16-bit, 1.25 MSPS analog-to-digital converter (ADC) featuring a unipolar differential input and an integrated 4.096-V reference. It utilizes a capacitor-based successive approximation register (SAR) architecture with inherent sample-and-hold functionality. The device operates on a 5-V analog supply (+VA) and a wide digital supply (+VBD). Key electrical parameters include a typical power dissipation of 155 mW at maximum throughput, a signal-to-noise ratio (SNR) of 90 dB, and a spurious-free dynamic range (SFDR) of 95 dB. It supports both 8-bit and 16-bit parallel data interfaces.

Analog To Digital Converters (ADC) Feature Summary

• 16-Bit Resolution: Ensures no missing codes across the operating temperature range (-40°C to +85°C).
• Integrated Reference: Includes a 4.096-V internal voltage reference with an onboard buffer.
• High-Speed Interface: Features a high-speed parallel interface supporting 8-/16-bit bus transfers.
• Low Power Consumption: Typical power dissipation is 155 mW at a 1.25 MHz sample rate.

Analog To Digital Converters (ADC) Applications

• DWDM Systems
• Instrumentation
• High-Speed Data Acquisition Systems
• Transducer Interfaces
• Medical Instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific linearity grade required for the application. The 'I' suffix denotes ±3.5 LSB integral nonlinearity (INL), while the 'B' suffix denotes ±2 LSB INL. Ensure the ordering suffix matches the desired performance tier. Confirm package designation PFB corresponds to the 48-lead TQFP form factor.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8402IBPFBT when a 16-bit resolution with guaranteed no missing codes is necessary. This variant offers tighter integral nonlinearity specifications compared to the standard I-grade devices. Ensure the system design accommodates the 48-pin TQFP package dimensions and provides adequate thermal management for 155 mW power dissipation.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADS840x family of micro-power sampling ADCs from Texas Instruments. It shares architectural similarities with models like the ADS8405 but differs in input configuration; the ADS8402 utilizes a unipolar differential input structure rather than single-ended inputs found in other family members.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.