ADS8401IBPFBRG4

Analog To Digital Converters (ADC) Overview

The ADS8401IBPFBRG4 is a 16-bit, 1.25 MSPS sampling analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a unipolar single-ended input range of 0 V to Vref and includes an onboard 4.096-V reference with a buffer. The device utilizes a capacitor-based successive approximation register (SAR) architecture with inherent sample-and-hold functionality. It offers zero latency conversion and supports both 8-bit and 16-bit parallel data bus transfers. The component is characterized for operation over the industrial temperature range of –40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 1.25 MHz throughput rate
• Integrated 4.096-V internal voltage reference and buffer
• Unipolar single-ended analog input range (0 V to Vref)
• High-speed parallel interface supporting 8-bit or 16-bit data reads

Analog To Digital Converters (ADC) Applications

• DWDM systems
• Instrumentation
• High-speed, high-resolution data acquisition systems
• Transducer interfaces
• Medical instruments
• Communication equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific ordering suffix 'RG4' corresponds to the tape and reel packaging configuration as defined in the manufacturer's documentation. Confirm RoHS compliance status and moisture sensitivity level requirements prior to handling. Ensure the supply chain source provides valid traceability for this Texas Instruments part number.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8401IB variant for guaranteed 16-bit no missing codes performance, compared to the ADS8401I which guarantees 15 bits. This device requires a 5-V analog supply (+VA) and a digital supply (+VBD) between 3 V and 5 V. Designers must account for the 150 ns acquisition time and ensure the analog source impedance can charge the 25 pF input capacitance within this window.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADS8401 family of micro power sampling ADCs. The 'I' suffix indicates the industrial temperature grade (-40°C to +85°C), while 'B' denotes the higher precision linearity class. The 'PFB' package designator identifies the 48-lead Thin Quad Flatpack (TQFP). The 'BR' suffix typically indicates tape and reel packaging, consistent with the standard ADS8401IBPFBR ordering option.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8401IBPFBTG4 is a confirmed public substitute offering identical electrical specifications and pinout compatibility. Both parts share the same 48-pin TQFP package and industrial temperature rating.