ADS8422IPFBT

Analog To Digital Converters (ADC) Overview

The ADS8422IPFBT is a 16-bit, 4-MSPS analog-to-digital converter (ADC) featuring a fully differential pseudo-bipolar input architecture. It integrates an internal 4.096-V reference and operates on a single +VA supply of 4.75 V to 5.25 V with a digital bus supply (+VBD) ranging from 2.7 V to 5.25 V. The device delivers 92 dB SNR and -102 dB THD at 100 kHz input frequency. Key specifications include ±2 LSB integral nonlinearity (INL), 7 ps RMS aperture jitter, and 155 mW typical power consumption at full throughput. It utilizes a high-speed parallel interface with three-state drivers.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 4 MSPS throughput using a multi-bit SAR architecture
• Fully differential pseudo-bipolar input range of -4 V to +4 V
• Integrated 4.096-V reference with REFIN/2 output for common-mode setting
• High dynamic performance: 92 dB SNR and -102 dB THD at 100 kHz

Analog To Digital Converters (ADC) Applications

• DWDM systems
• Instrumentation
• High-speed data acquisition
• Transducer interfaces
• Medical instruments
• Spectrum analysis
• Automated test equipment (ATE)

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'BT' indicates tape and reel packaging with a quantity of 250 units. Confirm the 'I' designation corresponds to the industrial temperature range of -40°C to +85°C. Ensure compatibility with the 48-pin 9x9 TQFP package dimensions during PCB layout planning.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a zero-latency, high-speed parallel interface is required alongside integrated referencing. The pseudo-bipolar input allows direct coupling of signals swinging between negative and positive voltages without external level shifting. Consider the 155 mW power dissipation for thermal management in dense layouts.

Analog To Digital Converters (ADC) Part Context

This part belongs to the Texas Instruments ADS84xx family of high-speed SAR ADCs. It shares pin-out compatibility with the ADS8412 and ADS8402, facilitating design upgrades or replacements within existing hardware architectures that require higher resolution or speed.

Analog To Digital Converters (ADC) Replacement Considerations

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