AD9432BSQ-80

Analog To Digital Converters (ADC) Overview

The AD9432BSQ-80 is a 12-bit monolithic sampling analog-to-digital converter (ADC) fabricated on an advanced BiCMOS process. It operates at conversion rates up to 105 MSPS with a 500 MHz analog bandwidth and 2.0 V p-p differential input range. The device integrates an on-chip track-and-hold circuit, input buffer, and voltage reference, requiring only a single 5.0 V analog supply and a 3.3 V digital supply. Digital outputs are TTL/CMOS compatible in two's complement format. It is housed in a 52-lead LQFP or TQFP_EP package and specified for industrial temperatures from −40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates on-chip track-and-hold, input buffer, and voltage reference to minimize external component requirements.
• Supports both differential and single-ended encode clock inputs with TTL/CMOS compatibility.
• Features a dedicated out-of-range output pin that signals when data reaches positive or negative full scale.
• Provides latched digital outputs with a fixed 10-cycle pipeline latency.

Analog To Digital Converters (ADC) Applications

• Communications base stations and zero-IF subsystems
• Wireless local loop (WLL) systems
• Local multipoint distribution service (LMDS)
• HDTV broadcast cameras and film scanners

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific package variant required, as the AD9432 family includes both LQFP and TQFP_EP options. Confirm that the design utilizes the internal 2.5 V reference by connecting Pin 45 to Pin 46, or verify external reference specifications if adjusting the input range. Ensure the encode clock source meets the minimum pulse width requirements to maintain rated dynamic performance.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high-speed 12-bit conversion with integrated signal conditioning. The BSQ suffix indicates a specific package and temperature grade within the AD9432 family. Verify that the system clock jitter remains below 0.25 ps rms to achieve the specified SNR. Consider the 10-cycle latency when designing real-time control loops or data processing pipelines.

Analog To Digital Converters (ADC) Part Context

The AD9432 series consists of 12-bit, high-speed ADCs optimized for ease of use and dynamic performance. The AD9432BSQ-80 is part of this lineup, offering operation up to 105 MSPS. It shares architectural similarities with other members like the AD9432BSQ-105 but is characterized for specific performance levels across the industrial temperature range. The device simplifies design by eliminating the need for external drivers or references in many configurations.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: AD9432BSQ-105.