AD9433BSVZ-125

Analog To Digital Converters (ADC) Overview

The AD9433BSVZ-125 is a 12-bit monolithic sampling analog-to-digital converter (ADC) designed for high-performance IF sampling applications. It operates at a maximum conversion rate of 125 MSPS with a 750 MHz full-power analog bandwidth. The device features an on-chip track-and-hold circuit and reference, requiring only a 5.0 V analog supply and a 2.5 V to 3.3 V digital supply. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 68 dB at 105 MSPS and a Spurious-Free Dynamic Range (SFDR) of up to 83 dBc from DC to 70 MHz. It utilizes a parallel interface and is housed in a 52-lead TQFP_EP package.

Analog To Digital Converters (ADC) Feature Summary

• Features a user-selectable on-chip proprietary circuit that optimizes spurious-free dynamic range (SFDR) versus signal-to-noise ratio performance across different input signal frequencies.
• Includes an internal clock duty cycle stabilization mechanism and an integrated track-and-hold circuit to simplify system design.
• Supports flexible data output formats, allowing the selection between twos complement or offset binary coding via a dedicated control pin.

Analog To Digital Converters (ADC) Applications

• Cellular infrastructure communication systems
• 3G single- and multicarrier receivers
• Wideband carrier frequency systems
• LMDS and wireless broadband base station units

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity by checking manufacturer markings against official documentation. Confirm the specific suffix indicates the 125 MSPS variant. Ensure proper handling procedures are followed due to moisture sensitivity classification. Validate that the 52-lead TQFP_EP package matches the intended PCB footprint before integration into production assemblies.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution and 125 MSPS sampling rate are required for wideband IF sampling. Consider the 5 V analog supply requirement and TTL/CMOS compatible outputs for logic interfacing. Evaluate the need for the SFDR optimization feature if discrete spurious content limits system dynamic range. Ensure the application supports the specified industrial temperature range of −40°C to +85°C.

Analog To Digital Converters (ADC) Part Context

The AD9433 series represents Analog Devices' solution for high-speed, mid-resolution data acquisition. This specific model extends the capabilities of the AD9432, offering increased sampling rates while maintaining pin compatibility. It is part of a broader portfolio aimed at simplifying RF front-end designs by integrating critical functions like references and timing circuits directly onto the silicon die.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9433 is pin-compatible with the AD9432. When replacing the AD9432, verify that the higher sampling rate and updated power specifications are acceptable for the existing thermal and clocking infrastructure. No external reference components are typically required for either device.