AD9444BSVZ-80

Analog To Digital Converters (ADC) Overview

The AD9444BSVZ-80 is a 14-bit, monolithic sampling analog-to-digital converter (ADC) operating at an 80 MSPS guaranteed sampling rate. It features an on-chip track-and-hold circuit and requires 3.3 V and 5.0 V power supplies with a low voltage differential input clock. The device provides LVDS-compatible or CMOS-compatible data outputs and includes an output clock for simplified data capture. Packaged in a 100-lead TQFP/EP, it operates within the industrial temperature range of −40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-performance architecture optimized for multicarrier, multimode receivers with outstanding SFDR capabilities.
• Integrated on-chip reference and track-and-hold circuitry eliminates the need for external driver components.
• Configurable digital outputs support both LVDS and CMOS logic modes with selectable data formats.
• Clock Duty Cycle Stabilizer (DCS) maintains performance across a wide range of clock pulse widths.

Analog To Digital Converters (ADC) Applications

• Multicarrier, multimode cellular receivers
• Antenna array positioning systems
• Power amplifier linearization
• Broadband wireless infrastructure
• Radar and infrared imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix '80' against the manufacturer's current ordering guide to confirm the guaranteed sampling rate specification. Confirm that the package type matches the required 100-lead TQFP/EP configuration. Ensure the component meets the industrial temperature range requirements for the intended application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high linearity and spurious-free dynamic range are critical for multicarrier applications. Consider the dual supply requirement of 3.3 V and 5.0 V during power budgeting. Evaluate the interface compatibility between the ADC's LVDS/CMOS outputs and the downstream processing logic to determine the necessary termination and biasing components.

Analog To Digital Converters (ADC) Part Context

The AD9444 series represents Analog Devices' solution for high-speed, high-resolution data acquisition in base station infrastructure. The BS designation typically indicates a specific speed bin or performance grade within the product family. This model targets demanding RF front-end digitization tasks where signal integrity and low noise are paramount.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements must match the 14-bit resolution, 80 MSPS speed, and 100-lead TQFP/EP package. Verify pinout compatibility if substituting with other members of the AD9444 family or newer generations from Analog Devices.

Analog To Digital Converters (ADC) FAQ

What is the pipeline delay latency of the AD9444?

The AD9444 has a fixed pipeline delay latency of 12 clock cycles.

How is the internal voltage reference configured?

The internal 1.0 V reference is enabled by connecting the SENSE pin to AGND. An external reference can be used by connecting SENSE to AVDD2.

What is the function of the DCS MODE pin?

The DCS MODE pin controls the Clock Duty Cycle Stabilizer. Connecting it to AGND enables the DCS feature, which is recommended for maintaining performance over varying clock pulse widths.