AD9484BCPZRL7-500

Analog To Digital Converters (ADC) Overview

The AD9484BCPZRL7-500 is an 8-bit, monolithic sampling analog-to-digital converter (ADC) operating at up to 500 MSPS. It features a pipelined architecture with an integrated sample-and-hold amplifier and voltage reference. The device utilizes LVDS outputs compliant with ANSI-644 levels and supports offset binary, two's complement, or Gray code formats. Powered by a single 1.8 V supply, it achieves a typical SNR of 47 dBFS at 250 MHz input frequency and maintains a full power analog bandwidth of 1 GHz. The component is housed in a 56-lead LFCSP package and operates within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated duty cycle stabilizer retimes the nonsampling edge to maintain nominal 50% internal clock duty cycle.
• On-chip voltage reference eliminates the need for external decoupling components.
• Programmable input voltage range allows flexibility between 1.18 V p-p and 1.6 V p-p via serial interface.
• LVDS output data format ensures compatibility with current FPGA technology.

Analog To Digital Converters (ADC) Applications

• Wireless and wired broadband communications
• Cable reverse path systems
• Communications test equipment
• Low cost digital oscilloscopes

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix RL7 indicates reel packaging when sourcing this component. Confirm that the BC designation corresponds to the industrial temperature grade specifications. Ensure the source documentation matches the Rev A datasheet for accurate pinout and electrical parameter alignment during procurement validation.

Analog To Digital Converters (ADC) Selection Notes

Select this ADC for applications requiring high dynamic performance at wideband frequencies with simplified power management. The single 1.8 V supply requirement reduces system complexity compared to multi-supply alternatives. Consider the 8-bit resolution limit when evaluating signal-to-noise requirements against higher-resolution pipeline converters.

Analog To Digital Converters (ADC) Part Context

This component belongs to the Analog Devices AD9484 series of high-speed analog-to-digital converters. The series is designed for ease of use and low power dissipation in broadband carrier and wideband systems. The AD9484BCPZRL7-500 variant specifically denotes the industrial temperature range version packaged in a tape and reel format for automated assembly.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements include other variants within the AD9484 family such as the AD9484BCPZ-500 for tray packaging. Evaluate alternative high-speed ADCs from the manufacturer if different resolution or interface standards are required for the target application design.

Analog To Digital Converters (ADC) FAQ

How does the AD9484 handle clock duty cycle variations?

The device includes an on-chip duty cycle stabilizer that uses a delay-locked loop to retime the nonsampling edge, providing an internal clock signal with a nominal 50% duty cycle regardless of input variations.

What output coding formats are supported?

The AD9484 supports selectable output data formats including offset binary, two's complement, and Gray code, which can be configured via the serial port interface.

Is an external voltage reference required?

No, the AD9484 includes an on-chip voltage reference that requires no external decoupling, simplifying the system design and reducing component count.