JXA2421PPB
14-Channel Dual-Channel 3GSPS Ultra-High-Speed RF Sampling ADC | PIN-to-PIN Compatible with AD9208
Product Overview
The JXA2421PPB is an ultra-high-speed pipelined ADC with 14-bit resolution, dual channels, and 3 GSPS sampling rate per channel. It supports direct RF sampling architecture and integrates the JESD204B/C high-speed serial interface. This device enables direct digital conversion of high-frequency analog signals, significantly simplifying front-end analog circuit design, making it ideal for advanced applications such as broadband communications and radar electronic warfare.
This chip leverages advanced industry-standard CMOS technology and integrates a high-precision reference, calibration engine, and digital signal processing (DSP) module on-die to maintain superior linearity and noise performance across the full temperature and voltage range. The JESD204B/C interface supports Subclass 1 deterministic latency for multi-chip synchronization, meeting the requirements of large-scale array applications such as phased arrays.
Selecting the JXA2421PPB delivers flagship-grade ADC performance comparable to leading imported brands, along with a rapid 6-week lead time, localized FAE support, and flexible supply assurance. As a pin-for-pin compatible alternative to the AD9208, it enables quick switching without hardware redesign, helping you mitigate supply chain risks and accelerate time-to-market.
Key Parameters
| Resolution | 14 digits |
| Channel Count | 2 Channel |
| Sample rate (per channel) | 3 GSPS |
| ADC architecture | Pipeline |
| Simulate Input Bandwidth | 2.5 GHz |
| Signal-to-Noise Ratio (SNR) | 60 dB (typical) |
| Spurious-Free Dynamic Range (SFDR) | 75 dBc (typical) |
| Interface Type | JESD204B/C (Subclass 1) |
| Number of SerDes Channels | Up to 8 channels |
| SerDes line rate | Up to 12.5 Gbps |
| Operating Voltage | 1.8V / 2.5V |
| Power Consumption | <2.5W (typical) |
| Operating Temperature Range | -40℃ ~ +85℃ |
| Package Type | 144-pin BGA |
| Delivery Time | About 6 weeks |
Application Areas
Alternative to AD9208
The JXA2421PPB is a functionally compatible alternative to the imported high-speed ADC AD9208, fully matching core specifications including 14-bit resolution, dual-channel 3GSPS sampling rate, and JESD204B/C interface.
This device features a pin-to-pin compatible design, allowing customers to reuse their existing hardware based on AD9208 without PCB changes. Switching is achieved simply by verifying software configuration, significantly reducing substitution validation costs and cycle time. On-chip integrated calibration algorithms ensure low temperature drift and long-term stability, with performance matching that of leading international products.
More importantly, unlike imported components that often face lead times of 16-26 weeks with high uncertainty, JXA2421PPB offers a stable lead time of approximately 6 weeks. Combined with our professional FAE technical support team at Shenxin Microchip, your projects will no longer be held up waiting for supplies.
Interested in JXA2421PPB?
Download the datasheet for full technical specifications, or contact our team for quotes, samples, and engineering support.