AD9644BCPZRL7-155

Analog To Digital Converters (ADC) Overview

The AD9644BCPZRL7-155 is a dual-channel, 14-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 155 MSPS. It features JESD204A coded serial digital outputs with CML drivers and operates from a single 1.8 V supply. The device utilizes a multistage differential pipelined architecture with integrated output error correction logic. Key specifications include an SNR of 71.7 dBFS at 70 MHz input frequency and 155 MSPS sampling rate, and an SFDR of 92 dBc under the same conditions. Power consumption is 567 mW at full speed. The component is housed in a 48-lead LFCSP package and supports an industrial temperature range of −40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• JESD204A coded serial digital outputs
• Multistage differential pipelined architecture
• Integrated output error correction logic
• Single 1.8 V power supply operation

Analog To Digital Converters (ADC) Applications

• Communications
• Diversity radio systems
• Multimode digital receivers (3G and 4G)
• I/Q demodulation systems
• Smart antenna systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix RL7 against official Analog Devices documentation to confirm reel packaging details. Ensure the selected variant matches the required 155 MSPS performance grade. Cross-reference the part number with the manufacturer's current datasheet revision D to validate all electrical parameters before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high-performance dual-channel ADCs with low power consumption. Verify that the system clock requirements align with the integer 1-to-8 input clock divider capabilities. Confirm compatibility with the JESD204A interface standard for the receiving device. Evaluate thermal management needs given the 567 mW power dissipation at maximum sampling rates.

Analog To Digital Converters (ADC) Part Context

The AD9644 belongs to a family of 14-bit, 1.8 V dual serial output ADCs designed for communications applications. Variants within the series offer different sampling speeds, such as 80 MSPS or 155 MSPS. The device integrates an on-chip PLL to multiply the sampling clock for the JESD204A data rate. It is optimized for versatility, small size, and cost-effectiveness in demanding signal processing environments.

Analog To Digital Converters (ADC) Replacement Considerations

AD9644BCPZ-155

Analog To Digital Converters (ADC) FAQ

What is the maximum data rate per channel for the AD9644?

The maximum data rate per channel is 3.1 Gbps when using a dedicated data link per ADC.

Does the AD9644 support IF sampling?

Yes, the device supports IF sampling frequencies up to 250 MHz.

How is the analog input common-mode level set?

The analog input common-mode level is set by the internal VCMA and VCMB pins, which provide a bias output for the external circuit.