AD9609BCPZ-20

Analog To Digital Converters (ADC) Overview

The AD9609BCPZ-20 is a monolithic, single-channel 10-bit analog-to-digital converter (ADC) from Analog Devices. It operates at a maximum sampling rate of 20 MSPS with a 1.8 V analog supply and supports 1.8 V to 3.3 V digital output supplies. The device features a differential input bandwidth of 700 MHz and a 2 V p-p differential analog input span. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 61.5 dBFS at a 9.7 MHz input frequency and a Spurious-Free Dynamic Range (SFDR) of 75 dBc under the same conditions. Power consumption is rated at 45 mW at 20 MSPS. It utilizes a multistage differential pipeline architecture with output error correction logic.

Analog To Digital Converters (ADC) Feature Summary

• Multistage differential pipeline architecture with output error correction logic for guaranteed no missing codes across the operating temperature range.
• Integrated on-chip voltage reference and high-performance sample-and-hold circuit designed for low cost and ease of use.
• Standard serial port interface (SPI) supporting programmable clock/data alignment, data formatting, power-down modes, and built-in test pattern generation.
• Separate digital output driver supply accommodating 1.8 V to 3.3 V logic families.

Analog To Digital Converters (ADC) Applications

• Diversity radio systems
• Multimode digital receivers
• Smart antenna systems
• Handheld scope meters
• Portable medical imaging

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific speed grade suffix '-20' corresponds to the 20 MSPS operational requirement during procurement. Confirm that the LFCSP package thermal requirements are met by the target PCB design, specifically regarding the exposed paddle soldering to the analog ground plane. Ensure the DRVDD supply voltage matches the receiving logic levels before finalizing the order.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 10-bit resolution and 20 MSPS sampling rate are sufficient for the application. Consider the AD9609BCPZ-20 for designs requiring low power consumption and integrated reference circuits. Verify compatibility with existing system clocks and ensure the 700 MHz input bandwidth meets signal requirements. Check pin compatibility if migrating from other ADCs in the family.

Analog To Digital Converters (ADC) Part Context

The AD9609BCPZ-20 belongs to the AD9609 family of 10-bit, 1.8 V analog-to-digital converters. This family includes variants with different maximum sampling rates, such as 40 MSPS, 65 MSPS, and 80 MSPS. All variants share the same 32-lead LFCSP package and pinout, facilitating easy migration between different speed grades within the product line while maintaining software and hardware compatibility.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9609BCPZ-40, AD9609BCPZ-65, and AD9609BCPZ-80 are pin-compatible replacements offering higher sampling rates. The AD9629 (12-bit) and AD9649 (14-bit) are also pin-compatible upgrades within the same package.