AD9609BCPZ-80

Analog To Digital Converters (ADC) Overview

The AD9609BCPZ-80 is a monolithic, single-channel 10-bit analog-to-digital converter (ADC) from Analog Devices Inc. It operates at a maximum sampling rate of 80 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 9.7 MHz input and 61.0 dBFS at 200 MHz input. Spurious-Free Dynamic Range (SFDR) reaches 75 dBc at 9.7 MHz and 73 dBc at 200 MHz. Power consumption is 76 mW at 80 MSPS with a 1.8 V digital supply. 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.
• Flexible digital output options including offset binary, gray code, or twos complement formats with support for both 1.8 V and 3.3 V CMOS logic levels.

Analog To Digital Converters (ADC) Applications

• Diversity radio systems and multimode digital receivers
• Battery-powered instruments such as handheld scope meters
• Portable medical imaging and ultrasound equipment
• Radar and LIDAR systems
• PET/SPECT imaging applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific speed grade suffix matches the required sampling rate, as the AD9609 family includes variants for 20, 40, 65, and 80 MSPS. Confirm that the LFCSP package thermal requirements are met by the PCB design, specifically ensuring the exposed paddle is soldered to the analog ground plane for proper functionality and heat dissipation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, low-power 10-bit ADC is required for frequencies up to 200 MHz. Ensure the system can accommodate the 1.8 V analog supply and separate digital supply. Consider pin compatibility with the AD9629 and AD9649 if future migration to higher resolution converters within the same package is anticipated.

Analog To Digital Converters (ADC) Part Context

The AD9609BCPZ-80 belongs to the AD9609 family of 10-bit, 1.8 V analog-to-digital converters. This family shares a common architectural core and physical footprint but is differentiated by sampling speed grades ranging from 20 MSPS to 80 MSPS. The device is part of a broader portfolio that includes pin-compatible 12-bit and 14-bit counterparts, facilitating design scalability.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9609BCPZ-80 is pin-compatible with the AD9629 (12-bit) and AD9649 (14-bit) in the same 32-lead LFCSP package. Designers may consider these alternatives if higher resolution is needed without changing the board layout, provided the system timing and power budgets accommodate the respective speed grades of those devices.

Analog To Digital Converters (ADC) FAQ

What is the maximum input frequency supported by the AD9609BCPZ-80?

The AD9609BCPZ-80 supports an analog input bandwidth of 700 MHz, allowing it to process input signals up to 200 MHz effectively while maintaining specified SNR and SFDR performance.

How does the AD9609 handle clock duty cycle variations?

The device includes an optional Duty Cycle Stabilizer (DCS) that compensates for wide variations in the clock duty cycle, helping to maintain excellent overall ADC performance despite input clock imperfections.

Is the AD9609BCPZ-80 guaranteed to have no missing codes?

Yes, the datasheet specifies that the AD9609 guarantees no missing codes over the full operating temperature range (-40°C to +85°C) due to its multistage differential pipeline architecture with output error correction logic.