AD9269BCPZ-40

Analog To Digital Converters (ADC) Overview

The AD9269BCPZ-40 is a dual-channel, 16-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 40 MSPS. It utilizes a multistage differential pipeline architecture with integrated output error correction logic to ensure no missing codes across the full industrial temperature range (-40°C to +85°C). The device operates from a single 1.8 V analog supply and supports digital driver supplies between 1.7 V and 3.6 V. Key specifications include a signal-to-noise ratio (SNR) of 77.6 dBFS at a 9.7 MHz input frequency and a spurious-free dynamic range (SFDR) of 93 dBc under the same conditions. It features a 700 MHz analog input bandwidth and accepts a 2 V p-p differential analog input.

Analog To Digital Converters (ADC) Feature Summary

• Integrated quadrature error correction (QEC) block for correcting DC offset, gain, and phase mismatches between channels.
• Optional duty cycle stabilizer (DCS) compensates for wide variations in clock duty cycles while maintaining performance.
• Programmable data output formatting options including offset binary, gray code, or two's complement.
• Built-in selectable digital test pattern generation supporting deterministic, pseudorandom, and user-defined patterns via SPI.

Analog To Digital Converters (ADC) Applications

• Diversity radio systems
• Multimode digital receivers
• I/Q demodulation systems
• Smart antenna systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'BCPZ' against the manufacturer's current ordering guide to confirm package type and RoHS compliance status. Ensure that the required speed grade corresponds to the '-40' designation for 40 MSPS operation. Confirm thermal requirements for the 64-lead LFCSP package are met by the target PCB design, particularly regarding the exposed paddle soldering for heat dissipation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a dual-channel 16-bit resolution is required at moderate sampling speeds up to 40 MSPS. The device is suitable for applications needing low power consumption, specifically approximately 136 mW per channel at 1.8 V DRVDD. Consider the pin compatibility with other members of the AD926x family if migration paths between different bit resolutions or sampling rates are anticipated within the system design.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD9269 family of high-speed, low-power dual ADCs manufactured by Analog Devices. The family includes variants optimized for 20 MSPS, 65 MSPS, and 80 MSPS sampling rates. All variants share the same 64-lead LFCSP footprint and functional architecture, differing primarily in their guaranteed maximum conversion rates and associated AC performance metrics such as SNR and SFDR at higher frequencies.

Analog To Digital Converters (ADC) Replacement Considerations

AD9269BCPZ-20

Analog To Digital Converters (ADC) FAQ

What is the pipeline latency of the AD9269?

The standard pipeline delay (latency) is 9 cycles. When the Quadrature Error Correction (QEC) feature is active, the latency increases to 11 cycles.

How does the device handle clock inputs?

The AD9269 accepts differential clock inputs compatible with CMOS, LVDS, or LVPECL logic families. An optional integer 1-to-6 input clock divider is available to adjust the internal conversion rate relative to the external clock frequency.

Can the digital outputs be multiplexed?

Yes, the device supports a data output multiplex option, allowing output data from both channels to be placed onto a single output bus, which can reduce pin count requirements in the receiving logic.