Analog Devices Inc. AD9266BCPZ-80

Overview

AD9266BCPZ-80 from Analog Devices is a 16-bit, 80 MSPS analog-to-digital converter operating from a single 1.8 V analog supply with differential 700 MHz input bandwidth, 77.6 dBFS SNR at 9.7 MHz, and 93 dBc SFDR at 9.7 MHz. It delivers high dynamic performance for RF sampling in communications receivers and portable medical ultrasound systems.

For engineers reviewing the AD9266BCPZ-80 datasheet, AD9266BCPZ-80 pinout, AD9266BCPZ-80 application, or AD9266BCPZ-80 equivalent, key selection considerations include its 32-lead LFCSP package, programmable clock divider (1-to-8), interleaved CMOS output interface, and support for offset binary/Gray/twos complement data formats.

Technical Context

The AD9266BCPZ-80 employs a multistage differential pipeline architecture with output error correction logic to guarantee 16-bit accuracy and no missing codes across −40°C to +85°C. Its sample-and-hold circuit maintains 71.1 dBFS SNR up to 200 MHz input frequency while consuming only 113 mW at full rate.

Digital features include a serial port interface (SPI) for configuring clock/data alignment, duty cycle stabilizer enablement, voltage reference modes, and built-in deterministic/pseudorandom test pattern generation. The DCO output supports programmable timing alignment with external logic at 1.8 V or 3.3 V CMOS levels.

Key Specifications

Pinout & Package

The AD9266BCPZ-80 is housed in a 32-lead, 5 mm × 5 mm RoHS-compliant LFCSP with exposed paddle (EPAD) that must be soldered to AGND for functionality, thermal dissipation, and noise control.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed ADC applications.

Compared with AD9266BCPZ-80, AD9649BCPZ-80 trades 2 bits of resolution for lower power (85 mW) and cost, while ADS58C28IRGCT provides double the channel count at lower ENOB-making each alternative suitable only when specific system-level trade-offs (resolution vs. throughput vs. cost) are prioritized.

Availability

AD9266BCPZ-80 is available at Aetrix Electronics and suitable for communications infrastructure, portable medical imaging, and radar signal acquisition requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for AD9266BCPZ-80 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, communications, and healthcare markets since 1965.

The AD9266 product line delivers high-resolution, low-power ADCs for direct RF sampling in battery-constrained and thermally sensitive applications, emphasizing SNR/SFDR consistency across wide input frequencies and sample rates.

FAQ

What is the maximum analog input frequency supported by the AD9266BCPZ-80 while maintaining specified SNR?

The AD9266BCPZ-80 maintains 71.1 dBFS SNR up to 200 MHz input frequency under typical conditions (AVDD = 1.8 V, 2 V p-p differential input, 1.0 V reference). At 210 MHz, SNR degrades to 70 dBFS per Figure 8 in the Rev. B datasheet. This 700 MHz analog input bandwidth enables sampling in the third Nyquist zone for undersampling architectures.

Does the AD9266BCPZ-80 require an external voltage reference?

No, the AD9266BCPZ-80 includes an on-chip 1.0 V voltage reference with ±12 mV tolerance and 2 ppm/°C drift, eliminating the need for an external reference in most applications. VREF can also accept an external 1.0 V source via the SENSE pin, but the internal reference is factory-trimmed and fully functional out-of-box.

How does the duty cycle stabilizer (DCS) affect power consumption and timing jitter in the AD9266BCPZ-80?

Enabling the DCS adds ~5 mW to total power consumption but reduces aperture uncertainty (jitter) from 0.1 ps rms to <0.15 ps rms even with 30%–70% clock duty cycles. This preserves SFDR >90 dBc at 9.7 MHz input when using non-50% clocks, such as those from integer-N PLLs without post-divider buffering.

What are the valid logic levels for the digital outputs of the AD9266BCPZ-80 when DRVDD = 3.3 V?

When DRVDD = 3.3 V, the AD9266BCPZ-80 digital outputs meet CMOS specifications: VOH ≥ 3.25 V at IOH = 0.5 mA and VOL ≤ 0.2 V at IOL = 1.6 mA. These levels are compatible with 3.3 V FPGA I/O banks and ASIC interfaces without level-shifting, supporting direct connection to Xilinx Artix-7 or Intel Cyclone V inputs.

Can the AD9266BCPZ-80 operate with a single-ended clock input?

Yes, the AD9266BCPZ-80 accepts single-ended clocks on CLK+ with CLK− AC-coupled to 0.9 V (internal common-mode bias), per Table 3 and Figure 20 in the datasheet. Performance remains within specification: SNR degrades by ≤0.3 dB and SFDR by ≤1.5 dB compared to differential drive, provided clock slew rate exceeds 0.5 V/ns.