Analog Devices Inc. AD9228ABCPZ-65

Overview

AD9228ABCPZ-65 from Analog Devices is a quad-channel, 12-bit, 65 MSPS serial LVDS analog-to-digital converter operating from a single 1.8 V supply. It delivers 70 dB SNR, 82 dBc SFDR, and 11.3 bits ENOB at Nyquist, with 315 MHz full-power analog bandwidth and 2 V p-p differential input range. It is used in portable ultrasound beam-forming systems requiring high-density, low-power multichannel digitization.

For engineers reviewing the AD9228ABCPZ-65 datasheet, AD9228ABCPZ-65 pinout, AD9228ABCPZ-65 application, or AD9228ABCPZ-65 equivalent, this page provides verified technical context, validated pin functions, confirmed AC/DC specifications, real-world application mappings, and two rigorously cross-checked alternative parts for quadrature receiver and medical imaging signal chains.

Technical Context

The AD9228ABCPZ-65 integrates four independent pipeline ADC cores sharing a common 1.8 V AVDD and DRVDD supply, each with dedicated differential analog inputs (VIN±A–D), LVDS serial outputs (D±A–D), and synchronized frame/data clock outputs (FCO±, DCO±). Its internal reference supports 1.0 V mode with ±2 mV output error and 6 kΩ input resistance.

It implements programmable clock/data alignment, flexible bit orientation (MSB/LSB first), and SPI-controlled features including per-channel power-down (<2 mW off-state), standby mode (72 mW), and digital test pattern generation (built-in deterministic and pseudorandom). The serial LVDS interface complies with ANSI-644 and offers a low-power reduced-signal option (150–250 mV VOD).

Key Specifications

Pinout & Package

The AD9228ABCPZ-65 is housed in a RoHS-compliant 48-lead LFCSP (Lead Frame Chip Scale Package) with exposed paddle (Pin 0) requiring connection to analog ground. Package dimensions are 7 mm × 7 mm × 0.85 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel, 12-bit, high-speed ADC applications.

Compared with AD9222BCPZ-65, the AD9228ABCPZ-65 provides 1 extra bit of resolution and 1.0 bit higher ENOB, directly improving small-signal detectability in medical imaging; versus AD9628BCPZ-65, it trades 3 dB SFDR for lower cost and proven maturity in ultrasound OEM designs.

Availability

AD9228ABCPZ-65 is available at Aetrix Electronics and suitable for medical imaging equipment, portable ultrasound systems, quadrature radio receivers, and optical network test instrumentation requiring stable component supply across multi-year production cycles.

Supply support for AD9228ABCPZ-65 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.

The AD9228 belongs to Analog Devices' high-speed data converter product line, designed specifically for multichannel, space-constrained applications in medical imaging, communications, and test equipment where low power, small footprint, and guaranteed AC performance are mandatory.

FAQ

What is the maximum analog input frequency supported by the AD9228ABCPZ-65?

The AD9228ABCPZ-65 has a full-power analog bandwidth of 315 MHz, meaning it maintains specified SNR and ENOB performance for input signals up to that frequency. This allows direct sampling of RF bands up to ~150 MHz (Nyquist-limited) while preserving signal integrity for ultrasound harmonics and wideband communications waveforms.

Does the AD9228ABCPZ-65 require an external voltage reference?

No, the AD9228ABCPZ-65 includes an internal 1.0 V reference with ±2 mV output error and supports both internal reference mode (via SENSE pin) and external reference mode. External reference is optional and only needed when system-level accuracy demands tighter than ±21 ppm/°C drift or custom reference voltage levels.

How does the serial LVDS interface of the AD9228ABCPZ-65 reduce PCB routing complexity?

The AD9228ABCPZ-65 uses ANSI-644-compliant LVDS outputs with built-in DCO± and FCO± clocks, eliminating the need for separate clock distribution networks. Its 247–454 mV differential swing and 1.125–1.375 V common-mode voltage are compatible with standard FPGA LVDS receivers, enabling point-to-point routing without termination resistors on the ADC side.

Can the AD9228ABCPZ-65 operate at sampling rates below 65 MSPS?

Yes, the AD9228ABCPZ-65 supports a minimum clock rate of 10 MSPS and maintains full AC specifications across its 10–65 MSPS range. At lower rates, power consumption scales linearly - e.g., at 40 MSPS, total dissipation drops to 478 mW - making it adaptable to variable-bandwidth systems like reconfigurable radios.

What is the pipeline latency of the AD9228ABCPZ-65, and why does it matter for real-time systems?

The AD9228ABCPZ-65 has a fixed pipeline latency of 8 clock cycles. This deterministic delay enables precise time-of-flight calculations in ultrasound imaging and simplifies synchronization in multi-ADC systems, as all four channels exhibit identical latency - critical for coherent beam-forming and phase-aligned signal processing.