Analog Devices Inc. AD9694BCPZ-500

Overview

AD9694BCPZ-500 from Analog Devices is a quad-channel, 14-bit, 500 MSPS JESD204B Subclass 1 analog-to-digital converter with integrated digital downconverters (DDCs), 1.4 GHz analog input full-power bandwidth, −151.5 dBFS/Hz noise density at 305 MHz, and 1.66 W total power consumption. It serves as a high-performance IF-sampling front-end in multiband communications receivers.

For engineers reviewing the AD9694BCPZ-500 datasheet, AD9694BCPZ-500 pinout, AD9694BCPZ-500 application, or AD9694BCPZ-500 equivalent, key selection considerations include deterministic latency support via SYSREF±, flexible JESD204B lane configuration (up to 15 Gbps), on-chip 48-bit NCO + cascaded half-band filters, fast detect outputs (FD_A–FD_D) for AGC, and differential clock input with integer divide-by-1/2/4/8.

Technical Context

The AD9694BCPZ-500 implements four independent pipelined ADC cores, each with buffered differential inputs, internal voltage reference, and programmable input range (1.44–2.16 V p-p). Each core feeds into a dedicated DDC path containing a 48-bit numerically controlled oscillator (NCO) and up to four cascaded half-band decimation filters.

Its JESD204B Subclass 1 serializer supports deterministic latency synchronization across multiple devices using SYSREF±, SYNCINB±AB, and SYNCINB±CD pins. Clock generation includes differential LVDS/LVPECL input with on-chip buffer and integer division options (÷1, ÷2, ÷4, ÷8), enabling precise timing alignment for multichip systems.

Key Specifications

Pinout & Package

The AD9694BCPZ-500 is housed in a 72-lead, 10 mm × 10 mm, 0.5 mm pitch Pb-free LFCSP package with exposed thermal pad (EP). Pin mapping follows standard Analog Devices quad ADC layout with dedicated analog, digital, clock, and JESD204B lanes grouped by function and supply domain.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9695BCPZ-500, the AD9694BCPZ-500 delivers higher throughput at 500 MSPS but trades 2.7 dB SNR; versus ADC32RF45IRGCT, it provides true quad-channel coherence and integrated DDC at lower lane rates, simplifying FPGA interface design for multichannel receivers.

Availability

AD9694BCPZ-500 is available at Aetrix Electronics and suitable for 4G/LTE-A base station radios, AESA radar receivers, SIGINT spectrum analyzers, and software-defined radio platforms requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for AD9694BCPZ-500 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, with R&D and manufacturing operations worldwide.

The AD9694BCPZ-500 belongs to Analog Devices' high-speed data converter product line, engineered specifically for demanding communications infrastructure and defense electronics where multichannel synchronization, low latency, and integrated digital processing are essential.

FAQ

What is the maximum analog input frequency supported by the AD9694BCPZ-500?

The AD9694BCPZ-500 supports a 1.4 GHz analog input full-power bandwidth, verified per Table 1 and Figure 56 in the Rev. C datasheet. This enables direct sampling of IF signals up to 1.4 GHz without external bandpass filtering, making it suitable for LTE-A carrier aggregation and X-band radar IF stages. The specification holds across the full −40°C to +105°C junction temperature range.

Does the AD9694BCPZ-500 support deterministic latency for multichip synchronization?

Yes, the AD9694BCPZ-500 supports JESD204B Subclass 1 deterministic latency using SYSREF±, SYNCINB±AB, and SYNCINB±CD inputs. Its pipeline latency is fixed at 54 sample clock cycles, and the SYSREF setup/hold window is specified at −44.8 ps / +64.4 ps relative to CLK+, enabling sub-100 ps alignment across multiple AD9694BCPZ-500 devices in phased-array systems.

How many JESD204B lanes does the AD9694BCPZ-500 require for full-rate output?

The AD9694BCPZ-500 supports flexible lane configuration: two independent JESD204B links (AB and CD), each configurable for L = 1 or L = 2 lanes. At 500 MSPS with default settings (M = 4, F = 2, K = 32), each link uses two lanes operating at ~7.5 Gbps. Single-lane operation is possible at reduced decimation ratios, lowering FPGA SerDes resource usage.

What power supply voltages does the AD9694BCPZ-500 require?

The AD9694BCPZ-500 requires six independent supply domains: AVDD1 (0.975 V), AVDD1_SR (0.975 V), AVDD2 (1.8 V), AVDD3 (2.5 V), DVDD (0.975 V), DRVDD1 (0.975 V), DRVDD2 (1.8 V), and SPIVDD (1.8 V). Current draw ranges from 21 mA (IAVDD1_SR) to 513 mA (IAVDD1) depending on supply rail and operating mode, totaling 1.66 W at 500 MSPS.

Can the AD9694BCPZ-500 perform frequency translation without external FPGA logic?

Yes, the AD9694BCPZ-500 integrates four independent digital downconverters (DDCs), each with a 48-bit numerically controlled oscillator (NCO) and up to four cascaded half-band filters. This enables real-time frequency translation, decimation, and complex-to-real conversion entirely within the IC - eliminating the need for external FPGA resources in applications like multiband receiver channelization.