Analog Devices Inc. AD9231BCPZ-80

Overview

AD9231BCPZ-80 from Analog Devices is a dual-channel, 12-bit, 80 MSPS analog-to-digital converter operating from a single 1.8 V analog supply with 700 MHz analog input bandwidth, 71.3 dBFS SNR at 9.7 MHz, and 93 dBc SFDR - deployed in I/Q demodulation systems for LTE and W-CDMA baseband receivers.

For engineers reviewing the AD9231BCPZ-80 datasheet, AD9231BCPZ-80 pinout, AD9231BCPZ-80 application, or AD9231BCPZ-80 equivalent, key selection criteria include differential clock support (LVDS/LVPECL/CMOS), programmable 1-to-8 clock divider, DCO-aligned CMOS outputs, and guaranteed no missing codes over −40°C to +85°C.

Technical Context

The AD9231BCPZ-80 implements a multistage differential pipeline architecture with output error correction logic to deliver 12-bit accuracy at full 80 MSPS sampling rate while maintaining guaranteed no missing codes across industrial temperature range. Its on-chip sample-and-hold supports input frequencies up to 200 MHz with 700 MHz small-signal bandwidth.

Dual independent channels share a common 1.8 V AVDD supply but feature separate digital output drivers (DRVDD = 1.8 V to 3.3 V), enabling flexible interfacing with FPGA or ASIC logic families. Serial port interface (SPI) configures data format (offset binary/gray/twos complement), clock alignment, power-down modes, and built-in test pattern generation.

Key Specifications

Pinout & Package

The AD9231BCPZ-80 is housed in a 64-lead, 9 mm × 9 mm RoHS-compliant LFCSP package with exposed paddle soldered to AGND for thermal and noise performance. Pin 0 (exposed paddle) is the sole ground connection and must be connected to PCB AGND plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9231BCPZ-80, AD9258BCPZ-80 offers higher resolution and SFDR in identical packaging for seamless upgrade paths, while ADS52J90IRGCT trades bit depth for JESD204B integration and lower cost - making AD9231BCPZ-80 optimal for balanced SNR, power, and interface simplicity in communications and medical imaging.

Availability

AD9231BCPZ-80 is available at Aetrix Electronics and suitable for communications infrastructure, portable medical imaging, and smart antenna radar systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AD9231BCPZ-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, with R&D and manufacturing operations worldwide.

The AD9231 product line delivers high-speed, low-power, dual-channel ADCs optimized for communications, instrumentation, and medical imaging - emphasizing signal fidelity, thermal efficiency, and ease of system integration.

FAQ

What is the maximum analog input frequency supported by the AD9231BCPZ-80?

The AD9231BCPZ-80 supports analog input frequencies up to 200 MHz while maintaining specified AC performance (e.g., 69.0 dBFS SNR). Its small-signal analog input bandwidth is 700 MHz, enabling accurate digitization of wideband IF signals without significant amplitude roll-off below 200 MHz.

Does the AD9231BCPZ-80 require an external voltage reference?

No. The AD9231BCPZ-80 integrates a precision 1.0 V voltage reference with ±12 mV tolerance and 2 mV load regulation error. External reference is optional and only needed if tighter initial accuracy or temperature drift is required beyond the internal reference's specifications.

Can the AD9231BCPZ-80 operate with a 3.3 V digital output supply?

Yes. The AD9231BCPZ-80 supports DRVDD from 1.8 V to 3.3 V, allowing direct interfacing with both 1.8 V and 3.3 V logic families. At DRVDD = 3.3 V, output high voltage is ≥3.25 V at 0.5 mA sink, ensuring robust noise margins with standard CMOS receivers.

How is channel synchronization achieved between Channel A and Channel B in the AD9231BCPZ-80?

Channel A and Channel B in the AD9231BCPZ-80 share a common differential clock (CLK+/CLK−) and internal pipeline, resulting in inherent inter-channel skew of <0.1 ns. The SYNC input provides additional alignment for multi-device synchronization, and both DCOA and DCOB outputs maintain fixed phase relationships to their respective data streams.

What is the pipeline latency of the AD9231BCPZ-80 and how does it affect system timing?

The AD9231BCPZ-80 has a fixed pipeline latency of 9 clock cycles from sample initiation to valid output data. This deterministic latency simplifies timing budgeting in closed-loop systems such as digital predistortion or real-time beamforming, where consistent group delay is essential for feedback stability.