Analog Devices Inc. AD9246BCPZRL7-105

Overview

AD9246BCPZRL7-105 from Analog Devices is a 14-bit, 105 MSPS analog-to-digital converter operating from a single 1.8 V analog supply with 1.8 V to 3.3 V digital output driver voltage. It features a differential input with 650 MHz bandwidth, on-chip voltage reference and sample-and-hold amplifier, and delivers 71.7 dBc SNR at 70 MHz input. It is used in IF sampling for communications receivers and ultrasound equipment.

For engineers reviewing the AD9246BCPZRL7-105 datasheet, AD9246BCPZRL7-105 pinout, AD9246BCPZRL7-105 application, or AD9246BCPZRL7-105 equivalent, key selection considerations include its 105 MSPS sampling rate, 1.8 V analog supply requirement, differential clock interface (CMOS/LVDS/LVPECL), DNL of ±0.4 LSB at 25°C, and industrial temperature range (−40°C to +85°C).

Technical Context

The AD9246BCPZRL7-105 implements a multistage differential pipeline architecture with output error correction logic to guarantee 14-bit accuracy and no missing codes across temperature. Its patented sample-and-hold amplifier supports input frequencies up to 225 MHz and flexible analog input ranges (1 V p-p to 2 V p-p) with selectable common-mode offset.

A duty cycle stabilizer (DCS) maintains performance across wide clock duty cycle variations, and a standard SPI-compatible serial port enables configuration of data format (offset binary/Gray/twos complement), DCS enable/disable, power-down mode, and reference selection. The device outputs data synchronized to an internal data clock (DCO).

Key Specifications

Pinout & Package

The AD9246BCPZRL7-105 is housed in a 48-lead LFCSP_VQ package (7 mm × 7 mm × 0.85 mm) with exposed thermal pad (Pin 0) soldered to AGND for optimal thermal performance and EMI control.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog-to-digital conversion applications.

Compared with AD9246BCPZ-105, the AD9246BCPZRL7-105 offers identical performance but adds tape-and-reel packaging for automated assembly; versus AD9233BCPZ-105, it delivers +2 bits resolution and +15 dB SFDR at only +110 mW power penalty-justifying upgrade in high-fidelity signal chains.

Availability

AD9246BCPZRL7-105 is available at Aetrix Electronics and suitable for ultrasound equipment, IF sampling in communications receivers, and battery-powered instruments requiring stable component supply and long-term manufacturing continuity.

Supply support for AD9246BCPZRL7-105 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 AD9246 product line delivers high-speed, low-power ADCs optimized for communications infrastructure, medical imaging, and portable test equipment where dynamic range, power efficiency, and small footprint are critical.

FAQ

What is the maximum analog input frequency supported by the AD9246BCPZRL7-105?

The AD9246BCPZRL7-105 supports analog input frequencies up to 225 MHz while maintaining specified SNR and SFDR performance, enabled by its 650 MHz input bandwidth and patented sample-and-hold architecture. This capability allows undersampling of IF signals in cellular and radar applications without external track-and-hold circuits.

Does the AD9246BCPZRL7-105 require external voltage reference components?

No-the AD9246BCPZRL7-105 integrates a precision 1.0 V voltage reference with ±20 mV output error over temperature. External reference components are optional only if custom reference voltages (e.g., 1.25 V) or enhanced stability beyond the internal spec are required.

How does the duty cycle stabilizer (DCS) function in the AD9246BCPZRL7-105?

The DCS in the AD9246BCPZRL7-105 dynamically adjusts internal clock path delays to compensate for input clock duty cycles ranging from 30% to 70%, preserving aperture jitter ≤0.1 ps rms and maintaining full 71.7 dBc SNR performance without requiring external clock conditioning circuitry.

Can the AD9246BCPZRL7-105 interface directly with 1.8 V FPGA I/O banks?

Yes-the AD9246BCPZRL7-105's digital output drivers are powered by DRVDD (1.8 V to 3.3 V), and when configured for 1.8 V operation, its VOH ≥1.75 V and VOL ≤0.2 V meet standard 1.8 V LVCMOS input thresholds, enabling direct connection to Xilinx Artix-7 or Intel Cyclone V FPGA banks without level shifters.

What is the pipeline latency of the AD9246BCPZRL7-105, and how does it impact system synchronization?

The AD9246BCPZRL7-105 has a fixed pipeline latency of 12 clock cycles, meaning the digital output for a given analog sample appears 12 clocks after the sampling edge. This deterministic delay enables precise time-of-flight compensation in ultrasound beamforming and coherent IF processing chains.