Analog Devices Inc. AD7352BRUZ-500RL7

Overview

AD7352BRUZ-500RL7 from Analog Devices is a dual, 12-bit, successive approximation register (SAR) ADC with simultaneous sampling, 3 MSPS per channel throughput, differential input architecture, on-chip 2.048 V reference, and operation over −40°C to +125°C. It targets high-fidelity I/Q demodulation and motion control feedback loops requiring matched acquisition timing and low inter-channel crosstalk.

For engineers reviewing the AD7352BRUZ-500RL7 datasheet, AD7352BRUZ-500RL7 pinout, AD7352BRUZ-500RL7 application, or AD7352BRUZ-500RL7 equivalent, key selection criteria include simultaneous dual-channel sampling latency, ADC-to-ADC isolation (−100 dB), SNR (71.5 dB typ), power dissipation at 3 MSPS (26 mW), and TSSOP-16 package compatibility with high-density PCB layouts.

Technical Context

The AD7352BRUZ-500RL7 integrates two independent SAR ADCs sharing a single 2.5 V VDD supply and separate analog/digital grounds (AGND/DGND/REFGND). Each channel features a wide-bandwidth track-and-hold with 110 MHz full-power bandwidth and aperture jitter of 16 ps, enabling accurate digitization of RF and motor control signals.

Its SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface supports dual-data-line output (SDATAA/SDATAB) for true simultaneous readout or time-multiplexed access on one line. Conversion is initiated on the falling edge of CS, with no conversion latency and deterministic timing governed by SCLK frequency (up to 48 MHz).

Key Specifications

Pinout & Package

AD7352BRUZ-500RL7 is housed in a 16-lead thin shrink small outline package (TSSOP), 5.0 mm × 4.4 mm × 1.2 mm body, 0.65 mm lead pitch, with exposed pad for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7356BRUZ and AD7266BRUZ, the AD7352BRUZ-500RL7 uniquely balances 3 MSPS throughput, integrated 2.048 V reference, −100 dB channel isolation, and 125°C operation in a single TSSOP-16 device-making it optimal for thermally constrained, phase-coherent dual-channel acquisition where reference integration and timing precision are prioritized over maximum speed or minimum cost.

Availability

AD7352BRUZ-500RL7 is available at Aetrix Electronics and suitable for motor control, RF demodulation, industrial PLCs, and high-reliability data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD7352BRUZ-500RL7 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 design centers worldwide and ISO 9001-certified manufacturing.

The AD7352BRUZ-500RL7 belongs to Analog Devices' precision SAR ADC product line, engineered specifically for simultaneous dual-channel, high-speed, low-latency acquisition in industrial automation, motor control, and communications infrastructure where timing integrity and channel matching are critical.

FAQ

What is the guaranteed operating temperature range for the AD7352BRUZ-500RL7?

The AD7352BRUZ-500RL7 is rated for operation from −40°C to +125°C, meeting the Y-grade specification. This full range is fully characterized and guaranteed per the Rev. B datasheet, including all DC accuracy, dynamic performance, and timing parameters-enabling deployment in under-hood automotive motor drivers and industrial inverters without thermal derating.

Does the AD7352BRUZ-500RL7 require an external reference, or does it include an internal one?

The AD7352BRUZ-500RL7 includes a factory-trimmed 2.048 V internal reference with ±0.25% initial accuracy and 6 ppm/°C temperature coefficient. The REFA and REFB pins provide buffered access to this reference, and the part supports external reference overdrive from 2.148 V to VDD. No external reference is required unless tighter initial accuracy or custom voltage is needed.

How does the AD7352BRUZ-500RL7 achieve simultaneous sampling across both channels?

The AD7352BRUZ-500RL7 achieves true simultaneous sampling via two independent, matched track-and-hold amplifiers-one per ADC channel-both triggered by the same falling edge of the CS signal. This hardware-synchronized acquisition eliminates inter-channel skew, delivering aperture delay match of ≤40 ps and ADC-to-ADC isolation of −100 dB at 1 MHz.

What serial interface protocols is the AD7352BRUZ-500RL7 compatible with?

The AD7352BRUZ-500RL7 features a standard 4-wire SPI-compatible interface (CS, SCLK, SDATAA, SDATAB) that operates with SPI, QSPI™, MICROWIRE™, and DSP serial protocols. It supports MSB-first 14-bit frame output (2 leading zeros + 12 data bits) and accepts SCLK up to 48 MHz, ensuring seamless integration with ARM Cortex-M, TI C2000, and Xilinx Zynq platforms.

Can the AD7352BRUZ-500RL7 operate with different supply voltages for analog and digital I/O sections?

Yes-the AD7352BRUZ-500RL7 separates analog and digital supply domains: VDD (2.25–2.75 V) powers the analog core and reference, while VDRIVE (2.25–3.6 V) sets the logic level for CS, SCLK, SDATAA, and SDATAB. This allows interfacing with 1.8 V, 2.5 V, or 3.3 V host processors without level shifters, provided AGND, DGND, and REFGND are properly partitioned and tied.