Analog Devices Inc. AD7352BRUZ-RL

Overview

AD7352BRUZ-RL from Analog Devices is a dual, 12-bit, successive approximation register (SAR) analog-to-digital converter with simultaneous sampling, 3 MSPS per channel throughput, differential input architecture, on-chip 2.048 V reference, and operation from a single 2.5 V supply. It targets high-fidelity data acquisition in motion control and I/Q demodulation systems where channel-to-channel timing coherence is critical.

For engineers reviewing the AD7352BRUZ-RL datasheet, AD7352BRUZ-RL pinout, AD7352BRUZ-RL application, or AD7352BRUZ-RL equivalent, key selection considerations include simultaneous dual-channel sampling latency, ADC-to-ADC isolation of −100 dB, ±0.4 LSB typical INL, 71.5 dB typical SNR at 1 MHz input, and TSSOP-16 package compatibility with high-density PCB layouts.

Technical Context

The AD7352BRUZ-RL integrates two independent SAR ADCs sharing a common serial interface, each with a dedicated track-and-hold amplifier supporting >110 MHz full-power bandwidth. Its conversion is initiated by the falling edge of CS, with no pipeline or conversion latency-resulting in deterministic timing for synchronized dual-channel capture.

It employs capacitive DAC-based successive approximation with charge redistribution, uses an internal 2.048 V ±0.25% reference (6 ppm/°C), and supports external reference overdrive from 2.148 V to VDD. Power management includes three modes: normal (26 mW @ 3 MSPS), partial power-down (9.5 mW), and full power-down (16 μW).

Key Specifications

Pinout & Package

AD7352BRUZ-RL is housed in a 16-lead thin shrink small outline package (TSSOP) with exposed pad (RUZ suffix), optimized for thermal performance and board space efficiency in high-density signal chain layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7352BRUZ-RL, AD7356BRUZ trades lower power for higher speed, while AD7357BRUZ trades speed and power for enhanced resolution-making AD7352BRUZ-RL the optimal balance of throughput, accuracy, and efficiency for industrial motion and communications systems.

Availability

AD7352BRUZ-RL is available at Aetrix Electronics and suitable for motion control systems, I/Q demodulation receivers, and industrial data acquisition requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AD7352BRUZ-RL 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 AD7352BRUZ-RL belongs to Analog Devices' high-speed precision SAR ADC product line, designed specifically for applications demanding simultaneous multi-channel sampling, low latency, and robust noise immunity in industrial and communications infrastructure.

FAQ

What is the maximum analog input frequency supported by the AD7352BRUZ-RL?

The AD7352BRUZ-RL supports a full-power bandwidth of 110 MHz at the −3 dB point and 77 MHz at the −0.1 dB point. This allows accurate digitization of fast transients and high-frequency baseband signals. The device achieves this using low-noise, wide-bandwidth track-and-hold amplifiers preceding each SAR core. Performance remains stable up to 110 MHz under specified conditions (VDD = 2.5 V, fSAMPLE = 3 MSPS, TA = −40°C to +125°C), as confirmed in the AD7352 Rev. B datasheet Figure 20.

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

The AD7352BRUZ-RL includes a fully integrated 2.048 V reference with ±0.25% initial accuracy at 25°C and 6 ppm/°C temperature coefficient. This internal reference is sufficient for most precision applications and eliminates the need for external components. However, the REFA and REFB pins support external reference overdrive from 2.148 V to VDD, enabling system-level reference sharing when tighter tolerance or lower drift is required. The internal reference is explicitly documented in Table 2 and Figure 9 of the AD7352 Rev. B datasheet.

How does the AD7352BRUZ-RL handle simultaneous sampling across its two channels?

The AD7352BRUZ-RL performs true simultaneous sampling using two independent track-and-hold amplifiers-one per channel-triggered identically by the falling edge of the CS signal. This architecture ensures zero inter-channel aperture delay mismatch (40 ps typical) and eliminates phase skew between captured waveforms. The conversion results appear simultaneously on SDATAA and SDATAB, preserving time alignment critical for vector measurements. This behavior is detailed in the General Description, Product Highlights, and Figure 1 of the AD7352 Rev. B datasheet.

What are the power consumption characteristics of the AD7352BRUZ-RL in normal operation?

In normal operational mode at 3 MSPS throughput and VDD = 2.5 V, the AD7352BRUZ-RL consumes 10 mA typical (15 mA max), equating to 26 mW typical power dissipation. At static conditions (SCLK inactive), it draws 6–7.5 mA. These values are measured with VDRIVE = 3.0 V and are specified in Table 2 of the AD7352 Rev. B datasheet. The part also offers partial and full power-down modes drawing 3.5–4.5 mA and 16–250 μW respectively, enabling dynamic power scaling.

Is the AD7352BRUZ-RL pin-compatible with other devices in the AD735x family?

The AD7352BRUZ-RL shares the same 16-lead TSSOP (RUZ) package and pin configuration with AD7356BRUZ and AD7357BRUZ, including identical pin functions for VINA±, VINB±, REFA/REFB, SCLK, CS, SDATAA/SDATAB, VDD, VDRIVE, AGND, DGND, and REFGND. However, electrical differences-including VDD requirements (2.5 V vs. 3.3 V), throughput, resolution, and reference behavior-mean that while PCB layout is reusable, firmware and power design must be validated per device. This compatibility is confirmed in the Pin Configuration section (Figure 2) and Ordering Guide of the AD7352 Rev. B datasheet.