Analog Devices Inc. AD7352YRUZ-RL

Overview

AD7352YRUZ-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, on-chip 2.048 V reference (±0.25% max), and differential input architecture optimized for I/Q demodulation and motion control feedback loops.

For engineers reviewing the AD7352YRUZ-RL datasheet, AD7352YRUZ-RL pinout, AD7352YRUZ-RL application, or AD7352YRUZ-RL equivalent, key selection considerations include guaranteed no missing codes, ADC-to-ADC isolation of −100 dB, aperture jitter of 16 ps, 110 MHz full-power bandwidth, and TSSOP-16 package compatibility with high-density PCB layouts.

Technical Context

The AD7352YRUZ-RL integrates two independent SAR ADCs sharing a single 2.5 V VDD supply and separate track-and-hold amplifiers, each supporting fully differential inputs with common-mode range of 0.5 V to 1.9 V and ±VREF/2 input span. Conversion is initiated on the falling edge of CS, with timing governed by SCLK up to 48 MHz.

It employs capacitive DAC-based conversion with no latency, supports SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface, and offers three power modes: normal (26 mW at 3 MSPS), partial power-down (9.5 mW), and full power-down (16 μW). Reference output impedance is 1 Ω, and internal reference temperature coefficient is 6 ppm/°C.

Key Specifications

Pinout & Package

AD7352YRUZ-RL is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP) with exposed pad, optimized for thermal performance (θJA = 143°C/W) and board space efficiency in compact signal chain designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7352YRUZ-RL, AD7356BRUZ delivers 67% higher throughput at increased power cost, while AD7266BCPZ-REEL7 trades speed and integrated reference for compactness and input flexibility-making AD7352YRUZ-RL the balanced choice for thermally stable, reference-integrated dual-channel acquisition at 3 MSPS.

Availability

AD7352YRUZ-RL is available at Aetrix Electronics and suitable for motor control, communications infrastructure, and industrial data acquisition requiring stable component supply, long-term lifecycle assurance, and Y-grade temperature qualification.

Supply support for AD7352YRUZ-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, with R&D and manufacturing operations worldwide.

The AD7352YRUZ-RL belongs to Analog Devices' precision SAR ADC product line, designed specifically for demanding real-time signal acquisition in industrial automation, aerospace, and communications where simultaneous sampling, low latency, and guaranteed linearity are mandatory.

FAQ

What is the maximum sampling frequency supported by the AD7352YRUZ-RL?

The AD7352YRUZ-RL supports a maximum throughput rate of 3 MSPS per channel. This is achieved with a 48 MHz SCLK and requires 14 clock cycles to read out each 12-bit conversion result. The device maintains specified AC performance-including 71 dB SINAD and −100 dB channel isolation-at this full rate, making AD7352YRUZ-RL suitable for high-speed closed-loop control and real-time signal analysis applications.

Does the AD7352YRUZ-RL require an external reference voltage?

No, the AD7352YRUZ-RL includes an on-chip 2.048 V reference with ±0.25% accuracy at 25°C and 6 ppm/°C temperature coefficient. REFA and REFB pins can be used to buffer this reference for system-wide use or overdriven with an external reference between 2.148 V and VDD (2.5 V). Using the internal reference eliminates BOM cost and layout area, and AD7352YRUZ-RL maintains full specification compliance in either configuration.

How is simultaneous sampling implemented in the AD7352YRUZ-RL?

The AD7352YRUZ-RL achieves true simultaneous sampling via two independent track-and-hold amplifiers-one per ADC channel-that share a common CS-controlled acquisition trigger. On the falling edge of CS, both THAs freeze their inputs at precisely the same instant, then convert in parallel. Aperture delay match is specified at 40 ps, ensuring sub-nanosecond inter-channel timing alignment critical for I/Q demodulation and vector control algorithms using AD7352YRUZ-RL.

What power supply voltages does the AD7352YRUZ-RL require?

The AD7352YRUZ-RL requires two supplies: VDD = 2.5 V ±10% (2.25 V to 2.75 V) powers the analog core and reference, while VDRIVE = 2.25 V to 3.6 V sets the logic level for digital I/O (CS, SCLK, SDATAA, SDATAB). These supplies may be independently regulated-enabling interfacing with 1.8 V, 2.5 V, or 3.3 V controllers without level shifters-and AD7352YRUZ-RL specifies full performance across the entire VDRIVE range.

Is the AD7352YRUZ-RL pin-compatible with other devices in the AD735x family?

Yes, the AD7352YRUZ-RL shares identical pinout, package (TSSOP-16), and serial interface protocol with AD7356BRUZ and AD7357BRUZ. All three support the same VINA±/VINB± input structure, REFA/REFB reference pins, and dual SDATA outputs. However, AD7356 and AD7357 offer higher throughput (5 MSPS and 4.2 MSPS respectively) and differ in internal reference options and power consumption-so direct substitution requires validation of timing and thermal margins in the target application using AD7352YRUZ-RL.