Analog Devices Inc. AD7356YRUZ-RL

Overview

AD7356YRUZ-RL from Analog Devices is a dual, 12-bit, successive approximation register (SAR) ADC with simultaneous sampling, 5 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-speed data acquisition in motion control and I/Q demodulation systems where channel-to-channel timing alignment and low-latency conversion are critical.

For engineers reviewing the AD7356YRUZ-RL datasheet, AD7356YRUZ-RL pinout, AD7356YRUZ-RL application, or AD7356YRUZ-RL equivalent, key selection considerations include simultaneous dual-channel sampling capability, 71.5 dB typical SINAD at 1 MHz input, ±0.5 LSB INL, 110 MHz full-power bandwidth, and SPI/QSPI/MICROWIRE-compatible serial interface with dual SDATA outputs.

Technical Context

The AD7356YRUZ-RL integrates two independent SAR ADCs, each with a dedicated track-and-hold amplifier supporting >110 MHz analog input bandwidth and aperture jitter of 16 ps. Conversion is initiated on the falling edge of CS, with no latency between sampling and result availability.

It employs capacitive DAC-based conversion 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 partial and full power-down modes, enabling dynamic throughput/power scaling across industrial temperature ranges (−40°C to +125°C).

Key Specifications

Pinout & Package

AD7356YRUZ-RL is housed in a 16-lead TSSOP (Thin Shrink Small Outline Package) with 0.65 mm pitch, optimized for compact PCB layouts and thermal performance (θJA = 143°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7356YRUZ-RL, AD7357BRUZ trades 0.75 MSPS throughput for +2 bits of resolution and improved SFDR, while AD7266BCPZ-REEL7 reduces size and power at the cost of speed, simultaneous sampling assurance, and reference integration-making AD7356YRUZ-RL optimal for balanced high-speed, high-accuracy dual-channel acquisition.

Availability

AD7356YRUZ-RL is available at Aetrix Electronics and suitable for motor control systems, RF signal processing modules, industrial data loggers, and high-reliability embedded instrumentation requiring stable component supply across extended temperature ranges.

Supply support for AD7356YRUZ-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 AD7356YRUZ-RL belongs to Analog Devices' precision high-speed SAR ADC product line, designed specifically for demanding industrial and communications applications requiring simultaneous dual-channel acquisition, low power, and robust operation from −40°C to +125°C.

FAQ

What is the maximum analog input frequency supported by the AD7356YRUZ-RL?

The AD7356YRUZ-RL has a full-power bandwidth of 110 MHz at the −3 dB point and 77 MHz at the −0.1 dB point, enabling accurate digitization of high-frequency signals such as motor current harmonics or IF signals in communication receivers. This bandwidth is maintained across the full −40°C to +125°C operating range, ensuring consistent performance in thermally challenging environments.

Does the AD7356YRUZ-RL require an external reference, or can it operate with its internal reference?

The AD7356YRUZ-RL includes a fully integrated 2.048 V reference with ±0.25% initial accuracy and 6 ppm/°C temperature coefficient, allowing standalone operation without external components. The REFA and REFB pins can be overdriven with an external reference between 2.148 V and VDD if higher precision or different voltage scaling is required, making AD7356YRUZ-RL flexible for both cost-sensitive and high-accuracy designs.

How does the AD7356YRUZ-RL handle simultaneous sampling of two channels?

The AD7356YRUZ-RL achieves true simultaneous sampling using two independent track-and-hold amplifiers, each preceding its own SAR ADC. Both channels sample on the same falling edge of the CS signal, with aperture delay match specified at ≤40 ps, ensuring phase coherence essential for vector calculations and I/Q demodulation. This eliminates software or hardware skew correction needed with multiplexed alternatives.

What digital interface protocols are supported by the AD7356YRUZ-RL?

The AD7356YRUZ-RL features a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards. It uses a standard 4-wire configuration (CS, SCLK, SDATAA, SDATAB) with MSB-first 12-bit data framing, two leading zeros, and optional trailing zeros. The interface operates up to 80 MHz SCLK, supporting full 5 MSPS throughput with minimal microcontroller overhead.

Can the AD7356YRUZ-RL be used in automotive under-hood applications?

Yes-the AD7356YRUZ-RL is rated for operation from −40°C to +125°C (Y-grade), with tested reliability including 150°C junction temperature limit and robust ESD protection (1.5 kV HBM). Its 2.5 V single-supply operation, low 36 mW active power, and high PSRR (−70 dB typical) make it suitable for engine control units, battery management systems, and other automotive subsystems exposed to extreme thermal and electrical stress.