Analog Devices Inc. AD9223ARZ

Overview

AD9223ARZ from Analog Devices is a monolithic 12-bit analog-to-digital converter with 3.0 MSPS sampling rate, 70 dB SINAD, ±0.5 LSB integral nonlinearity, and single 5 V analog supply. It integrates a sample-and-hold amplifier and programmable voltage reference, and is used in high-fidelity data acquisition systems requiring precise dc linearity and low-noise ac performance.

For engineers reviewing the AD9223ARZ datasheet, AD9223ARZ pinout, AD9223ARZ application, or AD9223ARZ equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and parametric differences.

Technical Context

The AD9223ARZ employs a four-stage differential pipelined architecture with digital error correction logic to guarantee no missing codes over temperature and deliver true 12-bit accuracy at 3.0 MSPS. Its sample-and-hold amplifier supports both single-ended and differential inputs with configurable common-mode level (via CML pin) and selectable input span (2 V or 5 V p-p).

It uses internal clock edge timing-sampling on the rising edge while holding during the high phase-and features straight binary output format with out-of-range (OTR) flag. The device operates with AVDD = 5 V and DVDD = 2.7–5.25 V, enabling interoperability with 3.3 V or 5 V digital logic families.

Key Specifications

Pinout & Package

AD9223ARZ is housed in a 28-lead SOIC package (R-28), RoHS-compliant, with 1.27 mm pitch and standard JEDEC MS-012 outline. Thermal resistance θ_JA = 71.4°C/W enables operation up to +85°C ambient without forced airflow.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 12-bit ADC applications.

Compared with AD9221ARZ and AD9220ARZ, the AD9223ARZ provides the optimal balance of speed (3 MSPS), power (100 mW), and dynamic performance (70 dB SINAD) for mid-tier data acquisition where neither ultra-low power nor maximum throughput is dominant.

Availability

AD9223ARZ is available at Aetrix Electronics and suitable for medical imaging systems, industrial PLC analog input modules, communications IF receivers, and portable test equipment requiring stable component supply and long-term production continuity.

Supply support for AD9223ARZ 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 AD922x family was designed to deliver monolithic, single-supply 12-bit ADC performance for cost-sensitive, space-constrained applications in instrumentation, medical, and communications-replacing multi-chip hybrid solutions with integrated SHA, reference, and digital correction.

FAQ

What is the maximum sampling rate supported by the AD9223ARZ?

The AD9223ARZ supports a maximum conversion rate of 3.0 MSPS, as specified in its datasheet under all operating conditions. This rate is guaranteed with full 12-bit performance, including ±0.5 LSB INL and 70 dB SINAD, when powered with AVDD = 5 V and DVDD = 5 V. Clock period must be ≥333 ns, with minimum high/low pulse widths of 150 ns each.

Does the AD9223ARZ require an external voltage reference?

No, the AD9223ARZ includes a programmable internal voltage reference that can be configured for either 1 V or 2.5 V output via the SENSE pin. External reference is optional and only needed when tighter initial accuracy (<±0.5%) or lower temperature drift (<26 ppm/°C) is required than the internal reference provides.

How is differential input configured on the AD9223ARZ?

Differential input on the AD9223ARZ is implemented using VINA and VINB pins, with the core input defined as VINA – VINB. To configure, tie CML to AVDD/2 (2.5 V), set VREF = 2.5 V, and apply complementary signals to VINA and VINB. The device inherently rejects common-mode noise, and matched source impedances on both inputs maximize DNL performance.

What does the OTR pin indicate on the AD9223ARZ?

The OTR (Out-of-Range) pin on the AD9223ARZ is an active-high signal indicating that the analog input exceeded the valid range defined by ±VREF. When OTR is asserted, the MSB (BIT 1) distinguishes polarity: high MSB indicates positive overflow (VINA – VINB > VREF), low MSB indicates negative overflow (VINA – VINB < –VREF).

Can the AD9223ARZ operate with a 3.3 V digital supply?

Yes, the AD9223ARZ supports DVDD from 2.7 V to 5.25 V, making it fully compatible with 3.3 V digital systems. Logic outputs meet VOH ≥2.80 V (IOH = 0.5 mA) and VOL ≤0.4 V (IOL = 1.6 mA) at DVDD = 3.3 V, ensuring reliable interfacing with standard 3.3 V CMOS FPGAs and microcontrollers without level-shifting.