Analog Devices Inc. AD9220ARZ

Overview

AD9220ARZ from Analog Devices is a monolithic 12-bit analog-to-digital converter with 10.0 MSPS sampling rate, 70 dB SINAD, and 88 dB SFDR, operating on a single 5 V analog supply and 2.7–5.25 V digital supply. It integrates a low-noise sample-and-hold amplifier and programmable 1 V/2.5 V voltage reference, and is used in high-speed data acquisition systems requiring precise dc linearity and wideband ac performance.

For engineers reviewing the AD9220ARZ datasheet, AD9220ARZ pinout, AD9220ARZ application, or AD9220ARZ equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternatives, and supply-chain support tailored for industrial and communications signal chain design.

Technical Context

The AD9220ARZ uses a 4-stage differential pipelined architecture with digital error correction logic to guarantee no missing codes over temperature and deliver true 12-bit linearity. Its sample-and-hold amplifier supports both single-ended and differential inputs with configurable common-mode level (CML) and input spans of 2 V or 5 V p-p.

Internal timing relies on a single clock input controlling all conversion cycles; sampling occurs on the rising edge, with pipeline latency fixed at 3 clock cycles. The device employs CMOS switches optimized for low R_ON modulation-performance peaks when input common-mode voltage is centered at AVDD/2 (2.5 V) and input span is minimized (2 V).

Key Specifications

Pinout & Package

AD9220ARZ is housed in a 28-lead SOIC package (R-28 option), RoHS-compliant, with 1.27 mm lead pitch and JEDEC MS-013AC footprint. Thermal resistance θ_JA = 71.4°C/W enables operation at full speed without forced air in standard PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9220ARZ, AD9223ARZ and AD9221ARZ offer identical functionality and layout compatibility but scale sampling rate and power linearly-enabling seamless migration across performance tiers without PCB redesign.

Availability

AD9220ARZ is available at Aetrix Electronics and suitable for communications IF sampling, medical ultrasound beamforming, industrial data acquisition, and test & measurement equipment requiring stable component supply and long-term production continuity.

Supply support for AD9220ARZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The AD922x family was designed for high-speed, single-supply data acquisition in space- and power-constrained systems-delivering 12-bit precision with scalable speed (1.5/3/10 MSPS) in one pin-compatible platform.

FAQ

What is the maximum sampling rate supported by the AD9220ARZ?

The AD9220ARZ supports a maximum conversion rate of 10.0 MSPS, corresponding to a minimum clock period of 100 ns. This enables digitization of input signals with up to 5 MHz Nyquist bandwidth while maintaining 70 dB SINAD and 88 dB SFDR performance as specified in the datasheet under standard conditions (AVDD = 5 V, VREF = 2.5 V, T = 25°C).

Does the AD9220ARZ require an external voltage reference?

No, the AD9220ARZ includes an integrated programmable voltage reference that can be configured for either 1 V or 2.5 V output via the SENSE pin. External reference operation is optional and supported, but not required-the internal reference delivers ±35 mV tolerance at 2.5 V mode and enables simplified system-level design for the AD9220ARZ.

Is the AD9220ARZ pin-compatible with other members of the AD922x family?

Yes, the AD9220ARZ shares identical pinout, package (28-lead SOIC), and interface signals with AD9221ARZ and AD9223ARZ. All three devices support the same digital output format, clocking scheme, and analog input structure-allowing drop-in replacement based solely on required sampling rate and power budget without modifying PCB layout or firmware interface logic for the AD9220ARZ.

What is the purpose of the OTR (Out-of-Range) pin on the AD9220ARZ?

The OTR pin on the AD9220ARZ is an active-high indicator that signals when the analog input exceeds the valid range defined by ±VREF. When asserted, it works in conjunction with the MSB (BIT 1) to distinguish between high-overflow (OTR high, BIT 1 high) and low-overflow (OTR high, BIT 1 low), enabling real-time saturation detection in streaming applications such as spectrum monitoring or ultrasound echo processing using the AD9220ARZ.

Can the AD9220ARZ operate with a 3.3 V digital supply?

Yes, the AD9220ARZ supports DVDD from 2.7 V to 5.25 V, including standard 3.3 V logic levels. Its digital outputs are compatible with both 3.3 V and 5 V CMOS/TTL families: VOH is ≥2.80 V at IOH = 0.5 mA when DVDD = 3 V, ensuring reliable interfacing to FPGAs, microcontrollers, and ASICs without level-shifting circuitry for the AD9220ARZ.