Analog Devices Inc. AD9220ARZ-REEL

Overview

AD9220ARZ-REEL 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 3–5 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-REEL datasheet, AD9220ARZ-REEL pinout, AD9220ARZ-REEL application, or AD9220ARZ-REEL equivalent, key selection criteria include its 10 MSPS throughput, 0.09 LSB input-referred noise at 2.5 V reference, guaranteed no missing codes, differential analog input flexibility, and SOIC-28 package compatibility with AD9221/AD9223 for scalable design migration.

Technical Context

The AD9220ARZ-REEL employs a four-stage differential pipelined architecture with digital error correction logic to deliver true 12-bit accuracy and guarantee no missing codes across –40°C to +85°C. Its sample-and-hold amplifier supports both single-ended and differential inputs with configurable common-mode level (via CML pin) and selectable input spans of 2 V_p-p or 5 V_p-p.

Internal timing uses the rising edge of a single CMOS-compatible clock; pipeline latency is fixed at three clock cycles. The device accepts external references and features an out-of-range (OTR) flag synchronized to the MSB for overflow detection - critical for real-time signal integrity monitoring in communication and instrumentation applications.

Key Specifications

Pinout & Package

AD9220ARZ-REEL is housed in a 28-lead SOIC (R-28) package with standard JEDEC outline, 1.27 mm pitch, and exposed pad not present. Thermal resistance θ_JA = 71.4°C/W enables operation up to +85°C ambient with moderate PCB copper area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9220ARZ-REEL, AD9223ARZ-REEL offers lower power and reduced speed for cost- and thermal-sensitive designs, while ADS8325IPW trades speed and integration for higher resolution and serial interface - neither is pin-compatible, but both address adjacent points in the precision/speed trade space.

Availability

AD9220ARZ-REEL is available at Aetrix Electronics and suitable for medical ultrasound imaging, communications baseband receivers, industrial PLC analog input modules, and portable test equipment requiring stable component supply and long-term production continuity.

Supply support for AD9220ARZ-REEL 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 AD9220ARZ-REEL belongs to the AD922x family of monolithic 12-bit ADCs designed for high-speed, low-power data acquisition in instrumentation, communications, and medical systems where integration, dc accuracy, and ac performance must coexist.

FAQ

What is the maximum sampling rate supported by the AD9220ARZ-REEL?

The AD9220ARZ-REEL supports a maximum conversion rate of 10.0 MSPS, as specified in its datasheet under AC and switching specifications. This rate is validated across the full industrial temperature range (–40°C to +85°C) with AVDD = 5 V, DVDD = 5 V, and VREF = 2.5 V. At this rate, the AD9220ARZ-REEL maintains 70 dB SINAD and 88 dB SFDR, making it suitable for digitizing signals up to 5 MHz bandwidth.

Does the AD9220ARZ-REEL require an external reference voltage?

No, the AD9220ARZ-REEL includes an internal programmable voltage reference that can be configured for either 1 V or 2.5 V output, with typical tolerances of ±14 mV and ±35 mV respectively. An external reference may be used via the VREF pin if tighter initial accuracy or lower temperature drift is required - but the AD9220ARZ-REEL operates fully functional with its internal reference enabled.

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

Yes, the AD9220ARZ-REEL shares identical pinout, package (28-lead SOIC), and interface with AD9221ARZ and AD9223ARZ. All three devices use the same functional block diagram, timing structure, and registerless parallel output format. This allows direct substitution in existing layouts when scaling sample rate and power - for example, replacing AD9220ARZ-REEL with AD9223ARZ-REEL requires only clock and supply adjustments.

What does the OTR (Out-of-Range) signal indicate on the AD9220ARZ-REEL?

The OTR signal on the AD9220ARZ-REEL is an active-high flag indicating analog input overflow - i.e., when |VINA – VINB| exceeds the selected full-scale range (±1 V or ±2.5 V). It is synchronized to the MSB output and updates each conversion cycle. In practice, the AD9220ARZ-REEL's OTR enables real-time clipping detection for AGC loops or data validity filtering without post-processing overhead.

Can the AD9220ARZ-REEL operate with a 3.3 V digital supply?

Yes, the AD9220ARZ-REEL 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 families: VOH is ≥2.80 V (min) at IOH = 0.5 mA with DVDD = 3 V, and VOL is ≤0.4 V (max) at IOL = 1.6 mA. This allows direct interfacing to FPGAs or microcontrollers without level-shifting circuitry.