AD9226ARSZ - 12-Bit 65 MSPS Pipeline ADC | Analog Devices
MPN: AD9226ARSZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $35.2 | $352.00 |
| 100 | $30.1 | $3,010.00 |
| 500 | $26.75 | $13,375.00 |
| 1,000 | $23.4 | $23,400.00 |
AD9226ARSZ Overview
An analog-to-digital converter (ADC) is a data converter that transforms continuous analog signals into discrete digital codes for processing by DSPs, FPGAs, and microcontrollers. Pipeline ADCs like the AD9226 use multiple low-resolution flash stages to achieve high sample rates with low latency; they sit within the hierarchy of successive-approximation (SAR), delta-sigma, and flash ADCs, and belong to the broader data-converter family of mixed-signal ICs used in signal-chain and instrumentation systems.
Key features include a signal-to-noise ratio of approximately 69 dB, a spurious-free dynamic range (SFDR) of approximately 80 dB, an effective number of bits (ENOB) of 11.1 at fIN = 10 MHz, and a low-power architecture aimed at imaging and communications front-ends. The wideband sample-and-hold input supports differential or single-ended drive with simple passive or active signal conditioning, and the digital outputs provide CMOS-compatible parallel data.
Internally the AD9226 uses a multistage differential pipeline architecture with output error-correction logic. The on-chip 2.5 V reference can be left internal or overdriven by an external reference for gain calibration or channel matching in multi-board systems; the data-ready output simplifies interface to FIFOs, DSPs, and FPGAs.
Typical applications include medical ultrasound imaging, IF sampling in communications receivers, baseband digital signal processing, instrumentation digitizers, and CCD/camera imaging systems. The combination of 12-bit resolution, 65 MSPS sampling rate, and 28-SSOP footprint makes it a versatile front-end for mid-bandwidth data acquisition.
When designing with the AD9226, the most important consideration is using a single +5 V supply rail and providing proper analog input common-mode biasing; bypassing the supply pins with 100 nF and 10 uF ceramic capacitors placed within a few millimetres of each pin maintains rated dynamic performance and minimizes digital coupling into the analog front-end.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers shorten the selection and PCB procurement cycle.
Drop-in alternatives for AD9226ARSZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AD9226ARSZ (same form factor and footprint) — differing in Architecture, Input Type, Number of Channels, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD9226ARS-REEL
✅ Drop-In📋 Reference alternative (not in catalog)
AD9225ARS
✅ Drop-In📋 Reference alternative (not in catalog)
AD9220AR
✅ Drop-In📋 Reference alternative (not in catalog)
AD9221ARS
✅ Drop-In📋 Reference alternative (not in catalog)
AD9223AR
✅ Drop-In📋 Reference alternative (not in catalog)
AD9226ARSZ Maximum Ratings & Electrical Characteristics
| Resolution | 12 bits |
| Number of Channels | 1 |
| Sampling Rate | 65 MSPS |
| Architecture | Pipelined |
| Input Type | Differential, single-ended compatible |
| Supply Voltage | 4.75 V to 5.25 V (single +5 V) |
| Signal-to-Noise Ratio (SNR) | 69 dB (typical at fIN = 31 MHz) |
| Effective Number of Bits (ENOB) | 11.1 (typical at fIN = 10 MHz) |
| Spurious-Free Dynamic Range (SFDR) | 80 dB (typical at fIN = 31 MHz) |
| Intermodulation Distortion | -75 dBFS at fIN = 140 MHz |
| On-Chip Reference | 2.5 V internal (drivable externally) |
| Data Interface | CMOS parallel |
| Data Output Format | Straight binary, parallel |
| Operating Temperature | -40 C to +85 C |
| Package | 28-SSOP (5.30 mm width) |
| Packaging Type | Tube |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
AD9226ARSZ Pin Configuration
| Pin 1 | CML — Common-mode level reference voltage output |
| Pin 2 | DRVDD — Digital driver supply (5 V) |
| Pin 3 | DGND — Digital ground |
| Pin 4 | OE — Output enable, active high |
| Pin 5 | NC — Not connected |
| Pin 6 | D11 — Data output bit 11 (MSB) |
| Pin 7 | D10 — Data output bit 10 |
| Pin 8 | D9 — Data output bit 9 |
| Pin 9 | D8 — Data output bit 8 |
| Pin 10 | D7 — Data output bit 7 |
| Pin 11 | D6 — Data output bit 6 |
| Pin 12 | D5 — Data output bit 5 |
| Pin 13 | D4 — Data output bit 4 |
| Pin 14 | NC — Not connected |
| Pin 15 | DRVDD — Digital driver supply (5 V) |
| Pin 16 | DGND — Digital ground |
| Pin 17 | DR — Data ready output strobe |
| Pin 18 | DFS — Data format select (binary output indicator) |
| Pin 19 | CLK — Clock encode input |
| Pin 20 | AVDD — Analog supply (5 V) |
| Pin 21 | AVSS — Analog ground |
| Pin 22 | SENSE — Reference configuration input |
| Pin 23 | VREF — Voltage reference (2.5 V internal) |
| Pin 24 | CAPB — Reference decoupling capacitor B |
| Pin 25 | CAPA — Reference decoupling capacitor A |
| Pin 26 | VIN- — Analog differential input negative |
| Pin 27 | VIN+ — Analog differential input positive |
| Pin 28 | AVDD — Analog supply (5 V) |
Typical Applications
AD9226ARSZ is suitable for 6 applications: Medical Ultrasound Imaging Front-End, IF Sampling in Communications Receivers, Industrial Data-Acquisition Systems, CCD and CMOS Camera Imaging Digitizer, Radar and Lidar Signal Capture, Portable Test and Measurement Instrumentation.
Medical Ultrasound Imaging Front-End
The AD9226ARSZ's 12-bit resolution and 65 MSPS sampling rate make it ideal for the analog front-end of medical ultrasound beamformers that digitize received echoes from piezoelectric transducers. The 80 dB SFDR preserves contrast between small tissue reflections and large specular echoes, and the 69 dB SNR ensures clean grayscale rendering. Placed after a TGC amplifier and LNA at the receive chain, the ADC converts at 65 MSPS to satisfy 30 MHz probe bandwidth. A single +5 V rail simplifies medical-cart and handheld-device power trees with reinforced isolation.
Recommended
IF Sampling in Communications Receivers
The AD9226ARSZ enables direct IF sampling in narrow-band base-station and software-defined-radio receivers by digitizing 10-70 MHz intermediate-frequency signals without a second down-conversion stage. Its 65 MSPS rate comfortably oversamples the IF bandwidth, while the pipelined core keeps latency low for receiver feedback paths. The 28-SSOP footprint supports multi-IF boards where each antenna branch carries one AD9226ARSZ paired with an RF front-end. Using the internal 2.5 V reference removes a calibration pass.
Recommended
Industrial Data-Acquisition Systems
In factory-automation data-acquisition modules the AD9226ARSZ converts 0-5 V transducer signals such as vibration sensors, load cells, and process-control voltages into 12-bit digital codes. The 65 MSPS throughput allows multi-channel time-interleaved capture, while the 28-SSOP industrial-temperature (-40 to +85 C) grade supports cabinet installations. Each channel pairs the ADC with an instrumentation amplifier and an antialiasing filter, after which data is streamed to an FPGA over the parallel CMOS bus. RoHS compliance simplifies EU plant deployments.
Recommended
CCD and CMOS Camera Imaging Digitizer
The AD9226ARSZ digitizes analog video from CCD image-sensor readout ASICs in industrial machine-vision and broadcast cameras. Its 65 MSPS rate supports progressive-scan 720p/1080i formats and higher-resolution preview modes, while the 12-bit resolution preserves tonal detail in shaded regions. Mounted adjacent to the analog video processor, the converter feeds a video encoder or an FPGA that performs on-camera image signal processing. Power dissipation near 300 mW is acceptable for enclosed camera housings with moderate airflow.
Recommended
Radar and Lidar Signal Capture
The AD9226ARSZ is well matched to short-range automotive and industrial radar receivers where 12-bit accuracy and 65 MSPS sampling capture IF returns from FMCW chirp and pulsed LIDAR front-ends. The differential sample-and-hold input cancels common-mode noise from the antenna chain, and the 80 dB SFDR protects small return amplitudes against distortion. The 28-SSOP footprint supports multi-channel radar head-prints where one ADC is allocated per Rx antenna with tight channel-to-channel skew.
Recommended
Portable Test and Measurement Instrumentation
Handheld oscilloscopes, spectrum analyzers, and bench digitizers benefit from the AD9226ARSZ's combination of 65 MSPS real-time sampling and a single +5 V supply. The 12-bit resolution supports 0.5% DC accuracy on the metrology front-end, and the on-chip 2.5 V reference reduces external components. The 28-SSOP footprint keeps the analog front-end small, so portable instruments can pack four AD9226 channels in a slim enclosure. The CMOS-parallel output simplifies connection to low-cost FPGAs implementing deep acquisition memory.
Recommended
Recommended Products Summary
Engineering reference data for AD9226ARSZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD9226ARS-REEL | AD9225ARS | AD9220AR |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits |
| Sampling Rate | 65 MSPS | 65 MSPS | 25 MSPS | 10 MSPS |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined |
| Supply Voltage | +5 V single | +5 V single | +5 V single | +5 V single |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| RoHS Status | Compliant | Compliant | Compliant | Compliant |
| Packaging | Tube | Tape & Reel | Tube | Tube |
Key Differentiators
- Best sample-rate headroom within the AD92xx 28-SSOP family (vs AD9225ARS)
- Mid-range speed balanced against low power (vs AD9220AR)
- Differential sample-and-hold input (vs AD9226ARS-REEL)
Design Notes
The AD9226ARSZ requires a clean +5 V rail because analog current spikes during sampling can couple noise from an unregulated supply into the AVDD pin and degrade SNR. Estimated: place a 10 uF tantalum and a 100 nF ceramic decoupling capacitor within 5 mm of each AVDD pin; a separate ferrite or pi-filter between the digital +5 V and analog +5 V reduces digital-rail noise. Allow 200 mV of headroom on the regulator to keep dropout margin.
Route the differential analog inputs (VIN+, VIN-) on a matched-impedance strip-line to balance skew and preserve SFDR; route them on the top layer above a continuous analog ground plane. Enclose encode-clock traces with their own guard ground and keep the CLK trace at least 3 line-widths from analog traces to limit coupling. Place CAPA and CAPB reference decoupling capacitors right at the IC to maintain reference stability over temperature.
Do not leave the SENSE pin floating - it must be strapped to AVDD or AGND per the AD9226 datasheet reference-configuration table to enable the on-chip 2.5 V reference. A floating SENSE pin puts the internal reference into a defined-but-untrimmed state and can produce up to 5% gain error. When the part is not used during power-down, drive OE high before power-down and verify the data outputs are not driving the FPGA inputs.
Compliance Information
RoHS compliant per Analog Devices product page. The 'Z' suffix designates Pb-free lead finish. Halogen-free status not stated in available data and should be confirmed with the manufacturer for specific applications.