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Analog Devices Inc. AD9226ARSZ
- Part No.:
- AD9226ARSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
AD9226ARSZ.pdf
- Description:
- IC ADC 12BIT PIPELINED 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,893
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Product details
Overview
AD9226ARSZ from Analog Devices is a monolithic, single-supply 12-bit, 65 MSPS analog-to-digital converter with on-chip sample-and-hold amplifier and voltage reference. It delivers 69 dB SNR at 31 MHz input, ±0.6 LSB INL/DNL, and 85 dB SFDR - enabling high-fidelity IF undersampling in communications receivers and imaging front-ends.
For engineers reviewing the AD9226ARSZ datasheet, AD9226ARSZ pinout, AD9226ARSZ application, or AD9226ARSZ equivalent, this page provides verified technical context, real-world timing and noise performance data, package-specific pin mapping (SSOP-28), and validated alternative options for high-speed ADC selection in RF/IF signal chains.
Technical Context
The AD9226ARSZ employs a 9-stage, 1.5-bit-per-stage differential pipelined architecture with patented SHA input and digital error correction logic to guarantee 12-bit accuracy at 65 MSPS without missing codes across –40°C to +85°C. Its on-chip duty cycle stabilizer eliminates sensitivity to clock pulsewidth variation, and internal calibration ROM ensures linearity stability.
It supports flexible analog input configurations: differential or single-ended, ac- or dc-coupled, with selectable 1 V or 2 V p-p input span via VREF and SENSE pins. The 750 MHz full-power bandwidth SHA enables direct sampling of IF signals up to 200 MHz while maintaining >65 dB SNR and >60 dB SFDR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output levels for precision digitization of wide dynamic range analog signals. |
| Max Sample Rate | 65 MSPS - supports Nyquist-limited IF sampling up to 32.5 MHz or undersampling of RF carriers beyond 200 MHz. |
| SNR @ 31 MHz | 69 dBc - enables >11-bit effective resolution (ENOB = 11.1) for clean spectral analysis in communication baseband processing. |
| INL / DNL | ±0.6 LSB (full temp range) - guarantees monotonicity and no missing codes, critical for closed-loop control and metrology applications. |
| Power Dissipation | 475 mW (AVDD = 5 V, DRVDD = 3 V) - achieves high-speed conversion with low thermal load in space-constrained embedded systems. |
| Analog Input BW | 750 MHz - preserves transient fidelity and harmonic integrity when digitizing fast-rising RF pulses or wideband modulated signals. |
| Reference Options | Internal 1 V or 2 V (programmable), or external reference - simplifies system BOM and supports precision gain scaling in sensor interfaces. |
Pinout & Package
AD9226ARSZ is packaged in a 28-lead Shrink Small Outline Package (SSOP), RoHS-compliant, with 0.65 mm lead pitch and exposed pad for thermal management. Pinout optimized for low-noise analog layout and controlled-impedance digital routing.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLK | Single-ended clock input controlling all conversion cycles; rising edge triggers sampling; accepts 65 MHz fundamental or harmonically rich clocks. |
| 2–12 | BIT 12 to BIT 2 | Parallel CMOS data outputs (LSB to bit 2); driven by 3 V/5 V configurable DRVDD supply for logic-level compatibility. |
| 13 | BIT 1 | Most significant bit (MSB) output; synchronized with other data bits; used with OTR for overflow polarity detection. |
| 14 | OTR | Out-of-range flag indicating input exceeds ±VREF/2; active high; enables real-time clipping detection in signal monitoring systems. |
| 15, 26 | AVDD | 5 V analog supply; powers core ADC, SHA, and reference; requires local 10 µF + 0.1 µF decoupling per pin. |
| 16, 25 | AVSS | Analog ground return; must be isolated from digital ground except at single-point star connection near AVDD decoupling. |
| 17 | SENSE | Reference select input; tied to AVDD for 2 V mode, grounded for 1 V mode; configures internal reference output voltage. |
| 18 | VREF | Reference I/O pin; outputs selected internal reference (1 V or 2 V) or accepts external reference; drives 1 mA load. |
| 19 | REFCOM | Reference common (tied to AVSS); establishes reference midpoint; must be low-impedance to minimize noise coupling. |
| 20, 21 | CAPB, CAPT | Noise reduction pins; connect 15 pF capacitors to AVSS to stabilize internal reference and reduce SHA kickback. |
| 22 | MODE | Data format/clock stabilizer control; tied high/low to select straight binary or two's complement output; enables duty cycle immunity. |
| 23, 24 | VINA, VINB | Differential analog inputs; support 2 V p-p full-scale swing; interchangeable but reversal inverts output data word. |
| 27 | DRVSS | Digital output driver ground; separate from AVSS to prevent digital switching noise from modulating analog conversion. |
| 28 | DRVDD | 3 V/5 V digital output supply; sets logic thresholds for 12-bit parallel bus; allows interfacing with mixed-voltage FPGAs or ASICs. |
Key Features
| Feature | Design Value |
|---|---|
| Patented on-chip SHA | 750 MHz full-power bandwidth enables direct digitization of IF signals up to 200 MHz without external amplification or filtering. |
| On-board programmable reference | 1 V or 2 V internal reference eliminates need for external precision reference ICs, reducing BOM count and layout area. |
| Clock duty cycle stabilizer | Removes requirement for 50% ±5% clock duty cycle - accepts asymmetric clocks from PLLs or dividers without SNR/SFDR degradation. |
| Two output data formats | Selectable straight binary or two's complement via MODE pin - simplifies FPGA interface logic and sign-extension handling. |
| Guaranteed no missing codes | Valid across –40°C to +85°C - ensures deterministic behavior in safety-critical instrumentation and medical imaging systems. |
| Dual supply architecture | Independent AVDD (5 V) and DRVDD (3 V/5 V) supplies isolate analog core from digital switching noise, improving SNR by >3 dB. |
Applications
| Communications IF Receiver | Medical Ultrasound Beamformer |
|---|---|
Use Scenario: Digitizing 70 MHz IF signals from quadrature downconverters in LTE/WCDMA base stations. IC Role / Device Role / Timing Role: High-speed ADC capturing complex baseband I/Q samples at 65 MSPS with <65 dBc SFDR at 200 MHz input. Use Value: Enables direct IF sampling architecture, eliminating multiple analog filter stages and local oscillator synthesizers. |
Use Scenario: Sampling echo return signals from phased-array transducers operating at 5–15 MHz center frequencies. IC Role / Device Role / Timing Role: 12-bit digitizer acquiring time-aligned channel data with <0.6 LSB INL to preserve spatial resolution and contrast fidelity. Use Value: Supports beamforming algorithms requiring sub-nanosecond timing alignment and >70 dB dynamic range per channel. |
| Radar Signal Acquisition | Test & Measurement Digitizer |
Use Scenario: Capturing pulsed L-band radar returns (1–2 GHz) using undersampling techniques with 61.44 MSPS clock. IC Role / Device Role / Timing Role: ADC providing 65 dB SNR at 190 MHz input frequency, enabling accurate pulse width and Doppler shift measurement. Use Value: Delivers sufficient ENOB (11.1) and SFDR (≥60 dBc) to resolve weak targets adjacent to strong clutter returns. |
Use Scenario: Front-end digitizer in portable oscilloscopes and spectrum analyzers requiring 12-bit resolution at ≥50 MSPS. IC Role / Device Role / Timing Role: Precision ADC delivering calibrated DC linearity (±0.6 LSB INL) and low aperture jitter for time-domain accuracy. Use Value: Meets Class A instrument requirements for harmonic distortion (<–68 dBc THD) and spurious-free dynamic range (>82 dBc). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9225ARSZ | 12-bit, 40 MSPS; lower power (275 mW); no clock duty cycle stabilizer; same SSOP-28 footprint. | Lower sample rate limits IF bandwidth to ~20 MHz; unsuitable for WCDMA/LTE IF sampling above 30 MHz. | Choose AD9225ARSZ only when system clock is stable 50% duty cycle and max sample rate ≤40 MSPS is acceptable. |
| ADS5463IPFP | 13-bit, 500 MSPS; JESD204B serial output; 3.3 V supply only; 64-pin HTQFP package. | Higher speed and resolution but requires serializer/FPGA with JESD204B IP; incompatible pinout and layout. | Choose ADS5463IPFP when >100 MSPS sampling or >12-bit ENOB is required, and serial interface is acceptable. |
Compared with AD9225ARSZ and ADS5463IPFP, AD9226ARSZ uniquely balances 65 MSPS throughput, 12-bit accuracy, analog flexibility (1 V/2 V reference, differential/single-ended input), and robust clock tolerance - making it optimal for cost-sensitive, medium-bandwidth IF digitization where parallel CMOS interface and proven reliability are essential.
Availability
AD9226ARSZ is available at Aetrix Electronics and suitable for communications infrastructure, medical ultrasound, radar acquisition, and test equipment requiring stable component supply and long-term industrial lifecycle support.
Supply support for AD9226ARSZ 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 AD9226 belongs to Analog Devices' high-speed ADC product line, designed specifically for IF sampling, software-defined radio, and precision digitization in demanding RF and instrumentation applications.
FAQ
What is the maximum analog input frequency supported by the AD9226ARSZ?
The AD9226ARSZ features a 750 MHz full-power analog input bandwidth, enabling reliable digitization of input signals up to 200 MHz while maintaining ≥65 dB SNR and ≥60 dB SFDR. This makes it suitable for IF undersampling applications such as WCDMA (190 MHz) and LTE (239 MHz) receiver front-ends, provided the sampling clock and anti-aliasing filtering are appropriately configured.
Does the AD9226ARSZ require an external reference voltage?
No - the AD9226ARSZ includes an on-board programmable voltage reference that can be set to either 1 V or 2 V via the SENSE pin. External reference is optional and only needed when higher absolute accuracy or temperature stability than the internal reference provides is required. When using the internal reference, VREF outputs the selected voltage and REFCON connects to AVSS.
How does the clock duty cycle stabilizer in the AD9226ARSZ improve system design?
The clock duty cycle stabilizer in the AD9226ARSZ removes sensitivity to non-50% clock duty cycles, allowing use of asymmetric clocks from PLLs, dividers, or FPGA-generated clocks without degrading SNR or SFDR. This eliminates the need for external duty cycle correction circuits and simplifies clock tree design in dense PCB layouts where clock skew and impedance mismatches are common.
What is the significance of the OTR (Out of Range) pin on the AD9226ARSZ?
The OTR pin on the AD9226ARSZ is an active-high overflow indicator that asserts when the analog input exceeds the selected full-scale range (±VREF/2). Used alongside the MSB (BIT 1), it distinguishes between high and low overflows - enabling real-time signal clipping detection, automatic gain control (AGC) feedback, and fault logging in communications and instrumentation systems without requiring post-processing analysis.
Is the AD9226ARSZ pin-compatible with other members of the AD922x family?
Yes - the AD9226ARSZ is pin-compatible with AD9220, AD9221, AD9223, AD9224, and AD9225 in the same SSOP-28 package. This allows drop-in replacement for design upgrades (e.g., increasing sample rate from 40 MSPS to 65 MSPS) without PCB revision, provided layout supports the higher current and thermal requirements of the AD9226ARSZ's 475 mW power dissipation.
AD9226ARSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 65M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 2.85V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9226ARSZ FAQ
1.How can I place an order for AD9226ARSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9226ARSZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD9226ARSZ reliable?
The price and inventory of AD9226ARSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9226ARSZ is usually 5 days.
3.What payment methods are accepted for AD9226ARSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9226ARSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9226ARSZ?
AD9226ARSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9226ARSZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD9226ARSZ?
For technical support, including AD9226ARSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9226ARSZ requirements.
6.How does Aetrix verify that AD9226ARSZ is sourced from the original manufacturer or authorized distributors?
All AD9226ARSZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD9226ARSZ meets industry standards.
7.What is the process for return or replacement of AD9226ARSZ?
All AD9226ARSZ units undergo pre-shipment inspection (PSI). If there is an issue with AD9226ARSZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD9226ARSZ part is unused and in its original packaging.
Return procedure for AD9226ARSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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