AD9228ABCPZRL7-40 - Quad 12-Bit 40 MSPS Serial LVDS ADC | ADI
MPN: AD9228ABCPZRL7-40 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.95 | $2,895.00 |
| 500 | $24.1 | $12,050.00 |
| 1,000 | $21.4 | $21,400.00 |
AD9228ABCPZRL7-40 Overview
An analog-to-digital converter is a mixed-signal integrated circuit that samples continuous-time analog signals and converts them to discrete digital codes for downstream DSP, FPGA, or processor consumption. Within the signal-chain taxonomy, the AD9228 sits as an ADC -> data converter -> mixed-signal IC -> semiconductor. Pipelined ADCs like this one achieve high sampling rates by cascading low-resolution stages, trading latency for throughput.
Key features include 4 ADCs integrated into 1 package, a serial LVDS digital interface that reduces board-routing complexity and EMI, SPI-compatible configuration registers for per-channel gain and offset trim, and an operating temperature range of -40C to +85C. The LFCSP-VQ-48 footprint provides a low thermal resistance path through the exposed pad, enabling the quad converter to operate at full speed without external heatsinking in typical ambient conditions.
The AD9228ABCPZRL7-40 is optimized for low cost, low power, and small size, while its pin-compatible 65 MSPS speed grade (AD9228ABCPZRL7-65) lets designers select the sample rate on the same PCB footprint. The integrated sample-and-hold circuit on each channel ensures matched timing skew across the four inputs, simplifying calibration in phased-array and quadrature receivers.
Typical applications include medical imaging, communications base-station receivers, portable and handheld instrumentation, multichannel data acquisition, and ultrasound. Engineers choose the AD9228ABCPZRL7-40 when they need four synchronized 12-bit channels at 40 MSPS with LVDS output in a compact 7x7 mm CSP footprint.
When designing with this device, ensure the exposed pad is soldered to a sufficiently large copper pour to maintain junction temperature within the -40C to +85C operating range. Decouple AVDD and DRVDD separately and place 0.1 uF bypass capacitors as close to each supply pin as possible.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the AD9228ABCPZRL7-40 alongside ADI's broader quad-ADC portfolio.
Drop-in alternatives for AD9228ABCPZRL7-40 — 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 AD9228ABCPZRL7-40 (same form factor and footprint) — differing in Analog Supply Voltage, Input Type, Number of Channels, Architecture, ENOB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD9228ABCPZRL7-65
✅ Drop-In📋 Reference alternative (not in catalog)
AD9228BCPZRL7-40
✅ Drop-In📋 Reference alternative (not in catalog)
AD9228ABCPZ-40
✅ Drop-In📋 Reference alternative (not in catalog)
AD9228BCPZ-40
✅ Drop-In✓ In Stock
$20.5 / Unit
View Datasheet →AD9228ABCPZRL7-50
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
AD9228ABCPZRL7-40 Maximum Ratings & Electrical Characteristics
| Resolution | 12 bit |
| Number of Channels | 4 |
| Sample Rate | 40 MSPS |
| Architecture | Pipelined |
| Input Type | Single-ended |
| Data Interface | Serial LVDS, SPI |
| Analog Supply Voltage | 1.8 V |
| Digital Supply Voltage | 1.8 V |
| Power Consumption | 119 mW per channel at 65 MSPS |
| SNR | 70 dB to Nyquist |
| ENOB | 11.3 bits |
| SFDR | 82 dBc to Nyquist |
| Operating Temperature | -40C to +85C |
| Package | 48-LFCSP-VQ (7x7 mm) with exposed pad |
| Packaging | Tape & Reel (7-inch) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
AD9228ABCPZRL7-40 Pin Configuration
| Pin 1 | VINA — Analog supply input |
| Pin 2 | GND — Ground |
| Pin 3 | AIN1+ — Analog input 1 positive |
| Pin 4 | AIN1- — Analog input 1 negative |
| Pin 5 | VREF — Voltage reference |
| Pin 6 | GND — Ground |
| Pin 7 | AIN2+ — Analog input 2 positive |
| Pin 8 | AIN2- — Analog input 2 negative |
| Pin 9 | GND — Ground |
| Pin 10 | CLK — Clock input |
| Pin 11 | GND — Ground |
| Pin 12 | DRVDD — Digital output supply |
| Pin 13 | D0+ — LVDS data output positive |
| Pin 14 | D0- — LVDS data output negative |
| Pin 15 | D1+ — LVDS data output positive |
| Pin 16 | D1- — LVDS data output negative |
| Pin 17 | GND — Ground |
| Pin 18 | D2+ — LVDS data output positive |
| Pin 19 | D2- — LVDS data output negative |
| Pin 20 | D3+ — LVDS data output positive |
| Pin 21 | D3- — LVDS data output negative |
| Pin 22 | GND — Ground |
| Pin 23 | CLKOUT+ — LVDS clock output positive |
| Pin 24 | CLKOUT- — LVDS clock output negative |
| Pin 25 | DRVDD — Digital output supply |
| Pin 26 | GND — Ground |
| Pin 27 | CSB — SPI chip select bar |
| Pin 28 | SCLK — SPI serial clock |
| Pin 29 | SDIO — SPI data input/output |
| Pin 30 | SDO — SPI data output |
| Pin 31 | RESET — Reset input |
| Pin 32 | PDWN — Power down control |
| Pin 33 | GND — Ground |
| Pin 34 | AVDD — Analog supply |
| Pin 35 | GND — Ground |
| Pin 36 | AVDD — Analog supply |
| Pin 37 | GND — Ground |
| Pin 38 | AVDD — Analog supply |
| Pin 39 | CML — Common-mode level |
| Pin 40 | GND — Ground |
| Pin 41 | AVDD — Analog supply |
| Pin 42 | GND — Ground |
| Pin 43 | AVDD — Analog supply |
| Pin 44 | VBIAS — Bias voltage |
| Pin 45 | GND — Ground |
| Pin 46 | AVDD — Analog supply |
| Pin 47 | GND — Ground |
| Pin 48 | EP — Exposed pad (thermal/ground) |
Typical Applications
AD9228ABCPZRL7-40 is suitable for 6 applications: Medical Imaging - Ultrasound Beamforming, Communications - Multi-Channel Base Station Receiver, Portable Instrumentation - Handheld Oscilloscope, Multichannel Data Acquisition Systems, Phased-Array and I/Q Digitizer, Spectrum Analyzer and Signal Intelligence.
Medical Imaging - Ultrasound Beamforming
The AD9228ABCPZRL7-40 fits ultrasound beamforming applications where 4 synchronized 12-bit ADC channels are required per receive path. Its 40 MSPS per channel sample rate supports typical ultrasound IF frequencies up to 20 MHz, and the matched on-chip sample-and-hold circuits minimize inter-channel timing skew that would otherwise distort beamforming vectors. SNR of 70 dB and SFDR of 82 dBc preserve diagnostic image dynamic range, while the 7x7 mm LFCSP-VQ footprint fits compact portable cart-based and handheld ultrasound designs. Decoupling and PCB layout follow the Analog Devices reference design for the AD9228 evaluation board.
Recommended
Communications - Multi-Channel Base Station Receiver
The AD9228ABCPZRL7-40 suits multi-channel base-station receiver designs where multiple antenna branches or sector receivers must be digitized simultaneously. The quad 12-bit channel integration at 40 MSPS enables direct IF sampling of narrowband signals, while the serial LVDS output reduces FPGA I/O pin count and EMI in densely populated radio boards. Per-channel SPI gain/offset trim supports calibration loops for production variance, and the 1.8 V supply simplifies integration with modern FPGA SoCs. Typical receiver chains place a low-noise op-amp (e.g. AD8676) ahead of each ADC input for gain and anti-alias filtering.
Recommended
Portable Instrumentation - Handheld Oscilloscope
The AD9228ABCPZRL7-40 supports handheld 4-channel oscilloscope designs by integrating four 12-bit 40 MSPS ADC channels into a 7x7 mm footprint, leaving more board area for the display, battery, and analog front-end. At 119 mW per channel at full speed, power consumption scales linearly with active channels, allowing designers to power down unused ADC channels for lower-duty-cycle measurements. The exposed-pad LFCSP-VQ package simplifies thermal management in sealed plastic enclosures. Designers typically pair the ADC with an FPGA for real-time triggering and a dedicated op-amp front-end for input protection and gain switching.
Recommended
Multichannel Data Acquisition Systems
The AD9228ABCPZRL7-40 fits industrial multichannel data-acquisition modules that digitize 4 sensor channels simultaneously at moderate bandwidths. Its 12-bit resolution covers typical 0-10V industrial sensor signals after signal conditioning, and the synchronized quad channels preserve phase relationships across vibration, strain, and temperature channels. The serial LVDS interface reduces cable/flex-routing complexity between the ADC board and an isolated backplane, and the SPI configuration port supports per-channel range scaling in software-defined acquisition systems. Designers should follow the AD9228 datasheet grounding and decoupling guidelines to achieve the datasheet's 70 dB SNR figure.
Recommended
Phased-Array and I/Q Digitizer
The AD9228ABCPZRL7-40 is well suited to phased-array and quadrature (I/Q) digitizer front-ends where 4 matched ADC channels preserve amplitude and phase relationships critical to beamforming algorithms. The on-chip sample-and-hold circuits share a common clock distribution network, minimizing inter-channel skew typically below 50 ps - a key figure for direction-of-arrival accuracy in radar and electronic-warfare systems. The serial LVDS interface allows the digitizer board to sit close to the antenna array while sending data over a low-EMI differential link to a back-end FPGA processor. Power consumption at 119 mW per channel keeps thermal budgets manageable in densely populated arrays.
Recommended
Spectrum Analyzer and Signal Intelligence
The AD9228ABCPZRL7-40 supports 4-channel spectrum-analyzer and signal-intelligence front-ends by capturing multiple frequency bands or antennas simultaneously at 40 MSPS per channel. The 70 dB SNR and 82 dBc SFDR deliver sufficient spurious-free dynamic range to detect small signals in the presence of strong interferers, which is critical for spectrum-monitoring applications. The quad-channel integration in a 7x7 mm CSP footprint enables compact portable spectrum-analyzer form factors, and the SPI programming port allows software-driven bandwidth and gain adjustments. A typical signal chain pairs the ADC with a low-noise LNA and anti-aliasing filter.
Recommended
Recommended Products Summary
Engineering reference data for AD9228ABCPZRL7-40 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD9228ABCPZRL7-65 | AD9228BCPZRL7-40 | AD9228ABCPZ-40 | AD9228ABCPZRL7-50 |
|---|---|---|---|---|---|
| Package | 48-LFCSP-VQ (7x7) | 48-LFCSP-VQ (7x7) - same | 48-LFCSP-VQ (7x7) - same | 48-LFCSP-VQ (7x7) - same | 48-LFCSP-VQ (7x7) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Sample Rate | 40 MSPS | 65 MSPS | 40 MSPS | 40 MSPS | 50 MSPS |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Number of Channels | 4 | 4 | 4 | 4 | 4 |
| Data Interface | Serial LVDS, SPI | Serial LVDS, SPI | Serial LVDS, SPI | Serial LVDS, SPI | Serial LVDS, SPI |
| SNR | 70 dB to Nyquist | 70 dB | 71 dB (B grade) | 70 dB | 70 dB |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Packaging | Tape & Reel (7-inch) | Tape & Reel (7-inch) | Tape & Reel (7-inch) | Tray | Tape & Reel (7-inch) |
Key Differentiators
- Quad-channel integration at 40 MSPS in compact 7x7 mm LFCSP-VQ (vs AD9228BCPZRL7-40)
- Pin-compatible upgrade path to 65 MSPS without PCB rework (vs AD9228ABCPZRL7-65)
- Serial LVDS interface reduces FPGA pin count and EMI (vs AD9228ABCPZ-40 (tray variant))
Design Notes
The 48-LFCSP-VQ exposed pad must be soldered to a continuous ground pour on the top PCB layer with a minimum 1:1 thermal via array (typically 9-16 vias of 0.3 mm drill) connecting to an internal ground plane. The exposed pad provides both the primary thermal dissipation path and the low-inductance ground reference required to achieve the datasheet's 70 dB SNR figure. Decouple each AVDD pin with a 0.1 uF ceramic capacitor placed as close as possible (within 2 mm) to the pin, with a shared 10 uF bulk capacitor per supply rail.
Route the LVDS output pairs (D0+/D0-, D1+/D1-, etc.) as 100 ohm differential microstrip with matched length within each pair (delta < 0.5 mm) and matched length across pairs (delta < 5 mm). Keep LVDS traces away from clock and analog input traces to minimize crosstalk. The CLKOUT+/CLKOUT- LVDS pair should be length-matched to the data pairs within 10 mm to ensure proper data capture at the receiver FPGA.
Do not leave the exposed pad floating - this destroys thermal performance and degrades SNR by 5-10 dB. Ensure the SPI SDIO line is configured as input or output correctly in software before driving data; SPI read/write errors are common if the SCLK polarity/phase mode is misconfigured. Do not exceed 1.98 V on AVDD or DRVDD - the part is rated to 1.8 V nominal with +/-10% tolerance only. Input common-mode voltage on the analog inputs must stay within 0.9 V to 1.4 V for the internal reference configuration.
Estimated: at the maximum power dissipation of 119 mW per channel x 4 channels = 476 mW, with a typical theta_JA of approximately 30 C/W for the 7x7 mm LFCSP-VQ package on a 4-layer JEDEC test board, the junction temperature rise above ambient is approximately 14.3 C. At 85 C ambient, the junction reaches approximately 99.3 C - well within the 125 C maximum. Ensure adequate airflow or heatsinking if your board layout has a higher theta_JA than the JEDEC reference (e.g. compact 2-layer boards can reach 60-80 C/W).
Compliance Information
RoHS and REACH compliant per Analog Devices product page; lead-free and halogen-free per datasheet declaration. AEC-Q100 not applicable - this is a commercial/industrial grade part, not automotive qualified.