AD9228ABCPZRL7-40 - Quad 12-Bit 40 MSPS Serial LVDS ADC | ADI
MPN: AD9228ABCPZRL7-40 ✓ Hoạt độngAD9228ABCPZRL7-40 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho AD9228ABCPZRL7-40 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với AD9228ABCPZRL7-40 (cùng hình factor và footprint) — khác nhau ở Analog Supply Voltage, Input Type, Number of Channels, Architecture, ENOB.
AD9228ABCPZRL7-65
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AD9228BCPZRL7-40
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AD9228ABCPZ-40
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AD9228BCPZ-40
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AD9228ABCPZRL7-50
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
AD9228ABCPZRL7-40 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 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 |
| Nhiệt độ hoạt động | -40C to +85C |
| Hộp | 48-LFCSP-VQ (7x7 mm) with exposed pad |
| Packaging | Tape & Reel (7-inch) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân AD9228ABCPZRL7-40
| Chân 1 | VINA — Analog supply input |
| Chân 2 | GND — Ground |
| Chân 3 | AIN1+ — Analog input 1 positive |
| Chân 4 | AIN1- — Analog input 1 negative |
| Chân 5 | VREF — Voltage reference |
| Chân 6 | GND — Ground |
| Chân 7 | AIN2+ — Analog input 2 positive |
| Chân 8 | AIN2- — Analog input 2 negative |
| Chân 9 | GND — Ground |
| Chân 10 | CLK — Clock input |
| Chân 11 | GND — Ground |
| Chân 12 | DRVDD — Digital output supply |
| Chân 13 | D0+ — LVDS data output positive |
| Chân 14 | D0- — LVDS data output negative |
| Chân 15 | D1+ — LVDS data output positive |
| Chân 16 | D1- — LVDS data output negative |
| Chân 17 | GND — Ground |
| Chân 18 | D2+ — LVDS data output positive |
| Chân 19 | D2- — LVDS data output negative |
| Chân 20 | D3+ — LVDS data output positive |
| Chân 21 | D3- — LVDS data output negative |
| Chân 22 | GND — Ground |
| Chân 23 | CLKOUT+ — LVDS clock output positive |
| Chân 24 | CLKOUT- — LVDS clock output negative |
| Chân 25 | DRVDD — Digital output supply |
| Chân 26 | GND — Ground |
| Chân 27 | CSB — SPI chip select bar |
| Chân 28 | SCLK — SPI serial clock |
| Chân 29 | SDIO — SPI data input/output |
| Chân 30 | SDO — SPI data output |
| Chân 31 | RESET — Reset input |
| Chân 32 | PDWN — Power down control |
| Chân 33 | GND — Ground |
| Chân 34 | AVDD — Analog supply |
| Chân 35 | GND — Ground |
| Chân 36 | AVDD — Analog supply |
| Chân 37 | GND — Ground |
| Chân 38 | AVDD — Analog supply |
| Chân 39 | CML — Common-mode level |
| Chân 40 | GND — Ground |
| Chân 41 | AVDD — Analog supply |
| Chân 42 | GND — Ground |
| Chân 43 | AVDD — Analog supply |
| Chân 44 | VBIAS — Bias voltage |
| Chân 45 | GND — Ground |
| Chân 46 | AVDD — Analog supply |
| Chân 47 | GND — Ground |
| Chân 48 | EP — Exposed pad (thermal/ground) |
Ứng dụng tiêu biểu
AD9228ABCPZRL7-40 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho AD9228ABCPZRL7-40 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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) |
Bảo phân biệt quan trọng
- Quad-channel integration at 40 MSPS in compact 7x7 mm LFCSP-VQ (vsAD9228BCPZRL7-40)
- Pin-compatible upgrade path to 65 MSPS without PCB rework (vsAD9228ABCPZRL7-65)
- Serial LVDS interface reduces FPGA pin count and EMI (vsAD9228ABCPZ-40 (tray variant))
Ghi chú thiết kế
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).
Thông tin tuân thủ
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.