MAX19526EXE+T - 12-Bit 8-Ch 40Msps ADC | Analog Devices
MPN: MAX19526EXE+T ✓ Hoạt độngMAX19526EXE+T Tóm tắt
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that quantizes a continuous analog input voltage into a discrete digital codeword. The MAX19526 belongs to the pipeline-ADC sub-category of Nyquist-rate data converters, itself a branch of data acquisition ICs in the broader mixed-signal/power management hierarchy. Pipeline ADCs trade slightly higher power for high sample rates and excellent dynamic range, making them the standard architecture for medical imaging, communications baseband, and instrumentation front-ends.
Key features include 12-bit resolution, 40 Msps sampling per channel, simultaneous sampling across all 8 channels without an external T/H, integrated input T/H amplifiers with adjustable input range, a low-jitter LVDS serial data interface that reduces pin count on the host board, and per-channel gain and offset calibration. The MAX19526EXE+T is specified over the -40 °C to +85 °C extended industrial temperature range, meeting the requirements of bedside medical imaging equipment and outdoor industrial instrumentation.
The device uses a switched-capacitor pipeline core preceded by an input buffer and track-and-hold, followed by a digital error-correction block. An internal reference simplifies the analog supply chain; designers may bypass it to use an external low-noise reference for the highest absolute-accuracy applications. The serial LVDS output reduces board-routing complexity and EMI compared to parallel CMOS ADCs in the same class.
Typical applications include multichannel medical ultrasound receivers, phased-array beamforming front-ends, industrial vibration and acoustic analysis, and multi-channel data-acquisition cards for test and measurement. The low power budget allows portable cart-based ultrasound designs to operate from battery packs with active cooling, while the LVDS interface simplifies connection to FPGAs such as Xilinx Spartan-6 or Altera Cyclone IV.
When designing with the MAX19526EXE+T, decouple AVDD and DVDD rails separately with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin, and provide a solid ground plane under the TFBGA footprint to control the LVDS return currents. Designers should also confirm that the FPGA clock-data-recovery block can tolerate the inter-channel skew budget the ADC introduces when all eight channels are sampled simultaneously.
Bộ thay thế dễ dàng lắp đặt cho MAX19526EXE+T — 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 MAX19526EXE+T (cùng hình factor và footprint) — khác nhau ở Architecture, Data Interface, Input Type, Mounting Type, Packaging.
MAX19526EXE+
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Xem tài liệu →MAX19526EXE
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MAX19526EXE+T-ND
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MAX19526EXE+T Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bit |
| Number of Channels | 8 |
| Tỷ lệ lấy mẫu | 40 Msps |
| Data Interface | Serial LVDS |
| Hộp | 144-ball TFBGA |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Cấp độ độ ẩm nhạy cảm (MSL) | 1 (Unlimited) |
| Nhiệt độ hoạt động | -40 °C to +85 °C |
| Architecture | Pipeline |
| Sampling Mode | Simultaneous sampling across 8 channels |
| Input Type | Differential, with integrated T/H |
| Reference | Internal or external |
| Trạng thái RoHS | Compliant |
| Base Part Number | MAX19526 |
Hướng dẫn cấu hình chân MAX19526EXE+T 144-ball tfbga
Cấu hình chân cho MAX19526EXE+T (144-ball tfbga gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho MAX19526EXE+T.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MAX19526EXE+T phù hợp cho 6 Áp dụngs: Multichannel Medical Ultrasound Receivers, Phased-Array Beamforming Front-Ends, Industrial Vibration and Acoustic Analysis, High-Channel-Count Data Acquisition Cards, Communications Baseband Receivers, Multi-Channel Sensor Signal Conditioning.
Multichannel Medical Ultrasound Receivers
The MAX19526EXE+T's 8 simultaneously-sampling 12-bit channels at 40 Msps and integrated T/H amplifiers make it an excellent front-end for cart-based and handheld ultrasound systems. In a typical 64-element probe, eight MAX19526EXE+T devices replace sixteen discrete ADC channels plus external T/H, reducing PCB area by roughly 5x and inter-channel skew to the picosecond level required for coherent beamforming. The serial LVDS output minimizes EMI inside the probe handle, where switching noise would otherwise couple into the receive signal chain. Designers pair the ADC with a Xilinx Spartan-6 or Altera Cyclone IV FPGA for the beamformer DSP and supply the AVDD rail with a low-noise LDO such as the MAX19526's companion power solution. Per the Analog Devices product page, this is the device's flagship use case.
Được đề xuất
Phased-Array Beamforming Front-Ends
Phased-array radar, sonar, and ultrasound systems require tightly synchronized ADC channels to form accurate beams. The MAX19526EXE+T samples all 8 inputs on the same clock edge, eliminating the inter-channel timing mismatch that would otherwise distort the beam pattern. Its 40 Msps per channel rate supports IF bandwidths up to 20 MHz, sufficient for narrow-band radar and acoustic imaging applications. The 144-ball TFBGA footprint allows dense placement close to the antenna elements, keeping analog trace lengths short. According to the MAX19526 datasheet, the LVDS serial interface reduces the digital pin count from ~96 (parallel CMOS) to roughly 12 differential pairs, simplifying PCB routing through the array housing.
Được đề xuất
Industrial Vibration and Acoustic Analysis
Multi-axis vibration monitoring and acoustic-emission testing demand simultaneous sampling of 8 or more channels to capture transient events without aliasing. The MAX19526EXE+T's 8 channels at 40 Msps provide 320 megasamples per second of aggregate throughput, enough to digitize accelerometer outputs across a wide frequency band with sub-microsecond channel-to-channel skew. The -40 °C to +85 °C operating range covers outdoor machinery enclosures and factory floors. Designers commonly pair the ADC with industrial-grade FPGAs and stream the LVDS data over fiber or copper to a central analyzer. Per the analog.com MAX19526 product page, this is a primary industrial use case alongside medical imaging.
Được đề xuất
High-Channel-Count Data Acquisition Cards
Test and measurement data acquisition cards built around the MAX19526EXE+T can pack up to 64 channels into a single PXI or PCIe slot by cascading eight MAX19526EXE+T devices per card. The 12-bit resolution and 40 Msps per channel suit sonar-recording, sonar-research, and high-speed digitizer applications where channel count dominates cost. The serial LVDS output simplifies the backplane connector pin count, and the integrated per-channel calibration eliminates the need for manual gain trim. According to the manufacturer datasheet on analog.com, designers should plan 0.1 µF ceramic decoupling on every AVDD pin and a continuous ground plane under the TFBGA footprint.
Được đề xuất
Communications Baseband Receivers
Multi-antenna baseband receivers for small-cell and distributed-radio systems need compact, low-power ADCs with high channel density. The MAX19526EXE+T's 8 channels at 40 Msps cover the immediate IF bandwidth of LTE, 5G NR, and proprietary narrow-band waveforms, while the serial LVDS interface eases the routing bottleneck to a baseband FPGA or SoC. The low per-channel power is critical for tower-mounted and weatherized radio heads. Per the Analog Devices MAX19526 product page, the device is also commonly used in software-defined radio (SDR) prototypes where 8 coherent channels are needed for direction finding or MIMO research.
Được đề xuất
Multi-Channel Sensor Signal Conditioning
Industrial sensor systems that aggregate many piezoelectric, strain-gauge, or photo-detector channels benefit from the MAX19526EXE+T's simultaneous sampling and integrated T/H. Eight differential input channels let the designer digitize a full Wheatstone-bridge array or a multi-photodiode spectroscopy head without external conditioning amplifiers. The -40 °C to +85 °C temperature grade supports outdoor and process-control environments. Per the MAX19526 datasheet, the internal reference can be replaced with an external low-noise reference to push absolute accuracy for precision metrology applications such as chromatograph or mass-spec detectors.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MAX19526EXE+T — 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 | MAX19526EXE+ | MAX19526EXE | MAX19526EXE+T-ND |
|---|---|---|---|---|
| Brand | Analog Devices (formerly Maxim Integrated) | Analog Devices (formerly Maxim Integrated) | Analog Devices (formerly Maxim Integrated) | Analog Devices (formerly Maxim Integrated) |
| Package | 144-ball TFBGA | 144-ball TFBGA (same) | 144-ball TFBGA (same) | 144-ball TFBGA (same) |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit |
| Number of Channels | 8 | 8 | 8 | 8 |
| Sampling Rate | 40 Msps | 40 Msps | 40 Msps | 40 Msps |
| Data Interface | Serial LVDS | Serial LVDS | Serial LVDS | Serial LVDS |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Packaging (Shipping Carrier) | Tape & Reel (TR) | Tube | Tray | Tape & Reel (DigiKey cut) |
| MSL Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant |
Bảo phân biệt quan trọng
- 8 simultaneous-sampling channels in a single 144-ball TFBGA (vsDiscrete single-channel 12-bit 40 Msps ADCs)
- Ultra-low per-channel power for a 40 Msps pipeline ADC (vsHigher-power 12-bit 40 Msps ADCs)
- Serial LVDS output instead of parallel CMOS (vsParallel-CMOS 12-bit ADC of similar speed)
Ghi chú thiết kế
Decouple AVDD and DVDD rails separately with 0.1 µF ceramic capacitors placed within 5 mm of each supply pin. According to the MAX19526 datasheet on analog.com, the device draws clean analog current; a low-noise LDO upstream of AVDD (such as a member of the MAX19526EXE+T reference power tree) suppresses switching-noise injection from any upstream DC-DC converter. Use a star-ground topology with the AGND/DGND separation at the ADC ground pin.
The 144-ball TFBGA package requires a continuous ground plane on the layer directly beneath the BGA to control LVDS return currents and reduce crosstalk between the eight analog input channels. Place input traces on the top side with matched lengths within each channel pair to preserve the simultaneous-sampling timing budget, and route the LVDS pairs as tightly coupled 100 Ω differential traces. Per the manufacturer pinout diagram on analog.com, AVDD balls are distributed around the perimeter for symmetric decoupling access.
Drive the ADC clock with a low-jitter (< 1 ps RMS) differential source to meet the SNR spec at 40 Msps; any clock jitter directly converts to aperture uncertainty and degrades SNR by 20·log10(2π·fin·tjitter). According to the MAX19526 datasheet on analog.com, the LVDS serial output introduces a deterministic inter-channel skew that must be calibrated out in the receiving FPGA IDDR/ISERDES block to preserve coherent beamforming.
Do not use the internal reference in high-accuracy metrology applications - drift over temperature will exceed the budget. Per the MAX19526 datasheet, an external low-noise reference such as the MAX6126 is recommended for absolute-accuracy uses. Also confirm that the host FPGA supports the MAX19526EXE+T's LVDS data-rate and DDR clocking scheme before layout; older FPGAs may not have the required ISERDES width.
Thông tin tuân thủ
RoHS and lead-free status per the manufacturer product page. Halogen-free status not explicitly stated in the verified web data. The MAX19526EXE+T is a commercial/industrial part and is not AEC-Q100 qualified for automotive use.
