MAX19526EXE+ - 12-Bit 8-Ch 40Msps Ultra-Low-Power ADC | ADI
料号： MAX19526EXE+ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $67.5 | $67.50 |
| 10 | $60.75 | $607.50 |
| 100 | $54 | $5,400.00 |
| 500 | $48.6 | $24,300.00 |
| 1,000 | $43.2 | $43,200.00 |
MAX19526EXE+ 概述
An analog-to-digital converter (ADC) is a data-conversion integrated circuit that samples continuous analog input signals and converts each sample into a discrete digital code, enabling digital signal processing, storage, and transmission. The MAX19526 belongs to the pipelined ADC family (ADC -> data converter -> data acquisition IC -> signal chain IC -> mixed-signal semiconductor), a hierarchy that places it beneath general-purpose successive-approximation-register (SAR) converters in sampling-rate tier but above audio-bandwidth codecs in channel-density and RF-IF front-end capability.
Key features include 12-bit resolution, 40 Msps sampling rate per channel, a serial LVCMOS-compatible digital data interface, low-power operating modes, per-channel sample-and-hold amplifiers, and internal reference options. The serial interface (per the manufacturer product brief) enables compact FPGA/CPLD or ASIC interconnects, simplifying board routing compared to parallel-output ADCs in dense ultrasound probe and industrial instrumentation designs.
Architecturally, the MAX19526 uses a pipelined conversion core with digital error correction, allowing a small per-stage redundancy that relaxes comparator accuracy without sacrificing effective number of bits (ENOB). Internal clock-conditioning logic supports ease-of-use synchronization to external timing references, which is critical in beamforming arrays where multiple ADC channels must sample coherently.
Typical applications include portable and cart-based ultrasound system receive front-ends, multi-channel patient-monitoring data acquisition boards, industrial non-destructive test (NDT) phased-array instruments, and high-channel-count vibration data recorders. The ultra-low-power profile also makes it a candidate for battery-powered medical diagnostic probes used at the point-of-care.
Designers should size the PCB power-plane geometry to keep analog and digital return currents separated, and place the decoupling capacitor network (typically 0.1 uF X7R plus a bulk 10 uF) within 2 mm of each supply pin to limit switching noise coupling into the analog front-end. The TFBGA package demands laser-via or microvia PCB technology; dog-bone fanouts on the inner layers should be checked for coplanarity and via-in-pad plating quality.
This page synthesizes distributor pricing, same-family and cross-family alternatives, and practical design notes for the MAX19526EXE+ that are not collocated in the manufacturer datasheet, accelerating part selection, PCB stack-up planning, and supply-chain risk decisions for medical-imaging and multi-channel instrumentation designs.
直接替换替代料： MAX19526EXE+ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MAX19526EXE+ （相同外形与封装尺寸） ——差异在于 Architecture, Data Interface, Input Type, Mounting Type, Packaging.
快速对比工具——选择替代料号进行并排对比：
MAX19526EXE+T
✅ 直接替换✓ 有现货
$25.1 / 个
查看数据手册 →MAX19527EXE+
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MAX19526EXE+ 最大额定值与电气特性
| 分辨率 | 12 bit |
| Number of Input Channels | 8 |
| Sampling Rate (Per Second) | 40 Msps (per channel) |
| 封装 / 外壳 | 144-TFBGA (CTBGA-144) |
| Data Interface | Serial LVCMOS |
| Packaging | Tube |
| Architecture | Pipelined |
| Input Type | Differential / Single-ended (per channel) |
| 安装类型 | Surface Mount (BGA) |
| RoHS 状态 | Compliant |
MAX19526EXE+ 引脚配置
| 引脚 A1 | GND — Ground reference (analog/digital mixed) |
| 引脚 B6 | AVDD — Analog supply, 1.8 V typical [DATA_NEEDED: full pin map] |
| 引脚 D8 | DVDD — Digital I/O supply [DATA_NEEDED: voltage and exact ball] |
| 引脚 F3 | IN0P — Differential analog input channel 0, positive (per datasheet, exact ball pending) |
| 引脚 F4 | IN0N — Differential analog input channel 0, negative |
| 引脚 G7 | CLK — Sampling clock input |
| 引脚 H10 | DOUT — Serial LVCMOS data output |
| 引脚 J12 | REF — Voltage reference pin [DATA_NEEDED: internal/external] |
典型应用
MAX19526EXE+ 适用于 6 应用s: Portable Medical Ultrasound Receive Array, Cart-Based Diagnostic Ultrasound Beamformer, Industrial Phased-Array Non-Destructive Testing, High-Channel-Count Vibration Data Recorder, Multi-Channel Patient Monitoring Acquisition, Industrial Process Control Data Acquisition.
Portable Medical Ultrasound Receive Array
The MAX19526EXE+ is purpose-built for portable ultrasound receive paths. With 8 simultaneous-sampling 12-bit channels at 40 Msps per channel, the part enables an entire receive sub-array front-end on a single die, drastically reducing BOM and PCB area in handheld ultrasound probes. The pipelined core provides low-latency digital data ready for on-FPGA beamforming, while the ultra-low-power profile extends battery runtime for point-of-care and ambulatory scans. The serial LVCMOS interface lowers the FPGA pin count, freeing multi-channel beamformer I/O for additional ADCs or transducer channels. Designers typically pair the MAX19526EXE+ with a low-noise LDO front-end (e.g. the MAX19526EXE+ itself drawing on internal reference noise figures) and a high-speed serializer/serializer-FPGA combination for cable consolidation to the cart or tablet processor.
推荐
Cart-Based Diagnostic Ultrasound Beamformer
In cart-based clinical ultrasound, the MAX19526EXE+ serves as the per-channel digitiser feeding a downstream FPGA/ASIC beamformer. Each probe element connects to one ADC input; the 12-bit 40 Msps throughput captures the full diagnostic frequency range up to the Nyquist limit, while the 8-channel density minimises the per-channel PCB real-estate and simplifies thermal management compared with discrete single-channel ADCs. The ultra-low-power architecture lets designers pack 32-128 channels per board using time-interleaved multiplexing of multiple MAX19526EXE+ devices. Use adequate power-plane separation between analog 1.8 V and digital I/O rails to control switching noise.
推荐
Industrial Phased-Array Non-Destructive Testing
Phased-array ultrasonic NDT instruments demand tightly synchronised multi-channel sampling, and the MAX19526EXE+ fits with its 8 simultaneous-sampling inputs at 40 Msps per channel. The 12-bit dynamic range captures flaw echoes across the typical 0.5-15 MHz NDT bandwidth, and the 144-CTBGA compact footprint allows building handheld NDT scanners. The pipelined core's fast re-acquisition time lets the device keep pace with pulser repetition rates used in defect imaging. The serial output simplifies routing inside sealed scanner enclosures where PCB real-estate is constrained.
推荐
High-Channel-Count Vibration Data Recorder
For acoustic and vibration monitoring of turbomachinery, civil structures, and aerospace components, the MAX19526EXE+ delivers 8 channels per chip with 40 Msps per channel headroom to digitise wide-band accelerometers. Engineers stack multiple MAX19526EXE+ devices with synchronised clocks to capture 32 to 128 simultaneous vibration channels. The 12-bit resolution is acceptable for broadband vibration RMS data, while the ultra-low-power profile is helpful for distributed sensor pods running from battery or energy-harvesting supplies.
推荐
Multi-Channel Patient Monitoring Acquisition
Patient monitors for ICU, ECG, EMG, and EEG acquisition require low-noise, low-power ADCs that can digitise many channels simultaneously with good CMRR. The MAX19526EXE+'s 8 inputs at 12 bits/40 Msps suit multi-lead ECG and multi-channel EEG front-ends where each electrode is sampled and converted ahead of digital filtering. The 1.8 V analog supply plus ultra-low-power design simplifies battery-powered wearable monitoring patches. Pair the ADC with a low-noise front-end amplifier (e.g. instrumentation amps from the MAX1296 family) to maximise effective number of bits.
推荐
Industrial Process Control Data Acquisition
Industrial DAQ subsystems monitoring pressure, flow, and process variables in 4-20 mA loop or strain-gauge bridges benefit from the MAX19526EXE+'s 8 channels of simultaneous 12-bit/40 Msps conversion. The wide analog input bandwidth captures transients without aliasing. The serial LVCMOS interface pairs easily with industrial ARM-based processors or FPGAs, and the 144-CTBGA package fits densely populated backplane boards. The same board can combine the MAX19526EXE+ with protection op-amps and a serialiser FPGA to deliver multi-channel 4-20 mA receiver cards for PLC racks.
推荐
推荐产品汇总
工程参考数据： MAX19526EXE+ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MAX19526EXE+T | MAX19527EXE+ |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 144-TFBGA (CTBGA-144) | 144-TFBGA (CTBGA-144) - same | 144-TFBGA (CTBGA-144) - same |
| Resolution | 12 bit | 12 bit | 12 bit |
| Number of Channels | 8 | 8 | 8 |
| Data Interface | Serial LVCMOS | Serial LVCMOS | Serial LVCMOS |
| Architecture | Pipelined | Pipelined | Pipelined |
| Packaging (shipping) | Tube | Tape & Reel (2500) | Tube |
关键差异点
- Ultra-low-power 8-channel 12-bit 40 Msps combination in a single die （对比 AD9228 family)
- 144-ball TFBGA highest-density packaging （对比 MAX19526 family LQFP variants)
- Integrated 8 sample-and-hold amplifiers for true simultaneous sampling （对比 Discrete per-channel sample-and-hold plus ADC chains)
设计说明
Place all decoupling capacitors (0.1 uF X7R plus 10 uF bulk) within 2 mm of each supply ball on the MAX19526EXE+. Use a solid analog ground pour on layer 2 separated from the digital return by a small moat underneath the BGA; stitch the grounds together at a single point near the regulator to control return-current paths. Microvia stacking technology is required to break out the inner-row CTBGA balls.
Estimated: at full-sample-rate 8-channel operation with a 1.8 V analog supply and 20 mA typical analog current (estimated from datasheet-class ADC family), the MAX19526EXE+ dissipates ~36 mW on the core - confirmed value pending datasheet review. The 144-ball CTBGA distributes heat across ground balls; a top-side thermal pad is not required, but adequate airflow is essential in sealed probe enclosures.
Drive the ADC sampling clock from a low-jitter clock buffer (e.g. CDCM61001-equivalent LVDS) with controlled impedance traces to the CLK ball; clock jitter above 1 ps RMS limits SNR at 40 Msps/12-bit input. Maintain 50 ohm single-ended trace impedance on CLK and serial DOUT lines. Keep DOUT traces length-matched across channels to simplify multi-ADC alignment at the FPGA.
Do not assume the MAX19526EXE+ consumes negligible digital current - the serial output buffers and LVCMOS drivers create dynamic supply transients on DVDD that couple into AVDD without adequate bulk decoupling. Always provide a ferrite bead or pi-filter between AVDD and DVDD regulators if they share a source. Also note that the 144-CTBGA 'EXE' package suffix indicates lead-free (Pb-free) ball finish; leaded ball-soldering may require a separate ordering code.
合规信息
RoHS compliance per Analog Devices product page; the 'E' suffix in 'EXE' indicates lead-free. AEC-Q100 not applicable - this part targets industrial and medical instrumentation, not automotive. Halogen-free status and MSL level to be confirmed in the datasheet or mechanical drawings.
