MAX14805CCM+T - 16-Channel High-Voltage Switch | Maxim
料号： MAX14805CCM+T ✓ 量产中MAX14805CCM+T 概述
A high-voltage analog switch is an interface integrated circuit that routes high-impedance sensing signals under control of a low-voltage digital system. Within the electronics hierarchy, it belongs to the analog switch and multiplexer category, which sits below interface ICs and semiconductor devices. This makes the MAX14805 especially relevant to systems that must scan multiple piezoelectric transducers without introducing a separate switching mechanism for every channel.
The MAX14805/MAX14806 family is designed for medical ultrasound imaging and nondestructive test equipment. Its two eight-channel banks support multiplexed probe connections, while the 16 ohm on-resistance provides a defined signal-path resistance for the ultrasound receiver front end. The MAX14805CCM+ is identified by Analog Devices as a drop-in replacement for the Supertex HV2631, providing a documented migration path for designs using that legacy device.
The MAX14805CCM+T uses a 48-pin TQFP package with a 7 mm by 7 mm body size and is classified as an industrial-temperature-grade surface-mount component. Its extended -40°C to +85°C operating range accommodates the environmental requirements of medical imaging systems, industrial inspection equipment, and other continuously operated instruments. The part is also described as lead-free and RoHS compliant.
Typical applications include biplane and triplane medical ultrasound probe bank selection, nondestructive testing equipment, relay replacement, and other multichannel high-voltage signal-routing systems. The 16-channel architecture reduces the number of discrete switching paths required while preserving sequential access to multiple transducers or sensor groups.
PCB design should preserve the manufacturer's recommended land pattern, pin assignments, bypassing, and signal-routing conventions. Because this device switches high-voltage analog signals, keep input and output traces short, maintain separation from switching and digital timing traces, and account for the pinout table in the manufacturer datasheet when assigning connector and receiver-front-end nets.
This page combines the device's channel architecture, package characteristics, temperature range, compliance attributes, replacement information, application guidance, and practical comparison notes. It is intended to help engineers identify the correct switch for ultrasound front ends, verify footprint and pin compatibility, and plan a controlled transition to the MAX14805CCM+T.
直接替换替代料： MAX14805CCM+T ——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： MAX14805CCM+T （相同外形与封装尺寸） ——差异在于 Package.
MAX14806CCM+
✅ 直接替换联系询价
查看数据手册 →HV2631
✅ 直接替换📋 参考替代料（不在目录中）
MAX14805CCM+T 最大额定值与电气特性
| Product Type | 16-channel high-voltage analog switch IC |
| Channel Architecture | Two banks of 8 channels |
| Multiplexing Ratio | 8:1 |
| Number of Channels | 16 channels |
| On-Resistance | 16 ohm |
| Switch Type | SPST |
| Number of Terminals | 48 terminals |
| Package Code | QFP |
| 封装 | 48-pin TQFP, 7 mm x 7 mm |
| Package Shape | Square |
| 安装类型 | Surface mount |
| 工作温度范围 | -40°C to +85°C |
| Temperature Grade | Industrial |
| Lead-Free Status | Lead free |
| RoHS 状态 | RoHS compliant |
| Primary Application | Medical ultrasound imaging and nondestructive testing |
MAX14805CCM+T square 引脚配置指南
MAX14805CCM+T（square 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： MAX14805CCM+T.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MAX14805CCM+T 适用于 6 应用s: Medical Ultrasound Imaging, Biplane and Triplane Probe Selection, Industrial Nondestructive Testing, High-Voltage Relay Replacement, Multichannel Test and Measurement, Industrial Sensor Acquisition.
Medical Ultrasound Imaging
The MAX14805CCM+T suits medical ultrasound front ends that require controlled access to multiple piezoelectric transducer channels. Its 16 analog channels are arranged as two banks of eight, enabling 8:1 multiplexing for biplane and triplane probe-bank selection. The 16 ohm on-resistance gives the signal path a defined impedance, while the -40°C to +85°C industrial range supports continuously operated imaging equipment. Place the switch close to the transducer connectors and receiver input network, and use the datasheet pin assignments to separate control, supply, ground, and high-voltage analog nets.
推荐
Biplane and Triplane Probe Selection
The MAX14805CCM+T is designed for switching the multiple element banks used in biplane and triplane ultrasound probes. Its two independent eight-channel banks support an 8:1 multiplexing arrangement, reducing the number of high-voltage analog paths required in the receiver interface. The 16-channel device and 16 ohm on-resistance support predictable signal routing between transducers and downstream receiver electronics. Validate probe impedance, allowable switch voltage, and leakage against the exact transducer and imaging standard used in the system.
推荐
Industrial Nondestructive Testing
The MAX14805CCM+T can organize multichannel signal access in nondestructive test equipment that scans ultrasonic transducers or related sensors. Its two banks of eight channels provide 8:1 multiplexing, while the extended -40°C to +85°C rating suits industrial environments beyond a consumer-temperature range. The 48-pin TQFP package simplifies integration with complex receiver boards. During design-in, verify maximum signal amplitude, channel leakage, switching control timing, and whether the transducer requires bipolar or unipolar excitation.
推荐
High-Voltage Relay Replacement
The MAX14805CCM+T can replace multichannel electromechanical switching networks where an integrated high-voltage analog switch is appropriate. Instead of driving numerous relay coils, the device provides a 16-channel semiconductor routing network with a stated 16 ohm on-resistance. This can reduce mechanical wear and simplify multi-channel sequencing in test equipment. It is not a universal relay substitute: confirm contact isolation, current handling, voltage limits, switching speed, and fail-safe behavior before replacing a mechanical relay network.
推荐
Multichannel Test and Measurement
The MAX14805CCM+T is appropriate for test and measurement equipment that sequentially routes several high-impedance sensing inputs through a shared receiver. Two eight-channel banks allow an 8:1 selection structure, and the 16 ohm on-resistance provides a defined insertion impedance for instrumentation planning. The industrial temperature range supports use in factory, laboratory, and field diagnostic systems. Layout should minimize long analog traces, provide a continuous ground reference, and follow the manufacturer's recommended decoupling arrangement around the 48-pin TQFP footprint.
推荐
Industrial Sensor Acquisition
The MAX14805CCM+T can serve as the switching layer in a multichannel sensor-acquisition system where one receiver processes signals from several transducers. The 16-channel architecture consolidates routing into a single 48-pin TQFP device, while 8:1 bank organization supports structured scan sequencing. Its -40°C to +85°C operating range covers many industrial installations, and its lead-free, RoHS-compliant construction supports environmentally constrained production programs. Verify sensor excitation limits and grounding strategy before applying the device outside ultrasound front ends.
推荐
推荐产品汇总
工程参考数据： MAX14805CCM+T ——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 | MAX14806CCM+ | HV2631 |
|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Supertex |
| Package | 48-pin TQFP, 7 mm x 7 mm | 48-pin TQFP, 7 mm x 7 mm | 48-pin TQFP, 7 mm x 7 mm |
| Channel Count | 16 channels | 16 channels | 16 channels |
| Documented Drop-In Relationship | Drop-in replacement for Supertex HV2631 | Documented drop-in replacement for Supertex HV2731 | Legacy device replaced by MAX14805CCM+ |
关键差异点
- Explicitly documented migration path for the Supertex HV2631 （对比 HV2631)
- Two independently organized eight-channel banks （对比 HV2631)
- Industrial temperature rating （对比 MAX14806CCM+)
设计说明
Use the manufacturer datasheet to assign all 48 pins and reproduce the recommended 48-pin TQFP land pattern. Keep the 16 high-voltage analog-channel nets short and away from clocks, control signals, and switching edges. Provide a continuous ground reference beneath the device where the recommended footprint allows, and route connector-side and receiver-side nets according to the datasheet's application diagram rather than treating the package as a generic multiplexor.
Account for the stated 16 ohm on-resistance when setting input impedance, gain, and signal-loss budgets of the ultrasound receiver. If the switch drives a high-impedance amplifier, parasitic capacitance and leakage can become more important than DC resistance. Validate channel-to-channel isolation and off-state behavior with the actual source impedance, cable length, operating frequency, and transducer selected for the target system.
Do not treat the MAX14805CCM+ and MAX14806CCM+ as automatically interchangeable merely because they share a family and 48-pin TQFP package. Manufacturer cross-reference information associates MAX14805CCM+ with the Supertex HV2631 and MAX14806CCM+ with the Supertex HV2731. For an HV2631 migration, preserve the complete ordering suffix, verify control polarity and timing, and compare maximum signal voltage, off isolation, leakage, and channel behavior before production release.
合规信息
The MAX14805CCM+T is identified as lead-free and RoHS compliant. No REACH, halogen-free, conflict-minerals, or automotive qualification statement is established for this exact ordering suffix.
