MAX14805CCM+T - 16-Channel High-Voltage Switch | Maxim
MPN： MAX14805CCM+T ✓ 啟用中MAX14805CCM+T 概覽
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.
直接替換替代品，適用於 MAX14805CCM+T — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MAX14805CCM+T （相同外形與佔位） — 差異在於 Package.
MAX14806CCM+
✅ 直接替換聯絡詢價
查看資料表 →HV2631
✅ 直接替換📋 參考替代品（不在目錄中）
MAX14805CCM+T 最大額定值與電氣特性
| 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 |
| 封裝 | 48-pin TQFP, 7 mm x 7 mm |
| Package Shape | Square |
| 安裝類型 | Surface mount |
| 工作溫度範圍 | -40°C to +85°C |
| Temperature Grade | Industrial |
| Lead-Free Status | Lead free |
| RoHS 狀態 | RoHS compliant |
| Primary Application | Medical ultrasound imaging and nondestructive testing |
MAX14805CCM+T square 腳位配置指南
MAX14805CCM+T（square 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： MAX14805CCM+T.
請參閱 資料表 以查看完整腳位配置。
典型應用
MAX14805CCM+T 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 MAX14805CCM+T — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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+ |
主要差異化特點
- Explicitly documented migration path for the Supertex HV2631 (對比HV2631)
- Two independently organized eight-channel banks (對比HV2631)
- Industrial temperature rating (對比MAX14806CCM+)
設計說明
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.
合規資訊
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.
