MAX14805ECM+ - 16-Channel High-Voltage Switch | Maxim
料号： MAX14805ECM+ ✓ 量产中MAX14805ECM+ 概述
An analog switch is an integrated semiconductor that routes an electrical signal between circuit nodes under digital control. In this product category, the MAX14805ECM+ belongs to the analog switch and switch matrix hierarchy, where multiple SPST switches are combined into a controlled routing network. Digital controls can place each switch into a conducting or nonconducting state, allowing one controller to manage external transducers, test points, or voltage domains without relying on separate mechanical relays.
The verified product information identifies the MAX14805 as a high-voltage analog switch and confirms its 16-channel architecture. The two-bank organization is important because each eight-switch bank has a dedicated control input. MAX14805ECM+ is identified specifically as a 48-LQFP 7 x 7 mm device, while the related MAX14806 option adds 40 kΩ bleed resistors on every switch terminal. The MAX14805ECM+ is the appropriate selection when independent high-voltage switching is required without the MAX14806 bleed-resistor feature.
The MAX14805 and MAX14806 family uses SPST switches rather than SPDT, DPDT, or multiplexer structures. This simplifies control logic but means that each switch provides only a connection path rather than selecting one of two destinations. System designers must therefore account for the off-state behavior, signal polarity, switch resistance, leakage, and control timing during PCB and firmware design. The related family is specified for an extended -40°C to +85°C temperature range according to the supplied datasheet information.
Primary applications include ultrasound imaging systems, where multiple transducer-element connections must be switched during transmit and receive phases. The same 16-channel structure can also support industrial test systems, high-voltage instrumentation, medical signal-routing equipment, and multichannel measurement setups. In each case, the useful feature is coordinated control of many physical switching paths from two compact digital inputs.
A critical design consideration is high-voltage layout safety. High-voltage traces must maintain the required clearance and creepage distances, while exposed package pads and test structures require appropriate insulation and guarding. Decoupling, control-logic levels, and the electrical limits of connected nodes must also be checked against the manufacturer datasheet before implementation.
This product page consolidates verified distributor availability, package information, family architecture, and cross-reference findings into an engineering-oriented guide. It also separates confirmed facts from parameters that still require verification in the manufacturer datasheet, helping engineers evaluate the MAX14805ECM+ without confusing it with the resistor-equipped MAX14806 variant.
直接替换替代料： MAX14805ECM+ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
MAX14806ECM+
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MAX14806CCM+
✅ 直接替换联系询价
查看数据手册 →MAX14805ECM
✅ 直接替换📋 参考替代料（不在目录中）
HV2731
✅ 直接替换📋 参考替代料（不在目录中）
MAX14805EUM+
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MAX14805ECM+ 最大额定值与电气特性
| Product Type | High-voltage analog switch IC |
| Number of Channels | 16 channels |
| Switch Configuration | Two banks of 8 SPST switches |
| Control Inputs | 2: DIN1 controls switches 0-7; DIN2 controls switches 8-15 |
| Switch Architecture | 8:1, 2-channel |
| 封装 | 48-LQFP, 7 x 7 mm |
| 引脚数量 | 48 pins |
| 安装类型 | Surface mount |
| 工作温度范围 | -40°C to +85°C |
MAX14805ECM+ 48-lqfp, 7 x 7 mm 引脚配置指南
MAX14805ECM+（48-lqfp, 7 x 7 mm 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： MAX14805ECM+.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MAX14805ECM+ 适用于 6 应用s: Ultrasound Imaging Systems, High-Voltage Test Systems, Medical Signal Routing, Industrial Multichannel Instrumentation, Piezoelectric Load Management, Programmable Signal-Routing Equipment.
Ultrasound Imaging Systems
The MAX14805ECM+ fits ultrasound imaging systems because it provides 16 SPST switching paths in one 48-LQFP 7 x 7 mm device, with DIN1 controlling channels 0 through 7 and DIN2 controlling channels 8 through 15. The verified distributor information explicitly identifies it as a 16-channel ultrasound switch IC. When driving piezoelectric transducer arrays, designers should compare it with the MAX14806 because the latter includes 40 kΩ bleed resistors intended to reduce voltage buildup in capacitive loads.
推荐
High-Voltage Test Systems
The MAX14805ECM+ can serve as a central routing network in multichannel high-voltage test equipment because its 16 SPST switches are organized into two independently controlled eight-channel banks. This allows a controller to connect selected external nodes under programmed logic control while retaining a compact 48-LQFP 7 x 7 mm footprint. The design must verify the maximum analog voltage, off leakage, and switch timing from the manufacturer datasheet before applying the device to a specific insulation or test-voltage level.
推荐
Medical Signal Routing
The MAX14805ECM+ is applicable to medical equipment that must route multiple controlled analog connections through a limited device footprint. Its two banks of eight SPST switches allow separate groups of channels to be enabled from DIN1 and DIN2, which can simplify sequencing and reduce the number of external control lines. For diagnostic or monitoring systems with capacitive transducers, the MAX14806 may be preferable because its documented 40 kΩ terminal bleed resistors help control voltage buildup, but electrical safety and leakage requirements remain application-specific.
推荐
Industrial Multichannel Instrumentation
The MAX14805ECM+ is suited to industrial instrumentation that requires repeatable selection among numerous analog measurement paths. Its 16 SPST channels fit within a 48-LQFP 7 x 7 mm package, while two dedicated controls separate the channels into manageable banks of eight. This architecture can support programmable test fixtures or shared measurement resources when the switched-node voltage and leakage limits meet the manufacturer requirements. PCB creepage, isolation, and protection-network design remain critical because the verified data does not provide a maximum voltage rating.
推荐
Piezoelectric Load Management
The MAX14805ECM+ can switch capacitive piezoelectric elements, but the MAX14806ECM+ is the more specialized choice when controlled discharge behavior is important. According to the supplied MAX14805/MAX14806 datasheet, the MAX14806 integrates 40 kΩ bleed resistors on every switch terminal to help reduce voltage buildup in loads such as piezoelectric elements. The MAX14805ECM+ remains useful where terminal bleed resistors would excessively load the circuit, provided the selected switch and leakage ratings satisfy the application.
推荐
Programmable Signal-Routing Equipment
The MAX14805ECM+ supports programmable signal-routing equipment by providing 16 SPST switches under two logic controls. DIN1 addresses switch 0 through switch 7, while DIN2 addresses switch 8 through switch 15, creating two clearly partitioned channel groups for controller sequencing. The compact 48-LQFP 7 x 7 mm package can simplify routing compared with sixteen discrete relays or switches. Designers must still account for off-state behavior, control thresholds, switching transients, and the unverified maximum operating voltage before finalizing the board.
推荐
推荐产品汇总
工程参考数据： MAX14805ECM+ ——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 | MAX14806ECM+ | MAX14806CCM+ | MAX14805ECM | HV2731 | MAX14805EUM+ |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Supertex | Maxim Integrated |
| Package | 48-LQFP (7 x 7 mm) | 48-LQFP (7 x 7 mm) | 48-LQFP (7 x 7 mm) | 48-LQFP (7 x 7 mm) | 48-TQFP (7 x 7 mm) | 48-LQFP (7 x 7 mm) |
| Channel Count | 16 | 16 | 16 | 16 | 16 | 16 |
关键差异点
- The MAX14805ECM+ provides 16 SPST channels without the MAX14806 terminal bleed resistors （对比 MAX14806ECM+)
- Two-bank control simplifies management of 16 channels （对比 HV2731)
- Compact 16-channel routing reduces board area （对比 MAX14805ECM)
- Extended-temperature family construction （对比 MAX14805EUM+)
设计说明
Treat every switched analog node as a potentially high-voltage conductor. Route the two eight-channel banks with adequate conductor spacing and prevent unintended coupling between adjacent switch terminals. Because the verified material does not state the maximum analog voltage, do not select a final creepage or clearance value from distributor summaries; obtain the voltage rating and package drawing from the manufacturer datasheet, then apply the applicable insulation requirement.
Do not confuse the MAX14805ECM+ with the MAX14806. The MAX14806 adds 40 kΩ bleed resistors on every terminal, which can alter impedance and discharge behavior. Although the family shares the 16-SPST architecture, that added component must be considered in signal-path design. Conversely, the absence of terminal bleed resistors makes the MAX14805ECM+ preferable only when the connected load does not require controlled discharge.
Separate the switch-control interface from sensitive analog routing and keep DIN1 and DIN2 traces away from high-impedance or high-voltage nodes where coupling could cause false switching. Use a ground reference appropriate for the complete switching system, and confirm logic thresholds, supply requirements, and control-input current from the datasheet before designing level-shifting circuitry. The verified source confirms the control functions but does not provide the electrical thresholds required for a complete interface design.
Account for charge injection, switch resistance, off leakage, and switching transient when the MAX14805ECM+ handles precision or high-impedance signals. These values were not included in the verified excerpts and therefore cannot be assigned here. Use the manufacturer timing and leakage curves to establish settling time and error budgets, especially in ultrasound systems where transmit/receive transitions can affect the first valid samples of each acquisition.
合规信息
The verified distributor and datasheet excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred.
