MPC509AUG4 - 4:1 CMOS Analog Multiplexer | Texas Instruments
料号： MPC509AUG4 ✓ 量产中MPC509AUG4 概述
An analog multiplexer is a semiconductor switch that connects one of several input terminals to a common output. The MPC509AUG4 belongs to the interface IC hierarchy because it controls signal routing between analog inputs and downstream measurement or conversion circuitry. Its differential 4-channel configuration reduces common-mode pickup and supports balanced systems, while the single-ended mode provides greater channel availability when the source signals are referenced to a common ground.
Key features include a 1.5 kOhm switch resistance, 70 Vpp analog overvoltage protection, ±15 V analog signal capability, and low standby power of 7.5 mW typical. Break-before-make operation is particularly useful when an input may exceed the active supply range because it prevents the transient from coupling directly into another selected channel. The CMOS implementation supports low-power signal-routing systems while maintaining bidirectional analog paths.
The MPC509AUG4 is implemented as two 4:1 switch circuits, enabling an 8:1 single-ended configuration or a 4:1 differential configuration when paired channels are connected appropriately. Break-before-make sequencing limits overlapping conduction during selection changes. The 70 Vpp protection capability concerns analog overvoltage tolerance and should not be interpreted as permission to exceed the device's specified supply-voltage or absolute-maximum limits.
Typical applications include multiplexed data acquisition, instrumentation, industrial control, battery or automotive test systems, communications equipment, and precision measurement platforms. In a measurement circuit, the device can reduce the number of analog front-end input channels presented to an ADC, while its differential mode helps preserve signal integrity in balanced sensor systems. Standby power of 7.5 mW typical is useful when power consumption must remain controlled between measurement operations.
PCB design should keep analog traces short and away from switching nodes and high-current return paths. Confirm the exact supply limits, control-logic levels, channel truth table, switch resistance variation, and package pin assignment in the manufacturer datasheet before layout release. Because the provided web data does not expose a complete pin list, designers must not infer pin assignments from distributor category labels.
This page consolidates verified distributor identity, functional configuration, package information, protection features, procurement links, and design cautions into an engineering-focused reference. It also distinguishes confirmed drop-in data from specifications that still require confirmation from the official manufacturer datasheet.
直接替换替代料： MPC509AUG4 ——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： MPC509AUG4 （相同外形与封装尺寸） ——差异在于 Channel Interaction During Overvoltage, Package, Product Type.
MPC509AUG4 规格参数
| Product Type | 4:1 analog multiplexer switch IC |
| Number of Circuits | 2 circuits |
| Switch Configuration | 4:1 |
| On-Resistance | 1.5 kOhm |
| Single-Ended Configuration | 8 channels |
| Differential Configuration | 4 channels |
| Analog Signal Range | ±15 V |
| Analog Overvoltage Protection | 70 Vpp |
| Standby Power | 7.5 mW typical |
| Switching Sequence | Break-before-make |
| Channel Interaction During Overvoltage | None |
| Technology | CMOS |
| 封装 | 16-pin SOIC |
| 安装类型 | Surface mount |
| RoHS 状态 | unknown |
| REACH Status | unknown |
MPC509AUG4 16-pin soic 引脚配置指南
MPC509AUG4（16-pin soic 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： MPC509AUG4.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MPC509AUG4 适用于 6 应用s: Industrial Multiplexed Data Acquisition, Precision Instrumentation Signal Routing, Automotive and Battery Test Systems, Communications and Distributed Control, Video and Imaging Control Paths, Audio and Low-Frequency Analog Routing.
Industrial Multiplexed Data Acquisition
The MPC509AUG4 fits multiplexed industrial data-acquisition systems that route several ±15 V analog inputs into a shared measurement channel. Its two 4:1 switch circuits can provide eight single-ended selections or four differential selections, reducing the number of front-end connections reaching an ADC. The 1.5 kOhm on-resistance must be included in source impedance and ADC settling calculations. Its 70 Vpp analog overvoltage protection can improve resilience to transient input excursions, while break-before-make operation prevents the protected input from coupling into another channel during selection changes.
推荐
Precision Instrumentation Signal Routing
The MPC509AUG4 is useful in precision instrumentation when multiple sensors or reference nodes must be routed to one measurement amplifier or converter. Differential 4-channel operation helps preserve common-mode rejection for balanced sensor signals, while 1.5 kOhm switch resistance contributes directly to loading and noise gain. The ±15 V analog range supports laboratory and process-control signals, and the 7.5 mW typical standby power can be useful in portable test equipment. Engineers should verify leakage, on-resistance matching, off-isolation, and switching time before setting the measurement bandwidth.
推荐
Automotive and Battery Test Systems
The MPC509AUG4 can serve as the protected signal selector in automotive electrical test systems that expose harness nodes to voltages above the normal analog range. Its 70 Vpp overvoltage protection, ±15 V specified signal range, and no-channel-interaction behavior improve robustness during fault or transient testing. The two 4:1 circuits support multiple battery or harness measurements without duplicating every analog switch. Designers must still distinguish protected analog inputs from the device's permissible supply voltages and absolute-maximum limits, and they should confirm whether the selected package variant meets the applicable automotive qualification requirements.
推荐
Communications and Distributed Control
The MPC509AUG4 is suitable for routing analog control or feedback signals in communications equipment and distributed-control modules where channel count must be expanded without adding many discrete switches. The 4:1 selection architecture supports two independently addressed switch circuits, and the 1.5 kOhm resistance is acceptable for many low-frequency feedback paths. Break-before-make operation keeps adjacent channels isolated during control transitions. For higher-bandwidth signals, however, off-isolation, capacitance, switching time, and channel-to-channel matching must be checked from the official datasheet; the provided data does not quantify those characteristics.
推荐
Video and Imaging Control Paths
The MPC509AUG4 can route low-frequency analog control, bias, or feedback signals in video and imaging equipment when several sources must share a downstream driver. Its single-ended 8-channel configuration increases routing flexibility, while the differential 4-channel configuration is useful for paired control signals. The 1.5 kOhm on-resistance makes it more appropriate for control paths than for high-frequency video multiplexing, where capacitance and bandwidth become decisive. The 70 Vpp protection rating can help isolate downstream circuitry from transient control-node excursions, provided the official absolute-maximum and supply limits are respected.
推荐
Audio and Low-Frequency Analog Routing
The MPC509AUG4 can route low-frequency audio-control, microphone-bias, or other moderate-impedance analog paths where channel selection is required. The differential 4-channel mode is attractive for balanced audio signals because it supports paired routing and can reduce common-mode pickup. The 1.5 kOhm on-resistance is the primary loading consideration when driving low-impedance audio inputs, so source impedance and amplifier bias must be evaluated together. The 7.5 mW typical standby power benefits low-duty-cycle equipment, while break-before-make switching helps prevent audible clicks when the mux changes channels.
推荐
推荐产品汇总
工程参考数据： MPC509AUG4 ——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 | MPC509AU |
|---|---|---|
| Package | 16-pin SOIC | 16-pin SOIC |
| Brand | Texas Instruments | Texas Instruments |
| Switch Configuration | Two 4:1 circuits | Two 4:1 circuits |
| On-Resistance | 1.5 kOhm | 1.5 kOhm |
| Single-Ended Configuration | 8 channels | 8 channels |
| Differential Configuration | 4 channels | 4 channels |
| Analog Signal Range | ±15 V | ±15 V |
| Analog Overvoltage Protection | 70 Vpp | 70 Vpp |
| Standby Power | 7.5 mW typical | 7.5 mW typical |
| Switching Sequence | Break-before-make | Break-before-make |
关键差异点
- Higher documented analog overvoltage tolerance （对比 MPC509AU)
- Supports protected 4:1 analog routing （对比 MPC509AU)
- Break-before-make switching reduces adjacent-channel disturbance （对比 MPC509AU)
设计说明
Treat the 1.5 kOhm on-resistance as part of the complete source impedance seen by the receiving amplifier. Calculate settling time with the capacitance of the following stage and verify the manufacturer's switching-time data before selecting the mux for higher-bandwidth signals. Use the differential 4-channel configuration for balanced sources so that common-mode pickup and channel imbalance are minimized.
Do not interpret the 70 Vpp analog overvoltage-protection figure as permission to exceed the MPC509AUG4's supply-voltage or absolute-maximum ratings. Apply the protection feature only within the conditions stated in the manufacturer datasheet. Because the verified data does not include the complete truth table or control thresholds, confirm address and enable polarity before connecting digital control signals.
Place the mux close to the analog source and receiving amplifier to minimize trace capacitance and susceptibility to coupling. Keep the ground return continuous beneath and around the device, separate analog routing from switching-power paths, and provide a low-impedance bypass connection for each supply pin according to the official application guidance. Avoid adding long breakout traces that carry unprotected analog signals.
The 7.5 mW typical standby power is useful in low-duty-cycle measurement systems, but total supply consumption also depends on the selected switches and control logic. Compare the operating state as well as standby consumption when the mux remains connected to a continuously biased source. Use current-budget calculations to confirm that the supply remains within its own regulation and thermal limits.
合规信息
The verified results do not explicitly provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for MPC509AUG4. AEC-Q100 is marked not_applicable because automotive qualification data was not provided, not because the component is explicitly excluded from automotive use.