MPC506AU - 16:1, 16V Analog Multiplexer | Texas Instruments
부품 번호: MPC506AU ✓ 활성MPC506AU 개요
An analog multiplexer is a semiconductor switching network that connects one selected input channel to a shared output. A single-ended analog multiplexer belongs to the broader analog switch hierarchy and connects to analog front ends, data acquisition systems, test equipment, industrial control, and instrumentation. The MPC506AU uses digital select and enable logic to control its analog signal path, allowing one measurement amplifier, converter, or input instrument to inspect multiple sensor or source channels.
Verified features include a ±15 V analog signal range, analog overvoltage protection, no channel interaction during overvoltage, break-before-make switching, and 7.5 mW typical standby power. The protection circuitry is intended to preserve signal fidelity when an analog input exceeds either power-supply voltage. Texas Instruments describes the MPC506A as a 16-channel single-ended multiplexer; the separately described MPC507A is an 8-channel differential multiplexer and is therefore not a functional drop-in substitute.
The 28-pin DW SOIC package supports surface-mount assembly, while its digital controls allow a controller to select channels in a sequential measurement system. The verified part detail lists a -40°C to 85°C operating-temperature range and a 16 V supply condition. Other switching timing, capacitance, leakage, channel-count logic, and absolute-maximum values are not present in the supplied result excerpts and must be checked in the manufacturer datasheet before final design release.
Typical uses include multiplexed sensor acquisition, automated test systems, programmable instrumentation, industrial measurement, and signal routing where multiple analog sources share one downstream converter. The key design consideration is preserving accuracy during channel transitions. Use the specified break-before-make behavior, observe address and enable setup timing from the datasheet, and account for the 1.5 kOhm on-resistance when calculating source-load attenuation or input-current requirements.
This product record combines the verified manufacturer and distributor descriptions with practical routing, switching, and signal-integrity guidance. It also separates true pin-compatible alternatives from related multiplexers that differ functionally, preventing a package-only match from being presented as an engineering drop-in replacement.
드롭인 대체품: MPC506AU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MPC506AU (동일 폼 팩터 및 풋프린트) — 차이점: Analog Signal Range, Mounting Type, Package.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청MPC506AU 사양
| Product Type | Single-ended CMOS analog multiplexer |
| Multiplexer Configuration | 16:1 |
| Number of Circuits | 1 circuit |
| Number of Channels | 16 channels |
| Power-Supply Voltage | 16 V |
| On-State Resistance | 1.5 kOhm |
| Analog Signal Range | -15 V to +15 V |
| Typical Standby Power | 7.5 mW |
| Analog Overvoltage Protection | Supported |
| Channel Interaction During Overvoltage | No channel interaction |
| Switching Behavior | Break-before-make |
| 동작 온도 범위 | -40°C to 85°C |
| 패키지 | 28-pin SOIC (DW) |
| 실장 유형 | Surface mount |
| Technology | CMOS |
MPC506AU 28-pin soic (dw) 핀 구성 가이드
MPC506AU(28-pin soic (dw) 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: MPC506AU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MPC506AU 적합 용도: 6 애플리케이션s: Multiplexed Sensor Acquisition, Automated Test Systems, Programmable Instrumentation, Industrial Control Signal Routing, Data-Acquisition Front Ends, Calibration and Reference Distribution.
Multiplexed Sensor Acquisition
The Texas Instruments MPC506AU fits systems that route up to 16 single-ended sensor outputs to one shared amplifier or converter. Its 16:1 configuration reduces repeated analog front-end hardware, while the verified 1.5 kOhm on-state resistance should be included in the source-loading and settling-time analysis. Use the device when the sensor bandwidth is modest and the downstream converter samples sequentially rather than requiring simultaneous acquisition. The ±15 V stated analog signal range can support bipolar industrial sensor signals, but common-mode limits and input protection must be checked. Route each input away from switching-current paths and confirm break-before-make behavior so adjacent sensor channels are not momentarily connected during address transitions.
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Automated Test Systems
The MPC506AU can share one analog measurement path among 16 DUT or test-stimulus connections in a compact automated test fixture. The 28-pin SOIC package supports conventional surface-mount assembly, while the 16 single-ended channels suit systems where each channel has a defined common reference. Break-before-make switching helps prevent unintended channel bridging during address changes, and the specified overvoltage behavior adds protection where test nodes may experience transients. The main design checks are source impedance, leakage, acquisition interval, and input capacitance. Keep relay or driver outputs away from sensitive mux traces, use solid ground references, and validate settling before interpreting each sample.
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Programmable Instrumentation
A 16:1 analog multiplexer is useful in programmable instruments that scan voltage sources, sensor returns, or calibration nodes through one front end. The MPC506AU offers 16 single-ended inputs, 1.5 kOhm on-state resistance, and a stated -40°C to 85°C operating range, making it relevant to industrial bench and rack equipment. Its break-before-make switching is useful when channel isolation matters during scans. However, the instrument accuracy specification should include switch resistance variation, leakage, capacitance, and settling rather than relying only on nominal resistance. Place the mux close to the acquisition circuitry, provide a low-impedance reference return, and schedule calibration to characterize the selected channel path.
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Industrial Control Signal Routing
The MPC506AU can route multiple bipolar control or monitoring signals into a common controller input in an industrial system. Its ±15 V analog signal range and overvoltage-protection description are useful when inputs originate from protected external circuitry, while the 16-channel structure limits duplicated switching hardware. Protection ratings and absolute-maximum conditions must still be verified in the full datasheet, especially during transients or power-off states. Use isolation, clamping, and impedance limiting upstream rather than assuming the switch alone handles every fault condition. Firmware should insert settling delays and identify each selected address so the controller does not interpret a transition sample as process data.
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Data-Acquisition Front Ends
The MPC506AU is appropriate for a scanner-style data-acquisition front end when many slow or moderate-bandwidth inputs can be sampled sequentially. It provides 16 single-ended selections rather than eight differential pairs, so channel pairing and common-reference layout must match the sensor architecture. The 1.5 kOhm switch resistance favors high-impedance sources, while long PCB traces can add capacitance and increase settling requirements. Place the multiplexer near the ADC input and preserve a continuous ground plane beneath the analog routes. Engineers should derive the sample interval from verified switching, bandwidth, and settling data and should avoid using the component as a high-speed simultaneous sampler.
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Calibration and Reference Distribution
The MPC506AU can select several calibration or reference voltages and route them to a common measurement channel for gain and offset correction. Its 16 single-ended inputs make it suitable when calibration nodes share ground and do not require simultaneous observation. The stated overvoltage protection and break-before-make operation help isolate the selected reference during transitions, but thermal, leakage, and settling contributions must still be characterized. Place precision references on low-impedance nets, keep switching traces away from sensitive reference buffers, and verify each channel against the calibration sequence. If the instrument requires simultaneous reference comparison, an eight-channel differential multiplexer may be more appropriate.
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추천 제품 요약
엔지니어링 참조 데이터: MPC506AU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Package | 28-pin SOIC (DW) |
| Brand | Texas Instruments |
| Multiplexer Type | Single-ended analog multiplexer |
| Configuration | 16:1 |
| Channel Count | 16 single-ended channels |
| Power-Supply Voltage | 16 V |
| On-State Resistance | 1.5 kOhm |
| Analog Signal Range | -15 V to +15 V |
| Operating Temperature | -40°C to 85°C |
| Switching Behavior | Break-before-make |
설계 노트
Treat the 1.5 kOhm on-state resistance as part of the measurement-path impedance. Estimated: with a 100 kOhm source impedance, the divider formed by the source and switch resistance attenuates the selected signal by 100/(100+1.5), or approximately 1.49%, before amplifier or ADC input loading. Increase source impedance only after including switch leakage, capacitance, settling, and downstream input bias in the accuracy budget.
Place the MPC506AU close to the analog acquisition input and route all 16 channels as controlled-impedance traces over a continuous ground reference. Keep digital address and enable traces away from high-impedance sensor nodes to reduce capacitive coupling. Verify the SOIC land pattern and pin orientation against the official datasheet because the supplied evidence confirms the 28-pin DW package but does not provide the complete numbered pin table.
Do not substitute MPC507A, MPC508A, or MPC509A solely because they belong to the same product family. MPC507A is an 8-channel differential architecture, while the target is a 16-channel single-ended 16:1 device. Channel count and differential-versus-single-ended operation affect both the PCB and firmware. Confirm break-before-make address transitions and allow the selected channel to settle before sampling.
규정 준수 정보
The supplied verified snippets do not explicitly provide compliance or automotive-qualification statements for the exact MPC506AU orderable MPN.
