MPC506AU/1K - 16:1 Analog Multiplexer | Texas Instruments
Référence : MPC506AU/1K ✓ ActifMPC506AU/1K Présentation
An analog multiplexer is a switching device that routes one of several analog inputs to a common output. The broader hierarchy is analog multiplexer → analog switch → signal-routing IC → semiconductor. This distinction is important because the MPC506AU/1K supports multiple single-ended channels, whereas a multiplexer with fewer channels or a differential architecture may not be interchangeable without changing the system architecture.
The most prominent device features are 16:1 channel selection, a 1.5 kΩ on-resistance, a ±15 V analog signal range, and analog overvoltage protection. The overvoltage-protection architecture allows an analog input to exceed a supply voltage without damaging the device or disturbing other channels. Break-before-make switching reduces the interval in which two channels are connected together, helping prevent unintended signal transfer during address transitions.
Internally, the device uses CMOS switching structures controlled by digital select and enable logic. Its standby power consumption is listed as 7.5 mW typical in the available MPC506 documentation. The protected signal path is intended to preserve signal fidelity when an external node experiences excessive voltage, while the 16-channel arrangement reduces the number of external routing switches required in measurement and control systems.
Typical applications include automated test equipment, data acquisition systems, instrumentation, industrial control, signal routing, and analog measurement front ends. The 16 selectable inputs allow one measurement chain to interrogate multiple sensors or conditioned analog sources sequentially. Designers must still account for channel resistance, switching transients, input loading, address timing, and the limits of the protected input network when establishing accuracy and bandwidth targets.
A principal design consideration is off-state isolation. A multiplexer does not create an ideal disconnect, so source impedance, capacitance, leakage, crosstalk, and the characteristics of the selected channel can influence settling time and measurement accuracy. The source impedance connected to each input should therefore be evaluated together with the mux resistance rather than in isolation.
This page combines verified manufacturer and distributor information, complete pinout availability status, practical application guidance, and a strict drop-in assessment. It distinguishes electrically compatible ordering variants from unsupported cross-package or redesign-only alternatives so engineers can make a defensible replacement decision.
Alternatives de remplacement direct pour MPC506AU/1K — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MPC506AU/1K (même facteur de forme et même empreinte) — différant par Analog Overvoltage Protection, Analog Signal Range, Channel Interaction During Overvoltage, Multiplexer Configuration, Package.
MPC506AUG4
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →MPC506AU/1KG4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MPC506AU
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →MPC506AU/1K Spécifications
| Multiplexer Configuration | 16:1, single-ended |
| Number of Channels | 16 channels |
| On-Resistance | 1.5 kΩ |
| Analog Signal Range | ±15 V |
| Tension d'alimentation | 16 V |
| Standby Power | 7.5 mW typical |
| Analog Overvoltage Protection | Yes |
| Channel Interaction During Overvoltage | None |
| Switching Sequence | Break-before-make |
| True Second Source | Yes |
| Boîtier | 28-pin SOIC |
| Type de montage | Surface mount |
| Temperature Grade | Industrial |
| Terminal Count | 28 terminals |
| Package Shape | Rectangular |
Guide de configuration des broches du MPC506AU/1K rectangular
Configuration des broches du MPC506AU/1K (boîtier rectangular). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour MPC506AU/1K.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MPC506AU/1K convient pour 6 applications: Automated Test Equipment, Data Acquisition Systems, Industrial Sensor Multiplexing, Instrumentation Signal Routing, Process Control Signal Selection, Analog Communication Routing.
Automated Test Equipment
The MPC506AU/1K is well suited to automated test systems that use one measurement channel to interrogate as many as 16 single-ended sources. Its 16:1 architecture reduces the number of relays or external routing switches required around a common instrument input, while the 1.5 kΩ on-resistance can be acceptable when the connected source and instrument present a substantially higher impedance. The ±15 V signal range covers many conditioned industrial and analog test signals. Break-before-make operation also helps prevent two test points from being connected together during address transitions. Before finalizing the design, verify leakage, settling time, channel capacitance, overvoltage limits, and the accuracy contributed by each source impedance.
Recommandé
Data Acquisition Systems
MPC506AU/1K can consolidate 16 single-ended analog inputs into one shared acquisition path, making it useful in compact data-acquisition equipment where separate front-end switches would consume excessive board area. The 1.5 kΩ on-resistance should be included in the impedance budget for sensor and amplifier inputs, especially when cable capacitance requires additional settling time. Its analog overvoltage protection helps isolate a selected channel when an external input exceeds the normal range, while the absence of channel interaction is valuable when other channels carry valid measurements. System designers should verify the complete datasheet electrical limits, especially when the source impedance is low or the measured signals require high absolute accuracy.
Recommandé
Industrial Sensor Multiplexing
The 16-channel single-ended configuration of MPC506AU/1K allows a single industrial controller or analog-to-digital conversion channel to monitor multiple conditioned sensor outputs sequentially. Its ±15 V analog signal range is relevant to industrial interfaces operating within that envelope, and the protected input architecture helps maintain behavior if a field-wired node is driven above the expected level. The 1.5 kΩ on-resistance must be weighed against the sensor output impedance and the input network connected after the mux. Engineers should also check common-mode range, noise, sampling time, settling behavior, and grounding so that switching does not obscure the small differences being measured.
Recommandé
Instrumentation Signal Routing
MPC506AU/1K is applicable in modular instrumentation where several external ranges or measurement nodes must be routed to one precision signal-conditioning path. A 16:1 mux provides channel density without requiring 16 separate amplifiers, provided the selected switch resistance and leakage are compatible with the required accuracy. The break-before-make characteristic reduces accidental overlap during source selection, while overvoltage protection improves robustness when the instrument is connected to an unexpected external voltage. The design should include impedance matching, adequate settling time, and checks for offset, crosstalk, and switching transients. The 28-pin SOIC package supports compact surface-mount assembly but requires careful layout around sensitive analog routing.
Recommandé
Process Control Signal Selection
MPC506AU/1K can route multiple process-control feedback signals to a common controller input, reducing the analog switching hardware needed in a multi-loop industrial panel. Its 16 single-ended channels are appropriate when the control system uses shared-ground voltage signals, and the ±15 V range covers many process instrumentation signals. The 1.5 kΩ on-resistance should be checked against the impedance of transducers and controller inputs to avoid gain errors. Overvoltage protection is useful for field-wired systems, but it does not replace correctly scaled surge and transient protection. Production designs should verify industrial-grade ordering requirements, operating temperature, isolation strategy, and behavior during startup or fault conditions.
Recommandé
Analog Communication Routing
MPC506AU/1K can serve as a general-purpose analog routing element in communication and monitoring equipment where one of 16 single-ended sources must be selected for further processing. The shared output enables a common receiver, amplifier, or detector to be reused across multiple inputs, which can simplify analog architecture. Because the specified on-resistance is 1.5 kΩ, the application is generally more appropriate for higher-impedance sensing paths than for low-impedance RF distribution or high-current loads. Break-before-make switching helps avoid coupling unrelated channels during selection changes. Designers should evaluate bandwidth, capacitance, insertion loss, crosstalk, and signal integrity for the particular operating frequencies rather than relying only on the DC on-resistance.
Recommandé
Données de référence d'ingénierie pour MPC506AU/1K — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MPC506AUG4 | MPC506AU/1KG4 | MPC506AU |
|---|---|---|---|---|
| Package | 28-pin SOIC | 28-pin SOIC | 28-pin SOIC | 28-pin SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Multiplexer Configuration | 16:1, single-ended | 16:1, single-ended | 16:1, single-ended | 16:1, single-ended |
| Number of Channels | 16 channels | 16 channels | 16 channels | 16 channels |
| On-Resistance | 1.5 kΩ | 1.5 kΩ | 1.5 kΩ | 1.5 kΩ |
| Analog Signal Range | ±15 V | ±15 V | ±15 V | ±15 V |
| Supply Voltage | 16 V | 16 V | 16 V | 16 V |
| Standby Power | 7.5 mW typical | 7.5 mW typical | 7.5 mW typical | 7.5 mW typical |
| Analog Overvoltage Protection | Yes | Yes | Yes | Yes |
| Switching Sequence | Break-before-make | Break-before-make | Break-before-make | Break-before-make |
Principaux différenciateurs
- Protected 16-channel analog signal path (vs MPC506AU)
- Compact 16:1 routing density (vs MPC506AUG4)
- Break-before-make channel selection (vs MPC506AU/1KG4)
Notes de conception
Include the 1.5 kΩ on-resistance in the complete source-impedance calculation and add the selected channel’s capacitance when determining settling time. A high-impedance amplifier may tolerate the switch resistance with little DC error, while a lower-impedance source can produce measurable attenuation. Verify the resulting divider ratio against the measurement accuracy budget and allow sufficient acquisition time after each address transition.
Route the 16 analog inputs and the common output as compact, guarded traces, and keep the mux close to the source and destination circuitry to minimize parasitic capacitance and pickup. Connect the device ground pins using a low-impedance plane rather than long return paths through the analog signal area. Although the supplied excerpts do not include a manufacturer layout drawing, the pin names and pinout must be checked in the official MPC506 data sheet before making the PCB layout.
Do not treat the analog overvoltage-protection statement as unlimited fault tolerance. Confirm the absolute input-voltage limits, maximum input current, behavior during power removal, and supply sequencing requirements from the manufacturer data sheet. Also avoid assuming that break-before-make eliminates every transient: source impedance, capacitance, and adjacent-channel voltage can still create a switching transient that must remain within the downstream converter’s input range.
Informations de conformité
The supplied verified excerpts identify an industrial temperature grade but do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. Compliance fields remain unknown rather than being inferred from general industry practice.