MPC506 - 16-Ch ±15V CMOS Analog Multiplexer | Texas Instruments
N.º de pieza: MPC506 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $6.9 | $6,90 |
| 10 | $6.21 | $62,10 |
| 100 | $5.52 | $552,00 |
| 500 | $4.83 | $2.415,00 |
| 1.000 | $4.41 | $4.410,00 |
MPC506 Descripción general
An analog multiplexer is a semiconductor device that selects one of several analog input signals and routes it to a single output, controlled by digital address lines. It is a fundamental building block in data acquisition systems, enabling multiple sensors or signal sources to share a single ADC or amplifier. Multiplexers belong to the broader category of analog switches and are essential where signal routing, channel expansion, or test automation is required.
Key features include break-before-make switching to prevent channel interaction, low standby power of 7.5mW typical, and a 1.5kOhm on-resistance. The device supports a ±15V analog signal range and provides overvoltage protection without channel interaction, making it suitable for harsh industrial environments. CMOS fabrication ensures low power consumption and high input impedance.
Fabricated in CMOS technology, the MPC506 provides low leakage currents and high input impedance, preserving signal integrity. The internal 1kOhm series resistance protects the device from overvoltage conditions up to 70Vpp, eliminating external protection components in many applications. Break-before-make switching ensures the output is never momentarily connected to two inputs simultaneously, preventing signal corruption.
Typical applications include data acquisition systems, test and measurement equipment, industrial process control, and medical instrumentation. The MPC506 is ideal for routing multiple analog signals to a single ADC, expanding channel count in a measurement system, or implementing programmable gain amplifier configurations.
When designing with the MPC506, ensure analog input signals remain within the specified ±15V range to avoid damage. Drive the digital address lines with proper logic levels, and buffer the output if driving a capacitive load to maintain stability.
Alternativas directas para MPC506 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MPC507A
⚡ Mismo encapsulado📋 Alternativa de referencia (no en el catálogo)
ADG506A
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DG506A
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
HI-506A
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MPC506 Valores máximos y características eléctricas
| Función | 16:1 Single-Ended Analog Multiplexer |
| Number of Channels | 16 (single-ended) |
| Circuits per IC | 1 |
| On-Resistance | 1.5 kOhm |
| Analog Signal Range | ±15 V |
| Overvoltage Protection | 70 Vpp via internal 1 kOhm series resistance |
| Standby Power | 7.5 mW typ |
| Switching Behavior | Break-before-make |
| Channel Interaction | None during overvoltage |
| Technology | CMOS |
| Encapsulado | 28-SOIC |
| Tipo de montaje | Surface Mount |
| Second Source | True second source available |
| Pin Compatibility | MPC507A (8-channel differential variant) |
Configuración de pines de MPC506
| Pin 1 | EN — Enable input |
| Pin 2 | A2 — Address bit 2 |
| Pin 3 | A1 — Address bit 1 |
| Pin 4 | A0 — Address bit 0 |
| Pin 5 | A3 — Address bit 3 |
| Pin 6 | OUT — Common output |
| Pin 7 | GND — Ground |
| Pin 8-14 | S1-S7 — Analog input channels 1-7 |
| Pin 15 | V- (VEE) — Negative supply |
| Pin 16-23 | S8-S15 — Analog input channels 8-15 |
| Pin 24-27 | S0/S16 pins — Channel 0 and remaining channel inputs |
| Pin 28 | V+ (VDD) — Positive supply |
Aplicaciones típicas
MPC506 es adecuado para 6 aplicacións: Data Acquisition Systems, Test and Measurement Equipment, Industrial Process Control, Medical Instrumentation, Programmable Gain Amplifier Configurations, Multi-Sensor Routing in Automation Networks.
Data Acquisition Systems
The MPC506 fits data acquisition front ends where up to 16 sensor signals must share one ADC. Its break-before-make switching prevents channel-to-channel settling errors, and the ±15V signal range directly accommodates industrial transducer outputs without level shifting. Placed ahead of a buffer amplifier or ADC driver, the 1.5kOhm on-resistance introduces minimal error when the receiving stage input impedance is high. The 70Vpp overvoltage protection survives mis-wired field inputs - a common failure mode that destroys unprotected muxes - reducing field repair costs.
Recomendado
Test and Measurement Equipment
In automated test equipment and bench instruments, the MPC506 routes multiple test points to a single measurement chain. The break-before-make action guarantees the output never shorts two inputs during address transitions, preserving measurement integrity. Its 70Vpp input tolerance allows direct connection to unprotected test fixtures where operators may probe powered circuits. The CMOS standby consumption of 7.5mW typ keeps multi-channel scanning matrices power-efficient, and the 28-SOIC surface-mount package supports dense channel-count instrument boards.
Recomendado
Industrial Process Control
The MPC506 suits industrial process control panels scanning 4-20mA-derived voltages, thermocouple signals, and 0-10V transducer outputs. Its ±15V analog range covers standard industrial signal levels, and the internal overvoltage protection (70Vpp via 1kOhm series resistance) tolerates wiring faults common in factory environments without channel interaction, so one faulted channel does not corrupt adjacent readings. Break-before-make switching prevents measurement glitches during scan sequences feeding a shared ADC or PLC analog input card.
Recomendado
Medical Instrumentation
Medical diagnostic equipment, including patient-monitoring and analytical lab instruments, uses the MPC506 to multiplex multiple electrode or sensor channels into a single high-impedance amplifier chain. The CMOS process delivers very low leakage and high input impedance, which is essential for preserving microvolt-level biosignal fidelity. The ±15V signal range and protected inputs add robustness during patient-connected lead fault conditions. The 28-SOIC package allows compact multi-board channel expansion in cart-based and benchtop medical systems.
Recomendado
Programmable Gain Amplifier Configurations
The MPC506 can select different feedback taps or input scalings in programmable gain amplifier (PGA) front ends. By routing the 16 address-selectable inputs through resistive attenuator networks, designers implement software-controlled gain or attenuation steps. The 1.5kOhm on-resistance must be included in gain-error budgeting, or buffered. Break-before-make switching prevents momentary feedback-path shorts that would cause output spikes during gain changes, giving clean, glitch-free transitions between programmed gain settings.
Recomendado
Multi-Sensor Routing in Automation Networks
In distributed automation and smart-factory sensor nodes, the MPC506 expands a single analog input of a microcontroller or DAQ IC into 16 sensor channels, cutting ADC count and cost per node. Address lines driven directly from MCU GPIOs select channels under firmware control. Its overvoltage tolerance up to 70Vpp protects against accidental field-wiring mistakes on long cable runs, and the ±15V range accepts 24V-class industrial sensor outputs, letting one multiplexed front end serve heterogeneous sensor types in the same installation.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MPC506 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MPC507A | ADG506A | DG506A | CD74HC4067 |
|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-pin package options | 28-pin | 24-SOIC - different |
| Brand | Texas Instruments | Texas Instruments | Analog Devices | Renesas Electronics | Texas Instruments |
| Channel Configuration | 16:1 single-ended | 8-channel differential | 16:1 single-ended | 16:1 single-ended | 16:1 single-ended |
| On-Resistance | 1.5 kOhm | 1.5 kOhm | 280 Ohm | 1.5 kOhm class | 70 Ohm |
| Overvoltage Protection | 70 Vpp (internal 1 kOhm) | 70 Vpp | Yes (+/- up to 55V class) | Yes | None |
| Analog Signal Range | ±15 V | ±15 V | ±15 V class | ±15 V class | VCC range (2-6V) |
| Switching | Break-before-make | Break-before-make | Break-before-make | Break-before-make | Break-before-make |
| Drop-in Replacement | n/a | No (differential function) | Yes (verify suffix pinout) | Yes (verify suffix pinout) | No (different package) |
Diferenciadores clave
- Internal 70Vpp overvoltage protection (frente a CD74HC4067)
- True ±15V signal range (frente a CD74HC4067)
- Pin-compatible differential companion (frente a MPC507A)
Notas de diseño
Keep analog inputs within the specified ±15V signal range for normal operation; the internal 1kOhm series resistor only protects against transient overvoltage up to 70Vpp and cannot sustain continuous faults indefinitely. Do not substitute an unprotected HC/HCT4067 in MPC506 footprints expecting the same robustness - TI's E2E forum confirms the 4067 family has no overvoltage protection.
With 1.5kOhm on-resistance, buffer the mux output with a high-input-impedance op-amp (e.g., an OPA-class precision amplifier) so the switch resistance does not form an error-inducing divider with the ADC input. For capacitive loads, an isolation resistor between mux output and buffer prevents ringing. Allow settling time after each address transition since break-before-make briefly disconnects the output.
Use all three supply pins correctly (VDD, VEE, GND) and place 100nF ceramic decoupling directly at the supply pins on both rails. Keep analog channel traces away from address-line switching edges to prevent charge coupling into selected channels. Tie unused channel inputs to ground or a defined potential to limit crosstalk into the active channel.
Información de cumplimiento
Compliance varies by orderable suffix (MPC506AU vs legacy versions); verify on TI product page for the exact suffix.
