MPC506 - 16-Ch ±15V CMOS Analog Multiplexer | Texas Instruments
MPN: MPC506 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
Drop-in alternatives for MPC506 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPC507A
⚡ Same Package📋 Reference alternative (not in catalog)
ADG506A
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
DG506A
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
HI-506A
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
MPC506 Maximum Ratings & Electrical Characteristics
| Function | 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 |
| Package | 28-SOIC |
| Mounting Type | Surface Mount |
| Second Source | True second source available |
| Pin Compatibility | MPC507A (8-channel differential variant) |
MPC506 Pin Configuration
| 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 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
MPC506 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for MPC506 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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) |
| Standby Power | 7.5 mW typ | 7.5 mW typ | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| 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) |
Key Differentiators
- Internal 70Vpp overvoltage protection (vs CD74HC4067)
- True ±15V signal range (vs CD74HC4067)
- Pin-compatible differential companion (vs MPC507A)
Design Notes
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.
Compliance Information
Compliance varies by orderable suffix (MPC506AU vs legacy versions); verify on TI product page for the exact suffix.
