MPC506 - 16-Ch ±15V CMOS Analog Multiplexer | Texas Instruments
部品番号: MPC506 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 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 概要
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.
ドロップイン代替品: MPC506 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
MPC507A
⚡ 同一パッケージ📋 参考代替品（カタログ未掲載）
ADG506A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
DG506A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
HI-506A
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MPC506 最大定格＆電気的特性
| 機能 | 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 |
| パッケージ | 28-SOIC |
| 実装タイプ | Surface Mount |
| Second Source | True second source available |
| Pin Compatibility | MPC507A (8-channel differential variant) |
MPC506 ピン構成
| ピン 1 | EN — Enable input |
| ピン 2 | A2 — Address bit 2 |
| ピン 3 | A1 — Address bit 1 |
| ピン 4 | A0 — Address bit 0 |
| ピン 5 | A3 — Address bit 3 |
| ピン 6 | OUT — Common output |
| ピン 7 | GND — Ground |
| ピン 8-14 | S1-S7 — Analog input channels 1-7 |
| ピン 15 | V- (VEE) — Negative supply |
| ピン 16-23 | S8-S15 — Analog input channels 8-15 |
| ピン 24-27 | S0/S16 pins — Channel 0 and remaining channel inputs |
| ピン 28 | V+ (VDD) — Positive supply |
主な用途
MPC506 の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MPC506 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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) |
主な差別化要因
- Internal 70Vpp overvoltage protection （vs CD74HC4067)
- True ±15V signal range （vs CD74HC4067)
- Pin-compatible differential companion （vs MPC507A)
設計ノート
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.
コンプライアンス情報
Compliance varies by orderable suffix (MPC506AU vs legacy versions); verify on TI product page for the exact suffix.
