MPC507AUG4 - 8:1 Differential Analog Multiplexer | Texas Instruments
MPN： MPC507AUG4 ✓ 啟用中MPC507AUG4 概覽
An analog multiplexer is a switching interface that connects one of several analog inputs to a shared output. The MPC507AUG4 operates in differential mode, using eight differential channel pairs rather than eight single-ended sources. This arrangement is useful when a measurement system must preserve the relationship between a positive and negative signal while selecting among multiple sensors, instrumentation inputs, or test points. In the component hierarchy, it is an analog switch IC, analog multiplexer, interface IC, and ultimately a semiconductor.
Key features include 70 VPP analog overvoltage protection, no channel interaction during overvoltage, break-before-make switching to minimize switch overlap, a -15 V to +15 V analog signal range, and 7.5 mW typical standby power. The 1.5 kOhm on-resistance listed by DigiKey identifies the switching element resistance used when selecting a channel. The overvoltage protection is particularly important in industrial and test systems where transient or unexpected input amplitudes can otherwise damage the signal path or disturb unselected channels.
Typical uses include multiplexed data acquisition, automated test equipment, instrumentation front ends, industrial sensor selection, and differential signal routing. Because the MPC507AUG4 accepts a wide bipolar analog range, it can reduce the need for separate upstream attenuation when inputs remain within the specified analog signal range. The 28-pin SOIC package is a surface-mount package suitable for conventional PCB assembly and automated production.
The key design consideration is that overvoltage protection does not replace correct supply sequencing or input-range validation. Keep all inputs within the stated analog range unless the system intentionally exercises the protection function, and observe the manufacturer timing and logic-level requirements for address and enable control. Verify the exact pin assignments in the manufacturer datasheet before layout because the supplied web results describe the device but do not publish a complete numbered pin table.
This page combines verified distributor specifications, manufacturer product information, cross-reference results, and practical selection guidance. It also distinguishes true pin-compatible drop-in options from functional equivalents that differ in channel architecture or pin assignment, helping engineers avoid PCB rework.
直接替換替代品，適用於 MPC507AUG4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MPC507AUG4 （相同外形與佔位） — 差異在於 Channel Interaction During Overvoltage, Multiplexer Configuration, Number of Channels, Package.
MPC507AU
✅ 直接替換📋 參考替代品（不在目錄中）
MPC507AU/1K
✅ 直接替換聯絡詢價
查看資料表 →MPC507AU/1K
✅ 直接替換聯絡詢價
查看資料表 →MPC507AUG4 規格
| Product Type | 8:1 differential analog multiplexer |
| Number of Channels | 8 differential input channels |
| Multiplexer Configuration | 8:1 |
| Maximum Analog Signal Voltage | ±15 V |
| Analog Overvoltage Protection | 70 VPP |
| On Resistance | 1.5 kOhm |
| Switching Mode | Break-before-make |
| Channel Interaction During Overvoltage | No channel interaction |
| Standby Power | 7.5 mW typical |
| Supply Voltage Range | 5 V to 22 V dual supply |
| Maximum Operating Temperature | 85 °C |
| 封裝 | 28-pin SOIC, 300 mil |
| 安裝類型 | Surface mount |
| RoHS 狀態 | RoHS compliant |
| Lead-Free Status | Lead free |
| REACH Status | REACH compliant |
| Conflict Minerals Status | Conflict free |
MPC507AUG4 28-pin soic, 300 mil 腳位配置指南
MPC507AUG4（28-pin soic, 300 mil 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： MPC507AUG4.
請參閱 資料表 以查看完整腳位配置。
典型應用
MPC507AUG4 適用於 6 應用s: Multiplexed Data-Acquisition Front End, Industrial Sensor Channel Selection, Automated Test Equipment Signal Routing, Bipolar Analog Instrumentation, High-Voltage Test Signal Multiplexing, Data Logging and Condition Monitoring.
Multiplexed Data-Acquisition Front End
The MPC507AUG4 suits measurement systems that must select one of eight differential inputs for a shared converter or instrument amplifier. Its -15 V to +15 V analog range accommodates bipolar sensor outputs, while the 70 VPP overvoltage protection helps prevent an unexpectedly large input from disturbing unselected channels. Break-before-make operation reduces switching overlap during channel changes. The design trade-off is that the 1.5 kOhm on resistance adds source impedance and should be checked against the acquisition system's input-impedance requirements.
推薦
Industrial Sensor Channel Selection
The MPC507AUG4 can route multiple industrial differential sensors into one processing chain, reducing duplicated amplifier and converter circuitry. The -15 V to +15 V range supports many industrial bipolar signals, and the no-channel-interaction feature during an overvoltage event helps preserve measurement integrity on other selected inputs. For long sensor wiring, provide external surge and EMI protection because the IC's 70 VPP rating describes the protected analog input, not a complete industrial surge-protection network.
推薦
Automated Test Equipment Signal Routing
The MPC507AUG4 is appropriate for automated test equipment that connects several differential test points to a shared measurement chain. Its eight-channel differential architecture preserves positive and negative signal relationships, while break-before-make switching helps avoid unwanted overlap as the test system changes channels. The 70 VPP overvoltage protection can improve robustness against unexpected test-point excursions. Actual switching time, charge injection, and input bias current must be taken from the manufacturer datasheet before setting measurement-settle time.
推薦
Bipolar Analog Instrumentation
The MPC507AUG4 fits analog instruments that accept bipolar inputs spanning -15 V to +15 V and require protection from overvoltage. Its protected inputs and absence of channel interaction help maintain fidelity when one source is misconnected or driven beyond the expected range. Unlike a single-ended multiplexer, the differential configuration is appropriate when the system represents a channel as two complementary signals. The fixed 1.5 kOhm on resistance should be included in the source-impedance and settling-time calculation.
推薦
High-Voltage Test Signal Multiplexing
The MPC507AUG4 is useful in test systems where a selected channel can experience voltages above the normal analog range. Its 70 VPP analog overvoltage protection and no-channel-interaction behavior distinguish it from basic CMOS analog switches. This makes it applicable to controlled high-voltage test fixtures, provided that protection energy is limited and upstream clamps protect the device from sustained or unlimited overvoltage. The operating supply remains a separate 5 V to 22 V dual-supply requirement.
推薦
Data Logging and Condition Monitoring
The MPC507AUG4 allows a compact logger or condition-monitoring controller to monitor eight differential channels in sequence. The -15 V to +15 V range supports bipolar sensing outputs, and the 7.5 mW typical standby power is useful in systems that disable the mux when measurements are not required. Address-control overhead and switching-settle time will determine the achievable scan rate. Confirm the standby definition and enable behavior in the TI datasheet before calculating duty-cycle power.
推薦
推薦產品摘要
工程參考資料，適用於 MPC507AUG4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MPC507AU | MPC507AU/1K |
|---|---|---|---|
| Package | 28-pin SOIC, 300 mil | 28-pin SOIC, 300 mil | 28-pin SOIC, 300 mil |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Multiplexer Configuration | 8:1 | 8:1 MPC507A family | 8:1 MPC507A family |
| Channel Architecture | 8 differential channels | 8 differential channels | 8 differential channels |
主要差異化特點
- Differential channel architecture with input overvoltage isolation (對比MPC506AU)
- Protected analog selection for bipolar instrumentation (對比MPC507AU/1K)
- Explicit no-interaction behavior during input overvoltage (對比MPC507AU)
設計說明
Treat the 1.5 kOhm on resistance as part of the source impedance seen by the selected channel. With a 10 nF input capacitance, the corresponding RC time constant is approximately 15 ns, but the amplifier, multiplexer capacitance, cable, and sampling network can increase the real settling time. Derive the required acquisition delay from the complete impedance and use the manufacturer's switching specifications rather than relying only on the calculated RC value.
The verified standby power is 7.5 mW typical, but that value should not be confused with total active power or quiescent current. Confirm the positive and negative supply arrangement and both input/output pins in the datasheet before layout. Because the MPC507AUG4 is specified for dual 5 V to 22 V operation, bypassing both supply rails close to the package is important for stable channel selection and predictable analog behavior.
Do not substitute the MPC506A for the MPC507AUG4 without redesigning the signal path. The TI product page identifies MPC506A as a 16-channel single-ended multiplexer and MPC507A as an 8-channel differential multiplexer; these are different channel architectures, not simple order-code variants. Likewise, do not assume a functional-equivalent label guarantees identical pinout, logic levels, or timing. Compare the complete TI pin tables and the Intersil cross-reference candidate before authorizing a substitution.
Route analog inputs and the selected output as short, guarded traces away from digital address and enable nets. Connect the device's analog and logic grounds according to the manufacturer layout guidance, and place bypass capacitors at the supply pins. The verified 70 VPP protection rating covers the internal input condition but does not remove the need for external clamps, series impedance, or surge protection when connected to external cables.
合規資訊
The verified ChipDig and Abacus data identify the MPC507AUG4 as lead free, RoHS compliant, REACH compliant, and conflict free. No AEC-Q100 qualification or separate halogen-free claim was found in the supplied data.
