Texas Instruments MPC507AP

Overview

MPC507AP from Texas Instruments is an 8-channel differential CMOS analog multiplexer with ±15V analog signal range, 1.5kΩ typical on-resistance, 70V_PP analog overvoltage protection, break-before-make switching, and –40°C to +85°C operating temperature. It serves as a fault-tolerant signal routing device in industrial data acquisition systems interfacing externally powered sensors.

For engineers reviewing the MPC507AP datasheet, MPC507AP pinout, MPC507AP application, or MPC507AP equivalent, key selection criteria include differential channel leakage matching (≤10nA), off-isolation (≥50dB), settling time to 0.01% (3.5µs), and compatibility with ±15V dual-supply instrumentation front-ends.

Technical Context

The MPC507AP implements dielectrically isolated CMOS switch architecture with integrated overvoltage clamps and signal isolation circuitry per channel pair. Its decoder/driver stage accepts 3-bit binary address inputs (A0–A2) and an active-high enable (EN) to select one of eight differential input pairs (In1A/In1B through In8A/In8B) to the dual outputs (Out A, Out B).

Each channel features matched ON resistance (1.3–1.8kΩ), differential off-output leakage ≤10nA, and <0.1pF input-to-output capacitance. The device maintains signal fidelity under ±33V analog overvoltage conditions without disturbing adjacent channels or requiring external protection components.

Key Specifications

Pinout & Package

Package: 28-pin plastic SOIC (DW), 0.300-inch wide body, RoHS-compliant NIPDAU lead finish, MSL Level-2-260°C-1 year.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential analog multiplexer applications.

Compared with ADG507AKRZ and MAX306CPI+, the MPC507AP uniquely combines ±33V overvoltage tolerance, matched differential leakage, and guaranteed break-before-make timing-making it the only option for unconditioned, safety-critical differential sensor multiplexing without external protection components.

Availability

MPC507AP is available at Aetrix Electronics and suitable for industrial data acquisition, medical patient monitoring, test equipment, avionics sensor interface, and precision instrumentation requiring stable component supply across extended temperature ranges.

Supply support for MPC507AP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision signal chain solutions.

The MPC507AP belongs to TI's legacy Burr-Brown analog multiplexer product line, designed specifically for high-reliability differential signal routing in harsh industrial and medical environments where overvoltage resilience and channel matching are critical.

FAQ

What is the maximum analog overvoltage the MPC507AP can withstand without damage?

The MPC507AP can withstand ±33V analog overvoltage continuously on any input pin relative to its respective supply rail, with no damage to the device or disturbance to other channels. This is verified per the SBFS018A datasheet under "Analog Input Overvoltage" testing, where output off-leakage remains ≤2µA at ±33V. The MPC507AP's integrated clamp and isolation circuitry enables this protection without external components.

Does the MPC507AP support single-supply operation?

No, the MPC507AP requires dual ±15V supplies for full specification compliance. Its analog signal range is specified as ±15V, and absolute maximum ratings define V+ to V– as 44V-indicating a bipolar supply architecture. Attempting single-supply operation violates the datasheet's operating conditions and compromises overvoltage protection, R_ON flatness, and leakage performance. The MPC507AP is not characterized for 0V to +30V or similar configurations.

How does the MPC507AP achieve break-before-make switching, and is the timing guaranteed?

The MPC507AP achieves break-before-make switching via internal timing control in its decoder/driver stage, ensuring the previously selected channel disconnects before the newly addressed channel connects. The datasheet guarantees t_OPEN (break-before-make delay) from 25ns to 80ns over full temperature range. This timing is process-controlled and tested-not dependent on external RC networks-making it reliable for preventing transient shorts in differential instrumentation paths.

Can the MPC507AP be used in a 64-channel expanded configuration, and what is required?

Yes, the MPC507AP supports 64-channel expansion using either single-node (eight parallel devices sharing one output node) or two-tier (eight first-tier devices feeding one second-tier MPC507AP) topologies. Both require a 6-bit counter: 3 LSBs drive A0–A2 of each device, and 3 MSBs control ENABLE lines (single-node) or the second-tier address. The MPC507AP's ENABLE pin and matched channel specs make this expansion viable without added offset or CMR degradation.

What is the significance of the V_REF pin on the MPC507AP, and how should it be configured?

The V_REF pin on the MPC507AP sets the logic threshold for digital inputs: when left open, it enables standard TTL-compatible thresholds (VAL = 0.8V, VAH = 4.0V); when tied to logic high, it allows higher input thresholds (up to 6V). This dual-mode flexibility lets the MPC507AP interface directly with both 5V TTL and higher-voltage logic families without level shifters. The datasheet specifies that V_REF must not exceed the positive supply voltage.