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MAX4507CAP+ from Analog Devices / Maxim Integrated is an eight-channel, always-on analog signal-line protector in a 20-SSOP package. It is intended to isolate high-voltage input faults while providing defined output behavior to connected circuitry.
Electrical details are based on the MAX4506/MAX4507 manufacturer data sheet. Confirm the exact CAP+ ordering suffix and current procurement status before production use.
The MAX4507 combines eight independent two-terminal protection channels. In normal operation, each channel passes a rail-to-rail analog signal. An excessive input voltage opens the faulted input path and clamps its output toward the appropriate supply rail, helping protect the downstream circuit. The channels do not require individual logic-control inputs.
Consolidates protection of eight independent analog lines in one device.
The manufacturer specifies input overvoltage tolerance under both supply conditions.
A faulted input opens while its output clamps toward a supply rail.
Protection channels remain on whenever the supply is applied.
Octal fault-protected analog signal-line protector
Single +9 V to +36 V or dual +/-8 V to +/-18 V
0 C to +70 C for the CAP ordering family shown in the data sheet
20-SSOP (0.209 inch, 5.30 mm width)
The catalog identifies MAX4507CAP+ as a 20-SSOP device. The package registry uses the normalized name 20-SSOP and expects the JPG below. Confirm the manufacturer's current 20-SSOP land pattern and package drawing before PCB release.

The registered package JPG is not currently present and must be added and visually checked before publication.
The manufacturer's MAX4507 pin-function diagram identifies eight input/output channel pairs plus the positive and negative supply rails.
Use the 20-SSOP pin-number drawing in the manufacturer data sheet when assigning schematic symbols and PCB pads.
| Protection channels | 8 independent signal paths |
|---|---|
| Input fault protection, powered | Up to +/-36 V |
| Input fault protection, unpowered | Up to +/-40 V |
| Single-supply operation | +9 V to +36 V |
| Dual-supply operation | +/-8 V to +/-18 V |
| On-resistance | 100 ohms maximum |
| On-resistance matching | 7 ohms maximum |
| On-leakage | Less than 0.5 nA at +25 C |
| Power-off signal paths | Open |
| Operating temperature, CAP grade | 0 C to +70 C |
| Package | 20-SSOP |
Limits, typical values and operating conditions are not interchangeable; confirm the complete electrical table for the final use case.
The related MAX4507CAP+T and MAX4507EAP+ order codes exist in the product catalog, but their publication status has not been confirmed. The +T suffix concerns ordering media; the EAP variant has an extended temperature grade. Neither should be treated as a drop-in replacement without checking the exact ordering specification, 20-SSOP drawing, electrical limits, qualifications and availability. MAX4507CWN+ uses an 18-pin SOIC package and is not footprint-compatible.
Analog Devices maintains the MAX4507 family information and the Maxim MAX4506/MAX4507 data sheet. The current online model list shows MAX4507CAP+T but does not separately show MAX4507CAP+. Confirm the exact non-T suffix and lifecycle with the manufacturer or authorized channel before purchasing.
Protects multichannel analog measurement inputs from field-wiring faults.
Provides fault isolation at industrial analog interfaces.
Limits propagation of accidental high-voltage input events.
Supports designs that must tolerate supply sequencing and signal-line faults.
Verify the full ordering code, lot marking, package dimensions and supply-chain traceability against the manufacturer's records. Review the applicable moisture and soldering documents before assembly. A marketplace listing is not evidence of authorized inventory.
Eight independent analog signal paths.
The signal paths open; the manufacturer specifies input fault protection up to +/-40 V in the unpowered condition.
No. Confirm the exact ordering suffix, media, qualification and electrical and mechanical requirements.
No. The registered 20-SSOP JPG is currently missing.
Use the latest manufacturer-controlled data sheet and package drawing for final electrical and mechanical approval. This draft does not establish a current stock quote, exact CAP+ lifecycle or substitution approval. Resolve those items and the missing package image before publication.
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