Now an end-of-life precision analog switch from Analog Devices’ protected AD751xDI series, the AD7511DISQ/883B integrates four independent single-pole/single-throw (SPST) channels in a hermetically sealed ceramic dual-inline package (CDIP). This military-grade variant is processed to MIL-STD-883B screening requirements, ensuring robust performance in harsh environments. The protected switch architecture is designed to withstand overvoltage and latch-up conditions, and each channel features low on-resistance with break-before-make operation, making the device suitable for multiplexed data acquisition, sample-and-hold stages, and precision signal routing where rail-to-rail analog input ranges must be preserved without degradation.
Typical deployments for the AD7511DISQ/883B include flight-critical avionics, radar signal conditioning, secure military communication nodes, and automated test equipment that cannot tolerate field failures. The part was officially discontinued by Analog Devices, making factory supply no longer available. For sustainment programs, ZZX Electronics sources legacy stock with full date-code traceability from authenticated supply channels, supporting platforms where a board redesign or requalification cycle is cost-prohibitive. The MIL-STD-883B pedigree, hermetic CDIP construction, and drop-in compatibility with existing layouts allow this obsolete component to extend the service life of fielded defense systems, space-qualified instrumentation, and industrial high-reliability controllers while avoiding recertification timelines and design refresh risks.
| Attribute | Value |
|---|---|
| Switch Circuit | SPST - NC |
| Multiplexer/Demultiplexer Circuit | 1:1 |
| Number of Circuits | 4 |
| On-State Resistance (Max) | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 1Ohm (Typ) |
| Voltage - Supply, Dual (V±) | ±15V |
| Switch Time (Ton, Toff) (Max) | 350ns, 180ns (Typ) |
| Charge Injection | 30pC |
| Channel Capacitance (CS(off), CD(off)) | 8pF, 1pF |
| Current - Leakage (IS(off)) (Max) | 5nA |
| Operating Temperature | -55°C ~ 125°C |
| Mounting Type | Through Hole |
| Package / Case | 16-CDIP (0.300in, 7.62mm) |
| Supplier Device Package | 16-CERDIP |
| Absolute Maximum Vdd to GND | +17 V |
| Digital Input Voltage Range | 0 V to Vdd +0.3 V |
| Overvoltage at VD (VS) | 1 second surge Vdd +25V or Vss −25V; continuous Vdd +20V or Vss −20V |
| Overvoltage-Proof / Power Dissipation (Features) | Overvoltage-Proof ±25V; Low Dissipation 3mW |
| Power Dissipation (Any Package) | 450 mW (up to +75°C); above +75°C derate by 5 mW/°C |
| Switch Current (IDS, Continuous) | 50 mA or 20 mA, whichever occurs first |
| Switch Current (IDS, Surge) | 150 mA, 1 ms duration, 10% duty cycle |
| Switch Logic Polarity | Switch ON for address LOW (the opposite of the AD7510DI, which is address HIGH) |
| Extended Temperature Version Definition (S/Q suffix) | SQ, TQ, SE, TE versions are the -55°C to +125°C extended grade |
| Lead Temperature (Soldering, 10 sec) | +300°C |
| Storage Temperature | -65°C to +150°C |
| Absolute Maximum Vss to GND | -17 V |
| Base Device | AD7511DI |
| Switch Configuration | Four independent SPST analog switches (16-pin DIP or 20-terminal surface-mount package) |
Download the current available datasheet for AD7511DISQ/883B.
Download Datasheet
