Analog Devices Inc. ADGS5414BCPZ

Overview

ADGS5414BCPZ from Analog Devices is an octal SPST analog switch with SPI interface, 13.5 Ω typical on-resistance, ±20 V / +36 V supply capability, break-before-make switching action, and 8 kV HBM ESD rating - designed for high-voltage multiplexer configurations in automated test equipment and precision instrumentation.

For engineers reviewing the ADGS5414BCPZ datasheet, ADGS5414BCPZ pinout, ADGS5414BCPZ application, or ADGS5414BCPZ equivalent, key selection criteria include guaranteed break-before-make timing (260 ns typ), SPI error detection (CRC, SCLK count, invalid address), daisy-chain support, trench-isolated analog section, and full signal-range operation from VSS to VDD.

Technical Context

The ADGS5414BCPZ integrates eight independent SPST switches controlled via a robust SPI interface supporting Mode 0/Mode 3, burst mode, and daisy-chain topology. Its trench-isolated analog core prevents latch-up under overvoltage conditions up to ±48 V across VDD–VSS.

Digital control includes CRC error detection, invalid read/write address checking, and SCLK count validation - enabling use in safety-critical systems. Break-before-make switching (260 ns typ) allows external wiring into multiplexer topologies without channel shorting.

Key Specifications

Pinout & Package

ADGS5414BCPZ uses a 24-lead LFCSP package (CP-24-171) with exposed pad, 4 mm × 4 mm footprint, and 0.5 mm pitch. Pin 1 = VDD; pins 2–17 = S1/D1 through S8/D8; pin 18 = VSS; pins 19–24 = SDO, RESET/VL, CS, SCLK, GND, SDI.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG5412BRUZ and MAX4674ETE+, the ADGS5414BCPZ uniquely combines octal channel count, SPI-based diagnostics, trench isolation, and guaranteed break-before-make - making it the only option qualified for safety-critical, high-voltage multiplexer designs requiring traceable fault detection.

Availability

ADGS5414BCPZ is available at Aetrix Electronics and suitable for automated test equipment, precision instrumentation, avionics signal routing, and high-reliability relay replacement applications requiring stable component supply across extended temperature and voltage ranges.

Supply support for ADGS5414BCPZ 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and a focus on precision, reliability, and signal integrity.

The ADGS5414BCPZ belongs to Analog Devices' high-voltage SPI-controlled analog switch product line, engineered specifically for replacing electromechanical relays and enabling reconfigurable, fault-aware signal routing in safety-critical test and measurement systems.

FAQ

What is the maximum supply voltage range supported by the ADGS5414BCPZ?

The ADGS5414BCPZ supports dual-supply operation from ±9 V to ±22 V and single-supply operation from 9 V to 40 V. Absolute maximum ratings allow VDD–VSS up to 48 V, with analog signal range extending fully from VSS to VDD. This enables direct interfacing with ±20 V and +36 V systems without level-shifting circuitry - a key advantage in high-voltage instrumentation and ATE.

Does the ADGS5414BCPZ support daisy-chaining, and how many devices can be cascaded?

Yes, the ADGS5414BCPZ supports daisy-chaining via its open-drain SDO pin, which propagates shifted-out data on the falling edge of SCLK. While the datasheet does not specify a hard limit, practical implementation with 50 MHz SCLK and proper termination supports ≥8 devices in series without timing violation - verified in Analog Devices' AN-1327 application note. Each device retains independent register access within the chain.

What is the purpose of the trench isolation architecture in the ADGS5414BCPZ?

The trench isolation architecture in the ADGS5414BCPZ uses a dielectric barrier to physically separate P-channel and N-channel transistors in the analog switch core. This prevents latch-up under severe overvoltage conditions - such as ±48 V applied across VDD–VSS - ensuring robust operation in fault-prone environments like automated test fixtures and avionics power-up sequences where transient overvoltages occur.

How does the break-before-make timing affect multiplexer design using the ADGS5414BCPZ?

The ADGS5414BCPZ guarantees a minimum break-before-make delay of 205 ns (−40°C to +125°C), with 260 ns typical at +25°C. This allows safe external wiring of Sx/Dx pins to construct 1-of-8 multiplexers without risk of momentary channel shorting. Unlike non-break-before-make switches, no external timing logic or delay circuits are needed - simplifying PCB layout and improving system reliability in high-density signal routing.

Can the ADGS5414BCPZ operate with 1.8 V logic levels?

No, the ADGS5414BCPZ requires VL (logic supply) between 2.7 V and 5.5 V, with VINH thresholds of 1.35 V min (at 2.7 V ≤ VL ≤ 3.3 V) and 2.0 V min (at 3.3 V < VL ≤ 5.5 V). It is not 1.8 V logic compatible. For 1.8 V systems, level translation is required on CS, SCLK, SDI, and RESET/VL lines - confirmed by Table 1's digital input voltage specifications and the "1.8 V logic compatibility" feature being absent from the ADGS5414BCPZ datasheet.