Analog Devices Inc. ADG452BRUZ

Overview

ADG452BRUZ from Analog Devices is a monolithic CMOS quad SPST analog switch with inverted digital control logic, designed for precision signal routing in ±15 V, ±12 V, and 12 V single-supply systems. It delivers 5 Ω max on-resistance, 70 ns typical turn-on time, ±15 V analog signal range, and ultralow 18 μW power dissipation - enabling high-fidelity audio switching and battery-powered data acquisition.

For engineers reviewing the ADG452BRUZ datasheet, ADG452BRUZ pinout, ADG452BRUZ application, or ADG452BRUZ equivalent, key selection criteria include its LC2MOS process advantages (low R_ON flatness, low charge injection), TTL/CMOS-compatible inputs, and compatibility with relay replacement, sample-and-hold, and PBX system designs where bidirectional conduction and rail-to-rail signal handling are required.

Technical Context

The ADG452BRUZ implements four independent SPST switches fabricated on an enhanced LC2MOS process, delivering low on-resistance (5 Ω max) with flatness of 0.5 Ω max across the full analog input range. Its inverted logic architecture requires a logic high to turn switches on - distinguishing it from the ADG451's low-true control.

It supports dual supplies from ±4.5 V to ±20 V and single supplies down to +5 V, with absolute maximum ratings up to ±16.5 V and 44 V V_DD–V_SS. All channels conduct equally well in both directions, block signals up to supply rails when off, and exhibit 2 kV ESD protection per HBM.

Key Specifications

Pinout & Package

ADG452BRUZ is packaged in a 16-lead TSSOP (RU-16) with 0.65 mm pitch, 5.0 mm × 4.4 mm body, and exposed pad for thermal performance. Pin 1 is marked by a dot; device operates with V_DD (Pin 13), V_SS (Pin 4), GND (Pin 5), and VL (Pin 12) as separate supply terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG451BRUZ, ADG452BRUZ provides inverted logic alignment with standard microcontroller outputs, eliminating external inverters; versus ADG1412BRUZ, it retains 5 V logic compatibility and lower BOM cost while trading bandwidth for broader supply flexibility and field-proven reliability in industrial telecom infrastructure.

Availability

ADG452BRUZ is available at Aetrix Electronics and suitable for relay replacement, audio switching, precision data acquisition, and PBX signal routing requiring stable component supply across industrial temperature ranges (−40°C to +85°C).

Supply support for ADG452BRUZ 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.

The ADG452BRUZ belongs to Analog Devices' LC2MOS analog switch family, engineered for low-power, high-linearity signal routing in test equipment, communications, and precision instrumentation where rail-to-rail operation and low distortion are critical.

FAQ

What is the logic polarity of the ADG452BRUZ control inputs?

The ADG452BRUZ uses inverted logic: each switch turns ON when its corresponding INx pin is driven HIGH (≥2.4 V), and OFF when driven LOW (≤0.8 V). This differs from the ADG451BRUZ, which activates on logic low. The truth table is explicitly defined in the datasheet (Table 6), and no external inversion is needed when interfacing with standard 5 V CMOS outputs.

Can ADG452BRUZ operate from a single 12 V supply?

Yes, ADG452BRUZ is fully specified for 12 V single-supply operation (V_DD = 12 V, V_SS = GND), supporting analog signals from 0 V to 12 V. On-resistance rises to 10 Ω max under these conditions, and leakage remains within ±2.5 nA. The device remains functional down to +5 V single supply, though R_ON increases to 15 Ω max at that level.

Does ADG452BRUZ support break-before-make switching?

No, ADG452BRUZ does not implement break-before-make action. That feature is exclusive to the ADG453 variant, which integrates mixed logic (two channels inverted, two non-inverted) to enforce channel isolation during address transitions. ADG452BRUZ switches operate independently and simultaneously - making it ideal for parallel signal routing but requiring external sequencing for multiplexer-style channel selection.

What is the maximum continuous current rating per switch of ADG452BRUZ?

The ADG452BRUZ supports 100 mA continuous current per S or D terminal, as specified in the Absolute Maximum Ratings table. This applies across all operating conditions and supply configurations. Peak pulsed current is rated at 300 mA (1 ms, 10% duty cycle), but sustained operation above 100 mA risks thermal overstress and parametric shift, especially in TSSOP packages with θ_JA = 115°C/W.

Is ADG452BRUZ pin-compatible with older ADG412 devices?

Yes, ADG452BRUZ is explicitly documented as a pin-compatible upgrade for ADG412 (and ADG432). It shares identical RU-16 TSSOP footprint, pin numbering, and terminal functions - including V_DD, V_SS, GND, VL, INx, Sx, and Dx assignments. No PCB changes are required; the upgrade delivers lower R_ON, faster switching, and improved leakage performance while maintaining full electrical and mechanical compatibility.