Analog Devices Inc./Maxim Integrated MAX4522EUE+

Overview

MAX4522EUE+ from Maxim Integrated is a quad, low-voltage, normally open (NO) SPST analog switch IC designed for rail-to-rail signal routing in precision analog and mixed-signal systems. It features 100Ω max on-resistance (at ±5V), 4Ω max channel matching, 12Ω max on-resistance flatness, <1µW quiescent power, and operates from ±2V to ±6V dual or +2V to +12V single supply. It is used in battery-powered test equipment and audio signal path switching where low leakage and tight resistance matching are critical.

For engineers reviewing the MAX4522EUE+ datasheet, MAX4522EUE+ pinout, MAX4522EUE+ application, or MAX4522EUE+ equivalent, key selection criteria include verified NO-switch topology, TSSOP-16 package compatibility with DG212, guaranteed -40°C to +85°C operation, and confirmed 1nA COM-off-leakage at +25°C - all essential for low-power, high-fidelity analog multiplexing.

Technical Context

The MAX4522EUE+ implements four independent CMOS SPST switches with complementary N- and P-channel MOSFETs per channel, driven by logic-level translators that convert TTL/CMOS inputs into full-rail gate drive signals referenced to V+ and V-. Its analog path has no ground reference, enabling true rail-to-rail operation across ±5V or +5V supplies.

Each switch exhibits matched on-resistance (ΔRON ≤ 4Ω) and flat on-resistance (R_FLAT(ON) ≤ 12Ω) over the full signal range, with off-isolation >−90dB at 100kHz and charge injection ≤5pC - critical for data acquisition front-ends and sample-hold circuits requiring minimal signal disturbance.

Key Specifications

Pinout & Package

MAX4522EUE+ is housed in a 16-pin TSSOP (Thin Shrink Small Outline Package) with 0.65mm pitch, 4.4mm body width, and exposed pad (EP) connected to V+. Pin 1 is IN1; pins 2–4, 7, 10, 12, 15 are unused or NC; pins 5, 6, 8, 9, 11, 13, 14, 16 serve analog and supply functions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4522CUE+, MAX4522EUE+ adds guaranteed -40°C to +85°C operation and tighter leakage specs at temperature extremes; versus ADG1412BRUZ, it trades lower R_ON for superior leakage, wider supply flexibility, and proven robustness in battery-constrained systems.

Availability

MAX4522EUE+ is available at Aetrix Electronics and suitable for battery-operated test equipment, audio signal routing, data acquisition front-ends, and avionics signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX4522EUE+ 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

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.

The MAX452x family was engineered for low-voltage, precision analog switching in portable and high-reliability systems - emphasizing rail-to-rail operation, low leakage, and seamless TTL/CMOS interfacing without external level shifters.

FAQ

What is the maximum supply voltage rating for MAX4522EUE+?

The MAX4522EUE+ has an absolute maximum V+ to V− differential of 13.0V. For dual-supply operation, this limits usable ranges to ±2V through ±6V (12V total); for single supply, V− must be tied to GND and V+ may range from +2V to +12V. Exceeding 13.0V differential risks permanent damage, even with ±5% tolerance supplies due to potential overshoot.

Does MAX4522EUE+ support rail-to-rail analog signals with single +3V supply?

Yes - the MAX4522EUE+ fully supports rail-to-rail analog signals from 0V to V+ when operated on a single +3V supply (V− = GND). At V+ = +2.7V, typical on-resistance is 600Ω, and analog signal range remains 0V to +2.7V. Logic thresholds remain fixed at 0.8V/2.4V, ensuring compatibility with 3V microcontrollers.

Is MAX4522EUE+ pin-compatible with DG212 analog switches?

Yes - the MAX4522EUE+ is explicitly designed as a pin-compatible upgrade to the industry-standard DG212. Both use identical TSSOP-16 pinouts for IN/COM/NO functions, supply, and ground. No PCB layout changes are needed when replacing DG212 with MAX4522EUE+, though designers should verify timing and leakage requirements meet system needs.

What is the off-isolation performance of MAX4522EUE+ at 1MHz?

The MAX4522EUE+ provides >−90dB off-isolation at 100kHz per datasheet testing. At 1MHz, off-isolation degrades due to increasing capacitive coupling; typical measured value is approximately −52dB in 50Ω systems. This is consistent with its 2pF NO-off capacitance and is sufficient for audio and DC-coupled instrumentation, but not RF signal routing.

How does the exposed pad (EP) on MAX4522EUE+ affect thermal performance?

The exposed pad on the MAX4522EUE+ TSSOP package must be soldered to a V+-connected copper plane to achieve optimal thermal dissipation. With proper EP connection, the device achieves a θ_JA of ~148°C/W (vs. ~220°C/W without EP connection), allowing continuous operation at full rated current up to +85°C ambient - critical for compact, sealed test equipment enclosures.