Analog Devices Inc./Maxim Integrated MAX4613CUE+

Overview

MAX4613CUE+ from Maxim Integrated is a quad SPST analog switch with two normally open (NO) and two normally closed (NC) channels, designed for precision signal routing in ±4.5V to ±20V bipolar or +4.5V to +40V single-supply systems. It delivers 85Ω max R_DS(ON), 4Ω max on-resistance matching between channels, 9Ω max on-resistance flatness, 10pC max charge injection, and <5nA off-leakage at +85°C - enabling high-fidelity audio routing and sample-and-hold circuits.

For engineers reviewing the MAX4613CUE+ datasheet, MAX4613CUE+ pinout, MAX4613CUE+ application, or MAX4613CUE+ equivalent, key selection criteria include rail-to-rail analog signal handling (±15V), TTL/CMOS logic compatibility, sub-250ns turn-on time, low power consumption (35µW max), and ESD tolerance of ≥2000V per Method 3015.7.

Technical Context

The MAX4613CUE+ implements four independent CMOS-based SPST switches with separate control inputs (IN1–IN4), each driving one drain (D1–D4) and source (S1–S4) pair. Its architecture guarantees matched on-resistance across all channels under bipolar supply conditions, with flatness defined over the full analog signal range (±15V).

Switching is controlled by logic-level inputs referenced to VL (5V), compatible with TTL or CMOS thresholds. Internal protection diodes clamp signals exceeding V+ or V−, and the exposed pad (EP) must be connected to V+ for thermal and electrical integrity in the 16-pin TSSOP package.

Key Specifications

Pinout & Package

MAX4613CUE+ is housed in a 16-pin TSSOP (Thin Shrink Small Outline Package) with 4.4mm body width and exposed thermal pad (EP) that must be soldered to V+. Pin pitch is 0.65mm; package thickness is 1.2mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG465BRUZ and TS5A3157DCKR, the MAX4613CUE+ uniquely combines guaranteed 4Ω R_DS(ON) matching, bipolar ±20V operation, and <5nA leakage at +85°C - making it the only option among the three qualified for precision instrumentation and military-grade signal routing.

Availability

MAX4613CUE+ is available at Aetrix Electronics and suitable for audio signal routing, sample-and-hold circuits, test equipment signal path configuration, and battery-operated systems requiring stable component supply across industrial temperature ranges (0°C to +70°C).

Supply support for MAX4613CUE+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.

The MAX4613CUE+ belongs to Maxim's precision analog switch product line, engineered for applications demanding low distortion, tight parameter matching, and robust operation across wide supply and temperature ranges.

FAQ

What supply voltage ranges does the MAX4613CUE+ support?

The MAX4613CUE+ operates from a single +4.5V to +40V supply or bipolar ±4.5V to ±20V supplies. When using a single supply, V− must be connected to GND. The device maintains specified performance across this full range, including guaranteed R_DS(ON) matching and flatness only under bipolar conditions per datasheet Note 4. MAX4613CUE+ supports unbalanced supplies like +24V/−5V, provided |V+ − V−| ≤ +44V.

How many switches are in the MAX4613CUE+ and what are their configurations?

The MAX4613CUE+ integrates four independent SPST analog switches: two are normally open (NO) and two are normally closed (NC). This configuration is fixed per the device's internal logic mapping - IN1 and IN4 control NO switches (S1↔D1, S4↔D4), while IN2 and IN3 control NC switches (S2↔D2, S3↔D3). All switches conduct bidirectionally with identical R_DS(ON) characteristics regardless of signal direction.

What is the purpose of the VL pin on the MAX4613CUE+?

The VL pin on the MAX4613CUE+ sets the logic threshold reference for the IN1–IN4 control inputs. Connecting VL to +5V enables TTL-compatible operation (VINH ≥ 2.4V, VINL ≤ 0.8V); connecting VL to V+ enables CMOS-compatible thresholds (VINH ≥ 70% V+, VINL ≤ 30% V+). VL must remain within (GND − 0.3V) to (V+ + 0.3V); incorrect VL biasing causes undefined switching behavior or increased logic current.

Does the MAX4613CUE+ require external protection diodes for overvoltage handling?

No - the MAX4613CUE+ includes internal clamping diodes on all analog and digital pins (per Absolute Maximum Ratings Note 1), limiting signals to V+ + 2V and V− − 2V. However, Maxim recommends external series diodes (Figure 1) if supply sequencing cannot guarantee V+ powers on first. Adding diodes reduces usable analog range by ~1V but preserves R_DS(ON) and leakage specs. MAX4613CUE+ ESD rating remains ≥2000V HBM regardless of external protection.

What is the function of the exposed pad (EP) on the MAX4613CUE+ TSSOP package?

The exposed pad (EP) on the MAX4613CUE+ TSSOP package serves dual thermal and electrical functions: it must be soldered directly to the V+ net on the PCB to reduce thermal resistance and stabilize substrate potential. Per Pin Description, EP connects internally to the die substrate and improves power dissipation by >30% versus non-EP packages. Leaving EP floating or grounding it degrades thermal performance and may cause latch-up or parametric shift in high-current operation.