Analog Devices Inc./Maxim Integrated MAX4653EUE+T

Overview

MAX4653EUE+T from Maxim Integrated is a quad SPST analog switch with two normally open (NO) and two normally closed (NC) channels, operating from a single +1.8V to +5.5V supply. It delivers 4Ω max on-resistance at 5V, 0.2Ω max on-resistance matching between channels, and rail-to-rail analog signal handling - ideal for precision low-voltage signal routing in battery-powered test equipment.

For engineers reviewing the MAX4653EUE+T datasheet, MAX4653EUE+T pinout, MAX4653EUE+T application, or MAX4653EUE+T equivalent, key selection criteria include verified break-before-make timing (1–7 ns), -75dB off-isolation at 1MHz, 20ns typical turn-on time, and TSSOP-16 package compatibility with space-constrained PCB layouts.

Technical Context

The MAX4653EUE+T implements CMOS-based SPST switching architecture with independent digital control inputs (IN1–IN4) driving four discrete analog paths. Each channel features matched R_ON (≤0.2Ω) and flat R_ON (≤0.8Ω over 0–V+ range at 5V), enabling low-distortion signal pass-through without gain error across the full rail-to-rail input span.

Its logic interface accepts TTL/CMOS-compatible voltage thresholds (V_IL = 0.4–0.8V, V_IH = 2.0–2.4V depending on supply), while dynamic performance includes 12ns typical t_OFF, 20ns typical t_ON, and guaranteed break-before-make operation critical for preventing signal shorting during channel transitions.

Key Specifications

Pinout & Package

MAX4653EUE+T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed pad not implemented per datasheet note. Pin functions are electrically validated per Maxim's official pin configuration diagrams for the MAX4653 family.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4653EUE+T, MAX4652EUE+T lacks NC capability but shares identical R_ON, timing, and package - making it a functional subset for NO-only use cases; ADG1412BRUZ offers comparable R_ON but sacrifices low-voltage flexibility and adds supply complexity.

Availability

MAX4653EUE+T is available at Aetrix Electronics and suitable for battery-powered systems, audio/video signal routing, low-voltage data-acquisition systems, and sample-and-hold circuits requiring stable component supply and long-term manufacturability.

Supply support for MAX4653EUE+T 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) designs precision analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.

The MAX465x series targets low-voltage, low-distortion analog signal routing - specifically engineered for battery-powered instrumentation, ATE, and relay-replacement systems demanding rail-to-rail operation and sub-10ns switching.

FAQ

What is the maximum supply voltage rating for MAX4653EUE+T?

The absolute maximum supply voltage (V+ to GND) for MAX4653EUE+T is +6V. However, the recommended operating range is +1.8V to +5.5V per the datasheet's Electrical Characteristics tables. Operation above 5.5V risks permanent damage and invalidates parametric guarantees, including R_ON and leakage specs. Always observe the 0.3V diode clamp limit on analog pins relative to V+ and GND.

Does MAX4653EUE+T support true rail-to-rail analog signal operation?

Yes, MAX4653EUE+T supports rail-to-rail analog signal operation: input signals from GND to V+ pass through the switch with no clipping or distortion, as confirmed by the "Rail-to-Rail®" designation and specifications showing R_ON flatness over 0–V+ at multiple supply voltages. This is enabled by its CMOS process and internal level-shifting design, verified in Figures 1 and MAX4651/2/3-01 of the datasheet.

What is the function of pins labeled N.C. on the MAX4653EUE+T TSSOP package?

Pins 3, 6, and 14 on MAX4653EUE+T are designated N.C. (No Connection) - they are not bonded internally and serve no electrical function. Per Maxim's Pin Description table and package drawings, these pins must remain unconnected on the PCB. They may be grounded for mechanical stability or left floating; neither choice affects electrical performance, but grounding improves thermal dissipation marginally in high-power-density layouts.

How does the break-before-make timing work in MAX4653EUE+T?

MAX4653EUE+T guarantees break-before-make timing of 1–7 ns (depending on supply and temperature), meaning the NC path opens before the NO path closes during a logic transition. This is intrinsic to its internal gate-drive sequencing and is explicitly tested per Figure 2 and Table "Break-Before-Make (MAX4653 only)" in the datasheet. It prevents momentary shorting between NO and NC terminals - critical in configurations where both paths connect to different signal sources.

Can MAX4653EUE+T operate from a 1.8V supply while maintaining specified R_ON?

Yes, MAX4653EUE+T is fully specified down to +1.8V: R_ON is 30Ω typical (not guaranteed max) at 1.8V per the "Over Temperature" note in Features, and the Absolute Maximum Ratings confirm 1.8V as the minimum functional supply. While 4Ω max applies only at ≥4.5V, the device remains operational and rail-to-rail capable at 1.8V - making it suitable for deep-sleep modes or energy-harvesting systems where ultra-low voltage is mandatory.