Analog Devices Inc./Maxim Integrated MAX4707EXK+T

Overview

MAX4707EXK+T from Maxim Integrated is a normally open (NO), single-pole/single-throw (SPST) CMOS analog switch designed for low-voltage signal routing in portable and battery-powered systems. It operates from a single 1.8V to 5.5V supply, delivers 3.5Ω maximum on-resistance at +2.7V, achieves 190MHz −3dB bandwidth, and consumes only 0.02µA quiescent current - enabling precision audio and data-acquisition paths with minimal power overhead.

For engineers reviewing the MAX4707EXK+T datasheet, MAX4707EXK+T pinout, MAX4707EXK+T application, or MAX4707EXK+T equivalent, key selection criteria include guaranteed R_ON flatness (≤0.97Ω), −67dB off-isolation at 1MHz, 5-pin SC70 package compatibility, and TTL/CMOS logic interface for seamless integration into low-power embedded signal-switching architectures.

Technical Context

The MAX4707EXK+T implements a fully complementary CMOS transmission-gate topology optimized for low-voltage operation, with matched P- and N-channel devices ensuring symmetrical conduction across the analog signal range (0V to V+). Its control logic accepts standard TTL/CMOS input levels (V_IL ≤ 0.4V, V_IH ≥ 2.0V) and drives the switch gate with rail-to-rail swing to minimize R_ON variation.

Internal ESD protection diodes connect each analog terminal (COM, NO, IN) to V+ and GND, enabling bipolar signal handling when biased with split supplies - e.g., accepting ±1V_P-P signals with V+ = 2V and GND = −2V - while limiting off-state leakage to ±2nA over −40°C to +85°C.

Key Specifications

Pinout & Package

The MAX4707EXK+T is packaged in a 5-pin SC70 (SC70-5) surface-mount package measuring 2.0mm × 1.25mm × 0.95mm, optimized for space-constrained portable PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4707EXT-T and ADG801BRMZ-REEL7, the MAX4707EXK+T offers the smallest footprint and lowest quiescent current, making it optimal for space- and power-constrained portable designs - though its slightly higher R_ON and lower off-isolation require verification in high-precision signal chains.

Availability

MAX4707EXK+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term production continuity.

Supply support for MAX4707EXK+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, medical, communications, and consumer applications.

The MAX4706/MAX4707 family targets low-voltage, low-power analog switching - delivering high bandwidth and low distortion in miniature packages for portable instrumentation and signal-routing subsystems.

FAQ

What is the maximum on-resistance specification for MAX4707EXK+T at 2.7V supply?

The MAX4707EXK+T has a guaranteed maximum on-resistance (R_ON) of 3.5Ω when V+ = 2.7V, I_COM = 10mA, and the analog signal spans 0V to V+. This value is specified across the full operating temperature range (−40°C to +85°C) and ensures predictable voltage drop in precision analog paths. The MAX4707EXK+T achieves this performance using a matched CMOS transmission-gate architecture optimized for low-voltage conduction.

Does MAX4707EXK+T support bipolar analog signals?

Yes, the MAX4707EXK+T supports bipolar analog signals when powered from split supplies - for example, with V+ = 2V and GND = −2V, it accepts ±1V_P-P inputs. This capability relies on internal ESD diodes connected between each analog terminal (COM, NO) and both V+ and GND. The MAX4707EXK+T datasheet confirms this behavior and specifies leakage currents accordingly, making it suitable for AC-coupled audio and sensor front-ends.

What is the package type and dimensions of MAX4707EXK+T?

The MAX4707EXK+T uses a 5-pin SC70-5 package (also labeled SC70) with dimensions of 2.0mm × 1.25mm × 0.95mm. Pin 1 is marked by a dot or notch near the corner, and the top marking "AFP" identifies the MAX4707 variant. This compact footprint enables high-density routing in portable electronics, and the SC70-5 package is reflow-solder compatible per JEDEC J-STD-020 standards. The MAX4707EXK+T's pinout is fully documented in Maxim's datasheet Figure 1.

How does MAX4707EXK+T compare to MAX4706EXK+T in functionality?

The MAX4707EXK+T is the normally open (NO) version of the MAX4706/MAX4707 family, while MAX4706EXK+T is normally closed (NC). When the digital input (IN) is logic low, MAX4707EXK+T disconnects COM from NO, whereas MAX4706EXK+T connects COM to NC. Both share identical electrical specs - including 3.5Ω R_ON, 190MHz bandwidth, and 0.02µA supply current - and use the same SC70-5 package. The MAX4707EXK+T is selected for fail-safe open-circuit behavior in signal routing.

What is the off-isolation performance of MAX4707EXK+T at 1MHz?

The MAX4707EXK+T provides −67dB off-isolation at 1MHz, measured between COM and the OFF terminal (NO) with 50Ω source/load impedances. This parameter reflects suppression of signal coupling when the switch is open, critical for minimizing crosstalk in multiplexed systems. The MAX4707EXK+T achieves this via optimized channel geometry and low parasitic capacitance (17pF NO off-capacitance), and the value is guaranteed across −40°C to +85°C per the datasheet's Electrical Characteristics table.