Analog Devices Inc./Maxim Integrated MAX4690CAE

Overview

MAX4690CAE from Maxim Integrated is a dual SPST normally open (NO) CMOS analog switch with 1.25Ω max on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail signal handling up to ±10V. It features guaranteed R_ON matching ≤0.3Ω between channels and <5nA off-leakage at +85°C, making it suitable for precision data acquisition and automatic test equipment where low distortion and reed-relay replacement are critical.

For engineers reviewing the MAX4690CAE datasheet, MAX4690CAE pinout, MAX4690CAE application, or MAX4690CAE equivalent, key selection criteria include its NO configuration, 16-pin SSOP package, break-before-make absence (vs. MAX4700), TTL/CMOS-compatible logic inputs via dedicated VL pin, and verified performance across industrial temperature range (0°C to +70°C).

Technical Context

The MAX4690CAE implements two independent normally open analog switches using CMOS process technology, each with matched on-resistance and flat R_ON over the full ±10V signal range. Its separate VL pin enables logic-level compatibility independent of analog supply rails (V+/V−), supporting mixed-voltage system interfacing.

It operates without internal break-before-make timing-unlike the MAX4700-and exhibits 550pC typical charge injection, −65dB crosstalk, and −53dB off-isolation at 1MHz. Dynamic switching times are 400ns t_ON and 300ns t_OFF under ±15V dual-supply conditions with 10V COM swing.

Key Specifications

Pinout & Package

MAX4690CAE is housed in a 16-pin shrink small-outline package (SSOP) with 0.65mm lead pitch, optimized for compact PCB layouts and automated assembly. Pin 1 is located at the top-left corner adjacent to the index mark.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23157DGSR, the MAX4690CAE uniquely supports true dual-supply operation with isolated logic voltage (VL), delivers lower leakage at elevated temperature, and guarantees R_ON matching - making it the preferred choice for high-accuracy, wide-voltage industrial and ATE applications.

Availability

MAX4690CAE is available at Aetrix Electronics and suitable for reed relay replacement, data acquisition systems, and test equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX4690CAE 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 computing applications.

The MAX4690CAE belongs to Maxim's high-performance analog switch family engineered for low-R_ON, rail-to-rail operation, and robust switching integrity in automated test and data acquisition systems.

FAQ

What is the operating temperature range for the MAX4690CAE?

The MAX4690CAE is specified for commercial temperature operation from 0°C to +70°C. This range is confirmed in the Ordering Information table of the datasheet and applies specifically to the 'CAE' suffix variant. The device uses silicon process and packaging validated for stability and parameter consistency across this interval, with all electrical characteristics-including R_ON, leakage, and switching times-guaranteed within these limits. For extended temperature operation, the MAX4690EAE (−40°C to +85°C) is the qualified alternative.

Does the MAX4690CAE support break-before-make switching?

No, the MAX4690CAE does not feature break-before-make switching. As a dual normally open (NO) switch, both channels operate independently with no timing coordination between turn-off and turn-on events. Break-before-make behavior is exclusive to the MAX4700 variant, which integrates guaranteed timing control (5ns to 125ns t_OPEN). Using MAX4690CAE in applications requiring non-overlapping paths-such as power domain isolation-requires external logic sequencing or timing control.

Can the MAX4690CAE be used with a single +12V supply?

Yes, the MAX4690CAE supports single-supply operation from +4.5V to +36V. With V+ = +12V and V− tied to GND, it delivers rail-to-rail analog switching from 0V to +12V. The VL pin must be supplied with a compatible logic voltage (e.g., +5V or +3.3V) to ensure proper IN1/IN2 threshold levels. All key parameters-including 1.25Ω R_ON max and <5nA off-leakage-are verified under single-supply conditions per the Electrical Characteristics table.

What is the purpose of the VL pin on the MAX4690CAE?

The VL pin on the MAX4690CAE provides an independent logic supply reference for the IN1 and IN2 digital control inputs. This allows TTL/CMOS-compatible switching thresholds (0.8V low, 2.4V high) regardless of the analog supply voltages (V+/V−). For example, VL can be set to +5V while V+ = +15V and V− = −15V - eliminating the need for external level shifters and ensuring reliable logic interface in mixed-voltage systems.

How does the MAX4690CAE differ from the MAX4680CAE?

The MAX4690CAE and MAX4680CAE share identical package, supply ranges, and core specifications-but differ in switch configuration: MAX4690CAE implements two normally open (NO) switches, while MAX4680CAE implements two normally closed (NC) switches. This functional distinction determines default signal path state during power-down or logic-inactive conditions. Neither part offers break-before-make; that feature is reserved for the MAX4700CAE, which combines one NC and one NO switch with guaranteed timing control.