Analog Devices Inc./Maxim Integrated MAX9693EEE+

Overview

MAX9693EEE+ from Maxim Integrated is a dual ultra-fast ECL-output comparator with latch-enable functionality, designed for high-frequency signal conditioning in timing-critical systems. It delivers 1.2ns typical propagation delay, 100ps channel-to-channel propagation match, and operates from +5V and -5.2V supplies. Its complementary ECL outputs drive 50Ω-terminated transmission lines and support applications including high-speed line receivers and peak detectors.

For engineers reviewing the MAX9693EEE+ datasheet, MAX9693EEE+ pinout, MAX9693EEE+ application, or MAX9693EEE+ equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative parts, and supply-chain readiness for industrial and test-equipment designs.

Technical Context

The MAX9693EEE+ integrates two independent high-speed comparators sharing common power rails (+5V VCC, -5.2V VEE) and ground. Each channel features differential ECL-compatible inputs, open-emitter complementary outputs requiring external pull-down resistors (50Ω–200Ω to -2.0V or 240Ω–2000Ω to -5.2V), and dedicated latch-enable (LEA/LEB) inputs with 0.5ns minimum pulse width.

Its BiCMOS process enables sub-2ns propagation delay while maintaining DC precision: ±11.5mV input offset voltage over temperature, 60dB PSRR, and 80dB CMRR. The device supports sample-hold operation via synchronous LE control and exhibits 150ps dispersion across 10mV–100mV input overdrive range.

Key Specifications

Pinout & Package

MAX9693EEE+ is housed in a 16-pin QSOP package (E16+1 outline, RoHS-compliant), measuring 3.9mm × 9.9mm with 0.635mm pitch. Pin 1 is Q OUTA (Channel A output); pins 3 and 14 are GND; pins 4 and 13 are LEA (Channel A latch enable); pins 7 and 8 are INA−/INA+; pins 9 and 10 are INB+/INB−; pins 15 and 16 are Q OUTB and Q OUTB.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-speed ECL comparator applications.

Compared with MAX9693EEE+, MAX9693ESE+ offers identical electrical performance in a larger SO package ideal for prototyping or thermal-heavy layouts, while ADCMP572BCPZ-R7 trades latch capability and ECL compatibility for lower supply voltage and CML output - making it unsuitable as a drop-in replacement.

Availability

MAX9693EEE+ is available at Aetrix Electronics and suitable for high-speed test equipment, industrial instrumentation, and communications infrastructure requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX9693EEE+ 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 RF ICs for industrial, communications, and computing markets.

The MAX969x family was designed specifically for ultra-high-speed timing-critical applications demanding sub-2ns propagation delay, ECL compatibility, and integrated latch functionality - targeting test-and-measurement, radar, and optical networking systems.

FAQ

What is the supply voltage requirement for MAX9693EEE+?

The MAX9693EEE+ requires two independent supplies: +5V on VCC (Pin 6) and -5.2V on VEE (Pin 11). These voltages establish the ECL logic levels and output swing. Operation outside the absolute maximum ratings (VCC: -0.3V to +6V; VEE: -6V to +0.3V) risks permanent damage. Decoupling each supply with a 0.1µF ceramic capacitor placed near the respective pin is mandatory for stable high-speed operation of the MAX9693EEE+.

How does the latch-enable function work on MAX9693EEE+?

Each channel of the MAX9693EEE+ has dedicated latch-enable inputs: LEA (Pins 4,13) and LEB (Pins 5,12). When an LE input is driven ECL-high, the comparator operates normally. When driven ECL-low, the corresponding outputs freeze in their current state based on the input condition at the latch transition. The MAX9693EEE+ requires 0.5ns minimum setup time and 0.5ns hold time relative to the LE falling edge to guarantee correct latching behavior.

What external components are required for MAX9693EEE+ output termination?

The MAX9693EEE+ features open-emitter outputs requiring external pull-down resistors. For -2.0V termination, use 50Ω–200Ω resistors; for -5.2V termination, use 240Ω–2000Ω resistors. These resistors define the output logic levels (VOH ≈ -0.87V to -1.06V; VOL ≈ -1.51V to -1.89V) and must be placed close to the device to minimize stub length. Transmission-line routing with 50Ω characteristic impedance is recommended for optimal signal integrity in the MAX9693EEE+.

Can unused inputs or comparators on MAX9693EEE+ be left floating?

No. Unused comparator inputs on the MAX9693EEE+ must not be left floating, as this can cause oscillation or excessive current draw. For unused channels, tie both inputs (e.g., INA+ and INA−) to a valid common-mode voltage such as -2.0V. If the latch-enable function is unused for a channel, connect its LE inputs to appropriate ECL logic levels: LE to GND and complementary LE to ECL-high (e.g., -0.9V). This ensures predictable behavior and prevents noise coupling in the MAX9693EEE+.

What is the operating temperature range for MAX9693EEE+?

The MAX9693EEE+ is specified for continuous operation from -40°C to +85°C ambient temperature. This industrial-grade range is guaranteed across all electrical parameters in the datasheet, including propagation delay, input offset voltage, and latch timing. The device's BiCMOS process and thermal design ensure stable performance across this full range, making the MAX9693EEE+ suitable for deployment in harsh environments like factory automation and outdoor communications equipment.