Analog Devices Inc./Maxim Integrated MAX9013ESA+T

Overview

MAX9013ESA+T from Maxim Integrated is a single, high-speed, precision TTL comparator with complementary outputs and latch enable functionality, operating from a single 4.5V to 5.5V supply. It delivers 5ns typical propagation delay, ±5.5mV input offset voltage over temperature, and stable operation with slow-moving or low-overdrive inputs - ideal for high-speed zero-crossing detection and pulse-width discrimination in industrial timing circuits.

For engineers reviewing the MAX9013ESA+T datasheet, MAX9013ESA+T pinout, MAX9013ESA+T application, or MAX9013ESA+T equivalent, this device is selected for its guaranteed -40°C to +85°C operation, TTL-compatible complementary outputs, latch-controlled output hold, and absence of output phase reversal when inputs extend 200mV below ground.

Technical Context

The MAX9013ESA+T uses a fully differential bipolar input stage with no built-in hysteresis, enabling high-resolution comparison without resolution loss. Its latch enable (LE) input provides synchronous output capture, with 2ns setup and 0.5ns hold time, and latched propagation delay of 5ns.

It operates across the full common-mode range of –0.2V to (VCC – 1.9V), supporting ground-referenced signals and rail-to-rail input flexibility. Input stability in the linear region eliminates oscillation even at near-zero differential input, removing the need for external hysteresis and preserving small-signal resolution.

Key Specifications

Pinout & Package

MAX9013ESA+T is housed in an 8-pin SO (Small Outline) package with exposed pad, rated for –40°C to +85°C operation and compatible with standard SOIC-8 PCB footprints.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX9013ESA+T, MAX913ESA+ trades latch functionality and speed for legacy compatibility, while LT1016CS8#PBF prioritizes offset accuracy over propagation consistency and input stability - making MAX9013ESA+T optimal for synchronized, high-fidelity edge detection in modern 5V embedded systems.

Availability

MAX9013ESA+T is available at Aetrix Electronics and suitable for high-speed zero-crossing detection, pulse-width discrimination, and synchronous sampling circuits requiring stable component supply across industrial temperature ranges.

Supply support for MAX9013ESA+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 and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on performance, integration, and reliability.

The MAX9010–MAX9013 family was engineered specifically for single-supply, high-speed comparator applications demanding low propagation delay, ground-referenced inputs, and latch-controlled output stability - targeting timing-critical embedded control and signal conditioning.

FAQ

What is the maximum input overdrive voltage supported by the MAX9013ESA+T without damage?

The MAX9013ESA+T supports analog input voltages from –0.3V to (VCC + 0.3V) without damage, per absolute maximum ratings. This means at VCC = 5.5V, inputs may safely reach up to +5.8V or as low as –0.3V. However, correct logic decisions require at least one input within the specified common-mode range of –0.2V to (VCC – 1.9V). The MAX9013ESA+T maintains stable output behavior even when driven with overdriven inputs, with no phase reversal observed.

Does the MAX9013ESA+T require external hysteresis for stable operation?

No, the MAX9013ESA+T does not require external hysteresis. Its internal design prevents oscillation in the linear region, enabling stable output transitions even with slow-moving or low-overdrive inputs. Adding hysteresis would degrade resolution - particularly around zero-crossing points - and is explicitly discouraged in the datasheet. The MAX9013ESA+T achieves this stability through a unique differential amplifier architecture that avoids the trade-off between speed and linearity common in other high-speed comparators.

What is the purpose of the NC pin (Pin 7) on the MAX9013ESA+T SO package?

Pin 7 of the MAX9013ESA+T is labeled NC (No Connection) and is not internally bonded. Although it carries no electrical function, the datasheet recommends connecting Pin 7 to ground to reduce electromagnetic interference and improve noise immunity. This practice helps stabilize the internal reference structure and minimizes coupling from adjacent traces or components. Leaving Pin 7 floating is electrically permissible but not advised for noise-sensitive applications where the MAX9013ESA+T operates at its full 200MHz effective bandwidth.

How does the latch enable (LE) function behave during power-up of the MAX9013ESA+T?

During power-up, the MAX9013ESA+T's latch enable (LE) input defaults to a high-impedance state until VCC reaches ~1.5V, after which LE becomes active. With LE unconnected or pulled high, the output remains latched at its last valid state until LE is actively driven low to enter transparent mode. To ensure predictable startup behavior, the datasheet recommends tying LE to GND via a pull-down resistor (e.g., 10kΩ) unless synchronous latching is required at system reset. This guarantees the MAX9013ESA+T begins operation in transparent mode with output tracking input differentials immediately after power stabilization.

Can the MAX9013ESA+T operate reliably with a 4.7V supply instead of 5V?

Yes, the MAX9013ESA+T operates reliably across its full specified supply range of 4.5V to 5.5V, including 4.7V. All key parameters - propagation delay (5ns typ), input offset voltage (±5.5mV max), and output drive strength - are guaranteed over this range. At 4.7V, VOH remains ≥2.4V (with 4mA load) and VOL stays ≤0.6V, maintaining full TTL compatibility. Supply current decreases slightly (~1.25mA typ), improving thermal margin. No derating or design changes are needed when using 4.7V, making the MAX9013ESA+T suitable for systems with tightly regulated or aging 5V rails.