Analog Devices Inc./Maxim Integrated MAX9100ESA+T

Overview

MAX9100ESA+T from Analog Devices is a micropower, single-supply comparator with push-pull CMOS output, optimized for battery-powered systems operating from 1.0V to 5.5V supply. It delivers 5μA quiescent current, 4μs propagation delay, rail-to-rail output swing (≤5mA load), and input common-mode range extending to the negative rail - enabling full utilization of low-voltage battery headroom in portable instrumentation.

For engineers reviewing the MAX9100ESA+T datasheet, MAX9100ESA+T pinout, MAX9100ESA+T application, or MAX9100ESA+T equivalent, key selection criteria include ultra-low 1.0V operation, guaranteed rail-to-rail output drive at sub-1.2V supplies, absence of output phase reversal under overdrive, and compatibility with mixed-voltage logic translation via its robust push-pull stage.

Technical Context

The MAX9100ESA+T employs a BiCMOS input stage with ±5nA typical input bias current (within 0–VCC−0.2V common-mode range) and a high-drive CMOS push-pull output capable of sourcing/sinking 5mA while maintaining rail-to-rail swing. Its internal 1mV hysteresis enhances noise immunity without external components.

Propagation delay remains stable across supply voltage (3.3–4.5μs at 1.0–5.0V, 50mV overdrive) and temperature (−40°C to +85°C), and power-up time is 250ns - critical for fast wake-up in duty-cycled sensor monitoring systems.

Key Specifications

Pinout & Package

MAX9100ESA+T is housed in an 8-pin SO (Small Outline) package (PKG CODE S8-2), measuring 4.9mm × 3.9mm × 1.75mm, with gull-wing leads and RoHS-compliant matte-tin plating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3691IDBVR and MAX9060ASA+, the MAX9100ESA+T uniquely combines 1.0V operation, 4μs delay, push-pull output, and GND-inclusive input range - making it the only option for high-speed, single-cell wake-up and precision low-voltage monitoring in one device.

Availability

MAX9100ESA+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical devices, and single-cell IoT sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for MAX9100ESA+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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and healthcare markets since 1965.

The MAX9100ESA+T belongs to Analog Devices' micropower comparator family designed specifically for energy-constrained, single-cell battery systems - prioritizing ultra-low voltage operation, minimal quiescent current, and rail-to-rail functionality without performance trade-offs.

FAQ

What is the minimum operating voltage for MAX9100ESA+T?

The MAX9100ESA+T operates down to 1.0V, fully specified across −40°C to +85°C. At 1.0V, it maintains 5μA quiescent current, 3.3μs propagation delay (50mV overdrive), and rail-to-rail output swing with ≤75mV drop at 0.1mA load - enabling direct interface with nearly depleted alkaline or LiFePO₄ cells.

Does MAX9100ESA+T have rail-to-rail input capability?

Yes, the MAX9100ESA+T features a rail-to-rail input common-mode range from 0V (GND) to VCC − 0.2V, verified across temperature and supply voltage. Input bias current remains ±5nA within this range, allowing direct connection of ground-referenced sensors like thermistors or strain gauges without level-shifting circuitry.

What is the output configuration of MAX9100ESA+T?

The MAX9100ESA+T uses a push-pull CMOS output stage, not open-drain. It actively sources and sinks current, delivering true rail-to-rail output swing (e.g., VOL < 75mV at 0.5mA sink, VOH > VCC − 120mV at 0.5mA source) - eliminating external pull-up resistors required by open-drain comparators like the MAX9101.

Can MAX9100ESA+T be used in mixed-voltage logic translation?

Yes, the MAX9100ESA+T's push-pull output and wide 1.0V–5.5V supply range support logic translation, such as converting 1.2V MCU outputs to 3.3V or 5V logic levels. Its rail-to-rail swing and 5mA drive capability ensure clean, fast edges without external components - unlike open-drain alternatives requiring pull-up networks.

Is there internal hysteresis in MAX9100ESA+T?

Yes, the MAX9100ESA+T includes 1mV typical internal hysteresis, improving noise immunity for slowly varying inputs like temperature or battery voltage. This eliminates the need for external positive-feedback resistors in basic threshold-detection applications - reducing component count and PCB area in portable designs.