Analog Devices Inc./Maxim Integrated MAX9100EUK-T

Overview

MAX9100EUK-T from Analog Devices is a micropower, single-supply comparator optimized for ultra-low-voltage battery-powered systems, featuring 1.0V to 5.5V operation, 5μA quiescent current, rail-to-rail output swing, and 4μs propagation delay. It delivers push-pull CMOS output capable of sourcing/sinking up to 5mA, enabling direct interface with logic loads in portable instrumentation and sensor monitoring circuits.

For engineers reviewing the MAX9100EUK-T datasheet, MAX9100EUK-T pinout, MAX9100EUK-T application, or MAX9100EUK-T equivalent, key selection criteria include guaranteed 1.0V operation, input common-mode range extending to ground, no phase reversal under overdrive, low-temperature drift offset voltage (±20mV max), and SOT23-5 footprint compatibility with space-constrained PCB layouts.

Technical Context

The MAX9100EUK-T employs a BiCMOS input stage with rail-to-rail input capability down to GND and up to VCC − 0.2V, supporting true single-cell operation. Its push-pull CMOS output stage provides rail-to-rail swing under load (≤5mA) without external pull-up, eliminating level-shifting components in 1.0V–5.5V domains.

Propagation delay remains stable across supply voltage (3.3–4.5μs at 50mV overdrive from 1.0V to 5.0V), and supply current increases only marginally with output switching frequency-enabling clean power delivery in noise-sensitive analog-sensor front ends without large bypass capacitors.

Key Specifications

Pinout & Package

MAX9100EUK-T is housed in a RoHS-compliant, lead(Pb)-free SOT23-5 package (U5-1), measuring 2.9mm × 1.6mm × 1.1mm, with thermal pad omitted. The compact footprint supports high-density portable PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3691IDBVR and MAX9060AXK+T, the MAX9100EUK-T uniquely combines guaranteed 1.0V operation, 5μA supply current, push-pull rail-to-rail output, and sub-4μs delay-making it the only option for ultra-low-voltage, high-speed, self-contained threshold detection in space- and power-constrained designs.

Availability

MAX9100EUK-T is available at Aetrix Electronics and suitable for portable electronic equipment, battery-powered instrumentation, and closed sensor applications requiring stable component supply, long-lifecycle support, and consistent tape-and-reel delivery for SMT production.

Supply support for MAX9100EUK-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 technologies, serving industrial, automotive, communications, and healthcare markets since 1965.

The MAX9100EUK-T belongs to Analog Devices' micropower comparator product line, engineered specifically for single-cell, battery-operated systems demanding ultra-low voltage start-up, minimal current draw, and robust rail-to-rail performance.

FAQ

What is the minimum operating voltage for MAX9100EUK-T?

The MAX9100EUK-T is fully specified to operate down to 1.0V, with guaranteed functionality including propagation delay, input offset, and output drive capability across the full −40°C to +85°C temperature range. This allows direct interfacing with partially discharged alkaline, lithium, or NiMH cells without voltage regulation-making MAX9100EUK-T ideal for long-life, single-cell portable devices.

Does MAX9100EUK-T have rail-to-rail input capability?

The MAX9100EUK-T features a rail-to-rail input common-mode range from 0V to (VCC − 0.2V), with full operation-including low input bias current and stable offset-within that span. Input voltages up to VCC are supported but incur increased bias current (up to 800nA) and slightly higher supply current (7μA), as documented in the datasheet's Detailed Description section.

Can MAX9100EUK-T drive a 5mA load at 1.0V supply?

Yes-the MAX9100EUK-T can sink and source up to 5mA with rail-to-rail swing, though output voltage margins scale with supply. At VCC = +1.0V and ISINK = 0.5mA, VOL is guaranteed ≤75mV; at ISOURCE = 0.1mA, VOH is guaranteed ≥25mV. These values ensure reliable logic-level compatibility with 1.2V and 1.8V receivers when properly loaded.

Is there internal hysteresis in MAX9100EUK-T?

Yes, the MAX9100EUK-T includes 2mV typical internal hysteresis (±2mV), enhancing noise immunity in slow-moving or noisy input signals. This built-in hysteresis eliminates the need for external positive feedback networks in basic threshold-detection applications, while still allowing optional external hysteresis via resistor dividers if tighter control is required.

What is the maximum operating temperature range for MAX9100EUK-T?

The MAX9100EUK-T is rated for continuous operation from −40°C to +85°C, with junction temperature limited to +150°C. All electrical specifications-including supply current, offset voltage, and propagation delay-are guaranteed across this full industrial temperature range, ensuring reliability in outdoor, automotive cabin, or uncontrolled-environment deployments.