Analog Devices Inc./Maxim Integrated MAX9075EUK

Overview

MAX9075EUK from Maxim Integrated is a single, rail-to-rail output, ground-sensing comparator optimized for ultra-low-power portable systems. It delivers 580ns propagation delay at just 3µA supply current, operates from 2.1V to 5.5V single supply, and features rail-to-rail output swing into 2mA loads - enabling direct interface with TTL/CMOS logic in battery-powered threshold detection circuits.

For engineers reviewing the MAX9075EUK datasheet, MAX9075EUK pinout, MAX9075EUK application, or MAX9075EUK equivalent, key selection considerations include its 3µA quiescent current, -0.2V to VCC–1.2V common-mode input range, absence of differential input clamping, no phase inversion under overdrive, and SOT23-5 package compatibility with space-constrained designs.

Technical Context

The MAX9075EUK employs a BiCMOS process to achieve low power without sacrificing speed: its push-pull output stage eliminates external pull-up resistors and supports rail-to-rail swing while limiting shoot-through current during transitions. Input structure allows differential voltages beyond rails and tolerates continuous short-circuit faults to either supply rail.

Its ground-sensing capability (common-mode down to –0.2V) enables direct sensing of signals referenced to system ground, while the absence of internal differential clamps preserves signal integrity across wide input voltage swings - critical in IR receiver and digital line receiver applications where input transients exceed supply rails.

Key Specifications

Pinout & Package

MAX9075EUK is housed in a 5-pin SOT23 package (JEDEC MO-178AA), footprint-compatible with industry-standard SOT23-5 layouts and suitable for reflow assembly. Package dimensions: 2.9mm × 1.6mm × 1.1mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3691IDBVR and LMV7215M5X, the MAX9075EUK uniquely balances ultra-low 3µA supply current, 580ns speed, and true push-pull rail-to-rail output in SOT23-5 - making it optimal for cost-sensitive, space-constrained, battery-powered systems needing both efficiency and responsiveness.

Availability

MAX9075EUK is available at Aetrix Electronics and suitable for battery-powered systems, IR receivers, digital line receivers, and threshold discriminators requiring stable component supply across industrial, medical, and consumer design cycles.

Supply support for MAX9075EUK 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 power-management ICs for industrial, automotive, communications, and computing markets.

The MAX9075/MAX9077 family was designed specifically for ultra-low-power, single-supply portable applications - prioritizing micropower operation, small footprint, and rail-to-rail functionality without sacrificing speed or robustness.

FAQ

What is the operating supply voltage range for MAX9075EUK?

The MAX9075EUK operates from 2.1V to 5.5V single supply. This range supports direct use with common battery chemistries including single-cell Li-ion (2.7–4.2V), alkaline (0.9–1.5V × 2 or 3), and regulated 3.3V or 5V rails. Operation down to 2.1V ensures functionality during deep battery discharge, while 5.5V absolute maximum rating provides margin against supply transients.

Does MAX9075EUK have rail-to-rail input capability?

The MAX9075EUK does not have full rail-to-rail input - its common-mode input voltage range is specified from –0.2V to VCC – 1.2V. However, it supports ground-sensing (down to –0.2V) and tolerates differential input voltages beyond rails due to absence of internal differential clamps. This enables robust operation with signals referenced to ground or exceeding supply rails, unlike conventional rail-to-rail input comparators.

Can MAX9075EUK drive TTL/CMOS logic directly?

Yes, MAX9075EUK can drive TTL/CMOS logic directly. Its push-pull output delivers rail-to-rail swing with 2mA sink/source capability, producing VOH ≥ VCC – 0.4V and VOL ≤ 0.4V at 2mA load - meeting standard 3.3V and 5V TTL/CMOS input thresholds. No external pull-up resistor is needed, simplifying interface design and reducing component count.

What is the propagation delay specification for MAX9075EUK?

The MAX9075EUK has a typical propagation delay of 580ns (both tPD+ and tPD–) at 100mV input overdrive, VCC = 5V, and TA = +25°C. Delay remains stable across temperature (–40°C to +85°C) and supply voltage (2.1V–5.5V), varying less than ±15% over full conditions - enabling predictable timing in battery voltage monitors and digital line receivers.

Is MAX9075EUK pin-compatible with other SOT23-5 comparators?

MAX9075EUK uses standard SOT23-5 pinout (IN–, IN+, GND, OUT, VCC), matching industry layout conventions. However, functional compatibility depends on electrical specs: its 3µA supply current, –0.2V input range, and push-pull output differ from many alternatives (e.g., open-drain LMV331). Always verify input/output behavior and timing before substitution - MAX9075EUK is not a drop-in replacement for comparators with different output topology or input structure.