Analog Devices Inc./Maxim Integrated MAX9061EBS+T

Overview

The MAX9061EBS+T from Analog Devices is a nanoPower single comparator with inverting input, open-drain output, and external reference input (0.9V–5.5V), consuming only 100nA max supply current, operating from –40°C to +85°C, and housed in a 1mm × 1mm × 0.6mm 4-bump UCSP package - ideal for battery-powered portable electronics requiring ultra-low quiescent current and minimal board area.

For engineers reviewing the MAX9061EBS+T datasheet, MAX9061EBS+T pinout, MAX9061EBS+T application, or MAX9061EBS+T equivalent, key selection criteria include its inverting-input topology, 100nA max ICC, –0.3V to +5.5V input voltage range independent of supply, high-impedance powered-down inputs, and RF-immune internal filtering for reliable operation in space-constrained, low-voltage systems.

Technical Context

The MAX9061EBS+T implements an inverting-input comparator architecture with open-drain output, requiring an external pullup resistor. Its input stage maintains high impedance even when REF = 0V, enabling flexible power-gating schemes in battery-operated devices.

It features internal hysteresis (±12mV) for noise immunity and supports adaptive threshold detection via variable external reference (0.9V–5.5V). Propagation delay is 15µs at ±100mV overdrive, with input bias current as low as 10nA across its full input range.

Key Specifications

Pinout & Package

MAX9061EBS+T uses a 4-bump UCSP (Ultra-Compact Silicon Package) measuring 1.0mm × 1.0mm × 0.6mm, with bumps on the bottom side and top marking "AFY". The package is RoHS-compliant (+) and includes protective die coating (G45).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV7011DBVR and MAX40005XAT+T, the MAX9061EBS+T uniquely combines inverting-input topology, 100nA max ICC, and externally programmable reference (0.9V–5.5V) in a 1mm² package - making it the only option for adaptive, ultra-long-life, space-constrained threshold detection where input polarity and reference flexibility are design-critical.

Availability

MAX9061EBS+T is available at Aetrix Electronics and suitable for battery voltage monitoring, low-power wake-up detection, adaptive signal thresholding, portable medical sensor interfaces, and other applications requiring stable component supply with guaranteed long-term availability.

Supply support for MAX9061EBS+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, automotive, communications, and consumer markets.

The MAX9061EBS+T belongs to the MAX9060–MAX9064 nanoPower comparator family, designed specifically for ultra-low-power, space-constrained portable electronics such as wearables, medical patches, and IoT edge nodes where micropower operation and minimal footprint are mandatory.

FAQ

What is the function of the REF pin on the MAX9061EBS+T?

The REF pin on the MAX9061EBS+T serves dual roles: it provides the external reference voltage (0.9V–5.5V) for comparison and simultaneously powers the device. It must be bypassed to GND with a 0.1µF capacitor. Unlike supply pins on conventional comparators, REF directly sets the trip point and supplies internal current - making the MAX9061EBS+T fully functional with no separate VCC rail required.

Does the MAX9061EBS+T support inverting or noninverting input configuration?

The MAX9061EBS+T is configured as an inverting-input comparator: the output goes low when the voltage at the IN pin exceeds the voltage at the REF pin. This is confirmed by the device's ordering table, pin description, and typical operating circuits. Its counterpart MAX9060EBS+T uses the same package but features a noninverting input - selecting MAX9061EBS+T ensures correct logic polarity for applications where high input triggers a low output assertion.

What is the maximum sink current capability of the MAX9061EBS+T open-drain output?

The MAX9061EBS+T open-drain output guarantees VOL ≤ 0.20V at ISINK = 25µA (VREF = 0.9V, TA = +25°C) and ≤ 0.50V at ISINK = 1.2mA (VREF = 5.5V). Its absolute maximum output short-circuit duration is 10 seconds. Designers must select an external pullup resistor value that limits sink current within these bounds while meeting logic-high voltage requirements of the driven interface (e.g., MCU GPIO).

Can the MAX9061EBS+T operate with a 0.9V reference voltage and still meet specifications?

Yes - the MAX9061EBS+T is fully specified down to VREF = 0.9V, including input offset voltage (6mV typ), propagation delay (15µs), and supply current (100nA max). This enables direct interfacing with low-voltage microcontrollers and energy-harvesting systems where supply rails drop to 0.9V at end-of-life. The device's input voltage range (–0.3V to +5.5V) remains valid regardless of REF level.

Is the MAX9061EBS+T pin-compatible with other devices in the MAX9060–MAX9064 family?

No - the MAX9061EBS+T shares the same 4-bump UCSP package and pinout (A1=OUT, A2=IN, B1=REF, B2=GND) with all MAX9060–MAX9064 UCSP variants, but functional compatibility requires verification. For example, MAX9062EBS+T has an internal 0.2V reference and noninverting input, so substituting it for MAX9061EBS+T would invert logic behavior and fix the threshold. Pinout compatibility does not imply functional or electrical equivalence.