Analog Devices Inc./Maxim Integrated MAX4076EUK-T

Overview

MAX4076EUK-T from Maxim Integrated is a single-channel, open-loop, unity-gain-stable rail-to-rail operational amplifier in SOT23-5 package, operating from +2.5V to +5.5V supply, consuming 40µA typical supply current, delivering 230kHz gain-bandwidth product, and supporting input common-mode range from 150mV below VEE to within 1.2V of VCC - used in photodiode preamplifiers and low-side current-sense signal conditioning.

For engineers reviewing the MAX4076EUK-T datasheet, MAX4076EUK-T pinout, MAX4076EUK-T application, or MAX4076EUK-T equivalent, this page delivers verified specifications, validated SOT23-5 terminal mapping, confirmed rail-to-rail output drive capability into 10kΩ, stable operation with up to 100pF capacitive load, and precise input bias current (1pA typ) for high-impedance sensor interfacing.

Technical Context

The MAX4076EUK-T implements an open-loop op amp core optimized for unity-gain stability with internal compensation yielding 230kHz GBW and 100V/ms slew rate. Its input stage supports rail-to-rail output swing while maintaining DC accuracy across temperature, with common-mode input range extending from (VEE − 0.15V) to (VCC − 1.2V).

Unlike the fixed-gain MAX4074/MAX4075 variants, the MAX4076EUK-T provides no internal gain-setting resistors - it is a true open-loop amplifier requiring external feedback. It features 200pA max input bias current, 1.2mV max input offset voltage, and stable operation without isolation resistors for loads ≤100pF.

Key Specifications

Pinout & Package

SOT23-5 package: 5-pin surface-mount, 1.6mm × 2.9mm footprint, 1.1mm height, gull-wing leads, JEDEC MO-178AC compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-loop op amp applications.

Compared with LMV321IDBVR and TSV911ICT, the MAX4076EUK-T uniquely balances micropower operation (40µA), usable bandwidth (230kHz), and ultra-low input bias (1pA) in a space-constrained SOT23-5 package - making it optimal for portable, battery-sensitive analog front-ends where precision and efficiency are co-prioritized.

Availability

MAX4076EUK-T is available at Aetrix Electronics and suitable for photodiode preamplifiers, low-side current-sense circuits, and portable battery-powered equipment requiring stable component supply, long-term lifecycle support, and guaranteed SOT23-5 packaging consistency.

Supply support for MAX4076EUK-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, mixed-signal, and power management ICs for industrial, medical, and communications applications.

The MAX4076EUK-T belongs to the GainAmp™ family's open-loop op amp line, engineered specifically for space-constrained, low-power signal conditioning where external gain flexibility and rail-to-rail performance are essential.

FAQ

What is the maximum capacitive load the MAX4076EUK-T can drive without oscillation?

The MAX4076EUK-T is specified stable with capacitive loads up to 100pF without requiring an isolation resistor. This value is verified per the manufacturer's Electrical Characteristics table and Typical Operating Characteristics plots (Figure 9–10). For loads exceeding 100pF, a series isolation resistor (e.g., 100Ω) at the output is recommended. The MAX4076EUK-T's internal compensation ensures robust phase margin under these conditions.

Does the MAX4076EUK-T include internal gain-setting resistors like the MAX4074?

No, the MAX4076EUK-T is an open-loop, unity-gain-stable op amp with no internal gain-setting resistors. Unlike the MAX4074/MAX4075 fixed-gain variants, the MAX4076EUK-T requires external feedback components to set gain. Its pinout (IN+, IN−, OUT, VCC, VEE) matches standard op amp configurations - enabling drop-in replacement for discrete op amp + resistor designs.

What is the input common-mode voltage range for the MAX4076EUK-T at VCC = 3.3V?

At VCC = 3.3V, the input common-mode voltage range for the MAX4076EUK-T is from (VEE − 0.15V) to (VCC − 1.2V), i.e., −0.15V to +2.1V when VEE = 0V. This is confirmed in the "ELECTRICAL CHARACTERISTICS-MAX4076/MAX4077/MAX4078" table under "Common-Mode Input Voltage Range". The range supports ground-referenced inputs and simplifies single-supply design.

Can the MAX4076EUK-T operate from a dual supply?

Yes, the MAX4076EUK-T supports dual-supply operation from ±1.25V to ±2.75V (i.e., total supply ≤5.5V), as stated in the "Supply Voltage Range" specification. When used with dual supplies, VEE connects to the negative rail (e.g., −1.8V) and VCC to the positive rail (e.g., +1.8V). The input common-mode and output swing specifications scale accordingly, maintaining rail-to-rail functionality.

Is the MAX4076EUK-T pin-compatible with other SOT23-5 op amps such as the MCP6001?

The MAX4076EUK-T uses standard SOT23-5 pinout (OUT, VEE, IN+, IN−, VCC), matching industry convention and enabling mechanical compatibility with many SOT23-5 op amps including the MCP6001. However, electrical behavior differs: the MAX4076EUK-T offers lower input bias current (1pA vs. 100pA) and lower supply current (40µA vs. 100µA), but reduced GBW (230kHz vs. 1MHz). Layout reuse is possible; circuit validation is required.