Analog Devices Inc./Maxim Integrated MAX410CSA

Overview

The MAX410CSA from Maxim Integrated is a single, precision, low-noise operational amplifier optimized for high-speed, low-voltage systems. It delivers 2.4nV/√Hz input voltage-noise density at 1kHz, 28MHz unity-gain bandwidth, and 4.5V/µs slew rate while operating from ±2.4V to ±5V supplies and consuming only 2.5mA per amplifier. It is used in ultra-low-noise instrumentation amplifiers and infrared detector front-ends where signal fidelity and noise floor are critical.

For engineers reviewing the MAX410CSA datasheet, MAX410CSA pinout, MAX410CSA application, or MAX410CSA equivalent, key selection criteria include its guaranteed 2.4nV/√Hz noise floor at 1kHz, ±250µV max input offset voltage (C-grade), SO-8 package compatibility with industry-standard op-amp footprints, and stability driving up to 3900pF capacitive loads in unity-gain configuration.

Technical Context

The MAX410CSA employs a bipolar input stage engineered to minimize voltage noise without compromising DC accuracy or AC stability - achieving <2.4nV/√Hz at 1kHz while maintaining ±250µV max VOS and 115dB min open-loop gain. Its design omits input current-limiting resistors to preserve noise performance, relying instead on back-to-back clamp diodes for ±0.1V differential input protection.

It supports flexible supply operation from ±2.4V to ±5V, delivers ±3.6V output swing into 2kΩ from ±5V rails, and remains unity-gain stable with capacitive loads up to 3900pF - enabling direct use in wideband sensor interfaces and precision measurement front-ends without external compensation.

Key Specifications

Pinout & Package

MAX410CSA is housed in an 8-pin SO (Small Outline) package compliant with JEDEC MS-012, with standard single-op-amp pinout and exposed pad not present (TDFN variant has exposed paddle; SO variant does not).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise, precision op amp applications.

Compared with OP27GS and LT1007CN8#PBF, the MAX410CSA uniquely balances ultra-low noise (2.4nV/√Hz), low supply current (2.5mA), and ±2.4V minimum operation - making it optimal for battery-powered, wideband sensor interfaces where power, noise, and supply headroom are jointly constrained.

Availability

MAX410CSA is available at Aetrix Electronics and suitable for low-noise instrumentation amplifiers, infrared detector front-ends, and high-fidelity audio preamplifiers requiring stable component supply across production lifecycles.

Supply support for MAX410CSA 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for industrial, communications, and consumer applications.

The MAX410CSA belongs to Maxim's precision op amp product line, designed specifically for applications demanding ultra-low noise, high speed, and low-voltage operation in measurement and sensing systems.

FAQ

What is the maximum capacitive load the MAX410CSA can drive stably in unity-gain configuration?

The MAX410CSA remains unity-gain stable when driving capacitive loads up to 3900pF, as verified in the Typical Operating Characteristics section (Figure 6a/b). This eliminates the need for external isolation resistors in many sensor buffer applications. For loads exceeding 3900pF, a series output resistor (e.g., 10Ω) is recommended to restore phase margin. The MAX410CSA's robust capacitive-load drive capability stems from its internally compensated architecture optimized for wideband stability.

Does the MAX410CSA require external offset nulling in typical applications?

No - the MAX410CSA has a maximum input offset voltage of ±250µV over 0°C to +70°C, which is sufficiently low for most precision applications without trimming. Pins 1 and 6 are provided for optional external nulling (±450µV adjustment range) but are left unconnected in standard implementations. External nulling is only necessary in systems requiring sub-50µV total offset, such as high-resolution weigh scale front-ends or calibrated reference buffers.

Can the MAX410CSA operate from a single 5V supply?

Yes - although characterized for ±5V operation, the MAX410CSA supports single-supply operation down to 4.8V total supply (e.g., 0V and +4.8V). Input common-mode range extends to within 1.5V of each rail, and output swing reaches within 1.4V of V+ and 1.3V of V− with a 2kΩ load. For true rail-to-rail input/output, a different amplifier family would be required; the MAX410CSA is optimized for split-supply, low-noise performance.

How does the MAX410CSA's noise performance compare between 10Hz and 1kHz?

At 1kHz, the MAX410CSA guarantees ≤2.4nV/√Hz voltage-noise density. At 10Hz, its 1/f noise corner is 90Hz, resulting in higher integrated noise - approximately 1.5nV/√Hz at 100Hz and rising toward 7nV/√Hz near 10Hz. The 0.1Hz–10Hz peak-to-peak noise is typically 120nV, measured per Figure 3 in the datasheet. Designers using the MAX410CSA in DC-coupled, low-frequency applications must account for this 1/f contribution in total noise budgets.

Is the MAX410CSA pin-compatible with other SO-8 op amps like the OP27 or AD797?

The MAX410CSA uses the industry-standard single-op-amp SO-8 pinout (IN+, IN−, V−, OUT, V+, NULL, NULL, N.C.), matching OP27, LT1007, and AD797 footprints. However, Pin 8 is No Connect in MAX410CSA (not used), whereas AD797 uses Pin 8 for shutdown. Electrical compatibility requires verification of supply range, noise, and drive requirements - mechanical drop-in is possible, but functional equivalence is not guaranteed without circuit-level validation.