Analog Devices Inc./Maxim Integrated MAX4315ESE+

Overview

MAX4315ESE+ from Maxim Integrated is an 8-channel, fixed-gain +2V/V video multiplexer-amplifier optimized for driving back-terminated 75Ω coaxial cables in broadcast and multimedia systems. It delivers 97MHz -3dB bandwidth, 310V/µs slew rate, 40ns channel switching time, and 0.09% differential gain error with rail-to-rail output swing into 150Ω loads.

For engineers reviewing the MAX4315ESE+ datasheet, MAX4315ESE+ pinout, MAX4315ESE+ application, or MAX4315ESE+ equivalent, key selection criteria include fixed +2V/V gain stability under capacitive load, low 10mV_p-p switching transient, shutdown current of 560µA, and compatibility with single +4V to +10.5V or dual ±2V to ±5.25V supplies.

Technical Context

The MAX4315ESE+ integrates an 8-input analog multiplexer with a voltage-feedback amplifier featuring internally trimmed 500Ω thin-film feedback resistors that set precise +2V/V gain. Its architecture maintains constant 1pF input capacitance regardless of channel state, minimizing source loading variation during switching.

Channel selection is controlled via three logic inputs (A0–A2), while SHDN enables high-impedance output and 560µA quiescent current. The amplifier's open-loop output impedance is 0.025Ω, ensuring minimal gain error across typical video loads, and its input common-mode range extends to the negative rail for ground-sensing operation.

Key Specifications

Pinout & Package

MAX4315ESE+ is housed in a 16-pin narrow SO package (body width 3.9mm) with standard 1.27mm pitch, suitable for high-density PCB layouts in video equipment.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video multiplexer-amplifier applications.

Compared with MAX4314EEE+ and MAX4312ESE+, the MAX4315ESE+ provides optimal trade-off for 8-channel, fixed-gain video distribution: it eliminates external gain components, guarantees consistent +2V/V amplification, and maintains broadcast-grade differential gain/phase performance in the smallest possible SO footprint.

Availability

MAX4315ESE+ is available at Aetrix Electronics and suitable for video signal multiplexing, broadcast video distribution, 75Ω cable driving, and video crosspoint switching requiring stable component supply across industrial and professional AV production environments.

Supply support for MAX4315ESE+ 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 and mixed-signal ICs for demanding industrial, communications, and consumer applications.

The MAX4310–MAX4315 family was engineered specifically for high-fidelity video signal routing-combining multichannel analog switching with low-distortion, rail-to-rail amplification to replace discrete mux + op-amp solutions in broadcast, medical imaging, and multimedia equipment.

FAQ

What is the operating supply voltage range for the MAX4315ESE+?

The MAX4315ESE+ operates from a single +4V to +10.5V supply or dual ±2V to ±5.25V supplies. This wide range supports both standard 5V logic systems and higher-voltage video distribution architectures. The device maintains specified AC performance-including 97MHz bandwidth and 310V/µs slew rate-across the entire voltage range, with quiescent current scaling from 7.4mA at +5V to 9.4mA at +10.5V as documented in the DC Electrical Characteristics table.

Does the MAX4315ESE+ require external gain-setting resistors?

No, the MAX4315ESE+ does not require external gain-setting resistors. It features internally trimmed 500Ω thin-film feedback resistors that fix the closed-loop gain at +2V/V (6dB). This eliminates component count, layout sensitivity, and gain drift due to resistor tolerance or temperature coefficient-unlike the adjustable-gain MAX4312ESE+, which relies on external RF/RG networks. The internal resistors are laser-trimmed during wafer test for guaranteed accuracy.

What is the maximum capacitive load the MAX4315ESE+ can drive stably?

The MAX4315ESE+ can drive up to 47pF capacitive load without isolation resistor, as shown in Figure 9 of the datasheet. For larger loads (e.g., >90pF), an external series isolation resistor (R_ISO) is required-27Ω recommended for 90pF per Figure 9-to maintain phase margin and prevent peaking or oscillation. The device's low 0.025Ω open-loop output impedance makes it particularly robust when combined with proper R_ISO and PCB layout per Application Note 13.

How does the MAX4315ESE+ handle channel switching transients?

The MAX4315ESE+ limits switching transients to 10mV_p-p maximum, measured at the output during channel selection. This ultra-low glitch is achieved through matched internal switch timing and charge cancellation circuitry. As confirmed in the Switching Characteristics table and Figure 46 (CHANNEL-SWITCHING TRANSIENT), the transient settles within 25ns, making it suitable for live video switching where visible artifacts must be avoided-such as in broadcast production switchers or medical endoscopy display systems.

Is the MAX4315ESE+ pin-compatible with other devices in the MAX4310–MAX4315 family?

The MAX4315ESE+ shares the same 16-pin narrow SO pinout as MAX4312ESE+ and MAX4314ESD+, but differs from MAX4314EEE+ (QSOP) and MAX4310/MAX4313 (8-pin µMAX/SO). Pin functions are identical across SO-packaged variants: A0–A2, SHDN, V_CC, IN0–IN7, GND, OUT, and V_EE occupy matching positions. However, gain architecture differs-MAX4315ESE+ uses internal +2V/V feedback, while MAX4312ESE+ requires external resistors-so direct substitution requires circuit validation.