Analog Devices Inc./Maxim Integrated MAX8216CSD

Overview

MAX8216CSD from Maxim Integrated is a precision quad-dedicated +5V/–5V/+15V/–15V and auxiliary voltage monitor IC with five open-drain comparators, internal 1.24V reference (±1% initial accuracy), built-in hysteresis, and 250µA max supply current over temperature - used in microprocessor reset and multi-rail power supervision for industrial controllers and portable instruments.

For engineers reviewing the MAX8216CSD datasheet, MAX8216CSD pinout, MAX8216CSD application, or MAX8216CSD equivalent, this page delivers verified functional identity, exact comparator trip levels (+15V: 13.003–13.566V, –15V: –12.904––13.566V), SO-14 package mapping, and two validated alternative parts with documented technical and application differences.

Technical Context

The MAX8216CSD integrates four fixed-threshold comparators for ±5V and ±15V rails plus one uncommitted auxiliary comparator whose noninverting input (DIN) is externally accessible and inverting input tied to the internal 1.24V reference. All outputs are open-drain, requiring external pull-ups.

It operates across 2.7V–11V supply range, maintains comparator functionality down to 0.8V VDD, and embeds precision resistive networks for rail-specific thresholds - eliminating external resistor dividers for ±5V/±15V monitoring while enabling programmable overvoltage/undervoltage detection via DIN with 16mV typical hysteresis.

Key Specifications

Pinout & Package

MAX8216CSD is housed in a 14-pin SO (Small Outline) package per JEDEC MS-012, with 1.27mm pitch, 8.55–8.75mm body width, and 3.80–4.00mm body height. Pin 1 is marked by bevelled corner or dot; pin count and layout match industry-standard 14-SO footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL7705ACDR and ADM6315-45ARTZ-RL7, the MAX8216CSD uniquely provides simultaneous ±5V/±15V monitoring, an auxiliary comparator with reference output, and built-in hysteresis - making it the only option for compact, self-contained dual-polarity power supervision in space-constrained industrial and portable designs.

Availability

MAX8216CSD is available at Aetrix Electronics and suitable for industrial controllers, portable instruments, mobile radios, and data-acquisition systems requiring stable component supply and long-term manufacturability.

Supply support for MAX8216CSD 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 high-performance analog and mixed-signal ICs for power, sensing, and interface applications, with emphasis on reliability and integration for demanding environments.

The MAX8216CSD belongs to Maxim's dedicated microprocessor voltage monitor product line, engineered specifically for accurate, low-power, multi-rail power supply supervision in industrial, instrumentation, and communications equipment.

FAQ

What is the exact ±15V trip voltage range for MAX8216CSD at full temperature?

The MAX8216CSD +15V trip level ranges from 12.904V to 13.566V, and the –15V trip level ranges from –12.904V to –13.566V, specified across the full operating temperature range (0°C to +70°C for the C-grade MAX8216CSD). These values reflect ±1.5% accuracy and include hysteresis effects inherent to the comparator design.

Can MAX8216CSD monitor its own VDD supply voltage?

Yes, the MAX8216CSD can monitor its own VDD supply using the +5V comparator (Pin 3) for undervoltage detection and the auxiliary comparator (DIN/DOUT) for overvoltage detection. The device functions correctly down to 0.8V VDD, and Figure 4 in the datasheet shows a validated circuit using resistor dividers to scale VDD to appropriate input ranges.

What is the purpose of the PGND pin on MAX8216CSD, and how should it be connected?

The PGND (Pin 8) on MAX8216CSD is the power-supply ground terminal to which VDD must be bypassed via a 0.1µF capacitor. It is internally connected to GND (Pin 2), but separating the bypass path improves noise immunity. For optimal performance, connect PGND directly to the local power ground plane near the bypass capacitor, not through shared traces.

Does MAX8216CSD require external pull-up resistors on its comparator outputs?

Yes, all five comparator outputs (OUT1–OUT4 and DOUT) on MAX8216CSD are open-drain and require external pull-up resistors. Values ≥100kΩ are recommended to minimize supply current; values <2.7kΩ are discouraged when pulling up to VDD. Higher values also reduce susceptibility to output oscillation caused by stray coupling.

How does the built-in hysteresis on the auxiliary comparator affect threshold accuracy in MAX8216CSD?

The MAX8216CSD auxiliary comparator has 16mV typical hysteresis, creating two distinct trip points: one for rising input (VREF + 16mV) and one for falling input (VREF). Threshold accuracy is tighter during falling-edge detection because hysteresis tolerance doesn't compound with reference error - making it preferred for undervoltage detection where precision is critical.