Analog Devices Inc./Maxim Integrated MAX8216CSD+T

Overview

MAX8216CSD+T 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 for microprocessor supply supervision in industrial controllers and portable instrumentation.

For engineers reviewing the MAX8216CSD+T datasheet, MAX8216CSD+T pinout, MAX8216CSD+T application, or MAX8216CSD+T equivalent, key selection criteria include ±1.5% trip accuracy on ±15V rails, 14-pin SO package compatibility, open-drain output drive capability down to 0.8V VDD, and auxiliary comparator programmability for overvoltage/undervoltage detection with hysteresis.

Technical Context

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

It operates across a 2.7V–11V supply range, maintains stable reference regulation down to 0.8V VDD, and delivers 20µs typical response time with 30mV overdrive. Hysteresis is fully integrated - eliminating external resistor networks - with ±1.5% trip accuracy over −40°C to +85°C for ±15V inputs and ±1.25% for +5V.

Key Specifications

Pinout & Package

MAX8216CSD+T is housed in a 14-pin plastic small-outline (SO) package, 3.9mm × 8.7mm body, 1.27mm pitch, lead-free compliant (RoHS). Pin 1 marked by beveled corner; pins 1–7 on top row left-to-right, pins 8–14 on bottom row right-to-left.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL7705ACD and ADM6315-31ARTZ-RL7, the MAX8216CSD+T uniquely supports simultaneous ±5V/±15V monitoring with programmable auxiliary detection - enabling consolidated supervision of complex analog/digital power domains without external components or firmware intervention.

Availability

MAX8216CSD+T is available at Aetrix Electronics and suitable for industrial controllers, portable instrumentation, mobile radios, and data-acquisition systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MAX8216CSD+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 and mixed-signal ICs for industrial, automotive, and communications applications, with emphasis on high-reliability, low-power, and integration-rich solutions.

The MAX8216CSD+T belongs to Maxim's microprocessor supervisory product line, engineered specifically for multi-rail voltage monitoring in systems requiring deterministic power-fault response, minimal external components, and wide-temperature operation.

FAQ

What is the operating temperature range for the MAX8216CSD+T?

The MAX8216CSD+T is rated for 0°C to +70°C ambient operation, matching the 'C' grade designation in its part number. It maintains specified trip accuracy and reference stability across this range, with electrical characteristics validated per the MAX8216 datasheet Table "ELECTRICAL CHARACTERISTICS" under TA = TMIN to TMAX conditions. This makes the MAX8216CSD+T suitable for commercial and light-industrial environments where extended temperature grades are not required.

How does the auxiliary comparator (DIN/DOUT) function in the MAX8216CSD+T?

The auxiliary comparator in the MAX8216CSD+T features a noninverting input (DIN) accessible externally and an inverting input tied internally to the 1.24V reference. By applying a scaled version of the monitored voltage to DIN via a resistor divider, users can configure overvoltage or undervoltage detection at custom thresholds. The MAX8216CSD+T's built-in hysteresis ensures stable switching, and DOUT's open-drain output supports flexible interfacing - making it ideal for adaptive fault detection beyond the four fixed rails.

Can the MAX8216CSD+T monitor its own VDD supply?

Yes - the MAX8216CSD+T supports self-supervision. Its +5V comparator and auxiliary comparator can both monitor the VDD rail. For example, Figure 4 in the MAX8216 datasheet shows using the +5V comparator for undervoltage detection and the DIN/DOUT pair for overvoltage detection on the same VDD line. The MAX8216CSD+T operates down to 0.8V VDD, enabling reliable fault signaling even during deep brownout conditions - critical for fail-safe behavior in battery-powered systems.

What are the absolute maximum input voltage ratings for the MAX8216CSD+T supply pins?

The MAX8216CSD+T specifies absolute maximum ratings of −0.3V to +12V on VDD, −0.3V to (VDD + 0.3V) on VREF and DOUT, and ±50V on −5V, +15V, and −15V inputs. The +5V input withstands up to +20V. Exceeding these limits risks permanent damage. Notably, while inputs tolerate high voltages, reference stability is preserved only if +5V is limited to +17V, −5V/−15V to +1V, and +15V to +60V - per the "Input Voltage Limitation" section of the MAX8216 datasheet.

Is the MAX8216CSD+T pin-compatible with the MAX8215 series?

No - the MAX8216CSD+T is not pin-compatible with MAX8215 variants. Although both share identical 14-pin SO packaging and pinout numbering, their dedicated rail inputs differ: Pins 5 and 6 monitor +12V/−12V in MAX8215 but +15V/−15V in MAX8216CSD+T. Swapping them without circuit revision causes incorrect trip-point behavior. The MAX8216CSD+T must be used only in designs explicitly targeting ±15V rail supervision, as confirmed in the "Pin Description" and "Ordering Information" sections of the MAX8216 datasheet.