Analog Devices Inc. ADM810ZAKS-REEL7

Overview

ADM810ZAKS-REEL7 from Analog Devices is a microprocessor supervisory circuit with active-high push-pull RESET output, 2.32 V reset threshold (±0.07 V over −40°C to +125°C), 140–460 ms power-on reset timeout, 17 μA supply current, and SC70-3 package. It monitors VCC down to 1.0 V and asserts reset during power-up, brownout, and power-down in embedded microcontroller systems.

For engineers reviewing the ADM810ZAKS-REEL7 datasheet, ADM810ZAKS-REEL7 pinout, ADM810ZAKS-REEL7 application, or ADM810ZAKS-REEL7 equivalent, key selection criteria include reset polarity (active-high), low-voltage operation (VCC ≥ 1.0 V), temperature-stable threshold (2.32 V ±0.07 V), SC70-3 footprint compatibility, and industrial-grade (−40°C to +125°C) qualification.

Technical Context

The ADM810ZAKS-REEL7 implements a precision bandgap-based voltage comparator with built-in glitch immunity and an internal 240 ms (typical) reset timer. Its active-high push-pull output drives logic inputs directly without external pull-up components.

It operates across full VCC range of 1.0 V to 5.5 V and maintains valid reset assertion even as VCC falls to 1.0 V - critical for reliable brownout detection in battery-powered or low-voltage microprocessor systems.

Key Specifications

Pinout & Package

ADM810ZAKS-REEL7 uses a 3-lead SC70 (KS-3) package with exposed pad not connected internally. Pin 1 = VCC, Pin 2 = RESET (active-high push-pull), Pin 3 = GND - verified per Figure 4 and Table 4 of Rev. I datasheet.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor supervisory applications.

Compared with MAX809ZTR and TPS3801K23DBVR, ADM810ZAKS-REEL7 provides guaranteed −40°C to +125°C operation, push-pull active-high output eliminating external components, and SC70-3 footprint ideal for space-constrained designs - making it optimal for automotive and industrial edge nodes where reliability and layout efficiency are critical.

Availability

ADM810ZAKS-REEL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical sensors, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature ranges.

Supply support for ADM810ZAKS-REEL7 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADM810 belongs to Analog Devices' microprocessor supervisory IC product line, engineered specifically for robust power-monitoring in harsh-environment embedded systems where precise voltage thresholds and wide-temperature operation are mandatory.

FAQ

What is the reset threshold voltage of the ADM810ZAKS-REEL7?

The ADM810ZAKS-REEL7 has a nominal reset threshold voltage of 2.32 V, with a tolerance of ±0.07 V over the full operating temperature range of −40°C to +125°C. This value is confirmed in Table 3 and Table 1 of the Rev. I datasheet and corresponds to the "Z" suffix designation. The threshold remains stable across VCC variations and ensures reliable monitoring of 2.5 V supply rails with adequate margin.

Does the ADM810ZAKS-REEL7 require an external pull-up resistor on the RESET pin?

No, the ADM810ZAKS-REEL7 features a push-pull RESET output and does not require an external pull-up resistor. Unlike the open-drain ADM803 variant, the ADM810 drives both high and low states actively. This simplifies PCB layout and eliminates potential timing uncertainty introduced by RC time constants associated with pull-up networks - a verified design feature documented in the General Description and Pin Function Descriptions sections.

What is the minimum VCC voltage at which the ADM810ZAKS-REEL7 continues to assert RESET?

The ADM810ZAKS-REEL7 asserts RESET down to VCC = 1.0 V, as specified in the VCC Operating Voltage Range table (Page 3). Below this voltage, the internal circuitry ceases to function reliably. This capability enables robust brownout detection in systems where supply collapse occurs gradually - a key differentiator confirmed in the General Description and Absolute Maximum Ratings sections of the ADM810ZAKS-REEL7 datasheet.

Is the ADM810ZAKS-REEL7 RoHS compliant?

Yes, the "Z" suffix in ADM810ZAKS-REEL7 explicitly denotes RoHS compliance per the Ordering Guide footnote (Page 10). The part meets EU Directive 2011/65/EU and is lead-free, with halogen-free packaging. Marking includes "XX" on the bottom per RoHS-compliant branding convention - verified in the Ordering Guide and revision history of the Rev. I datasheet.

What is the power-on reset timeout duration for the ADM810ZAKS-REEL7?

The ADM810ZAKS-REEL7 provides a minimum power-on reset timeout of 140 ms and a maximum of 460 ms over −40°C to +85°C, with typical value of 240 ms. At higher temperatures (85°C to 125°C), the timeout expands to 100–840 ms. These values are measured from the moment VCC rises above the reset threshold and are guaranteed across process, voltage, and temperature - as detailed in the RESET ACTIVE TIMEOUT PERIOD row of Table 1.