Analog Devices Inc. ADM810SAKSZ-REEL7

Overview

ADM810SAKSZ-REEL7 from Analog Devices is a microprocessor supervisory circuit with active-high push-pull RESET output, 2.93 V reset threshold, and operation down to 1.0 V VCC. It provides 240 ms (typical) power-on reset timeout, consumes 17 μA typical supply current, and is qualified for −40°C to +125°C industrial/automotive environments. It monitors 3.3 V supply rails in embedded controllers and intelligent instruments.

For engineers reviewing the ADM810SAKSZ-REEL7 datasheet, ADM810SAKSZ-REEL7 pinout, ADM810SAKSZ-REEL7 application, or ADM810SAKSZ-REEL7 equivalent, key selection criteria include reset polarity (active-high), SC70-3 package footprint, guaranteed operation at VCC ≥ 1.0 V, and temperature-stable 2.93 V threshold with ±30 ppm/°C drift.

Technical Context

The ADM810SAKSZ-REEL7 integrates a precision voltage comparator with built-in glitch immunity and an internal 240 ms reset timer. Its reference circuit maintains accuracy across −40°C to +125°C, enabling reliable brownout detection even during fast transients on VCC.

Unlike open-drain variants (e.g., ADM803), this device uses a push-pull output stage capable of sourcing 150 μA at 1.8 V < VCC < VTH(min), eliminating need for external pull-up resistors. Reset assertion remains valid down to VCC = 1.0 V, supporting low-voltage system initialization.

Key Specifications

Pinout & Package

ADM810SAKSZ-REEL7 is housed in a 3-lead SC70 (KS-3) package, measuring 2.00 mm × 1.25 mm × 0.9 mm with 0.65 mm lead pitch. The package is RoHS-compliant and optimized for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX809SASD+T and TPS3808G33DBVR, ADM810SAKSZ-REEL7 uniquely combines 2.93 V precision threshold, −40°C to +125°C qualification, SC70-3 footprint, and active-high push-pull output - making it optimal for space-constrained, high-reliability 3.3 V systems requiring guaranteed reset behavior across extreme temperatures.

Availability

ADM810SAKSZ-REEL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADM810SAKSZ-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, serving industrial, automotive, communications, and healthcare markets.

The ADM810SAKSZ-REEL7 belongs to Analog Devices' microprocessor supervisory circuit family, designed specifically for robust power-on reset generation and brownout protection in mission-critical embedded systems operating across wide temperature and voltage ranges.

FAQ

What is the reset polarity and output structure of ADM810SAKSZ-REEL7?

The ADM810SAKSZ-REEL7 features an active-high push-pull RESET output. Unlike open-drain variants (e.g., ADM803), it does not require an external pull-up resistor. RESET goes high when VCC falls below 2.93 V and remains high for 240 ms after VCC rises above the threshold. This behavior is confirmed in the Functional Block Diagram and Pin Descriptions section of the ADM803/ADM809/ADM810 datasheet Rev. I.

Does ADM810SAKSZ-REEL7 operate reliably at VCC = 1.0 V?

Yes, ADM810SAKSZ-REEL7 guarantees valid RESET assertion down to VCC = 1.0 V, as specified in the Absolute Maximum Ratings and General Description sections. Its internal circuitry remains functional and the push-pull output maintains defined logic levels even at this minimum supply voltage, enabling robust brownout response in low-voltage systems.

What package type and dimensions does ADM810SAKSZ-REEL7 use?

ADM810SAKSZ-REEL7 uses the 3-lead SC70 (KS-3) package per JEDEC standard, with dimensions 2.00 mm × 1.25 mm × 0.9 mm and 0.65 mm lead pitch. This is explicitly stated in the Ordering Guide and Outline Dimensions (Figure 15) of the ADM803/ADM809/ADM810 datasheet Rev. I.

How does the 2.93 V reset threshold of ADM810SAKSZ-REEL7 relate to 3.3 V supply monitoring?

The 2.93 V threshold provides ~11% headroom below nominal 3.3 V, accommodating typical ±5% supply tolerance and dynamic droop during load transients. This ensures reset is asserted before the microcontroller's minimum operating voltage is violated, preventing undefined operation - a design principle validated in the Benefits of an Accurate Reset Threshold section.

Is ADM810SAKSZ-REEL7 RoHS compliant and what does the 'Z' suffix indicate?

Yes, ADM810SAKSZ-REEL7 is RoHS compliant. Per the Ordering Guide footnote 1, the 'Z' suffix denotes RoHS compliance. The device meets EU Directive 2011/65/EU and is lead-free, with markings confirming compliance per manufacturer documentation.