Analog Devices Inc. ADM6711RAKS-REEL7

Overview

ADM6711RAKS-REEL7 from Analog Devices is a precision microprocessor supervisory circuit in 4-lead SC70 package, designed to monitor 2.5 V power supplies with a reset threshold of 2.63 V (typ), 140 ms minimum reset timeout, push-pull active-low RESET output, and manual reset input. It asserts reset down to 1 V VCC and consumes only 12 μA typical supply current, enabling reliable power-up sequencing in portable microcontroller systems.

For engineers reviewing the ADM6711RAKS-REEL7 datasheet, ADM6711RAKS-REEL7 pinout, ADM6711RAKS-REEL7 application, or ADM6711RAKS-REEL7 equivalent, key selection criteria include its 2.63 V threshold accuracy over −40°C to +125°C, glitch-immune MR input with 100 ns noise rejection, push-pull output eliminating external pull-up components, and SC70 footprint for space-constrained embedded designs.

Technical Context

The ADM6711RAKS-REEL7 integrates a precision voltage reference, comparator with 30 ppm/°C temperature coefficient, and a 240 ms typical internal timer for reset assertion after VCC rise above threshold. Its debounced manual reset (MR) input accepts ≥1 μs pulses and ignores transients <100 ns, ensuring robust operation in electrically noisy environments.

Reset generation is fully autonomous: the device holds RESET low during power-up until VCC exceeds 2.63 V (typ), then maintains it for ≥140 ms to allow supply stabilization. The push-pull output drives logic directly without external components, supporting sink currents up to 3.2 mA at VTH min while maintaining <0.3 V low-level voltage.

Key Specifications

Pinout & Package

ADM6711RAKS-REEL7 uses a 4-lead SC70 (KS-4) package - 2.2 mm × 1.35 mm × 0.9 mm body, 0.65 mm lead pitch - optimized for high-density portable electronics.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326XR29D3+T and TPS3808G12DBVR, ADM6711RAKS-REEL7 delivers precise 2.63 V monitoring in the smallest footprint with lowest quiescent current and integrated push-pull drive-making it optimal for compact, battery-sensitive 2.5 V microcontroller systems where manual reset and deep brownout detection are required.

Availability

ADM6711RAKS-REEL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, portable medical sensor nodes, smart energy meter MCU subsystems, and other applications requiring stable component supply with guaranteed long-term availability.

Supply support for ADM6711RAKS-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 since 1965.

The ADM6711 family was engineered specifically for space- and power-constrained microprocessor supervision, delivering precision voltage monitoring, glitch immunity, and minimal footprint in SC70 packaging for next-generation portable and ruggedized embedded systems.

FAQ

What is the exact reset threshold voltage of ADM6711RAKS-REEL7 and how does it vary with temperature?

The ADM6711RAKS-REEL7 has a nominal reset threshold of 2.63 V at 25°C, with a guaranteed range of 2.55 V to 2.70 V over −40°C to +85°C and 2.52 V to 2.74 V over 85°C to +125°C. Its temperature coefficient is 30 ppm/°C, meaning threshold drift is tightly controlled-less than ±10 mV across the full industrial temperature range-ensuring consistent 2.5 V supply monitoring without design margining.

Does ADM6711RAKS-REEL7 require an external pull-up resistor on the RESET pin?

No, ADM6711RAKS-REEL7 features a push-pull RESET output, so no external pull-up resistor is needed. The output actively drives high (≥0.8×VCC) and low (<0.3 V at 3.2 mA sink) without external components-reducing BOM count, saving PCB area, and eliminating potential weak-pull issues that could delay microprocessor release from reset.

Can ADM6711RAKS-REEL7 monitor power supplies below 2.5 V, such as 1.8 V or 1.2 V rails?

No-ADM6711RAKS-REEL7 is factory-trimmed to a 2.63 V threshold and is not specified for monitoring supplies significantly below that level. For 1.8 V or 1.2 V rails, Analog Devices offers other members of the ADM67xx family (e.g., ADM6711ZAKS-REEL7 with 2.32 V threshold) or dedicated low-voltage supervisors like the ADM6315 series. Using ADM6711RAKS-REEL7 outside its 2.5 V–5 V target range risks premature or missed reset assertion.

What is the minimum VCC voltage at which ADM6711RAKS-REEL7 continues to assert RESET reliably?

ADM6711RAKS-REEL7 guarantees reset assertion down to 1.0 V VCC, meaning it will hold the RESET output low even as the monitored supply collapses to 1 V. This capability ensures fail-safe behavior during deep brownouts-critical in battery-powered systems where the 2.5 V rail may sag below 2.0 V during end-of-life discharge, and the microcontroller must remain held in reset until complete power loss.

How does the manual reset (MR) input of ADM6711RAKS-REEL7 behave during power-up and normal operation?

The MR input of ADM6711RAKS-REEL7 is active-low and debounced: it ignores pulses shorter than 100 ns (typical) and responds reliably to pulses ≥1 μs. During power-up, MR can be used to force reset regardless of VCC level; once operational, pulling MR low asserts RESET immediately and holds it low for 240 ms (typical) after MR returns high-enabling clean system recovery without requiring software intervention or external timing circuits.