Analog Devices Inc. ADM6710QARJZ-REEL7

Overview

ADM6710QARJZ-REEL7 from Analog Devices is a low-voltage, high-accuracy quad-supply supervisory IC with three adjustable voltage monitoring inputs (IN1, IN3, IN4) and VCC-powered operation. It features a 0.62 V internal reference (±1.5%), 200 ms typical reset timeout, open-drain active-low RESET output with 10 µA internal pull-up to VCC, and operates across −40°C to +125°C for automotive-grade microprocessor system monitoring.

For engineers reviewing the ADM6710QARJZ-REEL7 datasheet, ADM6710QARJZ-REEL7 pinout, ADM6710QARJZ-REEL7 application, or ADM6710QARJZ-REEL7 equivalent, key selection criteria include its VCC-powered architecture (not powered from monitored rail), triple adjustable thresholds down to 0.62 V, guaranteed RESET validity down to VCC = 2 V, and SOT-23-6 packaging for space-constrained embedded control systems.

Technical Context

The ADM6710QARJZ-REEL7 uses an internal 0.62 V precision reference to enable resistor-divider-based monitoring of arbitrary supply voltages via IN1, IN3, and IN4. Its reset assertion logic triggers when any monitored input falls below its threshold, with built-in 0.3% hysteresis and immunity to transients ≤200 µs at 100 mV overdrive.

Unlike standard ADM6710 variants powered from IN2, the ADM6710Q variant draws power exclusively from VCC (Pin 2), decoupling supervision functionality from monitored rails. RESET remains valid only while VCC ≥ 2 V, and the open-drain output pulls low to GND with internal 10 µA pull-up to VCC - eliminating need for external pull-up in many logic-interface scenarios.

Key Specifications

Pinout & Package

ADM6710QARJZ-REEL7 is housed in a RoHS-compliant 6-lead SOT-23 package (JEDEC MO-178-AB, package option RJ-6), measuring 2.90 mm × 1.60 mm × 1.15 mm, optimized for automated placement and high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-supply supervisory applications.

Compared with MAX6361KA29+T and TPS3808G33DBVR, the ADM6710QARJZ-REEL7 uniquely supports three independently scalable voltage monitors with VCC-only power architecture - enabling robust supervision of modern multi-rail SoC platforms where core voltages fall below traditional supervisor operating limits.

Availability

ADM6710QARJZ-REEL7 is available at Aetrix Electronics and suitable for automotive ADAS ECUs, industrial PLC controllers, and medical imaging power modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADM6710QARJZ-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, Inc. 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 ADM6710 family was designed specifically for high-accuracy, multi-rail power supervision in thermally demanding embedded systems - emphasizing low quiescent current, glitch immunity, and flexible threshold configuration without external timing components.

FAQ

What is the minimum VCC voltage required for ADM6710QARJZ-REEL7 to guarantee RESET output validity?

The ADM6710QARJZ-REEL7 requires VCC ≥ 2.0 V to ensure the RESET output remains functionally valid. Below this level, the internal circuitry cannot maintain correct logic state on the open-drain output - a critical distinction from IN2-powered ADM6710 variants, which remain valid down to 1 V on IN1 or IN2. This 2 V minimum directly supports supervision of low-voltage cores while preserving reset reliability.

Can ADM6710QARJZ-REEL7 monitor a 1.0 V supply, and how is the threshold set?

Yes, ADM6710QARJZ-REEL7 can monitor a 1.0 V supply using its adjustable 0.62 V internal reference. A resistor divider (e.g., R1 = 619 kΩ, R2 = 1 MΩ) scales the 1.0 V rail to 0.62 V at IN1, satisfying the threshold condition. The datasheet confirms ±1.5% reference accuracy and ≤0.4 µA input bias current - enabling precise, low-loading monitoring without external op-amps or comparators.

Does ADM6710QARJZ-REEL7 require an external pull-up resistor on the RESET pin?

No, ADM6710QARJZ-REEL7 includes a 10 µA internal pull-up to VCC on the open-drain RESET pin, eliminating the need for an external pull-up in most applications. This feature simplifies interface with 1.8 V, 3.3 V, or 5 V logic families. An external pull-up is only necessary if higher sink current (>2 mA) or faster rise time is required - and even then, the internal circuit prevents reverse current flow into VCC.

How does the reset timeout period behave across temperature for ADM6710QARJZ-REEL7?

The ADM6710QARJZ-REEL7 specifies a 200 ms typical reset timeout with ±30% variation (140–280 ms) over −40°C to +125°C. Figure 9 in the datasheet shows minimal drift - approximately ±2 ms deviation across the full range - confirming factory trimming and stable RC timing. This consistency ensures predictable processor initialization timing regardless of thermal environment.

What happens to unused adjustable inputs (IN1, IN3, IN4) on ADM6710QARJZ-REEL7?

Unused adjustable inputs on ADM6710QARJZ-REEL7 must not float or connect to GND. Per datasheet Section "Input Configuration", each unused INx should be tied to a voltage >0.62 V - typically VCC - through a 1 MΩ series resistor to limit bias current. Failure to do so risks false reset assertion due to noise coupling or undefined comparator states.