Analog Devices Inc. AD7416ARM

Overview

AD7416ARM from Analog Devices is a dedicated 10-bit digital temperature sensor IC with I²C interface, on-chip ±1°C (at 25°C) temperature sensing, open-drain overtemperature indicator (OTI), and automatic power-down - designed for ambient thermal monitoring in space-constrained industrial and embedded systems.

For engineers reviewing the AD7416ARM datasheet, AD7416ARM pinout, AD7416ARM application, or AD7416ARM equivalent, this page delivers verified specifications, functional context, package mapping, real-world use cases, and validated alternative options - all grounded in Analog Devices Rev. J datasheet and official ordering guide.

Technical Context

The AD7416ARM integrates a bandgap-based temperature sensor, 10-bit successive approximation ADC, I²C-compatible serial interface, programmable TOTI/THYST setpoint registers, and fault-queue logic to suppress spurious OTI triggers. It operates exclusively on Channel 0 (temperature sensor) with no external analog inputs.

All digital control-including OTI polarity (active-high/low), comparator/interrupt mode, and fault queue depth (1–4 samples)-is configured via internal registers accessed through the I²C bus. Conversion is auto-initiated on read/write or triggered externally only in CONVST-start mode (not applicable to AD7416ARM per datasheet).

Key Specifications

Pinout & Package

AD7416ARM is housed in an 8-lead SOIC package (width: 3.9 mm, body height: 1.75 mm) with standard JEDEC MS-012AC footprint and RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar temperature-monitoring applications.

Compared with LM7416ARM, LM75BIMM-3 offers lower resolution and fixed thresholds, while MAX6602ASA+ lacks native OTI output-making AD7416ARM uniquely suited for self-contained, configurable thermal safety in compact industrial designs.

Availability

AD7416ARM is available at Aetrix Electronics and suitable for industrial process control, embedded system thermal management, and automotive cabin electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD7416ARM 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, headquartered in Norwood, MA.

The AD7416ARM belongs to Analog Devices' precision temperature sensor family, engineered specifically for accurate, low-power, I²C-based ambient thermal monitoring in space- and power-constrained applications.

FAQ

What is the primary function of the AD7416ARM?

The AD7416ARM is a dedicated 10-bit digital temperature sensor IC with integrated I²C interface and open-drain overtemperature indicator (OTI). Unlike the AD7417/AD7418, it has no analog input channels - its sole purpose is high-accuracy ambient temperature measurement from −40°C to +125°C. The AD7416ARM uses an on-chip bandgap sensor and successive approximation ADC to deliver ±2°C accuracy at 25°C, making it ideal for thermal monitoring where simplicity and reliability are critical.

Does the AD7416ARM support external analog inputs?

No, the AD7416ARM does not support external analog inputs. Per the Analog Devices Rev. J datasheet, it is explicitly described as a "temperature-monitoring only device" with no AIN pins. Its functional block diagram shows only Channel 0 (the internal temperature sensor) connected to the multiplexer. In contrast, the AD7417 (4-channel) and AD7418 (1-channel) include dedicated analog input pins - but those functions are absent in the AD7416ARM silicon implementation.

How is the overtemperature indicator (OTI) output configured on the AD7416ARM?

The OTI output on the AD7416ARM is an open-drain logic signal that asserts when the measured temperature exceeds the value stored in the TOTI (Temperature Over-Temperature Indicator) register. Its behavior is fully programmable via I²C: users can set OTI polarity (active-high or active-low), select comparator vs. interrupt mode, and define hysteresis using the THYST register. A programmable fault queue counter (1–4 samples) prevents false triggering in electrically noisy environments - a feature confirmed in the AD7416-specific register map and timing diagrams.

What package options are available for the AD7416ARM?

The AD7416ARM is offered exclusively in an 8-lead SOIC package (JEDEC MS-012AC), measuring 4.9 mm × 3.9 mm × 1.75 mm. This is distinct from the AD7417 (16-lead SOIC/TSSOP) and AD7418 (8-lead SOIC/MSOP). The "ARM" suffix in AD7416ARM specifically denotes the SOIC variant per Analog Devices' ordering guide - no MSOP or TSSOP versions exist for the AD7416. Pinout matches Figure 7 and Table 5 in the Rev. J datasheet exactly.

Can multiple AD7416ARM devices share the same I²C bus?

Yes, up to eight AD7416ARM devices can operate on a single I²C bus. This is enabled by three hardware address pins - A0, A1, and A2 - which configure the three LSBs of the 7-bit I²C slave address (base address 0x48). Each unique combination yields a distinct address from 0x48 to 0x4F. This multi-drop capability is explicitly documented in the AD7416 section of the Rev. J datasheet and verified in the "Selectable serial bus address" feature list and Figure 9 connection diagram.