Texas Instruments TMP116AIDRVR

Overview

TMP116AIDRVR from Texas Instruments is a high-accuracy, low-power digital temperature sensor with SMBus- and I²C-compatible interface, delivering ±0.2°C max error from –10°C to +85°C, 16-bit resolution (0.0078°C/LSB), and operation across –55°C to +125°C - used in medical-grade thermal monitoring, wearables, and cold-chain asset tracking.

For engineers reviewing the TMP116AIDRVR datasheet, TMP116AIDRVR pinout, TMP116AIDRVR application, or TMP116AIDRVR equivalent, this page delivers verified technical context, validated pin functions, real-world use-value per application, and two confirmed alternative parts with documented functional and selection differences.

Technical Context

The TMP116AIDRVR implements a precision sigma-delta ADC with on-chip temperature sensing element, supporting continuous, one-shot, and shutdown functional modes via MOD[1:0] register control. Its internal EEPROM stores configuration and alert thresholds, enabling NIST-traceable calibration without external compensation.

It features programmable averaging (1/8/32/64 conversions), dual alert limit registers, and open-drain ALERT output with polarity control. The device operates at 1.9 V–5.5 V, draws only 3.5 µA in 1-Hz active conversion, and achieves <±0.3°C accuracy up to +125°C without calibration - exceeding Class A RTD performance while consuming <20% of PT100 excitation current.

Key Specifications

Pinout & Package

Package: WSON-6 (DRV), 2.00 mm × 2.00 mm, thermally enhanced with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital temperature sensor applications.

Compared with MAX31875TASD+ and STTS751-2DMR, the TMP116AIDRVR provides superior accuracy over extended temperature ranges, integrated EEPROM for persistent settings, and flexible averaging - making it optimal for medical, industrial, and battery-critical applications where calibration overhead and long-term stability are design constraints.

Availability

TMP116AIDRVR is available at Aetrix Electronics and suitable for medical thermometry, wearable health monitoring, cold-chain asset tracking, gas meter thermal compensation, and test-and-measurement instrumentation requiring stable component supply and long-lifecycle support.

Supply support for TMP116AIDRVR 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision sensing and low-power design.

The TMP116AIDRVR belongs to TI's high-accuracy temperature sensor product line, engineered specifically for applications demanding NIST-traceable performance, minimal self-heating, and seamless integration into resource-constrained I²C systems.

FAQ

What is the accuracy specification of the TMP116AIDRVR across its full operating temperature range?

The TMP116AIDRVR achieves ±0.2°C maximum error from –10°C to +85°C, ±0.25°C from –40°C to +105°C, and ±0.3°C from +105°C to +125°C - all without factory or system-level calibration. At –40°C to +125°C under full supply range (1.9 V–5.5 V), accuracy is ±0.4°C. These values are guaranteed by TI's NIST-traceable production test setup and documented in SBOS740A Rev A.

Does the TMP116AIDRVR support multiple devices on the same I²C bus, and how is addressing configured?

Yes, the TMP116AIDRVR supports up to four devices on a single I²C bus using the ADD0 pin. ADD0 can be tied to GND, V+, SDA, or SCL to select one of four unique 7-bit slave addresses (0x48–0x4B). This eliminates address conflicts in multi-sensor systems like server rack thermal monitoring or multi-zone HVAC controllers - no external address jumpers or configuration registers required.

How does the TMP116AIDRVR reduce measurement noise, and what is the impact on conversion time?

The TMP116AIDRVR reduces noise via programmable averaging (1/8/32/64 conversions), improving repeatability from ±3 LSB (no averaging) to ±1 LSB (8+ averages). Each additional average linearly increases active conversion time: 15.5 ms per conversion, so 8 averages require 124 ms total active time. This trade-off is managed via the AVG[1:0] bits and enables optimized signal-to-noise ratio for applications like precision thermostats.

Can the TMP116AIDRVR replace RTDs such as PT100 in industrial applications, and what are the key advantages?

Yes - the TMP116AIDRVR exceeds Class A RTD accuracy (±0.15°C at 0°C) across –55°C to +125°C while consuming less than 20% of the excitation current required by a PT100. It eliminates matched PCB traces, Kelvin connections, external amplifiers, and calibration routines. Its integrated digital interface, EEPROM storage, and 16-bit resolution make it a drop-in upgrade for RTD-based cold-junction compensation and heat-metering systems.

What is the role of the ALERT pin on the TMP116AIDRVR, and how is its behavior controlled?

The ALERT pin on the TMP116AIDRVR is an open-drain output that signals temperature limit violations. Its behavior is controlled by the T/nA bit (therm/alert mode) and POL bit (active-high/low polarity) in the configuration register. In alert mode, it asserts when temperature exceeds either high or low limits; in therm mode, it latches on high-limit breach and clears only when temperature falls below the low limit - enabling robust overtemperature protection in motor drives and power supplies.