Texas Instruments TMP117MAIDRVT

Overview

TMP117MAIDRVT from Texas Instruments is a high-accuracy, low-power digital temperature sensor with SMBus™- and I²C-compatible interface, ±0.1 °C accuracy from –20 °C to 50 °C, 16-bit resolution (0.0078 °C/LSB), and operation over –55 °C to 150 °C - deployed in electronic thermometers, cold-chain asset tracking, and wearable fitness monitors.

For engineers reviewing the TMP117MAIDRVT datasheet, TMP117MAIDRVT pinout, TMP117MAIDRVT application, or TMP117MAIDRVT equivalent, key selection criteria include medical-grade ASTM E1112/ISO 80601-2-56 compliance, NIST-traceable calibration, programmable alert thresholds, 48-bit general-purpose EEPROM, and RTD-replacement capability for PT100/PT1000 systems.

Technical Context

The TMP117MAIDRVT integrates a precision bandgap-based thermal sensing element with a 16-bit sigma-delta ADC and on-chip oscillator, delivering factory-calibrated temperature data without external compensation. Its digital architecture supports configurable averaging (1–8 conversions), programmable conversion cycle timing, and dual-mode alert functionality (over-temperature or data-ready).

It implements a two-wire interface compliant with both standard-mode (100 kHz) and fast-mode (400 kHz) I²C and SMBus protocols, including timeout detection and open-drain SDA/ALERT with internal pull-up support. The device uses EEPROM-stored configuration and offset correction values, enabling system-level calibration and persistent settings across power cycles.

Key Specifications

Pinout & Package

Package: DRV (WSON-6), 2.00 mm × 2.00 mm, thermally enhanced with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX30205 and ADT7420, the TMP117MAIDRVT uniquely combines full-range medical certification, NIST-traceable calibration, and integrated EEPROM - making it the only option suitable for FDA-submission-ready thermometers and regulated cold-chain validation systems.

Availability

TMP117MAIDRVT is available at Aetrix Electronics and suitable for electronic thermometers, cold chain asset tracking, and wearable fitness monitors requiring stable component supply, long-lifecycle availability, and consistent calibration traceability.

Supply support for TMP117MAIDRVT 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 U.S.-based semiconductor company specializing in analog and embedded processing technologies, with leadership in precision sensing, power management, and industrial interface solutions.

The TMP117 product line delivers ultra-high-accuracy digital temperature sensing for medical, industrial, and environmental applications - designed specifically to replace analog RTD systems and meet stringent regulatory requirements for patient safety and data integrity.

FAQ

What is the maximum accuracy specification of the TMP117MAIDRVT across its full operating temperature range?

The TMP117MAIDRVT achieves ±0.1 °C maximum accuracy from –20 °C to 50 °C, ±0.15 °C from –40 °C to 70 °C, ±0.2 °C from –40 °C to 100 °C, ±0.25 °C from –55 °C to 125 °C, and ±0.3 °C from –55 °C to 150 °C. These values are guaranteed maximum errors under specified operating conditions and reflect factory calibration verified against NIST-traceable standards. The TMP117MAIDRVT maintains this performance without user calibration.

Does the TMP117MAIDRVT support multiple devices on the same I²C bus, and how is addressing configured?

Yes, the TMP117MAIDRVT supports up to four devices on a single I²C bus using the ADD0 pin. ADD0 accepts four logic states - GND, V+, SDA, or SCL - to configure the device's 7-bit slave address as 0x48, 0x49, 0x4A, or 0x4B respectively. This hardware-selectable addressing eliminates software-based address conflicts and enables plug-and-play expansion in multi-sensor systems without modifying firmware. Each TMP117MAIDRVT retains independent configuration and EEPROM content.

How does the TMP117MAIDRVT achieve medical-grade compliance per ASTM E1112 and ISO 80601-2-56?

The TMP117MAIDRVT achieves ASTM E1112 and ISO 80601-2-56 compliance through 100% production testing on NIST-traceable equipment calibrated to ISO/IEC 17025 standards, full-range accuracy validation (–55 °C to 150 °C), and built-in features like programmable alert limits, digital offset correction, and EEPROM-stored calibration data. Unlike generic sensors, the TMP117MAIDRVT provides documented traceability, long-term stability (±0.03 °C drift after 1000 hours at 150 °C), and repeatable performance required for FDA submission - all without requiring system-level requalification.

Can the TMP117MAIDRVT replace platinum RTDs such as PT100 or PT1000 in existing designs?

Yes, the TMP117MAIDRVT is explicitly qualified as an RTD replacement for PT100, PT500, and PT1000 sensors. It matches Class AA RTD accuracy (±0.1 °C) while eliminating the need for precision excitation current sources, matched PCB traces, cold-junction compensation, and complex linearization algorithms. With its 1.8–5.5 V supply, I²C interface, and onboard EEPROM, the TMP117MAIDRVT simplifies thermal subsystem design and reduces BOM count - delivering equivalent metrological performance at <1% of typical RTD system power consumption.

What is the role of the 48-bit EEPROM in the TMP117MAIDRVT, and how is it accessed?

The 48-bit EEPROM in the TMP117MAIDRVT provides user-programmable nonvolatile memory for storing calibration offsets, device identifiers, firmware version stamps, or manufacturing lot codes. It is accessed via standard I²C register reads/writes using dedicated EEPROM command bytes (0x50–0x55), supports 1,000–50,000 write cycles, and guarantees 10–100 years of data retention. Unlike configuration registers, EEPROM contents persist across power cycles and device resets - enabling traceable, field-updatable system calibration without external memory components. The TMP117MAIDRVT uses this memory to store factory-applied NIST-traceable calibration coefficients.