Texas Instruments TMP117NAIDRVT

Overview

TMP117NAIDRVT from Texas Instruments is a high-accuracy, low-power digital temperature sensor with SMBus™- and I²C-compatible interface, ±0.1 °C max accuracy from –20 °C to 50 °C, 16-bit resolution (0.0078 °C/LSB), and operating range of –55 °C to 150 °C - deployed in electronic thermometers, cold chain asset tracking, and wearable fitness monitors.

For engineers reviewing the TMP117NAIDRVT datasheet, TMP117NAIDRVT pinout, TMP117NAIDRVT application, or TMP117NAIDRVT equivalent, key selection considerations 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/PT500/PT1000 systems.

Technical Context

The TMP117NAIDRVT integrates a precision bandgap-based thermal sensing element with a 16-bit sigma-delta ADC, internal oscillator, and register-mapped control logic. Its two-wire interface supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C/SMBus timing, with open-drain SDA and ALERT pins requiring external pullups.

It implements configurable averaging (1/2/4/8 conversions), programmable conversion cycle timing, and digital offset correction. The device powers up in continuous conversion mode by default, with factory-programmed 1-Hz cycle and 8-averages enabled - delivering ±1 LSB repeatability and <±0.3 °C error across its full –55 °C to 150 °C range.

Key Specifications

Pinout & Package

The TMP117NAIDRVT uses the DRV (WSON-6) package: 2.00 mm × 2.00 mm, 0.75-mm height, thermally enhanced exposed pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-accuracy temperature sensing applications.

Compared with MAX30205 and ADT7420, the TMP117NAIDRVT uniquely combines medical-grade certification, full –55 °C to 150 °C operation, NIST-traceable calibration, and on-chip EEPROM - making it the only option qualified for both clinical thermometry and harsh-environment industrial monitoring without design compromises.

Availability

TMP117NAIDRVT is available at Aetrix Electronics and suitable for electronic thermometers, cold chain asset tracking, and wearable fitness monitors requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TMP117NAIDRVT 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 and embedded processing technologies, with decades of expertise in precision sensing and low-power signal conditioning.

The TMP117 product line was designed specifically for applications demanding clinical-grade thermal accuracy and regulatory compliance - including electronic patient thermometers, portable diagnostics, and high-reliability industrial monitoring systems.

FAQ

What is the maximum operating temperature range specified for the TMP117NAIDRVT?

The TMP117NAIDRVT is fully specified from –55 °C to 150 °C. Its accuracy degrades gradually across this range: ±0.1 °C (–20 °C to 50 °C), ±0.25 °C (–55 °C to 125 °C), and ±0.3 °C (–55 °C to 150 °C). This extended range enables deployment in automotive under-hood modules, industrial motor drives, and sterilization equipment where ambient temperatures exceed 100 °C - all while maintaining traceable calibration.

Does the TMP117NAIDRVT require external calibration to achieve its published accuracy?

No, the TMP117NAIDRVT does not require external calibration to achieve its published accuracy. Each unit is 100% production-tested on a NIST-traceable setup calibrated to ISO/IEC 17025 standards. The ±0.1 °C accuracy from –20 °C to 50 °C is guaranteed at shipment - enabling immediate integration into ASTM E1112-compliant electronic thermometers without system-level trimming or lookup-table compensation.

How does the TMP117NAIDRVT support RTD replacement in temperature measurement systems?

The TMP117NAIDRVT replaces platinum RTDs (PT100/PT500/PT1000) by matching Class AA RTD accuracy (±0.1 °C at 0 °C) while eliminating excitation circuitry, precision references, matched PCB traces, and complex linearization algorithms. Its integrated 16-bit ADC, digital offset correction, and 48-bit EEPROM allow direct substitution - reducing bill-of-materials cost and PCB area while cutting power consumption to <1% of typical RTD solutions.

What interface protocols does the TMP117NAIDRVT support, and what are the timing constraints?

The TMP117NAIDRVT supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C and SMBus protocols. It complies with JEDEC JESD36 timing: tSU;DAT ≥ 100 ns, tHD;DAT = 0 ns, tLOW ≥ 1300 ns, and tHIGH ≥ 600 ns. The device supports up to four units on a single bus via ADD0 pin addressing (0x48–0x4B), and its open-drain SDA/ALERT pins require external pullups per I²C specification.

Can the TMP117NAIDRVT operate from a 1.7-V supply, and under what conditions?

The TMP117NAIDRVT supports 1.7 V minimum supply voltage only within the restricted temperature range of –55 °C to 70 °C. For operation across its full –55 °C to 150 °C range, the minimum supply is 1.8 V. This distinction is documented in Section 6.3 (Recommended Operating Conditions) of the datasheet - ensuring robust performance in battery-powered applications where voltage sags occur near end-of-life.