Texas Instruments TMP117AIDRVR

Overview

TMP117AIDRVR 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 TMP117AIDRVR datasheet, TMP117AIDRVR pinout, TMP117AIDRVR application, or TMP117AIDRVR 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 3.5 μA active current at 1-Hz conversion cycle.

Technical Context

The TMP117AIDRVR integrates a precision bandgap-based thermal sensing element with a 16-bit sigma-delta ADC, internal oscillator, and register-mapped control logic. It supports continuous and one-shot conversion modes, configurable averaging (1–8 samples), and digital offset correction for system-level calibration.

Its two-wire interface complies with both standard-mode (100 kHz) and fast-mode (400 kHz) I²C timing, includes open-drain SDA/ALERT pins with pullup requirements, and allows up to four devices on a single bus via ADD0 address selection (GND/V+/SDA/SCL).

Key Specifications

Pinout & Package

The TMP117AIDRVR uses a 6-pin WSON (DRV) package, 2.00 mm × 2.00 mm, with exposed thermal pad for enhanced thermal coupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX31875ASA+ and ADT7420ARMZ, the TMP117AIDRVR delivers superior accuracy across wider temperature ranges, built-in medical certification, and persistent calibration storage - making it the only option qualified for FDA-regulated electronic thermometers and long-duration cold-chain validation.

Availability

TMP117AIDRVR is available at Aetrix Electronics and suitable for electronic thermometers, cold chain asset tracking, and wearable fitness monitors requiring stable component supply, long-lifecycle support, and guaranteed NIST-traceable calibration.

Supply support for TMP117AIDRVR 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 company specializing in analog and embedded processing technologies, with leadership in precision sensing, power management, and industrial interface solutions.

The TMP117AIDRVR belongs to TI's high-accuracy temperature sensor product line, engineered specifically for medical, industrial, and battery-powered applications demanding clinical-grade accuracy, ultra-low power, and system-level simplification versus RTDs.

FAQ

What is the maximum accuracy specification of the TMP117AIDRVR across its full operating range?

The TMP117AIDRVR 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 production-tested and NIST-traceable, with no system calibration required to meet the –20 °C to 50 °C spec. The TMP117AIDRVR's accuracy profile is validated per ISO/IEC 17025-accredited test methods.

Does the TMP117AIDRVR support medical-grade applications such as electronic patient thermometers?

Yes, the TMP117AIDRVR is explicitly designed and certified for medical use: it meets ASTM E1112 and ISO 80601-2-56 requirements for electronic patient thermometers. Every unit undergoes 100% production testing on NIST-traceable equipment calibrated to ISO/IEC 17025 standards. Its ±0.1 °C accuracy from –20 °C to 50 °C, low self-heating (3.5 μA), and stable long-term drift (±0.03 °C after 1000 hrs at 150 °C) satisfy clinical-grade performance mandates without additional system-level validation.

How does the TMP117AIDRVR compare to platinum RTDs like PT100 in practical implementation?

The TMP117AIDRVR matches Class AA PT100 accuracy across –55 °C to 150 °C while eliminating RTD complexities: no precision current sources, matched PCB traces, 4-wire Kelvin sensing, or polynomial linearization algorithms. It consumes <1% of typical PT100 excitation power (3.5 μA vs ~1 mA), integrates EEPROM for system offset storage, and delivers calibrated 16-bit digital output directly. This reduces BOM count, layout area, and firmware development effort - making the TMP117AIDRVR a true single-chip RTD replacement.

What package type and pin configuration does the TMP117AIDRVR use?

The TMP117AIDRVR uses the 6-pin WSON (DRV) package, 2.00 mm × 2.00 mm, with an exposed thermal pad. Pinout is: 1–SCL, 2–GND, 3–ALERT, 4–ADD0, 5–V+, 6–SDA. The thermal pad must be soldered to PCB ground for optimal thermal performance (R_θJB = 35.4 °C/W). This DRV variant is distinct from the YBG (DSBGA) package and is specified for the full –55 °C to 150 °C range with 1.8–5.5 V supply.

Can the TMP117AIDRVR operate from a 1.8 V supply across its entire temperature range?

Yes, the TMP117AIDRVR supports 1.8 V to 5.5 V supply voltage across its full operating range of –55 °C to 150 °C. At 1.8 V, it maintains all specifications including ±0.3 °C accuracy, 3.5 μA quiescent current at 1-Hz conversion, and functional I²C communication (VIH ≥ 1.26 V, VIL ≤ 0.54 V). Brownout detection activates at 1.1 V falling edge, ensuring reliable reset behavior in low-voltage battery applications.