TMP123AIDBVTG4 Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
Texas Instruments TMP123AIDBVTG4 is a 12-bit digital SPI temperature sensor accurate to ±0.5°C over -55°C to +125°C. It delivers high-resolution readings in a miniature 6-pin SOT-23 surface-mount package for space-constrained designs. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- TMP123AIDBVTG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.5054(MOQ 61)
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TMP123AIDBVTG4?
- 12-bit SPI digital output with ±0.5°C typical accuracy across -55°C to +125°C, eliminating ADC and signal-conditioning circuitry in the host design
- Compact 6-pin SOT-23 package measuring 2.9 mm x 1.6 mm, enabling temperature sensing in densely populated PCBs and portable devices
- Wide operating temperature range of -55°C to +125°C with 1.5°C maximum accuracy, supporting industrial and automotive-grade thermal monitoring
What is TMP123AIDBVTG4 used for?
The TMP123AIDBVTG4 is ideal for industrial equipment, server and PC motherboard thermal management, and HVAC controllers where a 12-bit SPI readout and ±0.5°C accuracy simplify firmware integration. Its -55°C to +125°C operating range makes it well suited for outdoor sensor nodes, automotive cabin monitors, and battery pack temperature protection circuits. The tiny SOT-23 package allows placement close to heat-generating components such as power MOSFETs, regulators, or processors for accurate local thermal sensing.
What are the specifications of TMP123AIDBVTG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Accuracy-Max (Cel) | 1.5Cel |
| Body Breadth | 1.6mm |
| Body Height | 1.45mm |
| Body Length or Diameter | 2.9mm |
| Housing | PLASTIC |
| JESD-609 Code | e4 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 12 |
| Operating Current-Max | 0.05mA |
| Output Interface Type | SPI INTERFACE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape/Style | RECTANGULAR |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Surface Mount | YES |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Termination Type | SOLDER |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TMP123AIDBVTG4 datasheet?
TMP123AIDBVTG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TMP123AIDBVTG4?
Compatible alternatives and drop-in replacements for TMP123AIDBVTG4:
Switch/Digital Sensor, 12 Bit(s), 1.5Cel, Rectangular, 6 Pin, Surface Mount
Switch/Digital Sensor, 12 Bit(s), 1.5Cel, Rectangular, 6 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 1.50Cel, Rectangular, 6 Pin, Surface Mount
Frequently Asked Questions
What resolution and accuracy does the TMP123AIDBVTG4 provide for precision thermal management applications?
The TMP123AIDBVTG4 provides a 12-bit digital temperature output with a resolution of 0.0625°C per LSB and a typical accuracy of ±0.5°C. Maximum accuracy is ±1.5°C across the full -55°C to +125°C range. This level of precision is sufficient for server thermal throttling, battery overheat protection, and HVAC setpoint control without requiring any external calibration circuitry.
How does TMP123AIDBVTG4 integrate into a microcontroller design using its SPI interface?
The TMP123AIDBVTG4 communicates over a standard 3-wire SPI bus at clock rates up to several MHz, delivering a 16-bit frame that includes the 12-bit temperature data plus status flags. The host MCU simply asserts chip select, reads the frame, and converts the two's-complement value using a 0.0625°C scale factor — no ADC, no reference voltage, and no op-amp are needed. This reduces BOM count and firmware complexity compared to analog temperature sensors.
Which space-constrained designs benefit most from the 6-pin SOT-23 package of TMP123AIDBVTG4?
The 6-pin SOT-23 package measures just 2.9 mm x 1.6 mm, making the TMP123AIDBVTG4 an excellent fit for wearables, hearing aids, USB dongles, and miniature IoT sensor modules. Its surface-mount footprint places it close to heat sources such as a 1 A LDO regulator or a Bluetooth SoC, enabling on-board junction temperature monitoring within a 10 mm radius without consuming significant board area.
For industrial designs operating in harsh environments, how does TMP123AIDBVTG4 compare to a basic NTC thermistor?
Unlike an NTC thermistor that requires a precision reference resistor, an ADC channel, and a linearization lookup table, the TMP123AIDBVTG4 outputs a calibrated 12-bit digital code directly over SPI. The -55°C to +125°C operating range covers most industrial and outdoor use cases, and the ±1.5°C maximum accuracy eliminates the per-unit calibration step that NTC thermistors typically require at production, reducing manufacturing cost and firmware complexity.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
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| 61+ | $3.3208 | $202.57 |
| 78+ | $3.2101 | $250.39 |
| 105+ | $2.8780 | $302.19 |
| 250+ | $2.5054 | $626.35 |
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