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Texas Instruments LM70CIMM-3/NOPB — Discrete Semiconductors

LM70CIMM-3/NOPB Digital Temp Sensor, SPI, -55°C to 150°C

MPNLM70CIMM-3/NOPB
End of Life

TI LM70CIMM-3/NOPB digital local temperature sensor, SPI output, 10-bit resolution, 2.65V–5.5V supply, -55°C to 150°C range, ±1.5°C typical accuracy, 8-VSSOP package, shutdown mode, ROHS3.

$3.48Ref. price · indicative, final on quote
Texas Instruments LM70CIMM-3/NOPB datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM70CIMM-3/NOPB specifications
ParameterValue
Output typeSPI
Sensor typeDigital, Local
MountingSurface Mount
Supply voltage2.65V ~ 5.5V
Operating temperature-55°C ~ 150°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesShutdown Mode
Resolution10 b
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Test condition-10°C ~ 65°C (-55°C ~ 150°C)
Accuracy - highest (Lowest)1.5°C (-2°C, 3°C)
Sensing temperature - local-55°C ~ 150°C

Product details

What this digital temp sensor brings to the board

The Texas Instruments LM70CIMM-3/NOPB is a digital local temperature sensor that reads the die temperature and reports it over a SPI interface with 10-bit resolution. The SPI output means you connect it directly to any MCU or FPGA SPI port; no external ADC or signal conditioning. Accuracy is ±1.5°C typical, with worst-case bounds of -2°C / +3°C across the full range.

The part comes in an 8-VSSOP (3.00 mm width) — a small-outline surface-mount package.

There is no NRND or LTB notice on this variant. For new designs, there is no end-of-life clock ticking. If you are filling a BOM line, this is a straightforward active part to qualify.

Frequently asked questions

Is LM70CIMM-3/NOPB a direct replacement for LM70CIMM?

The /NOPB suffix indicates ROHS3 compliance (lead-free). The base LM70CIMM (non-NOPB) may be tin-lead. Electrically and functionally they are the same sensor — same SPI interface, same 10-bit resolution, same temperature range. The /NOPB version is the current active ROHS3-compliant variant. If your assembly process requires lead-free, this is the direct drop-in.

What is the accuracy of LM70CIMM-3/NOPB?

Typical accuracy is ±1.5°C. Worst-case limits are -2°C (low) and +3°C (high) across the full -55°C to 150°C range. For tighter tolerance, consider a calibrated sensor or a higher-grade part.

Does LM70CIMM-3/NOPB have a shutdown mode?

Yes, shutdown mode is a listed feature. It cuts the sensor's quiescent current when the SPI interface is not actively reading the temperature register. Wake it up with a SPI transaction.