Analog Devices Inc. TMP36FS

Overview

TMP36FS from Analog Devices is a precision analog-output centigrade temperature sensor in TO-92 package, delivering 10 mV/°C linear output with 750 mV at 25°C, ±2°C accuracy over −40°C to +125°C, and <50 µA quiescent current. It operates from 2.7 V to 5.5 V and serves as a direct-replacement thermal sensing element in CPU thermal management and industrial process control circuits.

For engineers reviewing the TMP36FS datasheet, TMP36FS pinout, TMP36FS application, or TMP36FS equivalent, this page delivers verified package mapping (TO-92, 3-pin), confirmed shutdown functionality (not available in TO-92), exact scale factor (10 mV/°C), and real-world thermal response data - all critical for low-power embedded thermal monitoring design.

Technical Context

The TMP36FS uses a bandgap-based core with matched transistor pairs and precision resistor scaling to generate a voltage output directly proportional to absolute temperature in °C. Its output stage features an emitter-follower buffer (Q4) enabling stable drive into capacitive loads up to 10 nF without oscillation.

Unlike the SOIC_N and SOT-23 variants, the TMP36FS (TO-92 package) lacks a dedicated SHUTDOWN pin - the shutdown feature is physically absent and not electrically supported. Its thermal performance is defined by θ_JA = 162°C/W and self-heating <0.1°C in still air at 5 V supply.

Key Specifications

Pinout & Package

Package: TO-92 (T-3-1), through-hole, 3-pin, leaded plastic package with θ_JA = 162°C/W and JEDEC-standard pin 1 (+VS) orientation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog-output centigrade temperature sensing applications.

Compared with LM50DZ/NOPB, TMP36FS offers tighter accuracy and automotive qualification; compared with TSIC506-25, it provides simpler analog integration and lower BOM count but requires external ADC and lacks digital diagnostics.

Availability

TMP36FS is available at Aetrix Electronics and suitable for CPU thermal management, industrial process control, and power system monitors requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TMP36FS 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The TMP35/TMP36/TMP37 family was designed specifically for low-power, single-supply centigrade temperature measurement in space-constrained and thermally demanding environments - emphasizing accuracy, stability, and ease of analog interface.

FAQ

Does TMP36FS support shutdown mode?

No, TMP36FS does not support shutdown mode. The shutdown function is only available on the SOIC_N (R-8) and SOT-23 (RJ-5) package variants of the TMP36 series. The TMP36FS is the TO-92 (T-3) variant, which has only three pins (+VS, VOUT, GND) and no SHUTDOWN terminal. Its quiescent current remains <50 µA continuously, making it suitable for always-on thermal monitoring where ultra-low sleep current is not required.

What is the maximum capacitive load TMP36FS can drive without oscillation?

TMP36FS is specified to drive capacitive loads up to 10,000 pF (10 nF) without oscillation or instability. This capability is confirmed in the datasheet's "Capacitive Load Driving" specification and typical performance curve Figure 5. It enables direct connection to long PCB traces, shielded cables, or ADC input capacitance without requiring an output buffer amplifier - simplifying layout and reducing component count in noise-sensitive applications.

Can TMP36FS be used in automotive applications?

Yes, TMP36FS is qualified for automotive applications per AEC-Q100. The datasheet explicitly states "Qualified for automotive applications" in the FEATURES section and lists "Automotive Products" in the Ordering Guide. Its −40°C to +125°C operating range, 175°C junction temperature rating, and robustness against thermal cycling and ESD make it suitable for under-hood and cabin thermal sensing in ECUs, battery management systems, and HVAC controls.

What is the output voltage of TMP36FS at 0°C and 100°C?

At 0°C, TMP36FS outputs 500 mV (750 mV − 250 mV offset). At 100°C, it outputs 1750 mV (750 mV + 100 × 10 mV/°C). These values follow directly from its 750 mV output at 25°C and 10 mV/°C scale factor, with linear behavior confirmed across −40°C to +125°C. The output remains within 100 mV to 2000 mV limits across its full rated range, ensuring compatibility with standard 3.3 V or 5 V ADC references.

Is TMP36FS pin-compatible with LM35 or LM50?

TMP36FS is functionally compatible with LM50 (same 10 mV/°C scale factor and 750 mV @ 25°C) and shares identical TO-92 pinout (Pin 1 = V_S, Pin 2 = V_OUT, Pin 3 = GND), enabling drop-in replacement in existing LM50 designs. It is not pin-compatible with LM35, which outputs 10 mV/°C but with 0 V offset at 0°C (250 mV @ 25°C); substituting TMP36FS for LM35 requires adjusting ADC offset calibration due to the 500 mV baseline shift.