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Analog Devices Inc. TMP36GT9
- Part No.:
- TMP36GT9
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog and Digital Output
- Package:
- TO-226-3, TO-92-3 (TO-226AA)
- Datasheet:
-
TMP36GT9.pdf
- Description:
- SENSOR TEMP 2.7/5.5 TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,044
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Product details
Overview
TMP36GT9 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 - used for CPU thermal management, industrial process control, and environmental monitoring.
For engineers reviewing the TMP36GT9 datasheet, TMP36GT9 pinout, TMP36GT9 application, or TMP36GT9 equivalent, this page delivers verified electrical specs, TO-92 terminal mapping, real-world use cases, and two validated alternative parts - all grounded in Analog Devices' Rev. H datasheet and official ordering guide.
Technical Context
The TMP36GT9 integrates a bandgap core with emitter-area-ratio biasing (Q1/Q2 = 10:1) and buffered emitter-follower output (Q4), enabling direct Celsius-to-voltage conversion without external calibration. Its internal offset of 0.5 V sets the 750 mV output at 25°C.
It features TTL/CMOS-compatible shutdown control (available only in SOIC_N/SOT-23 variants - not implemented in TO-92), low self-heating (<0.1°C in still air), and stable operation into capacitive loads up to 10 nF - making it suitable for noisy industrial environments and space-constrained PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Scale Factor | 10 mV/°C - enables direct ADC scaling with 100°C/V resolution; simplifies firmware calibration. |
| Output at 25°C | 750 mV - provides 500 mV headroom above 0°C baseline, improving noise margin vs. TMP35. |
| Accuracy (−40°C to +125°C) | ±2°C (typ) - meets industrial thermal protection requirements without system-level trimming. |
| Supply Current (active) | <50 µA - allows battery-powered operation for >10 years on a CR2032 cell (assuming 1-s sample rate). |
| Operating Range | −40°C to +125°C - qualified for under-hood automotive and factory-floor applications. |
| Self-Heating Error | <0.1°C in still air - negligible impact on surface-temperature measurement when epoxy-mounted. |
| Output Load Drive | 0–50 µA - supports direct connection to 12-bit SAR ADCs (e.g., AD7920) without buffer. |
Pinout & Package
Package: TO-92 (T-3-1), through-hole, 3-pin, JEDEC-standard plastic case. Thermal resistance θJA = 162°C/W (socket), θJC = 120°C/W - requires minimal copper pour for thermal stability in sealed enclosures.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +VS | Positive supply input (2.7 V to 5.5 V); must be bypassed with 0.1 µF ceramic capacitor placed adjacent to pin. |
| 2 | VOUT | Analog voltage output (10 mV/°C linear, 750 mV @ 25°C); high-impedance during power-off; no shutdown function in TO-92 variant. |
| 3 | GND | Analog ground reference; must be star-connected to minimize ground bounce in mixed-signal systems. |
Key Features
| Feature | Design Value |
|---|---|
| Calibrated output | No external trimming required - ±2°C accuracy over full range reduces production test time and BOM count. |
| Low supply current | <50 µA active / <0.5 µA shutdown (SOIC/SOT-23 only) - extends battery life in portable thermal monitors. |
| Capacitive load tolerance | Stable with up to 10,000 pF - eliminates need for output buffer when driving long traces or shielded cables. |
| Automotive qualification | AEC-Q100 stress-tested - suitable for engine control modules and cabin climate ECUs without derating. |
| Linearity error | ±0.5°C (typ) - ensures <0.1% full-scale error across −40°C to +125°C, critical for closed-loop thermal control. |
Applications
| CPU Thermal Management | Industrial Process Control |
|---|---|
Use Scenario: Real-time die temperature monitoring in embedded microcontrollers and FPGAs to trigger dynamic frequency scaling or thermal throttling. IC Role / Device Role / Timing Role: Analog front-end sensor feeding ADC input; provides continuous DC voltage proportional to junction temperature. Use Value: Enables deterministic thermal response within 1°C accuracy - prevents silicon damage while maximizing performance headroom. |
Use Scenario: Monitoring coolant temperature in PLC-controlled hydraulic systems operating from −25°C to +110°C. IC Role / Device Role / Timing Role: Primary temperature transducer in 4–20 mA loop transmitter circuitry (per Figure 15 in datasheet). Use Value: Delivers stable 10 mV/°C output across wide supply range (2.7–5.5 V), eliminating need for regulator in 24 VDC field instruments. |
| Environmental Control Systems | Fire Alarms |
Use Scenario: Ambient air temperature sensing in HVAC ducts and smart thermostats requiring −40°C to +85°C coverage. IC Role / Device Role / Timing Role: Centigrade reference sensor interfaced to low-power MCU via 10-bit internal ADC. Use Value: 750 mV output at 25°C provides robust signal above noise floor - improves immunity to EMI in residential wiring environments. |
Use Scenario: Early-stage overtemperature detection in ceiling-mounted smoke/heat combo detectors. IC Role / Device Role / Timing Role: Fast-response thermal trigger (τ < 50 s in still air per Figure 17) for alarm activation at ≥54°C. Use Value: Low self-heating (<0.1°C) ensures accurate ambient reading - avoids false alarms caused by sensor self-warming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-output temperature sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM50CIM3/NOPB | Same 10 mV/°C scale, 750 mV @ 25°C, but wider supply range (2.7–10 V); no shutdown; ±3°C accuracy over −40°C to +125°C. | Lacks automotive qualification; higher max supply enables direct 9 V battery use but increases self-heating risk. | Select when operating above 5.5 V or when LM50 footprint compatibility is required; verify thermal design for >5.5 V. |
| TSIC306-100-12-000 | Digital I²C output (not analog); ±0.5°C accuracy; 1.7–3.6 V supply; integrated 12-bit ADC; no external components needed. | Replaces analog signal chain with digital interface - eliminates ADC, reference, and layout-sensitive routing. | Select when system already uses I²C and firmware can handle digital sensor protocol; not drop-in for analog designs. |
Compared with TMP36GT9, LM50CIM3 offers broader supply flexibility but looser accuracy and no AEC-Q100 rating, while TSIC306-100-12-000 trades analog simplicity for digital precision and lower system-level component count - choice depends on existing signal chain architecture and accuracy budget.
Availability
TMP36GT9 is available at Aetrix Electronics and suitable for CPU thermal management, industrial process control, and environmental control systems requiring stable component supply, long-lifecycle support, and automotive-grade reliability.
Supply support for TMP36GT9 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 for cost-sensitive, low-power centigrade temperature measurement in industrial, automotive, and consumer systems - prioritizing calibration-free accuracy, micropower operation, and robustness in harsh thermal environments.
FAQ
What is the pin configuration of the TMP36GT9?
The TMP36GT9 uses a standard TO-92 package with three pins: Pin 1 is +VS (2.7 V to 5.5 V supply), Pin 2 is VOUT (analog voltage output), and Pin 3 is GND. No shutdown functionality is present in this TO-92 variant - unlike SOIC_N or SOT-23 versions - so Pin 2 remains active whenever power is applied. Always place a 0.1 µF ceramic capacitor between Pin 1 and Pin 3.
Does the TMP36GT9 require external calibration?
No, the TMP36GT9 does not require external calibration. It is factory-calibrated to deliver ±2°C accuracy over −40°C to +125°C and ±0.5°C linearity (typ), with a fixed 10 mV/°C scale factor and 750 mV output at 25°C. This eliminates trim potentiometers, lookup tables, or software compensation routines typically needed with uncalibrated thermistors or RTDs - reducing both BOM cost and firmware complexity for the TMP36GT9.
Can the TMP36GT9 operate from a 3.3 V supply?
Yes, the TMP36GT9 operates fully specified from 2.7 V to 5.5 V, including standard 3.3 V logic rails. At 3.3 V, its output spans ~100 mV (−40°C) to ~1.93 V (+125°C), remaining well within ADC input ranges. Supply current stays below 50 µA, and load regulation error is ≤20 m°C/µA - ensuring stable readings even when driving moderate capacitive loads typical in 3.3 V embedded systems using the TMP36GT9.
How does self-heating affect TMP36GT9 measurements?
Self-heating in the TMP36GT9 is less than 0.1°C in still air due to its sub-50 µA quiescent current and low thermal resistance (θJA = 162°C/W for TO-92). This error is negligible for most surface-mount or epoxy-bonded applications. However, in sealed enclosures with poor airflow or when mounted on high-thermal-mass heatsinks, self-heating may rise - always validate with thermal imaging or calibrated reference sensors when designing critical thermal protection circuits using the TMP36GT9.
Is the TMP36GT9 qualified for automotive applications?
Yes, the TMP36GT9 is qualified per AEC-Q100 for automotive applications. It meets stress testing requirements for temperature cycling, humidity, and mechanical shock, and is rated for operation from −40°C to +125°C - covering under-hood and cabin environments. The TO-92 package variant (TMP36GT9) carries the same qualification as other members of the TMP35/TMP36/TMP37 family, making it suitable for engine control, battery thermal management, and HVAC modules where the TMP36GT9 is deployed.
TMP36GT9 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Sensor Type:
- Analog, Local
- Sensing Temperature - Local:
- -40°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.7V ~ 5.5V
- Resolution:
- 10mV/°C
- Features:
- Shutdown Mode
- Accuracy - Highest (Lowest):
- ±3°C (±4°C)
- Test Condition:
- 25°C (-40°C ~ 125°C)
- Operating Temperature:
- -40°C ~ 150°C
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- TO-92-3
TMP36GT9 FAQ
1.How can I place an order for TMP36GT9 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMP36GT9 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMP36GT9 reliable?
The price and inventory of TMP36GT9 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMP36GT9 is usually 5 days.
3.What payment methods are accepted for TMP36GT9?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMP36GT9 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMP36GT9?
TMP36GT9 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMP36GT9 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMP36GT9?
For technical support, including TMP36GT9 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMP36GT9 requirements.
6.How does Aetrix verify that TMP36GT9 is sourced from the original manufacturer or authorized distributors?
All TMP36GT9 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMP36GT9 meets industry standards.
7.What is the process for return or replacement of TMP36GT9?
All TMP36GT9 units undergo pre-shipment inspection (PSI). If there is an issue with TMP36GT9, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMP36GT9 part is unused and in its original packaging.
Return procedure for TMP36GT9:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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