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Microchip Technology MCP96RL01-E/MX
- Part No.:
- MCP96RL01-E/MX
- Manufacturer:
- Microchip Technology
- Category:
- Sensor and Detector Interfaces
- Package:
- 20-VQFN Exposed Pad
- Datasheet:
-
MCP96RL01-E/MX.pdf
- Description:
- IC THERMOCOUPLE
- Quantity:
- Payment:
- Shipping:
Inventory:1,272
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Product details
Overview
MCP96RL01-E/MX from Microchip Technology is a thermocouple EMF-to-°C converter IC with integrated cold-junction compensation, ±4.0°C/±8.0°C (typ./max.) hot-junction accuracy over –40°C to +125°C, 0.0625°C measurement resolution, and I²C interface operating at 100 kHz. It supports eight thermocouple types (K/J/T/N/S/E/B/R) and provides open-circuit and short-circuit detection for industrial thermal monitoring applications.
For engineers reviewing the MCP96RL01-E/MX datasheet, MCP96RL01-E/MX pinout, MCP96RL01-E/MX application, or MCP96RL01-E/MX equivalent, key selection criteria include thermocouple type support, cold-junction accuracy, alert output programmability, VSENSE-based fault detection, and MQFN-20 package compatibility with high-density PCB layouts.
Technical Context
The MCP96RL01-E/MX implements NIST ITS-90 thermocouple voltage-to-temperature conversion in the millivolt domain, using preloaded coefficients for eight thermocouple types. Its ADC core delivers 12–18-bit resolution with configurable digital filtering and burst-mode sampling (1–128 samples).
It integrates dedicated circuitry for thermocouple open-circuit (OC Alert) and short-circuit (SC Alert) detection via the VSENSE input, with defined voltage thresholds (58–75% VDD for OC assertion, 0–10% or 90–100% VDD for SC). All four Alert outputs are active-high push-pull and support rising/falling edge detection with up to +255°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Hot-Junction Accuracy | ±4.0°C (typ.), ±8.0°C (max.) at TA = 0°C to +85°C - defines worst-case error in final temperature reading under standard conditions |
| Cold-Junction Accuracy | ±1.0°C (typ.), ±2.0°C (max.) at TA = –40°C to +125°C - limits error contribution from on-chip reference junction sensing |
| Temperature Resolution | ±0.0625°C - enables fine-grained thermal control and detection of sub-degree changes |
| I²C Interface Speed | 100 kHz - ensures compatibility with standard-mode I²C buses and supports up to eight devices per bus |
| Operating Voltage | 2.7V to 5.5V - allows direct integration with 3.3V and 5V microcontroller systems without level-shifting |
| Shutdown Current | 2 µA (typ.) - extends battery life in portable thermal measurement equipment during idle periods |
| Thermocouple Support | Type K, J, T, N, S, E, B, R - covers full industrial range from cryogenic (–200°C) to ultra-high-temp (1800°C) |
Pinout & Package
Package: 20-lead 5 mm × 5 mm MQFN with exposed thermal pad (EP), optimized for thermal performance and space-constrained industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential thermocouple input | Accepts raw EMF from thermocouple; supports ±250 mV differential range with 300 kΩ input impedance |
| VSENSE | Open/short-circuit detection input | Monitors thermocouple continuity; asserts OC Alert at 58–75% VDD, SC Alert at 0–10% or 90–100% VDD |
| Alert 1–4 | Programmable push-pull outputs | Configurable as comparator or interrupt outputs; support rising/falling edge detection with user-defined hysteresis |
| SCL, SDA | I²C serial interface | Standard-mode compatible (100 kHz); supports multi-drop bus with ADDR pin selecting one of eight addresses |
| ADDR | I²C slave address selector | Accepts GND/VDD or resistor-divider voltages to set device address (0–7) without external logic |
| VDD, GND (Pins 1,3,5,13,17,6,7,9,10,18) | Power and ground distribution | Multiple dedicated GND pins minimize noise coupling; EP enhances thermal dissipation and signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| NIST ITS-90 thermocouple conversion | Eliminates need for external lookup tables or firmware compensation - reduces MCU processing load and calibration complexity |
| Integrated open/short-circuit detection | Enables automatic thermocouple health monitoring without external comparators or analog circuitry |
| Four independent programmable alerts | Allows simultaneous monitoring of multiple thermal zones (e.g., hot-junction, cold-junction, delta-T, fault state) |
| Burst-mode sampling (1–128 samples) | Supports low-power periodic measurements in battery-operated handheld instruments |
| 18-bit ADC resolution with digital filter | Improves effective resolution in noisy industrial environments while maintaining fast response to thermal transients |
Applications
| Industrial Engine Thermal Monitor | Commercial Oven Temperature Control |
|---|---|
Use Scenario: Real-time monitoring of exhaust manifold or cylinder head temperature in diesel/gasoline engines. IC Role / Device Role / Timing Role: Converts Type K thermocouple EMF to calibrated °C with cold-junction compensation, feeding data to engine control unit (ECU). Use Value: Enables precise thermal derating and emissions compliance by delivering ±4.0°C accuracy across –40°C to +125°C ambient. | Use Scenario: Closed-loop temperature regulation in convection ovens used in food service and lab settings. IC Role / Device Role / Timing Role: Reads Type T thermocouple output and triggers heating element cutoff via Alert 1 when setpoint is reached. Use Value: Provides 0.0625°C resolution and programmable hysteresis (up to +255°C) to prevent thermal overshoot and cycling. |
| Hand-Held Thermal Multimeter | Petrochemical Process Rack |
Use Scenario: Portable field instrument measuring surface or immersion temperatures in HVAC, manufacturing, or maintenance tasks. IC Role / Device Role / Timing Role: Acts as primary temperature acquisition front-end, interfacing thermocouple probes and an ARM Cortex-M0+ MCU via I²C. Use Value: Delivers 2 µA shutdown current and burst-mode sampling to extend battery life beyond 100 hours per charge. | Use Scenario: Distributed temperature sensing across reactor vessels, piping, and heat exchangers in oil refining facilities. IC Role / Device Role / Timing Role: Monitors Type E thermocouples in hazardous-area enclosures, reporting faults (open/short) via OC/SC Alert outputs. Use Value: Reduces system-level diagnostics overhead by embedding fault detection directly in the sensor interface IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar thermocouple interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX31855KASA+ | ±3°C max hot-junction accuracy (Type K), no VSENSE-based open/short detection; SPI interface only | Lacks I²C compatibility and integrated fault detection - requires external circuitry for thermocouple health monitoring | Select when SPI-native host architecture exists and ±3°C accuracy suffices; avoid if I²C bus sharing or autonomous fault signaling is required |
| AD8495ARMZ | Analog output (10 mV/°C), no digital conversion or cold-junction compensation - requires external ADC and microcontroller firmware | Not a drop-in replacement: adds signal chain complexity, calibration burden, and board area | Choose only for legacy analog systems where digital integration is impractical; not suitable for new I²C-based designs |
Compared with MAX31855KASA+ and AD8495ARMZ, the MCP96RL01-E/MX offers native I²C communication, embedded NIST ITS-90 conversion, and hardware-level thermocouple fault detection - reducing firmware development, PCB component count, and long-term calibration drift risk.
Availability
MCP96RL01-E/MX is available at Aetrix Electronics and suitable for industrial engine thermal monitor, commercial oven temperature control, hand-held thermal multimeter, petrochemical process rack, and temperature detection rack applications requiring stable component supply and long-term manufacturability.
Supply support for MCP96RL01-E/MX 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
Microchip Technology Inc. is a leading provider of microcontrollers, analog components, and interface ICs, serving industrial, automotive, and consumer markets with high-reliability semiconductor solutions.
The MCP960X/L0X/RL0X product line was designed specifically for precision thermocouple-based temperature measurement in harsh environments, emphasizing accuracy, fault resilience, and ease of integration into resource-constrained embedded systems.
FAQ
What thermocouple types does the MCP96RL01-E/MX support?
The MCP96RL01-E/MX supports eight thermocouple types per NIST ITS-90: Type K, J, T, N, S, E, B, and R. Each type is fully supported across its specified temperature range - for example, Type K from –200°C to +1372°C and Type B from 1000°C to +1800°C. Configuration is done via user registers, and the MCP96RL01-E/MX applies appropriate correction coefficients internally.
How does the MCP96RL01-E/MX implement cold-junction compensation?
The MCP96RL01-E/MX uses an on-chip temperature sensor to measure the cold-junction (reference junction) temperature, then applies NIST ITS-90 polynomial correction to compensate for thermocouple nonlinearity. Its cold-junction accuracy is ±1.0°C (typ.) and ±2.0°C (max.) over –40°C to +125°C ambient, ensuring reliable offset correction without external sensors or calibration.
What is the function of the VSENSE pin on the MCP96RL01-E/MX?
The VSENSE pin on the MCP96RL01-E/MX enables hardware-based thermocouple open-circuit and short-circuit detection. It monitors voltage levels: OC Alert asserts when VSENSE is 58–75% VDD (normal disconnect), and SC Alert asserts when VSENSE is 0–10% VDD (short to GND) or 90–100% VDD (short to VDD). This eliminates need for external comparators in fault-tolerant systems.
Can the MCP96RL01-E/MX operate on a 5V supply?
Yes, the MCP96RL01-E/MX operates across 2.7V to 5.5V, making it fully compatible with 5V systems. All specifications - including I²C timing, alert output drive strength (VOH ≥ VDD – 0.5V, VOL ≤ 0.4V at 3 mA), and thermocouple accuracy - are guaranteed across this full voltage range per DS20005426F.
Does the MCP96RL01-E/MX support multiple devices on the same I²C bus?
Yes, the MCP96RL01-E/MX supports up to eight devices on a single I²C bus using the ADDR pin. ADDR accepts GND, VDD, or seven intermediate voltage levels (via resistive divider) to configure addresses 0–7. Each device responds only to its assigned 7-bit slave address (0xC0–0xC7), enabling scalable multi-sensor deployments.
MCP96RL01-E/MX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 20-VQFN Exposed Pad
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Thermocouple to Digital Converter
- Input Type:
- Thermocouple
- Output Type:
- I2C
- Current - Supply:
- 300 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-MQFN (5x5)
MCP96RL01-E/MX FAQ
1.How can I place an order for MCP96RL01-E/MX through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP96RL01-E/MX 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 MCP96RL01-E/MX reliable?
The price and inventory of MCP96RL01-E/MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP96RL01-E/MX is usually 5 days.
3.What payment methods are accepted for MCP96RL01-E/MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP96RL01-E/MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP96RL01-E/MX?
MCP96RL01-E/MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP96RL01-E/MX 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 MCP96RL01-E/MX?
For technical support, including MCP96RL01-E/MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP96RL01-E/MX requirements.
6.How does Aetrix verify that MCP96RL01-E/MX is sourced from the original manufacturer or authorized distributors?
All MCP96RL01-E/MX 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 MCP96RL01-E/MX meets industry standards.
7.What is the process for return or replacement of MCP96RL01-E/MX?
All MCP96RL01-E/MX units undergo pre-shipment inspection (PSI). If there is an issue with MCP96RL01-E/MX, 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 MCP96RL01-E/MX part is unused and in its original packaging.
Return procedure for MCP96RL01-E/MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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