ADT7420UCPZ-R2
Sensors
Technical Specifications
| Type | Description |
|---|---|
| Detection Temperature Range | -40°C~+150°C |
| Tolerance | ±0.2°C |
| Standby Current | - |
| Temperature Conversion Time | 240ms |
| Temperature Resolution | 16 bit |
| Type | Description |
|---|---|
| Operating Temperature | - |
| Supply Voltage | 2.7V~5.5V |
| Interface | I2C |
| Features | Factory temperature calibration;Temperature threshold monitoring;Low-power standby;Configurable temperature output |
| Package / Case | LFCSP-16(4x4) |
Product Introduction
The AD7420 is a high-precision digital temperature sensor in a 4mm×4mm LFCSP package, delivering breakthrough performance across a wide industrial temperature range. It integrates a bandgap temperature reference, a temperature sensor, and a 16-bit ADC for temperature monitoring and digital conversion, with a resolution of 0.0078°C. The default ADC resolution is set to 13 bits (0.0625°C). ADC resolution is user-programmable and can be changed via the serial interface.
The AD7420 is guaranteed to operate over a supply voltage range of 2.7V to 5.5V; at 3.3V, the typical average supply current is 210μA. The AD7420 features a shutdown mode to power down the device, with a typical shutdown current of 2.0μA at 3.3V. The rated operating temperature range is −40°C to +150°C.
Pins A0 and A1 are used for address selection, providing four I2C addresses for the AD7420. The CT pin is an open-drain output that asserts when the temperature exceeds the critical temperature limit (programmable). The INT pin is also an open-drain output that asserts when the temperature exceeds the limit (programmable). Both the INT and CT pins can operate in comparator mode and interrupt event mode.
Features
- Temperature accuracy ±0.20°C (-10°C to +85°C, 3.0V to 3.3V), ±0.25°C (-20°C to +105°C, 3.0V to 3.6V)
- 16-bit temperature resolution: 0.0078°C
- Ultra-low temperature drift: 0.0073°C
- NIST-traceable or equivalent functionality
- 6ms fast first power-on temperature conversion
- Easy implementation — no user temperature calibration/correction required
- No linearity correction required
- Low power consumption
- 1SPS power-saving mode
- Normal mode: 700μW (typical, 3.3V)
- Shutdown mode: 7μW (typical, 3.3V)
- Wide operating range
- Temperature range: -40°C to +150°C
- Voltage range: 2.7V to 5.5V
- Programmable interrupt
- Critical overtemperature interrupt
- Overtemperature/undertemperature interrupt
- I2C-compatible interface
- 16-pin, 4mm×4mm LFCSP package, RoHS compliant
- Easy to use — no user correction or calibration required
- Excellent long-term stability and reliability
- High accuracy for industrial, instrumentation, and medical applications
Applications
- RTD and thermistor replacement
- Thermocouple cold junction compensation
- Medical devices
- Industrial control and testing
- Food transportation and storage
- Environmental monitoring and HVAC
- Laser diode temperature control
Datasheet
Alternative Parts
Common ADT7420UCPZ-R2 alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 9025191010 |
| USHTS | 9025194000 |
| TARIC | 9025190010 |
| Type | Details |
|---|---|
| CAHTS | 9025190011 |
| BRHTS | 90251910 |
| INHTS | 90251910 |
| MXHTS | 9025.19.01 |
Sourcing Information
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