ADT7320/420 Temp Sensors - Analog Devices

DigiKey电子元器件新产品信息 > ADT7320/ADT7420 16-Bit Digital I2C Temperature Sensors

            ADT7320/ADT7420 16-Bit Digital I2C Temperature Sensors
                    Analog Devices’ sensors for high accuracy applications found in industrial, monitoring, and medical equipment applications
    

Image of ADI's ADT7320/ADT7420 16-Bit Digital I2C Temperature Sensors ADI’s ADT7320 and ADT7420 are high accuracy digital temperature sensors. They contain an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of +0.0078°C. The ADC resolution, by default, is set to 13-bits (+0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.

The ADT7320 and ADT7420 are guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. These devices have a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. These sensors are rated for operation over the -40°C to +150°C temperature range. The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT pin and CT pin can operate in either comparator or interrupt mode. The ADT7320 and ADT7420 come in an LFCSP package and are ideal for RTD and thermistor replacement, Industrial control, and medical equipment.

Features
High performance Temperature accuracy ±0.20°C from -10°C to +85°C at 3.0 V ±0.25°C from -20°C to +105°C from 2.7 V to 3.3 V 16-bit resolution: +0.0078°C Ultralow temperature drift: 0.0073°C NIST traceable or equivalent Fast first temperature conversion on power-up of 6 ms Easy implementation No temperature calibration/correction required by the user No linearity correction required I²C-compatible interface		Low power Power-saving 1 sample per second (SPS) mode 700 µW typical at 3.3 V in normal mode 7 µW typical at 3.3 V in shutdown mode Wide operating ranges Temperature range: -40°C to +150°C Voltage range: 2.7 V to 5.5 V Programmable interrupts Critical overtemperature interrupt Overtemperature/under temperature interrupt 16-lead, 4 mm x 4 mm LFCSP package
Applications
RTD and thermistor replacement Medical equipment Laser diode temperature control		Food transportation and storage HVAC

Eval Board

制造商零件编号	描述	可供货数量	价格	查看详情
EVAL-ADT7320FBZ	EVAL BOARD TEMP SENSOR ADT7320	0 - 立即发货	See Page for Pricing	查看详情
EVAL-ADT7X20EBZ	BOARD EVALUATION ADT7X20	0 - 立即发货	See Page for Pricing	查看详情
EVAL-CN0172-SDPZ	EVAL BOARD FOR ADT7320	1 - 立即发货	$1,596.96	查看详情
410-221	PMODTMP2 THERMOMETER/THERMOSTAT	10 - 立即发货	$123.06	查看详情
EVAL-ADT7420FBZ	EVAL BOARD TEMP SENSOR ADT7420	0 - 立即发货	See Page for Pricing	查看详情