The ADT7408 is the first digital temperature sensor that complies with JEDEC standard JC-42.4 for Mobile Platform Memory Module. The ADT7408 contains a band gap temperature sensor and 12-bit ADC to monitor and digitize the temperature to a resolution of 0.0625°C.

There is an open-drain Event# output that is active when the monitoring temperature exceeds a critical programmable limit or the temperature falls above or below an alarm window. This pin can operate in either comparator or interrupt mode. There are three slave-device address pins that allows up to eight ADT7408s to be used in a system that monitors temperature of various components and subsystems.

The ADT7408 is specified for operation at supply voltages from 3.0 V to 3.6 V. Operating at 3.3 V, the average supply current is less than typically 240μA. The ADT7408 offers a shutdown mode that powers down the device and gives a shutdown current of typically 3 μA. The ADT7408 is rated for operation over the –20°C to +125°C temperature range. The ADT7408 is available in lead-free 8-lead LFCSP 3mm x 3mm (JEDEC MO- 229 VEED-4) package.

Applications

Memory Module Temperature Monitoring

Isolated Sensors

Environmental Control Systems

Computer Thermal Monitoring

Thermal Protection

Industrial Process Control

Power-system Monitors

Hand Held Applications

Part#	Temp Res(°C/LSB)	25°C Temp Error (Deg C)	Resolution (Bits)	# Chan	DAC Outputs	Interface	Temp Range(s)	Supply Voltage Range	Product Description	Price* (1000-4999)
ADT7316	0.25	±0.5	10	3	12-Bit x 4	I2C, I2C/SPI, Serial, SM Bus, SPI	-40 to +120	+2.7V to +5.5V	SPI/I2C® Compatible,10-Bit Digital Temperature Sensor With Quad Voltage-Output 12-Bit DAC	$6.38
ADT7317	0.25	±0.5	10	3	10-Bit x 4	I2C, I2C/SPI, SM Bus, SPI	-40 to +120	+2.7V to +5.5V	SPI/I2C® Compatible,10-Bit Digital Temperature Sensor w/ Quad 10-Bit Voltage Output DAC	$3.47
ADT7318	0.25	+0.5	10	3	8-Bit x 4	I2C, I2C/SPI, Serial, SM Bus, SPI	-40 to +120	+2.7V to +5.5V	SPI/I2C® Compatible,10-Bit Digital Temperature Sensor & Quad Voltage Output 8-Bit DAC	$2.20
TMP03	0.3	±3	16	0	---	PWM	-40 to +100	+4.5V to +7V	Serial PWM-Output Temperature Sensor w/ Open-Collector Output	$3.23
TMP04	0.3	±3	16	0	---	PWM	-40 to +100	+4.5V to +7V	Serial PWM-Output Temperature Sensor w/ CMOS/TTL Output	$3.23
AD7814	0.25	n/a	10	0	---	Serial, SPI	-55 to +125	+2.7V to +5.5V	10-Bit Digital Temperature Sensor in 6-Lead SOT-23	$0.99
AD7414	0.25	n/a	10	0	---	I2C, Serial	-40 to +125	+2.7V to +5.5V	SMBus/I2C, 10-Bit Digital Temperature Sensor in 6-Pin SOT w/ SMBus Alert and Over-Temperature Pin	$1.03
AD7415	0.25	±2	10	0	---	I2C, Serial	-40 to +125	+2.7V to +5.5V	SMBus/I2C, 10-Bit Digital Temperature Sensor in 5-Pin SOT	$1.03
AD7416	0.25	n/a	10	0	---	Switch (Off/On)	-40 to +125	+2.7V to +5.5V	10-Bit Temperature-to-Digital Converter, -40°C to +125°C, ±2°C Accuracy	$0.99
AD7816	0.25	±1	10	0	---	Serial, SPI, Switch (Off/On)	-40 to +85	+2.7V to +5.5V	10-Bit Digital Output Temperature Sensor w/Over-Temp Alert and Auto Pwr Dwn @ End of Conversion	$1.43
AD7314	0.25	±1	10	0	---	Serial, SPI	-35 to +85	+2.65V to +5.5V	Low Voltage, 10-Bit Digital Temperature Sensor in 8-Lead µSOP	$0.65
AD7818	0.25	±1	10	1	---	Switch (Off/On)	-40 to +85	+2.7V to +5.5V	9 µs, 10-Bit ADC w/ On-Chip Temperature Sensor & Over-Temperature Output	$2.31
AD7418	0.25	±1	10	2	---	I2C, Serial, Switch (Off/On)	-40 to +125	+2.7V to +5.5V	10-Bit ADC, Programmable Hi-Low Temp Limits w/ Over-Temp Alert, , Auto Pwr Dwn @ EOC	$2.31
AD7817	0.25	±1	10	4	---	Switch (Off/On)	-40 to +85	+2.7V to +5.5V	4-Channel, 9 µs, 10-Bit ADC with On-Chip Temperature Sensor & Over-Temperature Flag	$3.25
AD7417	0.25	±1	10	5	---	I2C, Serial, Switch (Off/On)	-40 to +125	+2.7V to +5.5V	4-Channel, 10-Bit ADC w/ on-Chip Temperature Sensor, Programmable Setpoints, and Overtemp Flag Out	$2.95
ADT7516	0.25	n/a	10	7	12-Bit x 4	I2C/SPI, Serial, SPI	-40 to +120	+2.7V to +5.5V	SPI/I2C Compatible Temperature Sensor w/10-Bit-4-Ch ADC & Quad 12-Bit Voltage DAC Control Outputs	$7.65
ADT7411	0.25	+0.5	10	11	n/a	I2C, I2C/SPI, Serial, SPI	-40 to +120	+2.7V to +5.5V	SPI®-/I2C®-Compatible, 10-Bit ADC w/ Local & Remote Temp Msmt, 8 GP Analog Inputs, and VDD monitor	$2.19
ADT6501	0.125	±4	11	n/a	-	Switch (Off/On)	-55 to +125	+2.7V to +5.5V	2.7V/5.5V, Micropower Temperature Switch in SOT-23 w/ active-low open-drain Output, +35 to +115 DegC	$0.49
ADT6502	0.125	±4	11	n/a	---	Switch (Off/On)	-55 to +125	+2.7V to +5.5V	2.7V/5.5 V, Micropower Temperature Switch in SOT-23 w/Active-High Push-pull Output, +35 to +115 DegC	-
ADT6503	0.0625	n/a	11	n/a	---	Switch (Off/On)	-55 to +125	+2.7V to +5.5V	2.7V/5.5V, Micropower Temperature Switch in SOT-23 w/Open-drain Output, -45 to +15 Deg C	$0.49
ADT6504	0.0625	n/a	12	n/a	---	Switch (Off/On)	-55 to +125	+2.7V to +5.5V	2.7 V to 5.5 V, Micropower Temperature Switch in SOT-23 w/Push-pull Output, -45 to +15 Deg C	$0.49
ADT7408	0.0625	±1	12	0	---	Switch (Off/On)	-20 to +125	+3V to +3.6V	± 2 Degree C Accurate, 12-Bit Digital Temperature Sensor	$0.86
ADT75	0.0625	n/a	12	0	---	Switch (Off/On)	-55 to +125	+3V to +5.5V	±1 Deg C Accuracy, 12-Bit Digital Temperature Sensor	$0.65
ADT7301	0.03125	n/a	13	0	---	Serial, SPI	-40 to +150	+2.7V to +5.5V	13-Bit, ±1ºC Accurate, MicroPower Digital Temperature Sensor in 6-Lead SOT-23 and 8-Lead MSOP	$1.20
ADT7302	0.03125	n/a	13	0	---	Serial, SPI	-40 to +125	+2.7V to +5.25V	±2°C Accurate, MicroPower Digital Temperature Sensor in 6-Lead SOT-23	$0.62
TMP06	0.025	±0.5	12	0	---	PWM	-40 to +150	+2.7V to +5.5V	0.5°C Accurate PWM Temperature Sensor in 5-Lead SC-70 or SOT-23 w/ Open Drain Output	$0.65
TMP01	n/a	±0.5	n/a	0	---	Analog, Switch (Off/On)	-55 to +125	+4.5V to +13.2V	Low Power, Programmable Temperature Sensor/ Controller w/ upper/lower setpoints	$2.64
TMP05	0.025	±0.5	12	0	---	PWM	-40 to +150	+2.7V to +5.5V	0.5°C Accurate PWM Temperature Sensor in 5-Lead SC-70 or SOT-23 w/ CMOS/TTL Output	$0.65
AD22105	n/a	±3	n/a	0	---	Switch (Off/On)	-40 to +125	+2.7V to 7V	Low Voltage, Resistor Programmable Thermostatic Switch	$1.20

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

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