仕様
| 属性 | 値 |
| Package | Tube |
| Series | dBCool® |
| ProductStatus | Obsolete |
| Function | Fan Control, Temp Monitor |
| SensorType | Internal and External |
| SensingTemperature | -40°C ~ 125°C |
| Accuracy | ±1.5°C(Max) |
| Topology | ADC, Comparator, Fan Speed Counter, Multiplexer, Register Bank |
| OutputType | SMBus |
| OutputAlarm | No |
| OutputFan | Yes |
| Voltage-Supply | 3V ~ 3.6V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 24-SSOP (0.154, 3.90mm Width) |
概要
Description
ADT7490ARQZ is an Analog Devices multi‑channel digital temperature monitor. It provides eight independent temperature inputs (to external sensors such as diodes or thermistors) and reports the temperatures over a serial I2C/SMBus interface. Each channel can have its own programmable high/low alarm thresholds, and the device includes status/alert outputs to drive fans or thermal-management logic. The ARQZ suffix denotes a specific RoHS‑compliant packaging variant. Used for board‑level or system‑level thermal monitoring in servers, telecom gear, and high‑density electronics. For exact specs, pinout, voltage range, and programming details, consult the ADI datasheet for ADT7490ARQZ.
Equivalent
ADT7490ARQZ is a digital I2C temperature sensor. For cross-reference, common equivalents include: TI TMP102/TMP100/TMP75; NXP LM75A; Maxim DS75; Analog Devices ADT7420/ADT7428. For an exact match, confirm interface (I2C/SMBus), resolution, channels, temperature range, and package.
Features
Here are concise features of the ADT7490ARQZ (Analog Devices):
- Multi-channel ADC: 8 multiplexed analog inputs feeding a high-resolution ADC
- Serial interface: SPI-compatible (fast, four-wire serial)
- Resolution: high-resolution ADC (typical 10-bit)
- Input options: programmable input range and reference (internal or external)
- On-chip sample-and-hold
- Power and performance: low-power operation with standby modes
- Supply and logic: supports 2.7 V to 5.5 V supply; compatible with standard logic levels
- Operating temperature: wide range for industrial use
- Packaging: ARQZ variant (specific package/configuration as per datasheet)
- Protection: ESD/diagnostic features on I/O pins
Note: for exact specifications (bit resolution, speed, input ranges, and temperature range), please consult the latest Analog Devices datasheet for ADT7490ARQZ.
- Multi-channel ADC: 8 multiplexed analog inputs feeding a high-resolution ADC
- Serial interface: SPI-compatible (fast, four-wire serial)
- Resolution: high-resolution ADC (typical 10-bit)
- Input options: programmable input range and reference (internal or external)
- On-chip sample-and-hold
- Power and performance: low-power operation with standby modes
- Supply and logic: supports 2.7 V to 5.5 V supply; compatible with standard logic levels
- Operating temperature: wide range for industrial use
- Packaging: ARQZ variant (specific package/configuration as per datasheet)
- Protection: ESD/diagnostic features on I/O pins
Note: for exact specifications (bit resolution, speed, input ranges, and temperature range), please consult the latest Analog Devices datasheet for ADT7490ARQZ.
Pinout
- Pin count: 28 pins
- Function: Four-channel digital temperature monitor with a serial interface (SPI/I2C-compatible) for reading temperatures from four inputs.
- Function: Four-channel digital temperature monitor with a serial interface (SPI/I2C-compatible) for reading temperatures from four inputs.
Manufacturer
- Manufacturer: Analog Devices, Inc. (ADI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits.
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits.
Application
ADT7490ARQZ is a high‑accuracy digital temperature sensor with I2C interface (remote sensing). Common applications include:
- Thermal monitoring in PCs/embedded systems (CPU/GPU, MCU boards)
- Power electronics and motor drives for overheat protection
- Battery packs and energy storage systems (BMS)
- Automotive thermal management (engine, transmission, HVAC)
- Industrial equipment and process control
- Networking/telecom equipment environmental monitoring
- Data centers and server racks for ambient sensing
- Consumer electronics and IoT devices needing precise temperature data
- Thermal monitoring in PCs/embedded systems (CPU/GPU, MCU boards)
- Power electronics and motor drives for overheat protection
- Battery packs and energy storage systems (BMS)
- Automotive thermal management (engine, transmission, HVAC)
- Industrial equipment and process control
- Networking/telecom equipment environmental monitoring
- Data centers and server racks for ambient sensing
- Consumer electronics and IoT devices needing precise temperature data
Package
Package type: LFCSP (lead-frame chip-scale package). The ARQZ suffix denotes RoHS-compliant, tape-and-reel packaging.
