ADC128D818
- 12-Bit Resolution Delta-Sigma ADC
- Local Temperature Sensing
- Configurable Single-Ended and/or Pseudo-Diff.
Inputs - 2.56-V Internal VREF or Variable External VREF
- WATCHDOG Window Comparators with Status
and Mask Registers of All Measured Values - Independent Registers for Storing Measured
Values - INT Output Notifies Microprocessor of Error Event
- I2C Serial Bus Interface Compatibility
- 9 Selectable Addresses
- TIME-OUT Reset Function to Prevent I2C Bus
Lock-Up - Individual Channel Shutdown to Limit Power
Consumption - Deep Shutdown Mode to Minimize Power
Consumption - TSSOP 16-Lead Package
- Key Specifications
- ADC Resolution 12-Bit
- Supply Voltage Range 3 V to 5.5 V
- Total Unadjusted Error –0.45%/+0.2%
- Integral Non-Linearity ±1 LSb
- Differential Non-Linearity ±1 LSb
- Operating Current 0.56 mA
- Deep Shutdown Current 10 ±A
- Temperature Resolution °C/LSb
- Temperature Accuracy (–40°C to 125°C) ±3°C
- Temperature Accuracy (–25°C to 100°C) ±2°C
The ADC128D818 I2C system monitor is designed for maximum flexibility. The system monitor can be configured for single-ended and/or pseudo-differential inputs. An onboard temperature sensor, combined with WATCHDOG window comparators, and an interrupt output pin, INT, allow easy monitoring and out-of-range alarms for every channel. A high performance internal reference is also available to provide for a complete solution in the most difficult operating conditions.
The ADC128D818s 12-bit delta-sigma ADC supports Standard Mode (Sm, 100 kbps) and Fast Mode (Fm, 400 kbps) I2C interfaces. The ADC128D818 includes a sequencer to control channel conversions and stores all converted results in independent registers for easy microprocessor retrieval. Unused channels can be shut down independently to conserve power.
The ADC can use either an internal 2.56-V reference or a variable external reference. An analog filter is included on the I2C digital control lines to provide improved noise immunity. The device also includes a TIME-OUT reset function on SDA and SCL to prevent I2C bus lock-up.
The ADC128D818 operates from 3-V to 5.5-V power supply voltage range, –40°C to 125°C temperature range, and the device is available in a 16-pin TSSOP package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | ADC128D818 12-Bit, 8-Channel, ADC System Monitor With Temperature Sensor, Internal – External Reference, and I2C Interface datasheet (Rev. F) | PDF | HTML | 2015年 8月 31日 |
Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2024年 3月 18日 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023年 3月 29日 | |
Application note | A Basic Guide to I2C | PDF | HTML | 2022年 11月 8日 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 2020年 6月 19日 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015年 3月 19日 |
設計與開發
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ADC128D818SW-LINUX — 適用於 ADC128D818 的 Linux 驅動程式
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- adc128d818
Linux (...)
SENSOREVAL — Eval Board Software For Hardware Monitors And Digital Temperature Sensors
SensorEval
SensorEval software supports the latest TI temperature sensor and hardware monitor evaluation boards via USB interface. It also allows access to sensors mounted directly on motherboards that support Intel chip sets.
- Download SensorEval Software and Manual
- Windows XP support is offered for (...)
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封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
TSSOP (PW) | 16 | Ultra Librarian |
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