ADS7138
- Small package size:
- 3-mm × 3-mm WQFN
- 8 channels configurable as any combination of:
- Up to 8 analog inputs, digital inputs, or digital outputs
- GPIOs for I/O expansion:
- Open-drain, push-pull digital outputs
- Analog watchdog:
- Programmable thresholds per channel
- Event counter for transient rejection
- Wide operating ranges:
- AVDD: 2.35 V to 5.5 V
- DVDD: 1.65 V to 5.5 V
- –40°C to +125°C temperature range
- CRC for read/write operations:
- CRC on data read/write
- CRC on power-up configuration
- I2C interface:
- Up to 3.4 MHz (high-speed mode)
- 8 configurable I2C addresses
- Programmable averaging filters:
- Programmable sample size for averaging
- Averaging with internal conversions
- 16-bit resolution for average output
The ADS7138 is an easy-to-use, 8-channel, multiplexed, 12-bit, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for ADC conversion processes.
The ADS7138 communicates via an I2C-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7138 implements analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7138 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | ADS7138 Small, 8-Channel, 12-Bit ADC With I2C Interface, GPIOs, and CRC datasheet (Rev. A) | PDF | HTML | 2020年 5月 20日 |
Technical article | How tiny data converters give you more value per square | PDF | HTML | 2019年 12月 11日 | |
Application brief | Resolution-Boosting ADS7138 Using Programmable Averaging Filter | 2019年 12月 1日 | ||
User guide | BP-ADS7128 BoosterPack™ Plug-In Module User's Guide | 2019年 5月 21日 |
設計與開發
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封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
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WQFN (RTE) | 16 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
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- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
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