ADC122S021
- Specified over a Range of Sample Rates.
- Two Input Channels
- Variable Power Management
- Single Power Supply with 2.7V - 5.25V Range
Key Specifications
- DNL +0.4 / −0.2 LSB (typ)
- INL ± 0.35 LSB (typ)
- SNR 72.0 dB (typ)
- Power Consumption 2.2 mW (typ)
- 5V Supply 7.9 mW (typ)
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The ADC122S021 is a low-power, two-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC122S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals at inputs IN1 and IN2.
The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
The ADC122S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply.
The ADC122S021 is packaged in an 8-lead VSSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | ADC122S021 2 Channel, 50 ksps to 200 ksps 12-Bit A/D Converter datasheet (Rev. D) | 2013年 3月 19日 | |
Circuit design | Low-input bias-current front end SAR ADC circuit (Rev. B) | PDF | HTML | 2024年 9月 24日 | |
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015年 5月 21日 | ||
EVM User's guide | Evaluation Board User's Guide 12, 10 and 8-Bit A-to-D Converters with Input Mux | 2012年 1月 25日 |
設計與開發
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ADC128S052SW-LINUX — 適用於 ADC128S052 的 Linux 驅動程式
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- adc128s052
- adc122s021
Linux Source (...)
ANALOG-ENGINEER-CALC — 類比工程師計算機
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VSSOP (DGK) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- 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
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。