ADS7863A
- Four Fully- or Six Pseudo-Differential Inputs
- SNR: 71 dB
- THD: –81 dB
- Programmable and Buffered Internal 2.5-V Reference
- Flexible Power-Down Features
- Variable Power-Supply Ranges: 2.7 V to 5.5 V
- Low-Power Operation: 45 mW at 5 V
- Operating Temperature Range:
–40°C to +125°C - Pin-Compatible with the ADS7861 and ADS8361 (SSOP Package)
The ADS7863A is a dual, 12-bit, 2-MSPS, analog-to-digital converter (ADC) with four fully-differential or six pseudo-differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition. Inputs to the sample-and-hold (S/H) amplifiers are fully differential and are maintained differential to the ADC input. This architecture provides excellent common-mode rejection of 72 dB at 100 kHz, which is a critical performance characteristic in noisy environments.
The device is pin-compatible with the ADS7861, but offers additional features such as a programmable reference output, flexible supply voltage (2.7 V to 5.5 V for AVDD and BVDD), a pseudo-differential input multiplexer with three channels per ADC, and several power-down features.
The device is offered in an SSOP-24 and a 4-mm × 4-mm QFN-24 package. The device is specified over the extended operating temperature range of –40°C to +125°C.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Dual, 2-MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous-Sampling, ADC datasheet | 2013年 12月 12日 | |
Application note | An Introduction to the ADS7863A | 2013年 4月 10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 |
---|---|---|
SSOP (DBQ) | 24 | Ultra Librarian |
VQFN (RGE) | 24 | Ultra Librarian |
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