ADC122S625
- True Simultaneous Sampling Differential Inputs
- Specified Performance from 50 kSPS to 200 kSPS
- External Reference
- Wide Input Common-Mode Voltage Range
- Single High-Speed Serial Data Output
- Operating Temperature Range of −40°C to +105°C
- SPI/QSPI/MICROWIRE/DSP Compatible Serial Interface
Key Specifications
- Conversion Rate: 50 kSPS to 200 kSPS
- INL: ±1 LSB (max)
- DNL: ±0.95 LSB (max)
- SNR: 71 dBc (min)
- THD: -72 dBc (min)
- ENOB: 11.25 bits (min)
- Power Consumption at 200 kSPS
- Converting, VA = 5V, VREF = 2.5V: 8.6 mW (typ)
- Power-Down, VA = 5V, VREF = 2.5V: 2.6 µW (typ)
All trademarks are the property of their respective owners.
The ADC122S625 is a dual 12-bit, 50 kSPS to 200 kSPS simultaneous sampling Analog-to-Digital (A/D) converter. The analog inputs on both channels are sampled simultaneously to preserve their relative phase information to each other. The converter is based on a successive-approximation register architecture where the differential nature of the analog inputs is maintained from the internal track-and-hold circuits throughout the A/D converter to provide excellent common-mode signal rejection. The ADC122S625 features an external reference that can be varied from 1.0V to VA.
The ADC122S625's serial data output is binary 2's complement and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces. The serial clock (SCLK) and chip select bar (CS) are shared by both channels.
Operating from a single 5V analog supply and a reference voltage of 2.5V, the total power consumption while operating at 200 kSPS is typically 8.6 mW. With the ADC122S625 operating in power-down mode, the power consumption reduces to 2.6 µW. The differential input, low power consumption, and small size make the ADC122S625 ideal for direct connection to sensors in motor control applications.
Operation is specified over the industrial temperature range of −40°C to +105°C and clock rates of 1.6 MHz to 6.4 MHz. The ADC122S625 is available in a 10-lead VSSOP package.
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技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | Dual 12-Bit, 50 kSPS to 200 kSPS, Simultaneous Sampling A/D Converter 数据表 (Rev. A) | 2013年 3月 20日 | |||
电子书 | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015年 5月 21日 | ||||
用户指南 | ADC122S625 Dual 12Bit, 50 kSPS to 200 kSPS, Simultaneous Sampling ADC User Guide | 2012年 2月 21日 |
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
VSSOP (DGS) | 10 | Ultra Librarian |
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