ADC122S706
- True Simultaneous Sampling Differential Inputs
- Guaranteed Performance from 500 kSPS to 1 MSPS
- External Reference
- Wide Input Common-Mode Voltage Range
- Single or Dual High-Speed Serial Data Outputs
- Operating Temperature Range of −40°C to +105°C
- SPI™/QSPI™/MICROWIRE/DSP Compatible Serial Interface
Key Specifications
- Conversion Rate: 500 kSPS to 1 MSPS
- 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 1
MSPS
- Converting, VA = 5V, VD = 3V: 20 mW (Typ)
- Converting, VA = 5V, VD = 5V: 25 mW (Typ)
- Power-Down: 3 µW (Typ)
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The ADC122S706 is a dual 12-bit, 500 kSPS to 1 MSPS 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 ADC122S706 features an external reference that can be varied from 1.0V to VA.
The ADC122S706 offers dual high-speed serial data outputs that are binary 2's complement and are compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces. Channel A's conversion result is outputted on DOUTA while Channel B's conversion result is outputted on DOUTB. This feature makes the ADC122S706 an excellent replacement for systems using two distinct ADCs in a simultaneous sampling application. The serial clock (SCLK) and chip select bar (CS) are shared by both channels. For lower power consumption, a single serial data output mode is externally selectable.
The ADC122S706 may be operated with independent analog (VA) and digital (VD) supplies. VA can range from 4.5V to 5.5V and VD can range from 2.7V to VA. With the ADC122S706 operating with a VA of 5V and a VD of 3V, the power consumption at 1 MSPS is typically 25 mW. Operating in power-down mode, the power consumption of the ADC122S706 decreases to 3 µW. The differential input, low power consumption, and small size make the ADC122S706 ideal for direct connection to sensors in motor control applications.
Operation is guaranteed over the industrial temperature range of −40°C to +105°C and clock rates of 8 MHz to 16 MHz. The ADC122S706 is available in a 14-lead TSSOP package.
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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | ADC122S706 Dual 12-Bit, 500 kSPS to 1 MSPS, Simultaneous Sampling A/D Converter 数据表 (Rev. A) | 2013-3-20 | |||
| 电子书 | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015-5-21 | ||||
| 用户指南 | ADC122S706 Dual 12-Bit, 500 kSPS to 1 MSPS Simultaneous Sampling AD Converter | 2012-1-25 |
设计与开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |
订购和质量
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