ADS5231是TI公司的一款高速ADC(>10MSPS)产品，ADS5231是双路低功耗 12 位 40MSPS ADC，本页介绍了ADS5231的产品说明、应用、特性等，并给出了与ADS5231相关的TI元器件型号供参考。
ADS5231 - 双路低功耗 12 位 40MSPS ADC - 高速ADC(>10MSPS) - 模数转换器 - TI公司（Texas Instruments，德州仪器）
The ADS5231 is a dual, high-speed, high dynamic range, 12-bit pipelined analog-to-digital converter (ADC). This converter includes a high-bandwidth sample-and-hold amplifier that gives excellent spurious performance up to and beyond the Nyquist rate. The differential nature of the sample-and-hold amplifier and ADC circuitry minimizes even-order harmonics and gives excellent common-mode noise immunity.
The ADS5231 provides for setting the full-scale range of the converter without any external reference circuitry. The internal reference can be disabled, allowing low-drive, external references to be used for improved tracking in multichannel systems.
The ADS5231 provides an over-range indicator flag to indicate an input signal that exceeds the full-scale input range of the converter. This flag can be used to reduce the gain of front-end gain control circuitry. There is also an output enable pin to allow for multiplexing and testing on a printed circuit board (PCB).
The ADS5231 employs digital error correction techniques to provide excellent differential linearity for demanding imaging applications. The ADS5231 is available in a TQFP-64 package.
- Single +3.3V Supply
- High SNR: 70.7dBFS at fIN = 5MHz
- Total Power Dissipation: Internal Reference: 321mW External Reference: 285mW
- Internal or External Reference
- Low DNL: ±0.3LSB
- Flexible Input Range: 1.5VPP to 2VPP
- TQFP-64 Package
- APPLICATIONS
- Communications IF Processing
- Communications Base Stations
- Test Equipment
- Medical Imaging
- Video Digitizing
- CCD Digitizing
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