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ADC12038 - 产品图解:
ADC12038-具有 MUX 和采样/保持功能的自校准 12 位 + 串行 I/O A/D 转换器
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TI产品 - ADC12038介绍
ADC12038 - 具有 MUX 和采样/保持功能的自校准 12 位 + 串行 I/O A/D 转换器

ADC12038是TI公司的一款精密ADC(<=10MSPS)产品,ADC12038是具有 MUX 和采样/保持功能的自校准 12 位 + 串行 I/O A/D 转换器,本页介绍了ADC12038的产品说明、应用、特性等,并给出了与ADC12038相关的TI元器件型号供参考。

ADC12038 - 具有 MUX 和采样/保持功能的自校准 12 位 + 串行 I/O A/D 转换器 - 精密ADC(<=10MSPS) - 模数转换器 - TI公司(Texas Instruments,德州仪器)

产品描述

NOTE: Some of these devices may be obsolete and are described and shown here for reference only. See our web site for product availability.

The ADC12030, and ADC12H030 families are 12-bit plus sign successive approximation Analog-to-Digital Converters with serial I/O and configurable input multiplexers. The ADC12034/ADC12H034 and ADC12038/ADC12H038 have 4 and 8 channel multiplexers, respectively. The differential multiplexer outputs and ADC inputs are available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12030/ADC12H030 has a two channel multiplexer with the multiplexer outputs and ADC inputs internally connected. The ADC12030 family is tested with a 5 MHz clock, while the ADC12H030 family is tested with an 8 MHz clock. On request, these ADCs go through a self calibration process that adjusts linearity, zero and full-scale errors to less than ±1 LSB each.

The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo-differential modes. A fully differential unipolar analog input range (0V to +5V) can be accommodated with a single +5V supply. In the differential modes, valid outputs are obtained even when the negative inputs are greater than the positive because of the 12-bit plus sign output data format.

The serial I/O is configured to comply with NSC MICROWIRE. For voltage references see the LM4040, LM4050 or LM4041.

产品特性

  • Serial I/O (MICROWIRE Compatible)
  • 2, 4, or 8 Chan Differential or Single-Ended Multiplexer
  • Analog Input Sample/Hold Function
  • Power Down Mode
  • Variable Resolution and Conversion Rate
  • Programmable Acquisition Time
  • Variable Digital Output Word Length and Format
  • No Zero or Full Scale Adjustment Required
  • Fully Tested and Ensured with a 4.096V Reference
  • 0V to 5V Analog Input Range with Single 5V Power Supply
  • No Missing Codes over Temperature

Key Specifications

  • Resolution 12-bit plus sign
  • 12-bit plus sign conversion time
    • ADC12H30 family 5.5 μs (max)
    • ADC12030 family 8.8 μs (max)
  • 12-bit plus sign throughput time
    • ADC12H30 family 8.6 μs (max)
    • ADC12030 family 14 μs (max)
  • Integral Linearity Error ±1 LSB (max)
  • Single Supply 5V ±10%
  • Power consumption 33 mW (max)
    • Power down 100 μW (typ)

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