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ADC12138 - 产品图解：
ADC12138-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 - ADC12138介绍

ADC12138 - 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

ADC12138是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADC12138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，本站介绍了ADC12138的封装应用图解、特点和优点、功能等，并给出了与ADC12138相关的TI元器件型号供参考。

ADC12138 - 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 - 德州仪器

产品描述

NOTE: Some device/package combinations are obsolete and are described and shown here for reference only. See our web site for product availability.

The ADC12130, ADC12132 and ADC12138 are 12-bit plus sign successive approximation Analog-to-Digital converters with serial I/O and configurable input multiplexer. The ADC12132 and ADC12138 have a 2 and an 8 channel multiplexer, respectively. The differential multiplexer outputs and ADC inputs are available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12130 has a two channel multiplexer with the multiplexer outputs and ADC inputs internally connected. The ADC12130 family is tested and specified with a 5MHz clock. On request, these ADCs go through a self calibration process that adjusts linearity, zero and full-scale errors to typically 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, SPI and QSPI Compatible)
  • Power Down Mode
  • Programmable Acquisition Time
  • Variable Digital Output Word Length and Format
  • No Zero or Full Scale Adjustment Required
  • 0V to 5V Analog Input Range with Single 5V Power Supply

Key Specifications

  • Resolution 12-bit plus sign
  • 12-Bit plus sign conversion time 8.8 μs (max)
  • 12-Bit plus sign throughput time 14 μs (max)
  • Integral Linearity Error ±2 LSB (max)
  • Single Supply 3.3V or 5V ±10%
  • Power Consumption
    • +3.3V 15 mW (max)
    • +3.3V power down 40 μW (typ)
    • +5V 33 mW (max)
    • +5V power down 100 μW (typ)

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