ADC12138中文资料具有 MUX 和采样/保持功能的自校准 12 位 + 串行 I/O A/D 转换器数据手册TI规格书

描述 Description

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 5 MHz 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.

特性 Features

·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)
All trademarks are the property of their respective owners.