ADS7223集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS7223属于集成电路（IC）的模数转换器（ADC）。由德州仪器制造生产的ADS7223模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。

1 Features

1• Eight Pseudo- or Four Fully-Differential Inputs

• Simultaneous Sampling of Two Channels

• Excellent AC Performance:

– SNR:

93 dB (ADS8363)

85 dB (ADS7263)

73 dB (ADS7223)

– THD:

–98 dB (ADS8363)

–92 dB (ADS7263)

–86 dB (ADS7223)

• Dual Programmable and Buffered 2.5-V

Reference Allows:

– Two Different Input Voltage Range Settings

– Two-Level PGA Implementation

• Programmable Auto-Sequencer

• Integrated Data Storage (up to 4 per channel) for

Oversampling Applications

• 2-Bit Counter for Safety Applications

• Fully Specified Over the Extended Industrial

Temperature Range: –40°C to +125°C

2 Applications

• Motor Control: Current and Position Measurement

including Safety Applications

• Power Quality Measurement

• Three-Phase Power Control

• Programmable Logic Controllers

• Industrial Automation

• Protection Relays

3 Description

The ADS8363 is a dual, 16-bit, 1-MSPS analog-todigital

converter (ADC) with eight pseudo- or four

fully-differential input channels grouped into two pairs

for simultaneous signal acquisition. The analog inputs

are maintained differentially to the input of the ADC.

The input multiplexer can be used in either pseudodifferential

mode, supporting up to four channels per

ADC (4x2), or in fully-differential mode that allows to

convert up to two inputs per ADC (2x2). The

ADS7263 is a 14-bit version and the ADS7223 is a

12-bit version of the ADS8363.

The ADS8363, ADS7263, and ADS7223 offer two

programmable reference outputs, flexible supply

voltage ranges, a programmable auto-sequencer,

data storage of up to four conversion results per

channel, and several power-down features.

All devices are offered in a 5-mm x 5-mm, 32-pin

VQFN package.