AMC131M02 datasheet(71/89 Pages) TI

tên linh kiện	AMC131M02

Giải thích chi tiết về linh kiện	AMC131M02 2-Channel, 64-kSPS, Simultaneous-Sampling, 24-Bit, Reinforced Isolated Delta-Sigma ADC With Integrated DC/DC Converter

PDF	89 Pages

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nhà sản xuất	TI [Texas Instruments]

Trang chủ	http://www.ti.com

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MCU

Device

Local

Oscillator

DVDD

DGND

CLKOUT

CLKIN

GPIO

SYNC / RESET

GPIO

DRDY

SCLK

PICO

DIN

POCI

DOUT

Figure 9-2. Minimum Connections Required to Operate the AMC131M02

9.1.4 Multiple Device Configuration

Multiple AMC131M02 devices can be arranged to scale the number of channels for simultaneous data

acquisition. The same clock must be provided to all devices and the SYNC/RESET pins must be strobed

simultaneously at least one time to align the sample periods internally between devices. The phase settings

of each device can be changed uniquely, but the host must take care to record which channel in the group of

devices represents the zero phase.

The devices can also share the SPI bus where only the CS pins for each device are unique. Each device can

be addressed sequentially by asserting CS for the device that the host wishes to communicate with. The DOUT

pin remains high impedance when the CS pin is high, allowing the DOUT lines to be shared between devices as

long as no two devices sharing the bus simultaneously have the CS pins low. Figure 9-3 depicts multiple devices

configured for simultaneous data acquisition while sharing the SPI bus.

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AMC131M02

SBASA56 – SEPTEMBER 2023

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