ADS8860IDRCR datasheet(29/53 Pages) TI2

29 / 53 page

CONVST

DOUT-

SCLK

DIN-

SDI

CLK

CNV

ADC 1

Digital Host

IRQ

CONVST

DOUT-

SCLK

DIN-

ADC 2

CONVST

DOUT-

SCLK

DIN-

ADC N

CONVST

DOUT-

N-1

SCLK

DIN-

N-1

ADC N 1

}

ADS8860

www.ti.com

SBAS569B – MAY 2013 – REVISED FEBRUARY 2019

Product Folder Links: ADS8860

Submit Documentation Feedback

Device Functional Modes (continued)

9.4.2.2 Daisy-Chain Mode With a Busy Indicator

This interface option is most useful in applications where multiple ADC devices are used but the digital host has

limited interfacing capability and an interrupt-driven data transfer is desired. Figure 60 shows a connection

diagram with N ADCs connected in the daisy-chain. The CONVST pins of all ADCs in the chain are connected

together and are controlled by a single pin of the digital host. Similarly, the SCLK pins of all ADCs in the chain

are connected together and are controlled by a single pin of the digital host. The DIN pin for ADC 1 (DIN-1) is

connected to its CONVST. The DOUT pin of ADC 1 (DOUT-1) is connected to the DIN pin of ADC 2 (DIN-2), and

so on. The DOUT pin of the last ADC in the chain (DOUT-N) is connected to the SDI and IRQ pins of the digital

host.

Figure 60. Connection Diagram: Daisy-Chain Mode With a Busy Indicator (DIN = 0)

ADS8860IDRCR Datasheet(PDF) 29 Page - Texas Instruments

ADS8860IDRCR Datasheet(HTML) 29 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

Datasheet Download

Link URL