ADS1113 datasheet(32/50 Pages) TI2

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INITIALIZE

POWER DOWN

DATA CAPTURE

YES

Conﬁgure microcontroller SPI interface to SPI

mode 1 (CPOL = 0, CPHA = 1);

If the

pin is not tied low permanently,

conﬁgure the microcontroller GPIO connected

as an output;

Conﬁgure the microcontroller GPIO connected

to the

pin as a falling edge triggered

DRDY

interrupt input;

Set

to the device low;

Write the conﬁg register to set the device to

FSR = ±0.512 V, continuous conversion

mode, data rate = 64 SPS

Clear

to high to reset the serial interface

Power-up; Wait for supplies to settle to

nominal to ensure power-up reset is complete;

Wait for 50 µs

Take

low

Read out conversion result

and clear CS to high before

Delay for minimum td(CSSC)

Take

low

Set MODE bit in conﬁg register to '1'

to enter power-down and single-shot

mode

Clear

to high

Wait for DOUT/

DRDY to transition

low

Delay for minimum td(CSSC)

DOUT/

goes low again

DRDY

ADS1118

SBAS457F – OCTOBER 2010 – REVISED SEPTEMBER 2019

www.ti.com

Product Folder Links: ADS1118

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Application Information (continued)

10.1.6 Pseudo Code Example

The flow chart in Figure 49 shows a pseudo code sequence with the required steps to set up communication

between the device and a microcontroller to take subsequent readings from the ADS1118. As an example, the

default Config Register settings are changed to set up the device in FSR = ±0.512 V, continuous conversion

mode and 64-SPS data rate.

Figure 49. Pseudo Code Example Flow Chart

ADS1113 Datasheet(PDF) 32 Page - Texas Instruments

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