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ADS1113IDGSR Datasheet(PDF) 11 Page - Texas Instruments

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Part No. ADS1113IDGSR
Description  Ultra-Small, Low-Power, 16-Bit Analog-to-Digital Converter with Internal Reference
Download  34 Pages
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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ADS1113IDGSR Datasheet(HTML) 11 Page - Texas Instruments

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background image
VDD
GND
SCL
SDA
ADDR
A
T
(ADS1114/5Only)
LER
AIN0
AIN1
AIN2(ADS1115Only)
AIN3(ADS1115Only)
SCL(P1.6)
SDA(P1.7)
1
F
00n
I C-Capabl Master
e
(
)
MSP430F2002
2
ADS1 13/4/
1
5
+3.3V
VDD
GND
1
F
00n
+3.3V
JTAG
Serial
AR
/U
T
+3.3V
10kW
10kW
ADS1113
ADS1114
ADS1115
www.ti.com ......................................................................................................................................................... SBAS444A – MAY 2009 – REVISED AUGUST 2009
QUICKSTART GUIDE
For example, to write to the configuration register to
set the ADS1113/4/5 to continuous conversion mode
This section provides a brief example of ADS1113/4/5
and then read the conversion result, send the
communications. Refer to subsequent sections of this
following bytes in this order:
data sheet for more detailed explanations. Hardware
for this design includes: one ADS1113/4/5 configured
Write to Config register:
with an I2C address of 1001000; a microcontroller
First byte: 0b10010000 (first 7-bit I2C address
with
an
I2C
interface
(TI
recommends
the
followed by a low read/write bit)
MSP430F2002);
discrete
components
such
as
resistors, capacitors, and serial connectors; and a 2V
Second byte: 0b00000001 (points to Config register)
to 5V power supply. Figure 23 shows the basic
Third byte: 0b10000100 (MSB of the Config register
hardware configuration.
to be written)
The ADS1113/4/5 communicate with the master
Fourth byte: 0b10000011 (LSB of the Config register
(microcontroller) through an I2C interface. The master
to be written)
provides a clock signal on the SCL pin and data are
transferred via the SDA pin. The ADS1113/4/5 never
Write to Pointer register:
drive the SCL pin. For information on programming
First byte: 0b10010000 (first 7-bit I2C address
and debugging the microcontroller being used, refer
followed by a low read/write bit)
to the device-specific product data sheet.
Second byte: 0b00000000 (points to Conversion
The first byte sent by the master should be the
register)
ADS1113/4/5 address followed by a bit that instructs
the ADS1113/4/5 to listen for a subsequent byte. The
Read Conversion register:
second byte is the register pointer. Refer to Table 9
First byte: 0b10010001 (first 7-bit I2C address
for a register map. The third and fourth bytes sent
followed by a high read/write bit)
from the master are written to the register indicated in
the second byte. Refer to Figure 30 and Figure 31 for
Second byte: the ADS1113/4/5 response with the
read
and
write
operation
timing
diagrams,
MSB of the Conversion register
respectively. All read and write transactions with the
Third byte: the ADS1113/4/5 response with the LSB
ADS1113/4/5 must be preceded by a start condition
of the Conversion register
and followed by a stop condition.
Figure 23. Basic Hardware Configuration
Copyright © 2009, Texas Instruments Incorporated
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Product Folder Link(s): ADS1113 ADS1114 ADS1115


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