ADS1255IDB Burr-Brown Corporation, ADS1255IDB Datasheet - Page 29

• Manufacturer Part Number: ADS1255IDB
• Description: Very Low Noise/ 24-Bit Analog-to-Digital Converter
• Manufacturer: Burr-Brown Corporation

DIGITAL INTERFACE CONNECTIONS
The
MICROWIRE -compatible interface easily connects to a
wide variety of microcontrollers. Figure 26 shows the basic
connection to TI’s MSP430 family of low-power
microcontrollers. Figure 27 shows the connection to
microcontrollers with an SPI interface like TI’s MSC12xx
family or the 68HC11 family. Note that the MSC12xx
includes a high-resolution A/D converter; the ADS1255/6
can be used to add additional channels of measurement
or provide higher-speed conversions. Finally, Figure 28
shows how to connect the ADS1255/6 to an 8xC51 UART
in serial mode 0 in a 2-wire configuration. Avoid using the
continuous read mode (RDATAC) when DIN and DOUT
are connected together.
(1) CS may be tied low.
www.ti.com
ADS1255/6
ADS1255
ADS1256
Figure 26. Connection to MSP430
DOUT
DRDY
SCLK
CS
DIN
(1)
Microcontroller
5V
tolerant
SPI-,
P1.3
P1.2
P1.0
P1.6
P1.4
MSP430
QSPI , and
Figure 28. Connection to 8xC51 Microcontroller
Figure 27. Connection to Microcontrollers with
(1) CS may be tied low.
ADS1255
ADS1256
ADS1255
ADS1256
UART with a 2-Wire Interface
DOUT
DRDY
DOUT
DRDY
SCLK
SCLK
CS
DIN
DIN
SBAS288D − JUNE 2003 − REVISED AUGUST 2004
CS
(1)
an SPI Interface
DGND
P3.0/RXD
P3.1xTXD
MOSI
MISO
INT
SCK
IO
MSC12xx or
68HC11
8xC51
ADS1255
ADS1256
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