AMC7812B_15 Datasheet, PDF (10/92 Pages) Texas Instruments – 12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors

AMC7812B
SBAS625A – SEPTEMBER 2013 – REVISED SEPTEMBER 2013
www.ti.com
NAME
IOV_DD
REF-DAC
REF-OUT
RESET
SCLK/SCL
SDI/SDA
SDO/A1
SPI/I2C
PIN DESCRIPTIONS (continued)
NO.
DESCRIPTION
7
Interface power supply
58
DAC reference Input
57
Internal reference output
1
Reset input, active low. A logic low on this pin causes the device to perform a hardware reset.
5
Serial clock input of the main serial interface. This pin functions as the SPI clock when the SPI/I2C pin is high. This pin
functions as the I²C clock when the SPI/I2C pin is low.
Serial interface data. This pin functions as SDI for the serial peripheral interface (SPI) when the SPI/I2C pin (pin 12) is
4
high. This pin functions as SDA for the I²C interface when the SPI/I2C pin is low.
10
SDO for SPI when the SPI/I2C pin is high. Slave address selection A1 for I²C when the SPI/I2C pin is low.
12
Interface selection pin; digital input. When this pin is tied to IOV_DD, the SPI is enabled and the I²C interface is disabled.
When this pin is tied to ground, the SPI is disabled and the I²C interface is enabled.
10
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