AD7147A Analog Devices, AD7147A Datasheet - Page 30

• Manufacturer Part Number: AD7147A
• Manufacturer: Analog Devices

Specifications of AD7147A

• Resolution (bits): 16bit
• # Chan: 13
• Sample Rate: 111SPS
• Interface: I²C/Ser 2-Wire,Ser,SPI
• Analog Input Type: Capacitive
• Ain Range: ± 8 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD7147A
GPIO INPUT HIGH WHEN REGISTER IS READ BACK
GPIO INPUT LOW WHEN REGISTER IS READ BACK
READBACK
GPIO INPUT HIGH WHEN REGISTER IS READ BACK
GPIO INPUT LOW WHEN REGISTER IS READ BACK
READBACK
1
OUTPUT
OUTPUT
READ GPIO_INT_STATUS BIT TO RESET INT OUTPUT.
SERIAL
1
OUTPUT
OUTPUT
READ GPIO_INT_STATUS BIT TO RESET INT OUTPUT.
INPUT
INPUT
Figure 42. Example of INT Output Controlled by the GPIO Input
Figure 43. Example of INT Output Controlled by the GPIO Input
SERIAL
GPIO
GPIO
INPUT
INPUT
INT
INT
GPIO
GPIO
INT
INT
(GPIO_SETUP = 01, GPIO_INPUT_CONFIG = 00)
(GPIO_SETUP = 01, GPIO_INPUT_CONFIG = 01)
1
1
Rev. B | Page 30 of 68
GPIO INPUT HIGH WHEN REGISTER IS READ BACK
GPIO INPUT HIGH WHEN REGISTER IS READ BACK
GPIO INPUT LOW WHEN REGISTER IS READ BACK
GPIO INPUT LOW WHEN REGISTER IS READ BACK
READBACK
READBACK
1
NOTES
1
OUTPUT
OUTPUT
OUTPUT
OUTPUT
READ GPIO_INT_STATUS BIT TO RESET INT OUTPUT.
READ GPIO_INT_STATUS BIT TO RESET INT OUTPUT.
SERIAL
SERIAL
INPUT
INPUT
INPUT
INPUT
Figure 44. Example of INT Output Controlled by the GPIO Input
Figure 45. Example of INT Output Controlled by the GPIO Input
GPIO
GPIO
GPIO
GPIO
INT
INT
INT
INT
(GPIO_SETUP = 01, GPIO_INPUT_CONFIG = 10)
(GPIO_SETUP = 01, GPIO_INPUT_CONFIG = 11)
1
1