AD7877 Analog Devices, AD7877 Datasheet - Page 41

• Manufacturer Part Number: AD7877
• Description: Touch Screen Controller
• Manufacturer: Analog Devices

Specifications of AD7877

• Resolution (bits): 12bit
• # Chan: 9
• Sample Rate: 125kSPS
• Interface: Ser
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref),Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: CSP

Data Sheet
Register Name: AUX2
Write Address:
Read Address:
Default Value:
Type:
This register contains the 12-bit result of the measurement at
Auxiliary Input 2.
Register Name: AUX3
Write Address:
Read Address:
Default Value:
Type:
This register contains the 12-bit result of the measurement at
Auxiliary Input 3.
Register Name: BAT1
Write Address:
Read Address:
Default Value:
Type:
This register contains the 12-bit result of the measurement at
Battery Monitor Input 1.
Register Name: BAT2
Write Address:
Read Address:
Default Value:
Type:
This register contains the 12-bit result of the measurement at
Battery Monitor Input 2.
N/A
10100
0x000
Read only
N/A
10101
0x000
Read only
N/A
10110
0x000
Read only
N/A
10111
0x000
Read only
Rev. D | Page 41 of 44
Register Name: TEMP1
Write Address:
Read Address:
Default Value:
Type:
This register contains the 12-bit result of a temperature
measurement using single-ended conversion.
Register Name: TEMP2
Write Address:
Read Address:
Default Value:
Type:
This register contains the 12-bit result of a temperature
measurement using a differential conversion.
Register Name: Z1
Write Address:
Read Address:
Default Value:
Type:
This register contains the 12-bit result of a measurement at the
X+ input with excitation voltage applied to Y+ and X− (used for
touch-pressure calculation).
N/A
11000
0x000
Read only
N/A
11001
0x000
Read only
N/A
11010
0x000
Read only
AD7877