AD7877 Analog Devices, AD7877 Datasheet - Page 41
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AD7877
Manufacturer Part Number
AD7877
Description
Touch Screen Controller
Manufacturer
Analog Devices
Datasheet
1.AD7877.pdf
(44 pages)
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
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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