AD7879ACPZ-RL Analog Devices Inc, AD7879ACPZ-RL Datasheet - Page 19

• Manufacturer Part Number: AD7879ACPZ-RL
• Description: IC ADC 12BIT CTLR TOUCH 16LFCSP
• Manufacturer: Analog Devices Inc
• Type: Touch Screen Controller: 4-Wire Resistiver

Specifications of AD7879ACPZ-RL

• Resolution (bits): 12 b
• Data Interface: I²C
• Package / Case: 16-LFCSP
• Mounting Type: Surface Mount
• Voltage - Supply: 1.6 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Voltage Supply Source: Single Supply
• Sampling Rate (per Second): 105k
• Sampling Rate: 105kSPS
• Supply Voltage Range - Analog: 1.6V To 3.6V
• Supply Current: 480µA
• Digital Ic Case Style: CSP
• No. Of Pins: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER MAP
Table 9. Register Table
Address
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
1
Do not write to addresses outside the register map.
1
Name
Unused
Control Register 1
Control Register 2
Control Register 3
AUX/VBAT high limit
AUX/VBAT low limit
TEMP high limit
TEMP low limit
X+
Y+
X+ (Z1)
Y− (Z2)
AUX/VBAT
TEMP
Revision and device ID
Description
Unused
PENIRQ enable, channel selection for manual selection, ADC mode,
acquisition time, and conversion timer
ADC power management, GPIO control, pen interrupt, averaging,
median filter, software reset, and FCD
Status of high/low limit comparisons for TEMP, AUX/VBAT and enable bits to
allow them to become interrupts; channel selection for slave/master mode
AUX/VBAT high limit for comparison
AUX/VBAT low limit for comparison
TEMP high limit for comparison
TEMP low limit for comparison
X+ measurement for Y position
Y+ measurement for X position
X+ measurement for touch pressure calculation (Z1)
Y− measurement for touch pressure calculation (Z2)
AUX/VBAT measurement
Temperature conversion Measurement
Revision and device ID
Rev. 0 | Page 19 of 36
Default
Value
0x0000
0x0000
0x4040
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
0x0379 (AD7879-1)
0x037A (AD7879)
AD7879
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R