AD7879ACPZ-RL Analog Devices Inc, AD7879ACPZ-RL Datasheet - Page 8

• 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

AD7879
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
475
470
465
460
455
450
445
440
435
430
425
700
600
500
400
300
200
100
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
1.6
–40
–40
Figure 11. Full Power-Down I
CC
Figure 9. Supply Current vs. Temperature
1.8
= 2.6 V, f
–25
–25
Figure 10. Supply Current vs. V
2.0
–10
–10
2.2
SAMPLE
TEMPERATURE (°C)
TEMPERATURE (°C)
10
2.4
10
= 125 kHz, f
V
CC
2.6
25
(V)
25
DD
2.8
40
vs. Temperature
3.0
50
DCLK
55
CC
3.2
= 16 × f
75
70
3.4
100
85
3.6
SAMPLE
= 2 MHz, unless otherwise noted.
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–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
0
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
0
–40
–40
Figure 13. Change in ADC Offset vs. Temperature
Figure 12. Change in ADC Gain vs. Temperature
512
3.6V
–25
–25
1024
–10
–10
Figure 14. ADC INL Plot
1536
TEMPERATURE (°C)
TEMPERATURE (°C)
10
10
CODE
2048
25
25
1.6V
2560
40
40
1.6V
3072
55
55
3.6V
2.6V
3584
70
70
2.6V
85
85
4
096