EVAL-AD7156EBZ Analog Devices Inc, EVAL-AD7156EBZ Datasheet - Page 10

• Manufacturer Part Number: EVAL-AD7156EBZ
• Description: Evaluation Board I.c.
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7156EBZ

• Sensor Type: Touch, Capacitive
• Interface: I²C
• Voltage - Supply: 1.8 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: AD7156
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

AD7156
–0.05
–0.15
–0.25
–0.35
16.50
16.25
16.00
15.75
15.50
15.25
15.00
14.75
14.50
0.35
0.25
0.15
0.05
–1
–2
–3
–4
–5
Figure 16. Capacitance Input Offset Error vs. Temperature,
Figure 17. Capacitance Input Gain Error vs. Temperature,
5
4
3
2
1
0
–50
–50
–50
V
DD
Figure 18. EXC Frequency Error vs. Temperature,
= 1.8 V and 3.3 V, CIN and EXC Pins Open Circuit
1.8V
2V
–25
–25
V
V
DD
DD
2.7V
= 1.8 V, 2 V, 2.7 V, and 3.6 V
= 2.7 V, CIN to EXC = 4 pF
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
TEMPERATURE (°C)
25
3.6V
25
3.3V
50
50
50
75
1.8V
75
100
100
100
Rev. 0 | Page 10 of
28
Figure 19. CAPDAC Differential Nonlinearity (DNL), V
–10
–20
80
70
60
50
40
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
20
10
0
–50
0
–50
0
Figure 21. Power-Down Current vs. Temperature,
1.8V
–25
5
–25
Figure 20. Current vs. Temperature,
V
V
DD
DD
= 1.8 V, 2 V, 2.7 V, and 3.6 V
= 1.8 V, 2 V, 2.7 V, and 3.6 V
10
TEMPERATURE (°C)
0
TEMPERATURE (°C)
0
CAPDAC CODE
3.6V
2.7V
2V
15
2.7V
3.6V
2V
25
25
20
50
50
25
DD
75
1.8V
75
= 1.8 V
30