EVAL-AD7877EBZ Analog Devices Inc, EVAL-AD7877EBZ Datasheet - Page 9

• Manufacturer Part Number: EVAL-AD7877EBZ
• Description: BOARD EVALUATION FOR AD7877
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7877EBZ

• Main Purpose: Interface, Touch Screen Controller
• Embedded: No
• Utilized Ic / Part: AD7877
• Primary Attributes: 4-Wire Resistive Touch Screen Controller, SPI Interface, On-Chip: Temp Sensor, Voltage Reference, 8-Bit DAC
• Secondary Attributes: USB GUI, LCD Noise Reduction Feature, 2.7 ~ 5.25 V, Wake Up on Touch Feature
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
1000
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
800
700
600
500
900
800
700
600
500
400
0.6
0.5
0.4
0.3
0.2
0.1
0
–50
–50
2.0
Figure 8. Change in ADC Gain vs. Temperature
CC
2.3
Figure 6. Supply Current vs. Temperature
= 2.7 V, V
–30
–30
2.6
Figure 7. Supply Current vs. V
–10
2.9
–10
ADC AND REF
REF
TEMPERATURE (°C)
TEMPERATURE (°C)
3.2
= 2.5 V, f
ADC, REF, AND DAC
10
0
V
3.5
CC
ADC, REF, AND DAC
(V)
ADC AND REF
3.8
30
30
SAMPLE
4.1
= 125 kHz, f
CC
50
50
4.4
4.7
70
70
5.0
DCLK
90
90
= 16 × f
Rev. C | Page 9 of 44
SAMPLE
= 2 MHz, unless otherwise noted.
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–0.2
–0.4
–0.6
–0.8
–1.0
200
180
160
140
120
100
0.6
0.5
0.4
0.3
0.2
0.1
1.0
0.8
0.6
0.4
0.2
80
0
0
–50
–50
0
Figure 10. Change in ADC Offset vs. Temperature
Figure 9. Full Power-Down I
500
–30
–30
1000
Figure 11. ACD INL Plot
–10
–10
1500
TEMPERATURE (°C)
TEMPERATURE (°C)
10
10
2000
CODE
DD
30
30
vs. Temperature
2500
50
50
3000
3500
70
70
AD7877
4000
90
90