AD7843ARQ Analog Devices Inc, AD7843ARQ Datasheet - Page 8

• Manufacturer Part Number: AD7843ARQ
• Description: IC ADC 12BIT TOUCHSCREEN 16-QSOP
• Manufacturer: Analog Devices Inc
• Type: Resistiver

Specifications of AD7843ARQ

• Rohs Status: RoHS non-compliant
• Touch Panel Interface: 4-Wire
• Number Of Inputs/keys: 1 TSC
• Resolution (bits): 12 b
• Data Interface: Serial
• Data Rate/sampling Rate (sps, Bps): 125k
• Voltage Reference: External
• Voltage - Supply: 2.2 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Voltage Supply Source: Single Supply
• Sampling Rate (per Second): 125k
• For Use With: EVAL-AD7843EBZ - BOARD EVAL FOR AD7843
• Lead Free Status / RoHS Status: Not Compliant

AD7843
TYPICAL PERFORMANCE CHARACTERISTICS
–0.05
–0.10
–0.15
–0.20
0.20
0.15
0.10
0.05
207
206
205
204
203
202
201
200
199
198
230
220
210
200
190
180
170
160
150
0
–40
–40
2.2
–20
–20
2.6
Figure 6. Change in Gain vs. Temperature
Figure 4. Supply Current vs. Temperature
Figure 5. Supply Current vs. +V
3.0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
3.4
20
20
+V
CC
(V)
f
V
3.8
40
40
SAMPLE
REF
= +V
= 12.5kHz
4.2
60
60
CC
CC
4.6
80
80
100
100
5.0
Rev. B | Page 8 of 20
1000
–0.2
–0.4
–0.6
100
141
140
139
138
137
136
135
134
0.6
0.4
0.2
0
–40
–40
2.2
Figure 7. Power-Down Supply Current vs. Temperature
–20
–20
Figure 9. Change in Offset vs. Temperature
2.7
Figure 8. Maximum Sample Rate vs. +V
0
0
3.2
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
+V
CC
3.7
(V)
40
40
4.2
60
60
V
REF
= +V
4.7
CC
80
80
CC
5.2
100
100