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AD7889ACBZ-RL Fiches technique(PDF) 3 Page - Analog Devices

No de pièce AD7889ACBZ-RL
Description  Low Voltage Controller for Touch Screens
Download  40 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD7889ACBZ-RL Fiches technique(HTML) 3 Page - Analog Devices

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Data Sheet
AD7879/AD7889
Rev. D | Page 3 of 40
SPECIFICATIONS
VCC = 1.6 V to 3.6 V, TA = −40°C to +85°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DC ACCURACY
Resolution
12
Bits
No Missing Codes
11
12
Bits
Integral Nonlinearity (INL)1
±3
LSB
LSB size = 390 µV
Differential Nonlinearity (DNL)1
LSB size = 390 µV
Negative DNL
−0.99
LSB
Positive DNL
2
LSB
Offset Error1, 2
±2
±6
LSB
Gain Error1, 2
±4
LSB
Noise3
70
µV rms
Power Supply Rejection3
60
dB
Internal Clock Frequency
2
MHz
Internal Clock Accuracy
1.8
2.2
MHz
SWITCH DRIVERS
On Resistance1
Y+, X+
6
Y−, X−
5
ANALOG INPUTS
Input Voltage Range
0
V
CC
V
DC Leakage Current
±0.1
µA
Input Capacitance
30
pF
Accuracy
0.3
%
TEMPERATURE MEASUREMENT
Temperature Range
−40
+85
°C
Resolution
0.3
°C
Accuracy2
±2
°C
Calibrated at 25°C
BATTERY MONITOR
Input Voltage Range
0.5
5
V
Input Impedance3
16
kΩ
Accuracy
2
5
%
Uncalibrated accuracy
LOGIC INPUTS (DIN, SCL, CS, SDA, GPIO)
Input High Voltage, V
INH
0.7 × V
CC
V
Input Low Voltage, V
INL
0.3 × V
CC
V
Input Current, I
IN
0.01
µA
V
IN = 0 V or VCC
Input Capacitance, C
IN
3
10
pF
LOGIC OUTPUTS (DOUT, GPIO, SCL, SDA, INT)
Output High Voltage, V
OH
V
CC − 0.2
V
Output Low Voltage, V
OL
0.4
V
Floating State Leakage Current
±0.1
µA
Floating State Output Capacitance2
5
pF
CONVERSION RATE3
Conversion Time
9.5
µs
Including 2 µs of acquisition time, median
and averaging (MAV) filter off; 2 µs of add-
itional time is required if the MAV filter is on
Throughput Rate
105
kSPS


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