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STMPE811 Datasheet(PDF) 51 Page - STMicroelectronics

Part # STMPE811
Description  8-bit port expander with advanced touchscreen controller
Download  54 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE811 Datasheet(HTML) 51 Page - STMicroelectronics

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STMPE811
Electrical specifications
51/54
Table 22.
ADC specification (-40
° C to 85 ° C)
Table 23.
Switch drivers specification
Table 24.
Voltage reference specification
Parameter
Test condition
Value
Unit
Min
Typ
Max
Full-scale input span
0
Vref
V
Absolute input range
VCC +0.2
V
Input capacitance
25
pF
Leakage current
0.1
μA
Resolution
12
Bits
No missing codes
11
Bits
Integral linearity error
±4
±6Bits
Offset error
±5
±7LSB
Gain error
±14
±18
LSB
Noise
Including internal Vref
70
μVrms
Power supply rejection ratio
50
dB
Throughput rate
180
ksps
Parameter
Test condition
Value
Unit
Min
Typ
Max
ON resistance X+, Y+
5.5
Ω
ON resistance X-, Y-
7.3
Ω
Drive current
Duration 100 ms
50
mA
Parameter
Test condition
Value
Unit
Min
Typ
Max
Internal reference voltage
2.45
2.50
2.55
V
Internal reference drift
25
Ppm/C
Output impedance
Internal reference ON
300
Ω
Internal reference OFF
1
G
Ω


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