TSC2007
www.ti.com
SBAS405–MARCH 2007
ELECTRICAL CHARACTERISTICS
At TA = –40°C to +85°C, VDD = +1.2V to +3.6V, unless otherwise noted.
TSC2007
TYP
PARAMETER
TEST CONDITIONS
MIN
0
MAX
VDD
+1
UNIT
AUXILIARY ANALOG INPUT
Input voltage range
Input capacitance
Input leakage current
A/D CONVERTER
Resolution
V
12
pF
µA
–1
Programmable: 8 or 12 bits
12
Bits
Bits
No missing codes
Integral linearity
12-bit resolution
11
±1.5
–1.2
–3.1
0.7
LSB(1)
LSB
LSB
LSB
LSB
VDD = 1.8V
VDD = 3.0V
VDD = 1.8V
VDD = 3.0V
Offset error
Gain error
0.1
TOUCH SENSORS
PENIRQ Pull-Up Resistor, RIRQ
TA = +25°C, VDD = 1.8V, command '1011' set '0000'
TA = +25°C, VDD = 1.8V, command '1011' set '0001'
51
90
6
kΩ
kΩ
Ω
Y+, X+
Switch
On-Resistance
Y–, X–
5
Ω
Switch drivers drive current(2)
INTERNAL TEMPERATURE SENSOR
Temperature range
100ms duration
50
mA
–40
+85
°C
VDD = 3V
1.94
1.04
0.35
0.19
±2
°C/LSB
°C/LSB
°C/LSB
°C/LSB
°C/LSB
°C/LSB
°C/LSB
°C/LSB
Differential
method(3)
VDD = 1.6V
Resolution
VDD = 3V
TEMP1(4)
,
VDD = 1.6V
VDD = 3V
Differential
method(3)
VDD = 1.6V
VDD = 3V
±2
Accuracy
±3
TEMP1(4)
VDD = 1.6V
±3
INTERNAL OSCILLATOR
VDD = 1.2V
VDD = 1.8V
VDD = 2.7V
VDD = 3.6V
VDD = 1.2V
VDD = 1.8V
VDD = 2.7V
VDD = 3.6V
3.19
3.66
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
%/°C
%/°C
8-Bit
3.78
3.82
Internal clock frequency, fCCLK
1.6
1.83
12-Bit
1.88
1.91
VDD = 1.6V
VDD = 3.0V
0.0056
0.012
Frequency drift
(1) LSB means Least Significant Bit. With VDD (REF) = +1.6V, one LSB is 391µV.
(2) Assured by design, but not tested. Exceeding 50mA source current may result in device degradation.
(3) Difference between TEMP1 and TEMP2 measurement; no calibration necessary.
(4) Temperature drift is –2.1mV/°C.
3
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