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TSC2005IYZLR Datasheet(PDF) 3 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
No. de pieza TSC2005IYZLR
Descripción Electrónicos  1.6V to 3.6V, 12-Bit, Nanopower, 4-Wire TOUCH SCREEN CONTROLLER with SPI??Interface
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Fabricante Electrónico  BURR-BROWN [Burr-Brown (TI)]
Página de inicio  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

TSC2005IYZLR Datasheet(HTML) 3 Page - Burr-Brown (TI)

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ELECTRICAL CHARACTERISTICS
TSC2005
SBAS379A – DECEMBER 2006 – REVISED MAY 2007
At T
A = –40°C to +85°C, SNSVDD = VREF = +1.6V to +3.6V, I/OVDD = +1.2V to +3.6V, unless otherwise noted.
TSC2005
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
AUXILIARY ANALOG INPUT
Input voltage range
0
VREF
V
Input capacitance
12
pF
Input leakage current
–1
+1
µA
A/D CONVERTER
Resolution
Programmable: 10 or 12 bits
12
Bits
No missing codes
12-bit resolution
11
Bits
Integral linearity
±1.5
LSB(1)
SNSVDD = 1.6V, VREF = 1.6V
–0.8 to +0.3
LSB
Offset error
SNSVDD = 3.0V, VREF = 2.5V
+3.2 to +8.9
LSB
SNSVDD = 1.6V, VREF = 1.6V
–0.2 to 0
LSB
Gain error
SNSVDD = 3.0V, VREF = 2.5V
+3.8 to +4.4
LSB
REFERENCE INPUT
VREF range
1.6
SNSVDD
V
Non-cont. AUX mode, SNSVDD = 3V, VREF = 2.5V,
VREF input current drain
5.6
µA
TA = +25°C, fADC = 2MHz, fSCLK = 10MHz
Input impedance
A/D converter not converting
1
G
TOUCH SENSORS
PENIRQ Pull-Up Resistor, RIRQ
TA = +25°C, SNSVDD = 3V, VREF = 2.5V
51
k
Y+, X+
6
Switch
On-Resistance
Y–, X–
5
Switch drivers drive current(2)
100ms duration
50
mA
TEMPERATURE MEASUREMENT
Temperature range
–40
+85
°C
Differential method(3), SNSVDD = 3V VREF = 2.5V
1.6
°C/LSB
Resolution
TEMP1(4), SNSVDD = 3V VREF = 2.5V
0.3
°C/LSB
Differential method(3), SNSVDD = 3V VREF = 2.5V
±2
°C/LSB
Accuracy
TEMP1(4), SNSVDD = 3V VREF = 2.5V
±3
°C/LSB
INTERNAL OSCILLATOR
SNSVDD = 1.6V
3.6
MHz
Clock frequency, fOSC
SNSVDD = 3.0V
3.8
MHz
SNSVDD = 1.6V
0.0056
%/
°C
Frequency drift
SNSVDD = 3.0V
0.012
%/
°C
DIGITAL INPUT/OUTPUT
Logic family
CMOS
1.2V
≤ I/OVDD < 1.6V
0.7 × I/OVDD
I/OVDD + 0.3
V
VIH
1.6V
≤ I/OVDD ≤ 3.6V
0.7 × I/OVDD
I/OVDD + 0.3
V
1.2V
≤ I/OVDD < 1.6V
–0.3
0.2 × I/OVDD
V
VIL
1.6V
≤ I/OVDD ≤ 3.6V
–0.3
0.3 × I/OVDD
V
IIL
SCLK pin or CS pin
–1
1
µA
Logic level
CIN
10
pF
VOH
IOH = 2 TTL loads
I/OVDD – 0.2
I/OVDD
V
VOL
IOL = 2 TTL loads
0
0.2
V
ILEAK
Floating output
–1
1
µA
COUT
Floating output
10
pF
Data format
Straight Binary
(1)
LSB means Least Significant Bit. With VREF = +2.5V, one LSB is 610µV.
(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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