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ADS7845 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - TOUCH SCREEN CONTROLLER - Burr-Brown Corporation

भाग संख्या ADS7845
समारोह TOUCH SCREEN CONTROLLER
मैन्युफैक्चरर्स Burr-Brown Corporation 
लोगो Burr-Brown Corporation लोगो 
पूर्व दर्शन
1 Page
		
<?=ADS7845?> डेटा पत्रक पीडीएफ

ADS7845 pdf
SPECIFICATIONS
At TA = –40°C to +85°C, +VCC = +2.7V, VREF = +2.5V, fSAMPLE = 125kHz, fCLK = 16 • fSAMPLE = 2MHz, 12-bit mode, and digital inputs = GND or +VCC, unless
otherwise noted.
ADS7845E
PARAMETER
RESOLUTION
ANALOG INPUT
Full-Scale Input Span
Absolute Input Range
Capacitance
Leakage Current
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity Error
Offset Error
Gain Error
Noise
Power Supply Rejection Ratio
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
Multiplexer Settling Time
Aperture Delay
Aperture Jitter
Channel-to-Channel Isolation
SWITCH DRIVERS
On-Resistance
UL, UR
LL, LR
REFERENCE INPUT
Range
Resistance
Input Current
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels, Except PENIRQ
VIH
VIL
VOH
VOL
PENIRQ
VOL
Data Format
POWER SUPPLY REQUIREMENTS
+VCC
Quiescent Current
Power Dissipation
TEMPERATURE RANGE
Specified Performance
CONDITIONS
Positive Input - Negative Input
Positive Input
Negative Input
MIN
0
–0.2
–0.2
11
VIN = 2.5Vp-p at 50kHz
3
TYP
12
25
0.1
30
70
500
30
100
100
MAX
VREF
+VCC +0.2
+0.2
±2
±6
±4
12
125
CS = GND or +VCC
fSAMPLE = 12.5kHz
CS = +VCC
| IIH | +5µA
| IIL | +5µA
IOH = –250µA
IOL = 250µA
TA = 0°C to +85°C, 100kPull-Up
Specified Performance(2)
fSAMPLE = 12.5kHz
Shutdown Mode with
DCLK = DIN = +VCC
+VCC = +2.7V
1.0
+VCC • 0.7
–0.3
+VCC • 0.8
7
7
5
13
2.5
0.001
CMOS
Straight Binary
2.7
280
220
–40
+VCC
40
3
+VCC +0.3
+0.8
0.4
0.8
5.5
650
3
1.8
+85
NOTE: (1) LSB means Least Significant Bit. With VREF equal to +2.5V, one LSB is 610µV. (2) ADS7845 will operate down to 2.0V.
UNITS
Bits
V
V
V
pF
µA
Bits
LSB(1)
LSB
LSB
µVrms
dB
Clk Cycles
Clk Cycles
kHz
ns
ns
ps
dB
V
G
µA
µA
µA
V
V
V
V
V
µA
µA
µA
mW
°C
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
ADS7845
2

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डाउनलोड[ ADS7845 Datasheet.PDF ]


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