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ADC122S101 Datasheet(PDF) 5 Page - Texas Instruments

No. de pieza ADC122S101
Descripción Electrónicos  2 Channel, 500 ksps to 1 Msps 12-Bit A/D Converter
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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ADC122S101 Datasheet(HTML) 5 Page - Texas Instruments

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ADC122S101
www.ti.com
SNAS286C – MARCH 2005 – REVISED JANUARY 2010
ADC122S101 Converter Electrical Characteristics
(1) (continued)
The following specifications apply for VA = +2.7 V to 5.25 V, GND = 0V, fSCLK = 8 MHz to 16 MHz, fSAMPLE = 500 ksps to 1
Msps, CL = 35 pF unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C.
Limits
Symbol
Parameter
Conditions
Typical
Units
(2)
COUT
TRI-STATE® Output Capacitance
2
4
pF (max)
Output Coding
Straight (Natural) Binary
POWER SUPPLY CHARACTERISTICS (CL = 10 pF)
2.7
V (min)
VA
Analog Supply Voltage
5.25
V (max)
VA = +5.25V
2.5
3.0
mA (max)
fSAMPLE = 1 Msps, fIN = 40.3 kHz
Supply Current, Normal Mode
(Operational, CS low)
VA = +3.6V,
1.2
1.6
mA (max)
fSAMPLE = 1 Msps, fIN = 40.3 kHz
IA
VA = +5.25V
60
nA
fSAMPLE = 0 ksps
Supply Current, Shutdown (CS high)
VA = +3.6V,
38
nA
fSAMPLE = 0 ksps
VA = +5.25V
13.1
15.8
mW (max)
Power Consumption, Normal Mode
(Operational, CS low)
VA = +3.6V
4.3
5.8
mW (max)
PD
VA = +5.25V
0.32
µW
Power Consumption, Shutdown (CS
high)
VA = +3.6V
0.14
µW
AC ELECTRICAL CHARACTERISTICS
8
MHz (min)
fSCLK
Maximum Clock Frequency
(3)
16
MHz (max)
500
ksps (min)
fS
Sample Rate
(3)
1
Msps (max)
tCONV
Conversion Time
13
SCLK cycles
30
% (min)
DC
SCLK Duty Cycle
fSCLK = 16 MHz
50
70
% (max)
tACQ
Track/Hold Acquisition Time
Full-Scale Step Input
3
SCLK cycles
Throughput Time
Acquisition Time + Conversion Time
16
SCLK cycles
(3)
This is the frequency range over which the electrical performance is guaranteed. The device is functional over a wider range which is
specified under Operating Ratings.
Copyright © 2005–2010, Texas Instruments Incorporated
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