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ADC102S021 Fiches technique(PDF) 5 Page - Texas Instruments

No de pièce ADC102S021
Description  ADC102S021 2 Channel, 50 ksps to 200 ksps, 10-Bit A/D Converter
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

ADC102S021 Fiches technique(HTML) 5 Page - Texas Instruments

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ADC102S021
www.ti.com
SNAS281G – FEBRUARY 2005 – REVISED MARCH 2013
ADC102S021 Converter Electrical Characteristics
(1) (continued)
The following specifications apply for VA = +2.7V to 5.25V, GND = 0V, CL = 50 pF, fSCLK = 0.8 MHz to 3.2 MHz, fSAMPLE = 50
ksps to 200 ksps, unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C.
Parameter
Test Conditions
Typ
Limits(1)
Units
DIGITAL OUTPUT CHARACTERISTICS
ISOURCE = 200 µA
VA − 0.03
VA − 0.5
V (min)
VOH
Output High Voltage
ISOURCE = 1 mA
VA − 0.1
V
ISINK = 200 µA
0.03
0.4
V (max)
VOL
Output Low Voltage
ISINK = 1 mA
0.1
V
IOZH, IOZL TRI-STATE Leakage Current
±0.01
±1
µA (max)
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
Supply Voltage
5.25
V (max)
VA = +5.25V,
1.3
1.8
mA (max)
fSAMPLE = 200 ksps, fIN = 40 kHz
Supply Current, Normal Mode
(Operational, CS low)
VA = +3.6V,
0.55
0.7
mA (max)
fSAMPLE = 200 ksps, fIN = 40 kHz
IA
VA = +5.25V,
90
nA
fSAMPLE = 0 ksps
Supply Current, Shutdown (CS high)
VA = +3.6V,
32
nA
fSAMPLE = 0 ksps
VA = +5.25V
6.9
9.5
mW (max)
Power Consumption, Normal Mode
(Operational, CS low)
VA = +3.6V
1.94
2.5
mW (max)
PD
VA = +5.25V
0.47
µW
Power Consumption, Shutdown (CS
high)
VA = +3.6V
0.12
µW
AC ELECTRICAL CHARACTERISTICS
0.8
MHz (min)
fSCLK
Clock Frequency
See(2)
3.2
MHz (max)
50
ksps (min)
fS
Sample Rate
See(2)
200
ksps (max)
tCONV
Conversion Time
13
SCLK cycles
30
% (min)
DC
SCLK Duty Cycle
fCLK = 3.2 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
(2)
This is the frequency range over which the electrical performance is specified. The device is functional over a wider range which is
specified under Operating Ratings.
ADC102S021 Timing Specifications
The following specifications apply for VA = +2.7V to 5.25V, GND = 0V, CL = 50 pF, fSCLK = 0.8 MHz to 3.2 MHz, fSAMPLE = 50
ksps to 200 ksps, Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C.
Parameter
Test Conditions
Typ
Limits(1)
Units
VA = +3.0V
−3.5
tCSU
Setup Time SCLK High to CS Falling Edge
See(2)
10
ns (min)
VA = +5.0V
−0.5
VA = +3.0V
+4.5
tCLH
Hold time SCLK Low to CS Falling Edge
See(2)
10
ns (min)
VA = +5.0V
+1.5
(1)
Tested limits are specified to Texas Instrument's AOQL (Average Outgoing Quality Level).
(2)
Clock may be either high or low when CS is asserted as long as setup and hold times tCSU and tCLH are strictly observed.
Copyright © 2005–2013, Texas Instruments Incorporated
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