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ADC12020 Fiches technique(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No de pièce ADC12020
Description  12-Bit, 20 MSPS, 185 mW A/D Converter with Internal Sample-and-Hold
Download  23 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

ADC12020 Fiches technique(HTML) 6 Page - National Semiconductor (TI)

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Converter Electrical Characteristics (Continued)
Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V
A =VD = +5V, VDR =
+3.0V, PD = 0V, V
REF = +2.0V, fCLK = 20 MHz, tr =tf = 3 ns, CL = 25 pF/pin. Boldface limits apply for TA =TJ =TMIN to
T
MAX: all other limits TA =TJ = 25˚C (Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 10)
Units
(Limits)
SFDR
Spurious Free Dynamic Range
f
IN = 1 MHz, VIN = −0.5 dBFS
86
dB
f
IN = 4.4 MHz, VIN = −0.5 dBFS
86
dB
f
IN = 10.1 MHz,
V
IN = −0.5 dBFS
+25˚C
86
71
dB(min)
+85˚C
68
dB(min)
IMD
Intermodulation Distortion
f
IN = 4.7 MHz and 5.3 MHz,
each = −7 dBFS
−73
dBFS
REFERENCE AND ANALOG INPUT CHARACTERISTICS
V
CM
Common Mode Input Voltage
V
A/2
V
C
IN
V
IN Input Capacitance (each pin to
GND)
V
IN = 2.5 Vdc
+ 0.7 V
rms
(CLK LOW)
8
pF
(CLK HIGH)
7
pF
V
REF
Reference Voltage (Note 13)
2.00
1.0
V (min)
2.4
V (max)
Reference Input Resistance
100
M
Ω(min)
DC and Logic Electrical Characteristics
Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V
A =VD = +5V, VDR =
+3.0V, PD = 0V, V
REF = +2.0V, fCLK = 20 MHz, tr =tf = 3 ns, CL = 25 pF/pin. Boldface limits apply for TA =TJ =TMIN to
T
MAX: all other limits TA =TJ = 25˚C (Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 10)
Units
(Limits)
CLK, PD, OE DIGITAL INPUT CHARACTERISTICS
V
IN(1)
Logical “1” Input Voltage
V
D = 5.25V
2.0
V (min)
V
IN(0)
Logical “0” Input Voltage
V
D = 4.75V
1.0
V (max)
I
IN(1)
Logical “1” Input Current
V
IN = 5.0V
10
µA
I
IN(0)
Logical “0” Input Current
V
IN = 0V
−10
µA
C
IN
Digital Input Capacitance
5
pF
D0–D11 DIGITAL OUTPUT CHARACTERISTICS
V
OUT(1)
Logical “1” Output Voltage
I
OUT = −0.5 mA
V
DR = 2.5V
2.3
V (min)
V
DR =3V
2.7
V (min)
V
OUT(0)
Logical “0” Output Voltage
I
OUT = 1.6 mA, VDR =3V
0.4
V (max)
I
OZ
TRI-STATE Output Current
V
OUT = 2.5V or 5V
100
nA
V
OUT = 0V
−100
nA
+I
SC
Output Short Circuit Source
Current
V
OUT = 0V
−20
mA (min)
−I
SC
Output Short Circuit Sink Current
V
OUT =VDR
20
mA (min)
POWER SUPPLY CHARACTERISTICS
I
A
Analog Supply Current
PD Pin = DGND, V
REF = 2.0V
PD Pin = V
DR
32.3
8
41
mA(max)
mA
I
D
Digital Supply Current
PD Pin = DGND
PD Pin = V
DR,fCLK =0
3.3
3.5
4.5
mA (max)
mA
I
DR
Digital Output Supply Current
PD Pin = DGND, C
L = 0 pF (Note 14)
PD Pin = V
DR,fCLK =0
3
0
mA (max)
mA
Total Power Consumption
PD Pin = DGND, C
L = 0 pF (Note 15)
PD Pin = V
DR,fCLK =0
178
40
227
mW
mW
PSRR1+
Power Supply Rejection Ratio
Rejection of Positive Full-Scale Error
with V
A = 4.75V to 5.25V
69
dBFS
www.national.com
6


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