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CLC5956 Fiches technique(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce CLC5956
Description  12-bit, 65 MSPS Broadband Monolithic A/D Converter
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

CLC5956 Fiches technique(HTML) 4 Page - National Semiconductor (TI)

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Converter Electrical Characteristics (Continued)
The following specifications apply for AV
CC = DVCC = +5V, 52 MSPS, 50% Encode Clock Duty Cycle, CL = 7 pF. Boldface
limits apply for T
A = Tmin = −40˚C to Tmax = +85˚C, all other limits TA = 25˚C (Notes 2, 3, 4).
Symbol
Parameter
Conditions
Min
Typ
Max
Units
ANALOG INPUTS
R
IN
(Diff)
Analog Input Resistance
(Differential)
1000
C
IN
Analog Input Capacitance
2
pF
ENCODE INPUTS
V
IL
Logic Input Low Voltage
3.0
3.5
V
V
IH
Logic Input High Voltage
4.0
4.5
V
I
IL
Logic Input Low Current
1
5
µA
I
IH
Logic Input High Current
16
25
µA
DIGITAL OUTPUTS
V
OL
Logic Output Low Voltage
0.4
V
V
OH
Logic Output High Voltage
2.4
V
TIMING
F
smax
Maximum Conversion Rate
65
MSPS
F
smin
Minimum Conversion Rate
10
MSPS
PWH
Pulse Width High
7.7
ns
PWL
Pulse Width Low
7.7
ns
Pipeline Delay (Note 5)
3.0
CLK Cy
Output Propagation Delay
1.6
ns
POWER REQUIREMENTS
I
CC
Total Operating Supply Current
65 MSPS
123
150
mA
Power Consumption
65 MSPS
615
750
mW
Power Supply Rejection Ratio
64
dB
Note 1: “Absolute Maximum Ratings” are limiting values, to be applied individually, and beyond which the serviceability of the circuit may be impaired. Functional op-
erability under any of these conditions is not necessarily implied. Exposure to maximum ratings for extended periods may affect device reliability.
Note 2: Limits are 100% tested at 25˚C.
Note 3: Typical characteristics are the mean values of the distributions of deliverable converters at 25˚C.
Note 4: Outgoing quality levels are determined from tested parameters.
Note 5: Max pipeline delay rating is based upon product characterization and simulation.
Note 6: The absolute maximum junction (TJmax) temperature for this device is 175˚C. The maximum allowable power dissipation is dictated by TJmax, the
junction-to-ambient thermal resistance (
θJA), and the ambient temperature (TA), and can be calculated using the formula PDmax = (TJmax – TA)/θJA. For the 48-pin
TSSOP,
θJA is 56˚C/W, so PDmax = 2.68W at 25˚C and 1.6W at the maximum operating ambient temperature of 85˚C. Note that the power dissipation of this device
under normal operation will typically be about 625 mW (615 mW quiescent power + 10 mW due to 1 TTL load on each digital output). The values of absolute maximum
power dissipation will only be reached when the CLC5956 is operated in a severe fault condition (e.g., when input or output pins are driven beyond the power supply
voltages, or the power supply polarity is reversed). Obviously, such conditions should always be avoided.
Typical Performance Characteristics (AV
CC = DVCC = +5V)
SNR and SFDR vs Input Frequency
DS015011-3
SNR and SFDR vs Input Frequency
DS015011-4
SNR and SFDR vs Input Frequency
DS015011-5
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