ADC08351CIMTC National Semiconductor, ADC08351CIMTC Datasheet - Page 5

• Manufacturer Part Number: ADC08351CIMTC
• Description: 8-Bit/ 42 MSPS/ 40 mW A/D Converter
• Manufacturer: National Semiconductor

Digital Output Characteristics
I
I
V
V
I
I
AC Electrical Characteristics
f
f
t
t
t
t
t
ENOB
SINAD
SNR
THD
SFDR
Symbol
OH
OL
OZH
OZL
C1
C2
OD
DS
OH
EN
DIS
The following specifications apply for V
f
Boldface limits apply for T
Converter Electrical Characteristics
OH
OL
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed speci-
fications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.
Note 2: All voltages are measured with respect to GND = AGND = DGND = 0V, unless otherwise specified.
Note 3: When the input voltage at any pin exceeds the power supplies (that is, less than AGND or DGND, or greater than V
be limited to 25 mA. The 50 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of
25 mA to two.
Note 4: The absolute maximum junction temperature (T
junction-to-ambient thermal resistance (
TSSOP,
device under normal operation will typically be about 68 mW (40 mW quiescent power + 23 mW reference ladder power + 5 mW due to 1 TTL loan on each digital
output). The values for maximum power dissipation listed above will be reached only when the ADC08351 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.
Note 5: Human body model is 100 pF capacitor discharged through a 1.5 k
Note 6: See AN-450, “Surface Mounting Methods and Their Effect on Product Reliability”, or the section entitled “Surface Mount” found in any post 1986 National
Semiconductor Linear Data Book, for other methods of soldering surface mount devices.
Note 7: All inputs are protected as shown below. Input voltage magnitudes up to 500 mV above the supply voltage or 500 mV below GND will not damage this device.
However, errors in the A/D conversion can occur if the input goes above V
input voltage must be 3.3 V
CLK
,
= 42 MHz, 50% duty cycle, unless otherwise specified.
JA
is 135˚C/W, so P
High Level Output Current
Low Level Output Current
High Level Output Voltage
Low Level Output Voltage
TRI-STATE Output Current
Maximum Conversion Rate
Minimum Conversion Rate
Output Delay
Pipline Delay (Latency)
Sampling (Aperture) Delay
Output Hold Time
OE Low to Data Valid
OE High to High Z State
Effective Number of Bits
Signal-to-Noise & Distortion
Signal-to-Noise Ratio
Total Harmonic Distortion
Spurious Free Dynamic Range
Parameter
DC
D
MAX = 926 mW at 25˚C and 481 mW at the maximum operating ambient temperature of 85˚C. Note that the power dissipation of this
to ensure accurate conversions.
A
= T
JA
), and the ambient temperature (T
MIN
to T
A
= V
MAX
D
V
V
V
V
OE = V
CLK High to Data Valid
CLK Low to Acquisition of Data
CLK High to Data Invalid
Loaded as in Figure 2
Loaded as in Figure 2
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
J
: all other limits T
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
max) for this device is 150˚C. The maximum allowable power dissipation is dictated by T
= +3.0 V
D
D
D
D
= 2.7V, V
= 2.7V, OE = DGND, V
= 2.7V, I
= 2.7V, I
= 30 MHz, f
= 42 MHz, f
= 42 MHz, f
= 30 MHz, f
= 42 MHz, f
= 42 MHz, f
= 30 MHz, f
= 42 MHz, f
= 42 MHz, f
= 30 MHz, f
= 42 MHz, f
= 42 MHz, f
= 30 MHz, f
= 42 MHz, f
= 42 MHz, f
D
DC
= 3.3V, V
, V
OH
OL
A
OH
A
or below AGND by more than 300 mV. As an example, if V
REF
), and can be calculated using the formula P
(Continued)
= 1.6 mA
= −360 µA
resistor. Machine model is 220 pF discharged through ZERO Ohms.
Conditions
= V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
A
5
= 2.4V, V
OH
= 1 MHz
= 4.4 MHz
= 21 MHz
= 1 MHz
= 4.4 MHz
= 21 MHz
= 1 MHz
= 4.4 MHz
= 21 MHz
= 1 MHz
= 4.4 MHz
= 21 MHz
= 1 MHz
= 4.4 MHz
= 21 MHz
= 25˚C (Notes 7, 8)
D
−0.5V
= 3.3V or V
OL
IN
= 0.4V
= 1.63 V
OL
= 0V
P-P
, OE = 0V, C
(Note 9)
Typical
D
2.65
±
−57
−51
−46
0.2
2.5
7.2
7.2
6.8
14
14
10
45
45
43
44
45
44
57
54
49
MAX = (T
2
2
9
10
A
or V
D
L
), the current at that pin should
J
= 20 pF,
max - T
(Note 9)
Limits
A
−1.1
38.5
−41
1.8
6.1
is 3.0 V
42
19
41
41
A
)/
JA
DC
. For the 20-pin
www.national.com
, the full-scale
MHz (min)
Bits (min)
mA (min)
mA (min)
ns (max)
dB (min)
dB (min)
dB (min)
dB (min)
(Limits)
J
Cycles
Units
Clock
max, the
MHz
Bits
Bits
µA
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
ns
ns
V
V