Rainbow-electronics MAX1215 Manual do Utilizador Página 2

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MAX1215
1.8V, 12-Bit, 250Msps ADC for
Broadband Applications
2 ________________________________________________________________________________________________________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AV
CC
= OV
CC
= 1.8V, AGND = OGND = 0, f
SAMPLE
= 250MHz, differential sine-wave clock input drive, 0.1µF capacitor on REFIO,
internal reference, digital output pins differential R
L
= 100 ±1%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
AV
CC
to AGND ..................................................... -0.3V to +2.1V
OV
CC
to OGND .................................................... -0.3V to +2.1V
AV
CC
to OV
CC
...................................................... -0.3V to +2.1V
AGND to OGND ................................................... -0.3V to +0.3V
INP, INN to AGND....................................-0.3V to (AV
CC
+ 0.3V)
All Digital Inputs to AGND........................-0.3V to (AV
CC
+ 0.3V)
REFIO, REFADJ to AGND ........................-0.3V to (AV
CC
+ 0.3V)
All Digital Outputs to OGND ....................-0.3V to (OV
CC
+ 0.3V)
ESD on All Pins (Human Body Model) .............................±2000V
Thermal Resistance
θj
C
...............................................................................0.8°C/W
θj
A
.................................................................................35°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range ............................-60°C to +150°C
Maximum Current into Any Pin............................................50mA
Lead Temperature (soldering,10s) ..................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
UNITS
DC ACCURACY
Resolution 12 Bits
Integral Nonlinearity (Note 2) INL f
IN
= 10MHz, T
A
= +25°C-2
±0.85
+2 LSB
Differential Nonlinearity (Note 2) DNL T
A
= +25° C, no missing codes -1
±0.5
+1 LSB
Transfer Curve Offset V
OS
T
A
= +25° C (Note 2)
-3.5 +3.5
mV
Offset Temperature Drift 40
µV/°C
ANALOG INPUTS (INP, INN)
Full-Scale Input Voltage Range V
FS
T
A
= +25° C (Note 2)
1320 1454 1590
mV
P-P
Full-Scale Range Temperature
Drift
130
ppm/°C
Common-Mode Input Range V
CM
Internally self-biased 1.365 ±0.15 V
Input Capacitance C
IN
2.5 pF
Differential Input Resistance R
IN
3.0 4.2 6.3 k
Full-Power Analog Bandwidth FPBW
700
MHz
REFERENCE (REFIO, REFADJ)
Reference Output Voltage V
REFIO
T
A
= +25° C, REFADJ = AGND
1.18 1.23 1.30
V
Reference Temperature Drift 90
ppm/°C
REFADJ Input High Voltage
V
REFADJ
Used to disable the internal reference AV
CC
- 0.3 V
SAMPLING CHARACTERISTICS
Maximum Sampling Rate f
SAMPLE
250
MHz
Minimum Sampling Rate f
SAMPLE
20
MHz
Clock Duty Cycle Set by clock-management circuit 40 to 60 %
Aperture Delay t
AD
Figures 4, 11
620
ps
Aperture Jitter t
AJ
Figure 11 0.2
ps
RMS
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