
M
±5V, 600Msps, 8-Bit ADC with On-Chip
2.2GHz Bandwidth Track/Hold Amplifier
_______________________________________________________________________________________
5
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
20% to 80%, C
L
= 3pF
20% to 80%, C
L
= 3pF
20% to 80%, C
L
= 3pF
20% to 80%, C
L
= 3pF
Figure 17
Figure 17
Figure 15
Figure 15
Figure 4
Figure 17
ps
ps
220
180
t
RDREADY
t
FDREADY
DREADY Rise Time
DREADY Fall Time
ps
360
t
FDATA
DATA Fall Time
ps
420
t
RDATA
DATA Rise Time
ps
-50
150
350
t
PD2
DREADY to DATA Propagation
Delay (Note 14)
ns
2.2
t
PD1
CLK to DREADY Propagation
Delay
ps
0
t
HD
Reset Input Data Hold Time
(Note 13)
ps
0
t
SU
Reset Input Data Setup Time
(Note 13)
ps
< 0.5
t
AJ
Aperture Jitter
ps
100
t
AD
Aperture Delay
DIV1, DIV2 modes
DIV4 mode
DIV1, DIV2 modes
DIV4 mode
9.5
Clock
Cycles
8.5
t
PDA
Auxiliary Port Pipeline Delay
Clock
Cycles
7.5
7.5
t
PDP
Primary Port Pipeline Delay
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
A = V
CC
I = V
CC
D = +5.0V, V
EE
= -5.0V, V
CC
O = +3.3V, REFIN connected to REFOUT, f
S
= 600Msps, f
IN
at -1dBFS, T
A
= +25°C,
unless otherwise noted.)
Note 1:
Static linearity parameters are computed from a “best-fit” straight line through the code transition points. The full-scale
range (FSR) is defined as 256
·
slope of the line.
Note 2:
The offset control input is a self-biased voltage divider from the internal +2.5V reference voltage. The nominal open-circuit
voltage is +1.25V. It may be driven from an external potentiometer connected between REFOUT and GNDI.
Note 3:
The clock input’s termination voltage can be operated between -2.0V and GNDI. Observe the absolute maximum ratings on
the CLK+ and CLK- inputs.
Note 4:
Input logic levels are measured with respect to the V
CC
O power-supply voltage.
Note 5:
All PECL digital outputs are loaded with 50
to V
CC
O - 2.0V. Measurements are made with respect to the V
CC
O power-
supply voltage.
Note 6:
The current in the V
CC
O power supply does not include the current in the digital output’s emitter followers, which is a func-
tion of the load resistance and the V
TT
termination voltage.
Note 7:
Common-mode rejection ratio is defined as the ratio of the change in the transfer-curve offset voltage to the change in the
common-mode voltage, expressed in dB.
Note 8:
Measured with the positive supplies tied to the same potential, V
CC
A = V
CC
D = V
CC
I. V
CC
varies from +4.75V to +5.25V.
Note 9:
V
EE
varies from -5.25V to -4.75V.
Note 10:
Power-supply rejection ratio is defined as the ratio of the change in the transfer-curve offset voltage to the change in power
supply voltage, expressed in dB.
Note 11:
Effective number of bits (ENOB) and signal-to-noise plus distortion (SINAD) are computed from a curve fit referenced to the
theoretical full-scale range.
Msps
ns
600
0.75
f
MAX
t
PLW
Maximum Sample Rate
ClockPulseWidthLow
Figure 17
Figure 17
ns
0.75
5
t
PWH
Clock Pulse Width High
TIMING CHARACTERISTICS
Figures 6, 7, 8
Figures 6, 7, 8