MAX1217
1.8V, Dual, 12-Bit, 125Msps ADC for
Broadband Applications
4 _______________________________________________________________________________________
DC ELECTRICAL CHARACTERISTICS (continued)
(AV
CC
= OV
CC
= +1.8V, AGND = OGND = 0, f
SAMPLE
= 125MHz, differential input and differential sine-wave clock signal, 0.1µF
capacitors on REFA and REFB, internal reference, digital output differential R
L
= 100Ω, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CHANNEL CROSSTALK AND CHANNEL MATCHING SPECIFICATIONS
Channel Isolation f
IN
= 200MHz, A
IN
= -1dBFS 90 dB
LVCMOS LOGIC INPUTS (CLKDIV, T/BA, T/BB)
Input High Voltage V
IH
0.8 x
OV
CC
V
Input Low Voltage V
IL
0.2 x
OV
CC
V
Input Capacitance 2pF
LVDS DIGITAL OUTPUTS (DA0P/N–DA11P/N, DB0P/N–DB11P/N, ORAP/N, ORBP/N, DCOP/N)
Differential Output Voltage |V
OD
| 225 490 mV
Output Offset Voltage V
OS
1.125 1.310 V
OUTPUT TIMING CHARACTERISTICS
CLK to Data Propagation Delay t
PDL
Figure 5 (Note 3) 1.7 ns
CLK to DCO Propagation Delay t
CPDL
Figure 5 (Note 3) 5.2 ns
DCO to Data Propagation Delay t
PDL
- t
CPDL
(Note 3) 3.7 4.4 5.2 ns
LVDS Output Rise Time t
RL
20% to 80%, C
L
= 5pF 350 ps
LVDS Output Fall Time t
FL
20% to 80%, C
L
= 5pF 350 ps
Output Data Pipeline Delay t
LATENCY
Figure 5 11
Clock
Cycles
POWER REQUIREMENTS
Analog Supply Voltage Range AV
CC
1.71 1.8 1.89 V
Output Supply Voltage Range OV
CC
1.71 1.8 1.89 V
Analog Supply Current I
AVCC
f
IN
= 10MHz 600 725 mA
Output Supply Current I
OVCC
f
IN
= 10MHz 120 160 mA
Analog Power Dissipation P
DISS
f
IN
= 10MHz 1.3 1.6 W
Power-Supply Rejection Ratio PSRR (Note 5) 1 mV/V
Note 1: Values at T
A
= +25°C to +85°C are guaranteed by production test. Values at T
A
< +25°C are guaranteed by design and
characterization.
Note 2: Static linearity and offset parameters are computed from a best-fit straight line through the code transition points.
The full-scale range (FSR) is defined as 4095 x slope of the line.
Note 3: Parameter guaranteed by design and characterization; T
A
= -40°C to +85°C.
Note 4: ENOB and SINAD are computed from a curve fit.
Note 5: PSRR is measured with the analog and output supplies connected to the same potential.
