User Manual

MAX1003
Low-Power, 90Msps, Dual 6-Bit ADC
4 _______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(V
CC
= +5V ±5%, V
CCO
= 3.3V ±300mV, f
CLK
= 90Msps, GAIN = open (midgain) MAX1003 evaluation kit, T
A
= +25°C, unless
otherwise noted.)
6.0
5.0
10
100
EFFECTIVE NUMBER OF BITS
vs. ANALOG INPUT FREQUENCY
5.2
MAX1003-01
ANALOG INPUT FREQUENCY (MHz)
EFFECTIVE NUMBER OF BITS
5.4
5.6
5.8
f
CLK
= 90Msps
-1.0
1 10 100
ANALOG INPUT BANDWIDTH
-0.8
MAX1003-02
ANALOG INPUT FREQUENCY (MHz)
MAGNITUDE (dB)
-0.6
-0.2
-0.4
0
5.5
1 10 100
EFFECTIVE NUMBER OF BITS
vs. SAMPLING/CLOCK FREQUENCY
5.6
MAX1003-03
CLOCK FREQUENCY (MHz)
EFFECTIVE NUMBER OF BITS
5.7
5.9
5.8
6.0
f
IN
= 20MHz
-50
1k 100k 1M
OSCILLATOR OPEN-LOOP PHASE NOISE
vs. FREQUENCY OFFSET
-110
-130
-90
-70
MAX1003-04
FREQUENCY OFFSET FROM CARRIER (Hz)
PHASE NOISE (dBc)
10k
0.50
-0.50
0 64
INTEGRAL NONLINEARITY
vs. CODE
-0.25
0.25
MAX1003-06
CODE
INL (LSB)
10 20 30 40 50 60
0
0.50
-0.50
0 64
DIFFERENTIAL NONLINEARITY
vs. CODE
-0.25
0.25
MAX1003-07
CODE
DNL (LSB)
10 20 30 40 50 60
0
-60
-40
-20
0
0 9 18 27 36 45
FFT PLOT
MAX1003-05
FREQUENCY (MHz)
AMPLITUDE (dB)
f
IN
= 19.9512MHz
f
CLK
= 90.000MHz
1024 POINTS
AC COUPLED
SINGLE ENDED
AVERAGED