Rainbow Electronics MAX1126 - Manual (Page 7)

MAX1126
Quad, 12-Bit, 40Msps, 1.8V ADC with
Serial LVDS Outputs
_______________________________________________________________________________________ 7
FFT PLOT
(32,768-POINT DATA RECORD)
MAX1126 toc01
FREQUENCY (MHz)
AMPLITUDE (dBFS)
20 4 8 12 16
-110
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-120
0
f CLK = 40.96MHz
f IN = 5.30125MHz
A IN = -0.5dBFS
SNR = 69.88dB
SINAD = 69.85dB
THD = -91.46dBc
SFDR = 93.65dBc
HD2 HD3
FFT PLOT
(32,768-POINT DATA RECORD)
MAX1126 toc02
FREQUENCY (MHz)
AMPLITUDE (dBFS)
20 4 8 12 16
-110
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-120
0
f CLK = 40.96MHz
f IN = 19.00125MHz
A IN = -0.5dBFS
SNR = 69.20dB
SINAD = 69.16dB
THD = -88.74dBc
SFDR = 89.04dBc
HD2
HD3
CROSSTALK
(4096-POINT DATA RECORD)
MAX1126 toc03
FREQUENCY (MHz)
AMPLITUDE (dBFS)
4 8 12 16
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-110
0 20
MEASURED ON CHANNEL 2,
WITH INTERFERING SIGNAL
ON CHANNEL 0
f
CLK = 39.9997651MHz
f IN(IN2) = 5.2831721MHz
f IN(IN0) = 19.3260584MHz
CROSSTALK
(4096-POINT DATA RECORD)
MAX1126 toc04
FREQUENCY (MHz)
AMPLITUDE (dBFS)
4 8 12 16
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-110
0 20
MEASURED ON CHANNEL 2,
WITH INTERFERING SIGNAL
ON CHANNEL 1
f
CLK = 39.9997651MHz
f
IN(IN2)
= 5.2831721MHz
f IN(IN1) = 19.3260584MHz
CROSSTALK
(4096-POINT DATA RECORD)
MAX1126 toc05
FREQUENCY (MHz)
AMPLITUDE (dBFS)
4 8 12 16
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-110
0 20
MEASURED ON CHANNEL 2,
WITH INTERFERING SIGNAL
ON CHANNEL 3
f
CLK = 39.9997651MHz
f IN(IN2) = 5.2831721MHz
f IN(IN3) = 19.3260584MHz
TWO-TONE INTERMODULATION DISTORTION
(32,768-POINT DATA RECORD)
MAX1126 toc06
FREQUENCY (MHz)
AMPLITUDE (dBFS)
4 8 12 16
-110
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-120
0 20
f IN(IN1) = 12.40125MHz
f IN(IN2) = 13.60125MHz
A IN1 = -6.5dBFS
A IN2 = -6.5dBFS
IMD = 87.0dBc
IM3 = 89.3dBc
1 100 1000
GAIN BANDWIDTH PLOT
MAX1126 toc07
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
10
SMALL-SIGNAL
BANDWIDTH
-20dBFS
LIMITED BY
MAX1127EVKIT
INPUT CIRCUITRY
-4
-3
-2
-1
0
1
-5
FULL-POWER
BANDWIDTH
-0.5dBFS
Typical Operating Characteristics
(AV DD = 1.8V, OV DD = 1.8V, CV DD = 1.8V, GND = 0, external V REFIO = 1.24V, INTREF = AV DD , differential input at -0.5dBFS,
f CLK = 40MHz (50% duty cycle), DT = low, C LOAD = 10pF, T A = +25°C, unless otherwise noted.)