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)
20481216
-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)
20481216
-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)
481216
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-110
020
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)
481216
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-110
020
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)
481216
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-110
020
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)
481216
-110
-90
-100
-80
-70
-50
-30
-10
-60
-40
-20
0
-120
020
f
IN(IN1)
= 12.40125MHz
f
IN(IN2)
= 13.60125MHz
A
IN1
= -6.5dBFS
A
IN2
= -6.5dBFS
IMD = 87.0dBc
IM3 = 89.3dBc
11001000
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.)
(33 paginas)
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