Datasheet

-20
25
30
35
40
45
50
55
60
-
-
-
-
-
-
-
-
FrequencyofInputCommon-ModeSignal(MHz)
0 300
CMRR(dB)
10050 150 200 250
InputFrequency=70MHz
50mV SignalSuperimposed
onInputCommon-ModeVoltage
(0.95V)
PP
0
20
40
60
80
100
120
140
-
-
-
-
-
-
-
Amplitude(dB)
0 25 50
125
Frequency(MHz)
75 100
f =70MHz
f =10MHz,100mV
SFDR=81dBc
Amplitude(f )= 1dBFS
IN
CM PP
IN
CM
IN CM
IN CM
-
-
-
- -
Amplitude(f )= 74dBFS
Amplitude(f +f )= 87dBFS
Amplitude(f f )= 86dBFS
f =70MHz
IN
f +f =80MHz
IN CM
f f =60MHz
IN CM
-
f =10MHz
CM
-20
25
30
35
40
45
50
55
-
-
-
-
-
-
-
FrequencyofSignalonAVDD(MHz)
0 100
PSRR(dB)
2010 30 40 50 60 70 80 90
PSRR(dB)onAVDDSupply
InputFrequency=10MHz
50mV SignalAppliedonAVDD
PP
0
20
40
60
80
100
120
140
-
-
-
-
-
-
-
Amplitude(dB)
0 5 10
50
Frequency(MHz)
15 20
30 4025 35 45
f =10MHz
f =1MHz
Amplitude(f )= 1dBFS
IN
PSRR
IN
PSRR
IN PSRR
IN PSRR
-
-
-
- -
Amplitude(f )= 81dBFS
Amplitude(f +f )= 67.7dBFS
Amplitude(f f )= 68.8dBFS
f
IN
f +f
IN PSRR
f f
IN PSRR
-
f
PSRR
200
180
160
140
120
100
80
60
40
20
0
SamplingFrequency(MSPS)
0 250
Power(mW)
10050 150 200 22525 75 125 175
AVDDPower(mW)
DRVDDPower
200mV LVDS
DRVDD
LVDS
Power
350mV
70
60
50
40
30
20
10
0
SamplingFrequency(MSPS)
0 250
DRVDDCurrent(mA)
25 50 75 100 125 150 175 225200
CMOS,6pFLoadCapacitor
LVDS,350mVSwing
CMOS,8pFLoadCapacitor
LVDS,200mVSwing
ADS4126 , ADS4129
ADS4146 , ADS4149
www.ti.com SBAS483G – NOVEMBER 2009–REVISED JANUARY 2011
TYPICAL CHARACTERISTICS: COMMON
At +25°C, AVDD = 1.8V, DRVDD = 1.8V, maximum rated sampling frequency, sine wave input clock, 1.5V
PP
differential clock
amplitude, 50% clock duty cycle, –1dBFS differential analog input, 1dB gain, low-latency mode, DDR LVDS output interface,
and 32k-point FFT, unless otherwise noted. Note that after reset, the device is in 0dB gain mode.
CMRR ACROSS FREQUENCY CMRR SPECTRUM
Figure 101. Figure 102.
PSRR ACROSS FREQUENCY ZOOMED VIEW OF SPECTRUM WITH PSRR SIGNAL
Figure 103. Figure 104.
POWER ACROSS SAMPLING FREQUENCY DRVDD CURRENT ACROSS SAMPLING FREQUENCY
Figure 105. Figure 106.
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