65msps, 12-bit, if sampling adc, Typical operating characteristics (continued) – Rainbow Electronics MAX1211 User Manual
Page 8
65Msps, 12-Bit, IF Sampling ADC
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= 3.3V, OV
DD
= 2.0V, GND = 0, REFIN = REFOUT (internal reference), C
REFOUT
= 0.1µF, C
L
≈ 5pF at digital outputs, differential
input at -0.5dBFS, DCE = high, CLKTYP = high, PD = low, G/T = low, f
CLK
≈ 65MHz (50% duty cycle), C
REFP
= C
REFN
= 0.1µF to GND,
1µF in parallel with 10µF between REFP and REFN, C
COM
= 0.1µF in parallel with 2.2µF to GND, T
A
= +25°C, unless otherwise noted.)
-0.5
-0.3
-0.4
-0.1
-0.2
0.1
0
0.2
0.4
0.3
0.5
0
1024 1536
512
2048 2560 3072 3584 4096
DIFFERENTIAL NONLINEARITY
MAX1211 toc08
DIGITAL OUTPUT CODE
DNL (LSB)
-1.0
-0.6
-0.8
-0.2
-0.4
0.2
0
0.4
0.8
0.6
1.0
0
1024 1536
512
2048 2560 3072 3584 4096
INTEGRAL NONLINEARITY
MAX1211 toc07
DIGITAL OUTPUT CODE
INL (LSB)
TWO-TONE FFT PLOT
(16,384-POINT DATA RECORD)
MAX1211 toc05
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0
f
CLK
= 65.00352Msps
f
IN1
= 68.4988875MHz
f
IN2
= 71.49832MHz
SNR = 63.37dBc
SFDR
TT
= 87.36dBc
IM3 = -88.91dBc
f
IN2
f
IN1
2 x f
IN1
- f
IN2
4
8
12
20
28
16
24
32
A
IN1
= -7.04dBFS
A
IN2
= -6.98dBFS
SINAD = 63.56dBc
IMD = -85.20dBc
TWO-TONE FFT PLOT
(16,384-POINT DATA RECORD)
MAX1211 toc06
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0
f
CLK
= 65.00352Msps
f
IN1
= 172.5029325MHz
f
IN2
= 177.50196MHz
SNR = 61.24dBc
SFDR
TT
= 78.13dBc
IM3 = -81.20dBc
f
IN2
f
IN1
2 x f
IN1
- f
IN2
f
IN2
- f
IN1
f
IN1
+ f
IN2
2 x f
IN1
+ f
IN2
3 x f
IN1
+ f
IN2
4
8
12
20
28
16
24
32
A
IN1
= -7.03dBFS
A
IN2
= -7.02dBFS
SINAD = 61.21dBc
IMD = -78.14dBc