XRD64L43 Datasheet, PDF (15/20 Pages) Exar Corporation – Dual 10-Bit 40MSPS CMOS ADC

Preliminary
XRD64L43
XRD64L43 DIFFERENTIAL NONLINEARITY
ERROR Fc = 40MHz
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
OUTPUT CODE
Figure 8. Differential Non-Linearity, Differential
Input Mode, Fc=40MHz, Fin=1.5kHz, VRHF=2.5V,
V_DD=3V
XRD64L43 INTEGRAL NONLINEARITY
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
OUTPUT CODE
Figure 9. Integral Non-Linearity, Differential
Input Mode, Fc=40MHz, Fin=1.5kHz, VRHF=2.5V,
V_DD=3V
XRD64L43 IMD
Fin1 = 2.51Mhz, Fin2 = 3.4375Mhz
8192-Point FFT, Fclock =40.0MHz, Differential input mode
0.00
-10.00
-20.00
-30.00
-40.00
-50.00
-60.00
-70.00
-80.00
-90.00
-100.00
-110.00
-120.00
Frequency
Figure 10. Intermodulation Distortion,
Fin1=2.51MHz, Fin2=3.4375MHz, 8192-point FFT,
Fc=40MHz, Differential Input Mode
XRD64L43 Crosstalk Fs=40MSPS
Singel-Ended and Differential Modes
Channel 1=1MHz, Channel 2=(1.5MH z-
10.5MH z)
0
-20
-40
-60
-80
-100
Single-Ended Input
Differential Input
1.5
3
4.5
6
7.5
9 10.5
Input Frequency (MHz)
Figure 11. Crosstalk vs Input Frequency,
V_DD=3V, Differential and Single Ended Inputs
Rev. P1.00
15