MAX1304_11 Datasheet, PDF (8/37 Pages) Maxim Integrated Products – 8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V

8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
Typical Operating Characteristics (continued)
(V_AVDD = +5V, V_DVDD = +3V, V_AGND = V_DGND = 0V, V_REF = V_REFMS = +2.5V (external reference), C_REF = C_REFMS = 0.1µF, C_REF+ =
C_REF- = 0.1µF, C_REF+-to-REF- = 2.2µF || 0.1µF, C_COM = 2.2µF || 0.1µF, C_MSV = 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), f_CLK = 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), f_IN = 500kHz, A_IN = -0.4dBFS. T_A = +25°C,
unless otherwise noted.) (Figures 3 and 4)
SMALL-SIGNAL BANDWIDTH
vs. ANALOG INPUT FREQUENCY
2
A_IN = -20dBFS
0
LARGE-SIGNAL BANDWIDTH
vs. ANALOG INPUT FREQUENCY
2
A_IN = -0.5dBFS
0
-2
-2
-4
-4
-6
-6
-8
-8
-10
-10
-12
0.1
1
10
100
ANALOG INPUT FREQUENCY (MHz)
-12
0.1
1
10
100
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(2048-POINT DATA RECORD)
0
-10
f_TH = 1.04167Msps
f_IN = 500kHz
-20 AIN = -0.05dBFS
-30
SNR = 70.7dB
SINAD = 70.6dB
-40 _{THD = -87.5dBc}
-50 ^{SFDR = 87.1dBc}
-60
-70
-80
-90
-100
-110
0
100 200 300 400 500
FREQUENCY (kHz)
OUTPUT HISTOGRAM (DC INPUT)
6000
5497
5000
4000
3000
2000
1611
1084
1000
0
0
0
2044 2045 2046 2047 2048
DIGITAL OUTPUT CODE
8 _______________________________________________________________________________________