Rainbow Electronics MAX1143 - Manual (Page 7)

MAX1142/MAX1143
14-Bit ADC, 200ksps, +5V Single-Supply
with Reference
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0
20
10
30
40
60
50
90
80
70
100
110
120
0.1 1 10 100
SFDR PLOT
MAX1142/3 toc10
FREQUENCY (kHz)
AMPLITUDE (dB)
f SAMPLE = 200kHz
MAX1142/3 toc11
0
-20
-10
-30
-40
-60
-50
-90
-80
-70
-100
-110
0.1 1 10 100
THD PLOT
FREQUENCY (kHz)
AMPLITUDE (dB)
f SAMPLE = 200kHz
Typical Operating Characteristics (continued)
(MAX1142/MAX1143, AV
DD
= DV
DD
= +5V , f
SCLK
= 4.8MHz, external clock (50% duty cycle), 24-clocks/conversion (200ksps), bipo-
lar input, external REF = +4.096V, 0.22µF bypassing on REFADJ, 2.2µF on REF, 1µF on CREF, T A = 25°C, unless otherwise noted.)
1.010
1.005
1
0.995
0.990
-40 40 0 60 -20 20 80
NORMALIZED REF VOLTAGE
vs. TEMPERATURE
MAX1142/3 toc07
TEMPERATURE ( ° C)
NORMALIZED REF VOLTAGE
-120
-110
-80
-40
-60
-20
0
0 18 9 27 36 45 54 63 72 81 90 99
FFT PLOT
MAX1142/3 toc08
FREQUENCY (kHz)
AMPLITUDE (dB)
f SAMPLE = 200kHz
f IN = 5kHz
MAX1142/3 toc09
0
20
10
30
40
60
50
90
80
70
100
0.1 1 10 100
SINAD PLOT
FREQUENCY (kHz)
AMPLITUDE (dB)
f SAMPLE = 200kHz