Rainbow Electronics MAX1145 - Manual (Page 6)

MAX1144/MAX1145
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(MAX1144/MAX1145, AV DD = DV DD = 3.3V, f SCLK = 3.6MHz, external clock (50% duty cycle), 24 clocks/conversion (150ksps),
bipolar input, REF = 2.048V, 4.7µF on REF, 1µF on CREF, T
A
= +25°C, unless otherwise noted.)
OFFSET VOLTAGE
vs. TEMPERATURE
MAX1144/45 toc04
TEMPERATURE ( °C)
OFFSET ERROR (mV)
80 60 20 40 0 -20
-2.5
-2.0
-1.0
-0.5
0
-40
A: AV DD , DV DD = 3.135V
B: AV DD , DV DD = 3.3V
C: AV DD , DV DD = 3.465V
C
B
A
-1.5
GAIN ERROR
vs. TEMPERATURE
MAX1144/45 toc05
TEMPERATURE ( °C)
GAIN ERROR (% FULL SCALE)
80 60 20 40 0 -20
0.01
0
0.03
0.02
0.04
0.05
0.06
-40
A: AV DD , DV DD = 3.135V
B: AV DD , DV DD = 3.3V
C: AV DD , DV DD = 3.465V
C
B
A
TOTAL SUPPLY CURRENT vs.
CONVERSION RATE (USING SHUTDOWN)
MAX1144/45 toc06
CONVERSION RATE (ksps)
TOTAL SUPPLY CURRENT (mA)
1000 100 10 1
0.01
100
10
1
0.1
0
FFT PLOT
MAX1144/45 toc07
FREQUENCY (kHz)
AMPLITUDE (dB)
60 50 40 30 20 10
-100
-80
-60
-40
-20
0
-120
0 70
f SAMPLE = 150kHz
f
IN
= 5kHz
SINAD PLOT
MAX1144/45 toc08
FREQUENCY (kHz)
AMPLITUDE (dB)
10 1
10
20
30
40
50
60
70
80
90
100
0
0.1 100
f SAMPLE = 150kHz
SFDR PLOT
MAX1144/45 toc09
FREQUENCY (kHz)
AMPLITUDE (dB)
10 1
10
20
30
40
50
60
70
80
90
100
110
120
0
0.1 100
f SAMPLE = 150kHz
THD PLOT
MAX1144/45 toc10
FREQUENCY (kHz)
AMPLITUDE (dB)
10 1
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0.1 100
f SAMPLE = 150kHz
14-Bit ADCs, 150ksps, 3.3V Single Supply