Rainbow Electronics MAX1068 - Manual (Page 7)

MAX1067/MAX1068
Multichannel, 14-Bit, 200ksps Analog-to-Digital
Converters
_______________________________________________________________________________________ 7
-1.0
-0.6
-0.4
-0.8
0.2
0
0.4
-0.2
0.6
0.8
1.0
0 8192 4096 12,288 16,384
INL vs. CODE
MAX1067/68 toc01
CODE
INL (LSB)
-1.0
-0.6
-0.4
-0.8
0.2
0
0.4
-0.2
0.6
0.8
1.0
0 8192 4096 12,288 16,384
DNL vs. CODE
MAX1067/68 toc02
CODE
DNL (LSB)
-160
-120
-100
-140
-40
-60
-20
-80
0
20
0 60 80 20 40 100
FFT AT f AIN = 1kHz
MAX1067/68 toc03
FREQUENCY (kHz)
AMPLITUDE (dB)
SINAD vs. FREQUENCY
MAX1067/68 toc04
FREQUENCY (kHz)
SINAD (dB)
10 1
10
20
30
40
50
60
70
80
90
0
0.1 100
f SAMPLE = 200kbps
SFDR vs. FREQUENCY
MAX1067/68 toc05
FREQUENCY (kHz)
SFDR (dB)
10 1
20
40
60
80
100
120
0
0.1 100
f SAMPLE = 200ksps
THD vs. FREQUENCY
MAX1067/68 toc06
FREQUENCY (kHz)
THD (dB)
10 1
-100
-80
-60
-40
-20
0
-120
0.1 100
f SAMPLE = 200kbps
SUPPLY CURRENT vs. CONVERSION RATE
(EXTERNAL CLOCK)
MAX1067/68 toc07
CONVERSION RATE (ksps)
SUPPLY CURRENT (mA)
180 160 140 120 100 80 60 40 20
0
0.5
1.0
1.5
2.0
2.5
3.0
-0.5
0 200
I AVDD , INT REF
I AVDD , EXT REF
DV DD = AV DD = +5V
D OUT = ALL ZEROS
EXTERNAL CLOCK
SPI MODE
I DVDD
ANALOG SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
(INTERNAL REFERENCE)
MAX1067/68 toc08
AV
DD
(V)
I AVDD
(mA)
5.15 5.05 4.95 4.85
2.75
2.80
2.85
2.90
2.95
2.70
4.75 5.25
DV DD = +5V
f S = 200ksps
T A = 0 °C
T A = -40 °C
T A = +85 °C
T A = +70 °C
T A = +25 °C
ANALOG SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
(EXTERNAL REFERENCE)
MAX1067/68 toc09
AV
DD
(V)
I AVDD
(mA)
5.15 5.05 4.95 4.85
1.80
1.85
1.90
1.95
2.00
1.75
4.75 5.25
T A = 0 °C
T A = -40 °C
T A = +85 °C
T A = +70 °C
T A = +25 °C
DV DD = +5V
f S = 200ksps
Typical Operating Characteristics
(AV DD = DV DD = +5V, f SCLK = 4.8MHz, C DOUT = 30pF, external V REF = +4.096V, T A = +25°C, unless otherwise noted.)