Rainbow Electronics MAX1068 - Manual (Page 9)

OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1067/68 toc17
AV DD (V)
OFFSET ERROR (
µ
V)
5.15 4.85 5.05 4.95
-150
-100
-50
0
50
100
150
200
-200
4.75 5.25
V REF = +4.096V
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1067/68 toc18
AV DD (V)
GAIN ERROR (%FSR)
5.15 4.85 5.05 4.95
-0.025
-0.020
-0.015
-0.010
-0.005
0
0.005
0.010
0.015
0.020
-0.030
4.75 5.25
V REF = +4.096V
MAX1067/MAX1068
Multichannel, 14-Bit, 200ksps Analog-to-Digital
Converters
_______________________________________________________________________________________ 9
OFFSET ERROR vs. TEMPERATURE
MAX1067/68 toc19
TEMPERATURE ( °C)
OFFSET ERROR (
µ
V)
60 35 10 -15
-400
-300
-200
0
-100
100
200
300
400
500
-500
-40 85
V REF = +4.096V
GAIN ERROR vs. TEMPERATURE
MAX1067/68 toc20
TEMPERATURE ( °C)
GAIN ERROR (%FSR)
60 35 10 -15
-0.020
-0.015
-0.010
-0.005
0
0.005
0.010
0.015
-0.025
-40 85
V REF = +4.096V
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY
MAX1067/68 toc21
FREQUENCY (kHz)
ISOLATION (dB)
90 80 60 70 20 30 40 50 10
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0 100
V REF = +4.096V
INTERNAL +4.096V REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1067/68 toc22
AV
DD
(V)
V
REF
(V)
5.15 5.05 4.95 4.85
4.092
4.096
4.100
4.104
4.088
4.75 5.25
DV DD = +5V
T A = 0 °C
T A = -40 °C
T
A
= +85 °C
T A = +25 °C
T A = +70 °C
EXTERNAL REFERENCE INPUT CURRENT
vs. EXTERNAL REFERENCE VOLTAGE
MAX1067/68 toc23
V REF (V)
I REF
(µ
A)
5.0 4.5 2.5 3.0 3.5 4.0
20
40
60
80
100
120
140
160
0
2.0 5.5
V AIN = 0
f SCLK = 4.8MHz
AV DD = DV DD = +5V
199ksps, EXTERNAL CLOCK
87.19ksps, INTERNAL CLOCK
INTERNAL REFERENCE VOLTAGE
vs. REF LOAD
MAX1067/68 toc24
I REF (mA)
V
REF
(V)
12 10 6 8 4 2
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
0 14
f SCLK = 0
INTERNAL REFERENCE MODE
LOAD APPLIED TO REF
C
REF = 1 µF
INTERNAL CLOCK CONVERSION TIME
(8th RISING SCLK TO FALLING EOC)
MAX1067/68 toc25
NUMBER OF SCAN-MODE CONVERSIONS
t CONV
(ms)
8 7 6 5 4 3 2
10
20
30
40
50
60
70
0
1
f SCLK = 4.8MHz
8-BIT DATA-TRANSFER MODE
16-BIT DATA-TRANSFER MODE
6
10
12
17 17
24
22
31
28
39
33
46
38
53
44
60
Typical Operating Characteristics (continued)
(AV DD = DV DD = +5V, f SCLK = 4.8MHz, C DOUT = 30pF, external V REF = +4.096V, T A = +25°C, unless otherwise noted.)