Typical operating characteristics (continued) – Rainbow Electronics MAX1068 User 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.)