MAX1068 Maxim Integrated Products, MAX1068 Datasheet - Page 9

• Manufacturer Part Number: MAX1068
• Description: (MAX1067 / MAX1068) 200ksps Analog-to-Digital Converters
• Manufacturer: Maxim Integrated Products

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