MAX1167/MAX1168
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
_______________________________________________________________________________________
9
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.)
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1167/68 toc17
AV
DD
(V)
OFFSET ERROR (μV)
5.154.85 5.054.95
200
100
0
-100
-200
-300
-400
4.75 5.25
V
REF
= +4.096V
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1167/68 toc18
AV
DD
(V)
GAIN ERROR (%FSR)
5.154.85 5.054.95
0.05
0.04
0.03
0.02
0.01
0
-0.01
-0.02
4.75 5.25
V
REF
= +4.096V
OFFSET ERROR vs. TEMPERATURE
MAX1167/68 toc19
TEMPERATURE (
°
C)
OFFSET ERROR (μV)
603510-15
200
150
100
50
0
-50
-100
-150
-40 85
V
REF
= +4.096V
GAIN ERROR vs. TEMPERATURE
MAX1167/68 toc20
TEMPERATURE (
°
C)
GAIN ERROR (%FSR)
603510-15
0
-0.001
-0.002
-0.003
-0.004
-0.005
-40 85
V
REF
= +4.096V
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY
MAX1167/68 toc21
FREQUENCY (kHz)
ISOLATION (dB)
80604020
0
-20
-40
-60
-80
-100
-120
0 100
INTERNAL +4.096V REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1167/68 toc22
AV
DD
(V)
V
REF
(V)
5.155.054.954.85
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
MAX1167/68 toc23
V
REF
(V)
REF
μ
5.04.52.5 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
MAX1167/68 toc24
I
REF
(mA)
V
REF
(V)
12106 842
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
014
f
SCLK
= 0
INTERNAL REFERENCE MODE
LOAD APPLIED TO REF
C
REF
= 1μF
INTERNAL CLOCK CONVERSION TIME
(8th RISING SCLK TO FALLING EOC)
MAX1167/68 toc25
NUMBER OF SCAN-MODE CONVERSIONS
t
CONV
(ms)
8765432
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
