
MAX1091/MAX1093
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
_______________________________________________________________________________________
7
2.48
2.49
2.51
2.50
2.52
2.53
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1091/93
toc11
TEMPERATURE (
°C)
V
REF
(V)
-40
10
-15
35
60
85
1.0
0.5
0
-0.5
-1.0
2.7
3.3
3.0
3.6
OFFSET ERROR
vs. SUPPLY VOLTAGE
MAX1091/93
toc12
VDD (V)
OFFSET
ERROR
(LSB)
1.0
0.5
0
-0.5
-1.0
-40
10
-15
35
60
85
OFFSET ERROR
vs. TEMPERATURE
MAX1091/93
toc13
TEMPERATURE (
°C)
OFFSET
ERROR
(LSB)
-0.750
-0.250
-0.500
0
0.250
2.7
3.3
3.0
3.6
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1091/93
toc14
VDD (V)
GAIN
ERROR
(LSB)
-0.500
-0.375
-0.125
-0.250
0
0.125
GAIN ERROR vs. TEMPERATURE
MAX1091/93
toc15
TEMPERATURE (
°C)
GAIN
ERROR
(LSB)
-40
10
-15
35
60
85
50
150
100
200
250
2.7
3.3
3.0
3.6
LOGIC SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1091/93
toc16
VDD (V)
I LOGIC
(
A)
50
100
150
200
250
LOGIC SUPPLY CURRENT
vs. TEMPERATURE
MAX1091/93
toc17
TEMPERATURE (
°C)
I LOGIC
(
A)
-40
10
35
-15
60
85
Typical Operating Characteristics (continued)
(VDD = VLOGIC = +3V, VREF = +2.500V, fCLK = 4.8MHz, CL = 20pF, TA = +25°C, unless otherwise noted.)
2.48
2.49
2.51
2.50
2.52
2.53
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX1091/93
toc10
VDD (V)
V
REF
(V)
2.7
3.3
3.0
3.6
-140
-120
-100
-80
-60
-40
-20
0
20
0
400
200
600
800
1000
1200
FFT PLOT
MAX1091/93
toc18
FREQUENCY (kHz)
AMPLITUDE
(dB)
VDD = 3V
fIN = 50kHz
fSAMPLE = 250ksps