MAX1246 Maxim, MAX1246 Datasheet - Page 6

• Manufacturer Part Number: MAX1246
• Description: +2.7V / Low-Power / 4-Channel / Serial 12-Bit ADCs in QSOP-16
• Manufacturer: Maxim

+2.7V, Low-Power, 4-Channel,
Serial 12-Bit ADCs in QSOP-16
(V
6
____________________________Typical Operating Characteristics (continued)
DD
_______________________________________________________________________________________
0.50
2.00
1.75
1.50
1.00
0.75
1.25
1.3
1.2
1.1
1.0
0.9
0.8
= 3.0V, VREF = 2.500V, f
2.25
-60
SUPPLY CURRENT vs. TEMPERATURE
R
CODE = 101010100000
R
CODE = 101010100000
MAX1246
MAX1247
LOAD
L
=
2.75
MAX1247
=
-20
vs. SUPPLY VOLTAGE
-100
-120
-20
-40
-60
-80
SUPPLY CURRENT
20
SUPPLY VOLTAGE (V)
3.25
0
TEMPERATURE (°C)
0
20
3.75
10
60
4.25
20
C
C
MAX1246
LOAD
LOAD
SCLK
FREQUENCY (kHz)
FFT PLOT
100
30
= 50pF
= 20pF
4.75
= 2.0MHz, C
40
5.25
140
V
f
f
IN
SAMPLE
DD
50
= 10k
= 2.7V
= 133k
60
LOAD
4.0
3.5
3.0
2.5
2.0
1.0
0.5
1.5
2.0
1.6
1.2
0.8
0.4
0
2.25
0
70
-60
= 20pF, T
SHUTDOWN SUPPLY CURRENT
2.75
-20
vs. SUPPLY VOLTAGE
SHUTDOWN CURRENT
vs. TEMPERATURE
3.25
TEMPERATURE (°C)
A
20
= +25°C, unless otherwise noted.)
V
3.75
DD
FULL POWER-DOWN
(V)
60
4.25
100
4.75
12.0
11.8
11.6
11.4
11.2
11.0
5.25
140
1
V
DD
EFFECTIVE NUMBER OF BITS
= 2.7V
2.5020
2.5015
2.5010
2.4995
2.4990
2.5005
2.5000
2.501
2.500
2.499
2.498
2.497
2.496
2.495
2.494
2.25
vs. FREQUENCY
-60
FREQUENCY (kHz)
INTERNAL REFERENCE VOLTAGE
INTERNAL REFERENCE VOLTAGE
2.75
10
-20
vs. SUPPLY VOLTAGE
vs. TEMPERATURE
3.25
TEMPERATURE (°C)
MAX1246
20
V
V
DD
3.75
DD
= 2.7V
(V)
60
4.25
100
V
DD
100
4.75
= 3.6V
5.25
140