MAX1220_12 Datasheet, PDF (10/43 Pages) Maxim Integrated Products – 12-Bit, Multichannel ADCs/DACs with FIFO,Temperature Sensing, and GPIO Ports

12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
Typical Operating Characteristics (continued)
(V_AVDD = V_DVDD = 3V (MAX1257), external V_REF = 2.5V (MAX1257), V_AVDD = V_DVDD = 5V (MAX1220/MAX1258), external V_REF =
4.096V (MAX1220/MAX1258), f_CLK = 3.6MHz (50% duty cycle), f_SAMPLE = 225ksps, C_LOAD = 50pF, 0.1µF capacitor at REF,
T_A = +25°C, unless otherwise noted.)
ADC OFFSET ERROR
ADC GAIN ERROR
ADC GAIN ERROR
vs. TEMPERATURE
vs. ANALOG SUPPLY VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
2
1.0
1.0
MAX1220/MAX1258
1
0.5
0.5
0
MAX1257
0
0
-1
-0.5
-0.5
-2
-40
-15
10
35
60
85
TEMPERATURE (°C)
ADC GAIN ERROR
vs. TEMPERATURE
2
1
MAX1220/MAX1258
0
-1
MAX1257
-2
-40
-15
10
35
60
85
TEMPERATURE (°C)
ANALOG SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
2.04
2.02
2.00
1.98
1.96
1.94
1.92
MAX1220/MAX1258
1.90
4.750 4.875 5.000
5.125
SUPPLY VOLTAGE (V)
5.250
MAX1220/MAX1258
-1.0
4.750
4.875
5.000
5.125
SUPPLY VOLTAGE (V)
5.250
ADC EXTERNAL REFERENCE
INPUT CURRENT vs. SAMPLING RATE
60
50
40
MAX1220/MAX1258
30
20
10
0
0
MAX1257
50 100 150 200 250 300
SAMPLING RATE (ksps)
ANALOG SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
2.04
2.02
2.00
1.98
1.96
1.94
1.92
MAX1257
1.90
2.7
3.0
3.3
3.6
SUPPLY VOLTAGE (V)
MAX1257
-1.0
2.7
3.0
3.3
3.6
SUPPLY VOLTAGE (V)
ANALOG SUPPLY CURRENT
vs. SAMPLING RATE
3.0
2.5
MAX1220/MAX1258
2.0
1.5
1.0
0.5
0
0
MAX1257
50 100 150 200 250 300
SAMPLING RATE (ksps)
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
2.02
2.00
MAX1220/MAX1258
1.98
1.96
1.94
1.92
MAX1257
1.90
1.88
-40 -15
10
35
60
85
TEMPERATURE (°C)
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