MAX1020 Datasheet, PDF (13/47 Pages) Maxim Integrated Products – 10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
Typical Operating Characteristics (continued)
(AV_DD = DV_DD = 3V (MAX1021/MAX1023/MAX1057), external V_REF = 2.5V (MAX1021/MAX1023/MAX1057), AV_DD = DV_DD = 5V
(MAX1020/MAX1022/MAX1058), external V_REF = 4.096V (MAX1020/MAX1022/MAX1058), f_CLK = 4.8MHz (50% duty cycle), f_SAMPLE
= 300ksps, C_LOAD = 50pF, 0.1µF capacitor at REF, T_A = +25°C, unless otherwise noted.)
ADC REFERENCE SUPPLY CURRENT
vs. TEMPERATURE
27.00
0
26.75
-20
26.50
-40
26.25
-60
26.00
-80
ADC FFT PLOT
0
f_SAMPLE = 32.768kHz
f_{ANALOG_)N} = 10.080kHz
-20
f_CLK = 5.24288MHz
SINAD = 61.21dBc
-40
SNR = 61.21dBc
THD = 73.32dBc
-60
SFDR = 81.25dBc
-80
ADC IMD PLOT
f_CLK = 5.24288MHz
f_IN1 = 9.0kHz
f_IN2 = 11.0kHz
A_IN = -6dBFS
IMD = 78.0dBc
25.75
-100
-100
25.50
-120
-120
25.25
25.00
-40
MAX1021/MAX1023/MAX1057
-15 10
35
60
85
TEMPERATURE (°C)
-140
-160
0
50
100
150
200
ANALOG INPUT FREQUENCY (kHz)
-140
-160
0
50
100
150
200
ANALOG INPUT FREQUENCY (kHz)
0
-20
-40
-60
-80
-100
-120
-140
-160
0
ADC CROSSTALK PLOT
f_CLK = 5.24288MHz
f_IN1 = 10.080kHz
f_IN2 = 8.0801kHz
SNR = 61.11dBc
THD = 73.32dBc
ENOB = 9.86 BITS
SFDR = 86.34dBc
50
100
150
200
ANALOG INPUT FREQUENCY (kHz)
DAC OUTPUT LOAD REGULATION
vs. OUTPUT CURRENT
2.08
2.07
2.06
2.05
2.04
2.03 SINKING
2.02
SOURCING
2.01 DAC OUTPUT = MIDSCALE
MAX1020/MAX1022/MAX1058
2.00
-30
0
30
60
90
OUTPUT CURRENT (mA)
DAC OUTPUT LOAD REGULATION
vs. OUTPUT CURRENT
1.29
1.28
1.27
1.26
1.25
1.24
SINKING
1.23
SOURCING
1.22 DAC OUTPUT = MIDSCALE
MAX1021/MAX1023/MAX1057
1.21
-30 -20 -10 0 10 20 30
OUTPUT CURRENT (mA)
GPIO OUTPUT VOLTAGE
vs. SOURCE CURRENT
5
MAX1020/MAX1022/MAX1058
4
GPIO OUTPUT VOLTAGE
GPIO OUTPUT VOLTAGE
vs. SOURCE CURRENT
vs. SINK CURRENT
3.0
1500
MAX1021/MAX1023/MAX1057
GPIOB0–B3, C0–C3
2.5
GPIOA0–A3 OUTPUTS
1200
OUTPUTS
2.0
3
GPIOA0–A3 OUTPUTS
1.5
2
1.0
GPIOB0–B3,
1
C0–C3 OUTPUTS
0.5
900
GPIOB0–B3, C0–C3
OUTPUTS
600
300
GPIOA0–A3 OUTPUTS
0
0
20
40
60
80 100
SOURCE CURRENT (mA)
0
0
20
40
60
80 100
SOURCE CURRENT (mA)
MAX1020/MAX1022/MAX1058
0
0
20
40
60
80 100
SINK CURRENT (mA)
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