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MAX1258 Datasheet(PDF) 13 Page - Maxim Integrated Products

Part # MAX1258
Description  12-Bit, Multichannel ADCs/DACs with FIFO,Temperature Sensing, and GPIO Ports
PDF  43 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1258 Datasheet(HTML) 13 Page - Maxim Integrated Products

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12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
______________________________________________________________________________________
13
ADC FFT PLOT
ANALOG INPUT FREQUENCY (kHz)
150
100
50
-140
-120
-100
-80
-60
-40
-20
0
-160
0
200
fSAMPLE = 32.768kHz
fANALOG_N = 10.080kHz
fCLK = 5.24288MHz
SINAD = 71.27dBc
SNR = 71.45dBc
THD = 85.32dBc
SFDR = 87.25dBc
ADC IMD PLOT
ANALOG INPUT FREQUENCY (kHz)
150
100
50
-140
-120
-100
-80
-60
-40
-20
0
-160
0
200
fCLK = 5.24288MHz
fIN1 = 9.0kHz
fIN2 = 11.0kHz
AIN = -6dBFS
IMD = 82.99dBc
ADC CROSSTALK PLOT
ANALOG INPUT FREQUENCY (kHz)
150
100
50
-140
-120
-100
-80
-60
-40
-20
0
-160
0200
fCLK = 5.24288MHz
fIN1 = 10.080kHz
fIN2 = 8.0801kHz
SNR = 72.00dBc
THD = 85.24dBc
ENOB = 11.65 BITS
DAC OUTPUT LOAD REGULATION
vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
60
30
0
2.01
2.02
2.03
2.04
2.05
2.06
2.07
2.08
2.00
-30
90
DAC OUTPUT = MIDSCALE
MAX1220/MAX1258
SINKING
SOURCING
DAC OUTPUT LOAD REGULATION
vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
20
10
0
-20
-10
1.22
1.23
1.24
1.25
1.26
1.27
1.28
1.29
1.21
-30
30
DAC OUTPUT = MIDSCALE
MAX1257
SINKING
SOURCING
GPIO OUTPUT VOLTAGE
vs. SOURCE CURRENT
SOURCE CURRENT (mA)
80
60
40
20
1
2
3
4
5
0
0100
MAX1220/MAX1258
GPIOA0–A3 OUTPUTS
GPIOB0–B3,
C0–C3 OUTPUTS
GPIO OUTPUT VOLTAGE
vs. SOURCE CURRENT
SOURCE CURRENT (mA)
80
60
40
20
0.5
1.0
1.5
2.0
2.5
3.0
0
0
100
MAX1257
GPIOA0–A3 OUTPUTS
GPIOB0–B3, C0–C3
OUTPUTS
GPIO OUTPUT VOLTAGE
vs. SINK CURRENT
SINK CURRENT (mA)
80
60
40
20
300
600
900
1200
1500
0
0
100
MAX1220/MAX1258
GPIOA0–A3 OUTPUTS
GPIOB0–B3, C0–C3
OUTPUTS
GPIO OUTPUT VOLTAGE
vs. SINK CURRENT
SINK CURRENT (mA)
40
50
30
20
10
300
600
900
1200
1500
0
060
MAX1257
GPIOA0–A3 OUTPUTS
GPIOB0–B3, C0–C3
OUTPUTS
Typical Operating Characteristics (continued)
(VAVDD = VDVDD = 3V (MAX1257), external VREF = 2.5V (MAX1257), VAVDD = VDVDD = 5V (MAX1220/MAX1258), external VREF =
4.096V (MAX1220/MAX1258), fCLK = 3.6MHz (50% duty cycle), fSAMPLE = 225ksps, CLOAD = 50pF, 0.1µF capacitor at REF,
TA = +25°C, unless otherwise noted.)



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