Datasheet

MAX1377/MAX1379/MAX1383
Dual, 12-Bit, 1.25Msps Simultaneous-Sampling
ADCs with Serial Interface
12 ______________________________________________________________________________________
MAX1383 BIPOLAR INL
vs. DIGITAL OUTPUT CODE
MAX1377 toc29
DIGITAL OUTPUT CODE
INL (LSB)
307220481024
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
0 4096
MAX1383 BIPOLAR DNL
vs. DIGITAL OUTPUT CODE
MAX1377 toc30
DIGITAL OUTPUT CODE
DNL (LSB)
307220481024
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
0 4096
MAX1383 UNIPOLAR INL
vs. DIGITAL OUTPUT CODE
MAX1377 toc31
DIGITAL OUTPUT CODE
INL (LSB)
307220481024
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
0 4096
MAX1383 UNIPOLAR DNL
vs. DIGITAL OUTPUT CODE
MAX1377 toc32
DIGITAL OUTPUT CODE
DNL (LSB)
307220481024
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
0 4096
MAX1383 OFFSET ERROR
vs. TEMPERATURE
MAX1377 toc33
TEMPERATURE (°C)
OFFSET ERROR (LSB)
1109580655035205-10-25
2
4
6
8
10
0
-40 125
CHANNEL 2
CHANNEL 1
MAX1383 GAIN ERROR
vs. TEMPERATURE
MAX1377 toc34
GAIN ERROR (LSB)
-2
0
2
4
-4
CHANNEL 1
CHANNEL 2
TEMPERATURE (°C)
1109580655035205-10-25-40 125
MAX1383 FFT PLOT
MAX1377 toc35
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
500375250125
-100
-80
-60
-40
-20
0
-120
0625
f
SAMPLE
= 1.25Msps
f
SCLK
= 20MHz
f
IN
= 100kHz
SINAD = 70.07dB
SNR = 70.15dB
THD = -87.39dB
SFDR = 90.1dB
V
REF
= 2.5V
MAX1383 TOTAL HARMONIC DISTORTION
vs. SOURCE IMPEDANCE
MAX1377 toc36
SOURCE IMPEDANCE (Ω)
TOTAL HARMONIC DISTORTION (dBc)
400300200100
-89.5
-89.0
-88.5
-88.0
-87.5
-87.0
-90.0
0500
f
IN
= 100kHz
f
SAMPLE
= 1.25Msps
MAX1383 AVDD FULL POWER-DOWN
CURRENT vs. TEMPERATURE
MAX1377 toc37
TEMPERATURE (°C)
AVDD FULL POWER-DOWN CURRENT (nA)
1109565 80-10 5 20 35 50-25
200
400
600
800
1000
1200
1400
1600
1800
2000
0
-40 125
Typical Operating Characteristics (continued)
(V
AVDD
= 5V/3V, V
L
= 3V, f
SCLK
= 20MHz, T
A
= +25°C, unless otherwise noted.)