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MAX1224 Datasheet, PDF (7/18 Pages) Maxim Integrated Products – 1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs
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1.5Msps, Single-Supply, Low-Power,
True-Differential, 12-Bit ADCs
Typical Operating Characteristics (continued)
(VDD = +3V, VL = VDD, VREF = 2.048V, fSCLK = 24MHz, fSAMPLE = 1.5Msps, TA = TMIN to TMAX, unless otherwise noted. Typical val-
ues are measured at TA = +25°C)
TOTAL HARMONIC DISTORTION
vs. SOURCE IMPEDANCE
-50
-60
fIN = 500kHz
-70
TWO-TONE IMD PLOT (MAX1224)
0
fIN1 = 250.102kHz
-20
fIN2 = 299.966kHz
IMD = -88.4dB
-40
fIN1
fIN2
-60
-80
-80
-100
fIN = 100kHz
-90
-120
-100
10
100
1000
SOURCE IMPEDANCE (Ω)
-140
0
125 250 375 500 625 750
ANALOG INPUT FREQUENCY (kHz)
TWO-TONE IMD PLOT (MAX1225)
0
fIN1 = 250.102kHz
-20
fIN2 = 299.966kHz
IMD = -85.2dB
-40
fIN1
fIN2
-60
-80
-100
-120
-140
0
125 250 375 500 625 750
ANALOG INPUT FREQUENCY (kHz)
VL PARTIAL/FULL POWER-DOWN
SUPPLY CURRENT vs. TEMPERATURE
100
VDD/VL FULL POWER-DOWN
SUPPLY CURRENT vs. TEMPERATURE
1.0
0.8
0.6
VDD, fSCLK = 24MHz
0.4
0.2
VL, NO SCLK
VDD, NO SCLK
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
VDD SUPPLY CURRENT vs. TEMPERATURE
9
75
VL = 3V, fSCLK = 24MHz
50
VL = 1.8V, fSCLK = 24MHz
25
CONVERSION
6
3
PARTIAL POWER-DOWN
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
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