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MAX1277_09 Datasheet, PDF (7/18 Pages) Maxim Integrated Products – 1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
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1.5Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
Typical Operating Characteristics (continued)
(VDD = +3V, VL = VDD, fSCLK = 24MHz, fSAMPLE = 1.5Msps, TA = -40°C to +85°C, unless otherwise noted. Typical values are mea-
sured at TA = +25°C.)
TOTAL HARMONIC DISTORTION
vs. SOURCE IMPEDANCE
TWO-TONE IMD PLOT (MAX1277)
-50
0
fIN1 = 250.102kHz
-20
fIN2 = 299.966kHz
-60
IMD = -88.4dB
fIN = 500kHz
-70
-40
fIN1
fIN2
-60
-80
-80
fIN = 100kHz
-100
-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 (MAX1279)
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)
VDD/VL FULL POWER-DOWN
SUPPLY CURRENT vs. TEMPERATURE
1.00
0.80
0.60
VL, NO SCLK
VDD, NO SCLK
0.40
VDD, SCLK = 24MHz
0.20
0
-40 -15 10
35
60
85
TEMPERATURE (°C)
VL PARTIAL/FULL POWER-DOWN
SUPPLY CURRENT vs. TEMPERATURE
100
75
VL, = 1.8V, SCLK = 24MHz
VL, = 3V, SCLK = 24MHz
50
25
0
-40 -15 10
35
60
85
TEMPERATURE (°C)
VDD SUPPLY CURRENT
vs. TEMPERATURE
9.0
CONVERSION
7.5
6.0
4.5
3.0
PARTIAL POWER-DOWN
1.5
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
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