MAX1277_09 Datasheet, PDF (6/18 Pages) Maxim Integrated Products – 1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference

1.5Msps, Single-Supply, Low-Power, True-
Differential, 12-Bit ADCs with Internal Reference
Typical Operating Characteristics (continued)
(V_DD = +3V, V_L = V_DD, f_SCLK = 24MHz, f_SAMPLE = 1.5Msps, T_A = -40°C to +85°C, unless otherwise noted. Typical values are mea-
sured at T_A = +25°C.)
DYNAMIC PERFORMANCE
vs. INPUT FREQUENCY (MAX1277)
DYNAMIC PERFORMANCE
vs. INPUT FREQUENCY (MAX1279)
70.0
70.0
69.5
SNR
SNR
69.5
69.0
69.0
SINAD
SINAD
68.5
68.5
68.0
100
200
300
400
500
ANALOG INPUT FREQUENCY (kHz)
68.0
100
200
300
400
500
ANALOG INPUT FREQUENCY (kHz)
THD vs. INPUT FREQUENCY
-80
-84
MAX1277
-88
-92
MAX1279
-96
100
200
300
400
500
ANALOG INPUT FREQUENCY (kHz)
SFDR vs. INPUT FREQUENCY
92
90
88
MAX1279
86
84
MAX1277
82
100
200
300
400
500
ANALOG INPUT FREQUENCY (kHz)
FFT PLOT (MAX1277)
0
f_IN = 500kHz
-20 ^{SINAD = 68.7dB}
SNR = 68.9dB
-40
THD = -83.1dB
SFDR = 85.0dB
-60
-80
-100
-120
-140
0
125 250 375 500 625 750
ANALOG INPUT FREQUENCY (kHz)
FFT PLOT (MAX1279)
0
f_IN = 500kHz
-20 ^{SINAD = 69.0dB}
SNR = 69.1dB
-40
THD = -88.9dB
SFDR = 85.9dB
-60
-80
-100
-120
-140
0
125 250 375 500 625 750
ANALOG INPUT FREQUENCY (kHz)
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