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ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - AD converter (ADC) External TQFN 12
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Typical Operating Characteristics (continued)
(V
DD
= +5V, V
L
= V
DD
, V
REF
= 4.096V, f
SCLK
= 28.8MHz, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
=
+25°C.)
MAX1072/MAX1075
1.8Msps, Single-Supply, Low-Power,
True-Differential, 10-Bit ADCs
6 _______________________________________________________________________________________
FFT PLOT (MAX1075)
MAX1072/75 toc10
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
800600400200
-120
-100
-80
-60
-40
-20
0
-140
0 1000
f
SAMPLE
= 2Msps
f
SCLK
= 32MHz
f
IN
= 100kHz
SINAD = 61.37dB
SNR = 61.37dB
THD = -90.79dB
SFDR = 85.45dB
FFT PLOT (MAX1072)
MAX1072/75 toc11
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
800600400200
-120
-100
-80
-60
-40
-20
0
-140
0 1000
f
SAMPLE
= 2Msps
f
SCLK
= 32MHz
f
IN
= 300kHz
SINAD = 61.43dB
SNR = 61.43dB
THD = -84.38dB
SFDR = 85.43dB
FFT PLOT (MAX1075)
MAX1072/75 toc12
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
800600400200
-120
-100
-80
-60
-40
-20
0
-140
0 1000
f
SAMPLE
= 2Msps
f
SCLK
= 32MHz
f
IN
= 300kHz
SINAD = 61.36dB
SNR = 61.38dB
THD = -84.27dB
SFDR = 84.82dB
FFT PLOT (MAX1072)
MAX1072/75 toc13
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
800600400200
-120
-100
-80
-60
-40
-20
0
-140
0 1000
f
SAMPLE
= 2Msps
f
SCLK
= 32MHz
f
IN
= 500kHz
SINAD = 61.27dB
SNR = 61.28dB
THD = -86.84dB
SFDR = 84.77dB
FFT PLOT (MAX1075)
MAX1072/75 toc14
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
800600400200
-120
-100
-80
-60
-40
-20
0
-140
0 1000
f
SAMPLE
= 2Msps
f
SCLK
= 32MHz
f
IN
= 500kHz
SINAD = 61.34dB
SNR = 61.35dB
THD = -95.5dB
SFDR = 84.35dB
TOTAL HARMONIC DISTORTION
vs. SOURCE IMPEDANCE
MAX1072/75 toc15
SOURCE IMPEDANCE (Ω)
THD (dB)
100
-95
-90
-85
-80
-75
-70
-65
-60
-100
10 1000
f
IN
= 100kHz
f
IN
= 500kHz
TWO-TONE IMD PLOT (MAX1072)
MAX1072/75 toc16
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
800600400200
-120
-100
-80
-60
-40
-20
0
-140
0 1000
f
SCLK
= 32MHz
f
IN1
= 250.039kHz
f
IN2
= 300.059kHz
IMD = -81.9dB
f
IN1
f
IN2
TWO-TONE IMD PLOT (MAX1075)
MAX1072/75 toc17
ANALOG INPUT FREQUENCY (kHz)
AMPLITUDE (dB)
800600400200
-120
-100
-80
-60
-40
-20
0
-140
0 1000
f
SCLK
= 32MHz
f
IN1
= 250.039kHz
f
IN2
= 300.059kHz
IMD = -82.1dB
f
IN1
f
IN2
V
DD
/V
L
FULL POWER-DOWN
SUPPLY CURRENT vs. TEMPERATURE
MAX1072/75 toc18
TEMPERATURE (°C)
V
DD
/V
L
SUPPLY CURRENT (μA)
603510-15
0.2
0.4
0.6
0.8
1.0
0
-40 85
V
DD
, f
SCLK
= 28.8MHz
V
DD
, f
SCLK
= 0
V
L
, f
SCLK
= 0