Datasheet

MAX11190 4-Channel, Dual, Simultaneous Sampling,
2.2V to 3.6V, 12-Bit, 3Msps SAR ADC in Tiny
3mm x 3mm TQFN Package
Maxim Integrated │ 9
www.maximintegrated.com
Typical Operating Characteristics (continued)
THD vs. INPUT RESISTANCE
MAX11190 toc08
R
IN
(Ω)
THD (dB)
806040200 100
f
S
= 3Msps
f
IN
= 1.0183MHz
B
A
-95
-90
-85
-80
-75
-70
-100
TOTAL SUPPLY CURRENT
vs. TEMPERATURE
MAX11190 toc10
TEMPERATURE (ºC)
I
VDD
(mA)
1109580655035205-10-25
5.2
5.4
5.6
5.8
6.0
5.0
-40 125
1MHz SINE WAVE INPUT
(16384 POINT FFT PLOT) (A)
MAX11190 toc12a
FREQUENCY (kHz)
AMPLITUDE (dB)
12501000750500250
-100
-80
-60
-40
-20
0
-120
0 1500
f
S
= 3Msps
f
IN
= 1.0183MHz
A
HD3
= -90.6dB
A
HD2
= -86.9dB
REFERENCE CURRENT
vs. SAMPLING RATE
MAX11190 toc09
f
S
(ksps)
I
REF
(µA)
200015001000500
50
100
150
200
0
0 30002500
B
A
SNR vs. REFERENCE VOLTAGE
MAX11190 toc11
V
REF
(V)
SNR (dB)
3.43.23.02.82.62.42.2
71.5
72.0
72.5
73.0
73.5
71.0
2.0 3.6
f
S
= 3Msps
f
IN
= 1.0183MHz
B
A
1MHz SINE WAVE INPUT
(16384 POINT FFT PLOT) (B)
MAX11190 toc12b
FREQUENCY (kHz)
AMPLITUDE (dB)
12501000750500250
-100
-80
-60
-40
-20
0
-120
0 1500
f
S
= 3Msps
f
IN
= 1.0183MHz
A
HD3
= -89.6dB
A
HD2
= -86.3dB