Rainbow Electronics MAXQ3120 - Manual (Page 5)

MAXQ3120
High-Precision ADC
Mixed-Signal Microcontroller
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DIGITAL SUPPLY CURRENT
vs. CLOCK FREQUENCY
MAXQ3120 toc01
f HFXIN (MHz)
I DD1
(mA)
7 6 5 4 3
10
15
20
25
5
2 8
D VDD = +3.6V
T A = +85 °C
T A = -40 °C, +25°C
PORT PIN HIGH OUTPUT VOLTAGE
vs. SOURCE CURRENT
MAXQ3120 toc02
I OH (mA)
V
OH
(V)
8 6 4 2
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
1.8
0 10
D VDD = 2.8V
T A = +85 °C
T A = +25 °C
T A = -40 °C
PORT PIN LOW-OUTPUT VOLTAGE
vs. SINK CURRENT
MAXQ3120 toc03
I OL (mA)
V
OL
(V)
8 6 4 2
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
0 10
D VDD = 2.8V
T A = +85 °C
T A = +25 °C
T A = -40 °C
REFERENCE VOLTAGE OUTPUT
vs. LOAD CURRENT
MAXQ3120 toc04
I REF ( µA)
V
REF
(V)
50 0 -50
1.25
1.26
1.27
1.28
1.29
1.24
-100 100
A VDD = 3.3V
T A = +25 °C
T A = +85 °C
T A = -40 °C
SIGNAL-TO-NOISE RATIO
vs. INPUT FREQUENCY
MAXQ3120 toc05
INPUT FREQUENCY (kHz)
SNR (dB)
9 8 7 6 5 4 3 2 1
50
55
60
45
0 10
V REF = +1.25V
A VDD = 3.3V
T A = +25 °C, +85°C
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)