Typical operating characteristics – Rainbow Electronics MAXQ3120 User Manual
Page 5
MAXQ3120
High-Precision ADC
Mixed-Signal Microcontroller
_____________________________________________________________________
5
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.)