Typical operating characteristics (continued) – Rainbow Electronics MAX1420 User Manual
Page 8
MAX1420
12-Bit, 60Msps, +3.3V, Low-Power ADC
with Internal Reference
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
AVDD
= V
DVDD
= +3.3V, AGND = DGND = 0, V
IN
= ±1.024V, differential input voltage at -0.5dB FS, f
CLK
= 60.006MHz (50% duty
cycle), digital output load C
L
= 10pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
°C.)
80
70
60
50
40
-40
10
-15
35
60
85
MAX1420 toc22
TEMPERATURE (
°C)
I
AVDD
(mA)
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
0
0.03
0.09
0.06
0.12
0.15
2.7
3.0
2.9
3.2
3.3
3.5
3.6
MAX1420 toc26
DV
DD
(V)
I
DVDD
(µ
A)
DIGITAL POWER-DOWN CURRENT
vs. DIGITAL SUPPLY VOLTAGE
-80
-60
-40
-20
0
20
40
60
80
20
40
30
50
60
70
80
MAX1420 toc27
CLOCK FREQUENCY (MHz)
SFDR, SNR, THD, SINAD (dB)
SNR, SINAD, THD, SFDR
vs. CLOCK FREQUENCY
SFDR
SINAD
SNR
THD
f
IN
= 15MHz
2.00
2.02
2.06
2.04
2.08
2.10
-40
10
-15
35
60
85
MAX1420 toc29
TEMPERATURE (
°C)
V
REF
(dB)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
N-6
N-4 N-3
N-5
N-2 N-1 N N+1 N+2 N+3 N+4 N+5 N+6
MAX1420 toc30
DIGITAL OUTPUT NOISE
COUNTS
0
300,000
200,000
100,000
400,000
500,000
600,000
OUTPUT NOISE HISTOGRAM
(DC INPUT)
0
342
14538
2
6113 242 0
115171
153704
53499
339785
387312
502186
0
0.04
0.12
0.08
0.16
0.20
3.10
3.50
MAX1420 toc25
AV
DD
(V)
I
AVDD
(µ
A)
ANALOG POWER-DOWN CURRENT
vs. ANALOG SUPPLY VOLTAGE
3.30
3.20
3.40
2.075
2.063
2.050
2.038
2.025
3.1
3.3
3.2
3.4
3.5
MAX1420 toc28
AV
DD
(V)
V
REF
(V)
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
14
12
10
8
6
2.7
3.2
2.9
3.0
3.3
3.5
3.6
MAX1420 toc23
DV
DD
(V)
I
DVDD
(mA)
DIGITAL SUPPLY CURRENT
vs. DIGITAL SUPPLY VOLTAGE
8
14
-40
10
-15
35
60
85
MAX1420 toc24
TEMPERATURE (
°C)
I
DVDD
(mA)
DIGITAL SUPPLY CURRENT
vs. TEMPERATURE
10
9
12
11
13