MAX1185 Maxim, MAX1185 Datasheet - Page 8

• Manufacturer Part Number: MAX1185
• Description: Dual 10-Bit / 20Msps / +3V / Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs
• Manufacturer: Maxim

Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
(V
unless otherwise noted.)
8
DD
0.25
0.20
0.15
0.10
0.05
-0.1
-0.2
-0.3
-0.4
0.2
0.1
_______________________________________________________________________________________
0
0
= +3V, OV
2.70
-40
ANALOG POWER-DOWN CURRENT vs.
OE = PD = OV
OFFSET ERROR vs. TEMPERATURE
2.85
-15
ANALOG POWER SUPPLY
DD
2.014
2.010
2.006
2.002
1.998
1.994
CHA
DD
3.00
TEMPERATURE (°C)
= +2.5V, V
10
-40
V
CHB
DD
3.15
INTERNAL REFERENCE VOLTAGE vs.
(V)
35
-15
3.30
REFIN
TEMPERATURE (°C)
TEMPERATURE
60
3.45
10
= +2.048V, differential input at -0.5dB FS, f
3.60
85
35
60
Typical Operating Characteristics (continued)
80
74
68
62
56
50
38
37
36
35
34
33
2.70
30
85
ANALOG SUPPLY CURRENT vs.
2.85
SFDR, SNR, THD, SINAD vs.
ANALOG SUPPLY VOLTAGE
40
CLOCK DUTY CTCLE
CLOCK DUTY CYCLE (%)
SFDR
3.00
SNR
50
V
DD
3.15
THD
(V)
f
IN
60
= 7.5343935MHz
3.30
SINAD
CLK
70
3.45
= 20.00057MHz, C
70,000
63,000
56,000
49,000
42,000
35,000
28,000
21,000
14,000
7,000
3.60
80
0
OUTPUT NOISE HISTOGRAM (DC INPUT)
N-2
0
2.0100
2.0080
2.0060
2.0040
2.0020
2.0000
38
36
34
32
30
28
869
N-1
DIGITAL OUTPUT CODE
-40
2.70
L
INTERNAL REFERENCE VOLTAGE vs.
≈ 10pF, T
ANALOG SUPPLY CURRENT vs.
64,515
2.85
-15
N
ANALOG SUPPLY VOLTAGE
TEMPERATURE (°C)
3.00
TEMPERATURE
N+1
A
152
10
= +25°C,
V
DD
3.15
N+2
(V)
0
35
3.30
60
3.45
3.60
85