MAX1245 Maxim, MAX1245 Datasheet - Page 6

• Manufacturer Part Number: MAX1245
• Description: +2.375V / Low-Power / 8-Channel / Serial 12-Bit ADC
• Manufacturer: Maxim

+2.375V, Low-Power, 8-Channel,
Serial 12-Bit ADC
(V
6
____________________________Typical Operating Characteristics (continued)
DD
-0.05
-0.10
-0.15
-0.20
-0.25
_______________________________________________________________________________________
0.25
0.20
0.15
0.10
0.05
= 2.5V, VREF = 2.048V, f
0
0
1000
100
0.1
10
1
CONVERSIONS PER CHANNEL PER SECOND (Hz)
0.1
V
CODE = 101010100000
R
INTEGRAL NONLINEARITY
DD
L
8 CHANNELS
AVERAGE SUPPLY CURRENT
=
1
= V REF = 2.5V
vs. CONVERSION RATE
CLK
10
DIGITAL CODE
= 1.5MHz, C
2048
100
1 CHANNEL
1k
LOAD
10k
100k
= 20pF, T
4096
A
= +25°C, unless otherwise noted.)
-120
-100
-20
-40
-60
-80
20
0
0
11.0
12.0
11.5
10.5
10.0
1
10
EFFECTIVE NUMBER OF BITS
vs. INPUT FREQUENCY
INPUT FREQUENCY (kHz)
FREQUENCY (kHz)
20
10
FFT PLOT
30
100
f
f
TONE
SAMPLE
40
= 10ksps
= 100ksps
50