MAX11040 Maxim Integrated Products, MAX11040 Datasheet - Page 6

• Manufacturer Part Number: MAX11040
• Description: Sigma-Delta ADC
• Manufacturer: Maxim Integrated Products

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24-Bit, 4-Channel, Simultaneous-Sampling,
Cascadable, Sigma-Delta ADC
(V
C
6
REF3
-0.001
-0.002
-0.003
-0.004
-0.005
AVDD
0.005
0.004
0.003
0.002
0.001
-0.1
-0.2
-0.3
-0.4
-0.5
130
120
110
100
0.1
_______________________________________________________________________________________
90
80
0
0
-2.5
0.1
10
= 1µF, T
INL vs. DIFFERENTIAL INPUT VOLTAGE
= V
DVDD
DIFFERENTIAL INPUT VOLTAGE (V)
-1.5
SIGNAL-TO-NOISE RATIO
vs. OUTPUT DATA RATE
vs. INPUT FREQUENCY
OUTPUT DATA RATE (ksps)
A
INPUT FREQUENCY (Hz)
RMS AMPLITUDE
= +25°C, unless otherwise noted.)
100
= 3.3V, f
1
-0.5
0.5
XIN CLOCK
1000
10
1.5
= 24.576MHz, f
10,000
2.5
100
-0.01
-0.02
-0.03
-0.04
-0.05
-100
-120
-140
0.05
0.04
0.03
0.02
0.01
500
450
400
350
300
250
200
150
100
-20
-40
-60
-80
50
0
0
0
100
0
OUT
FFT vs. FREQUENCY AT FULL SCALE
HISTOGRAM OF RMS AMPLITUDE
1000
60Hz SINE-WAVE INPUT
RMS AMPLITUDE GAIN ERROR
= 16ksps, V
vs. OUTPUT DATA RATE
2000
RMS AMPLITUDE (% FS)
OUTPUT DATA RATE (Hz)
1000
3000
FREQUENCY (Hz)
AT 0.1% FS
4000
REFIO
Typical Operating Characteristics
5000
10,000
6000
= 2.5V (external), C
7000
100,000
8000
0.001
0.01
-100
-120
-140
-160
-180
MAXIMUM EXPECTED ERROR OF CALCULATED
0.1
-40
-60
-80
-1
-2
-3
-4
-5
-6
-7
-8
-9
1
1
0
0.01
RMS AMPLITUDE vs. INPUT AMPLITUDE
FFT vs. FREQUENCY AT 0.1% FULL SCALE
10
0
REFIO
1 MILLION 62.5Hz CYCLES
1000
60Hz SINE-WAVE INPUT
vs. SOURCE RESISTANCE
= C
2000
100
0.1
INPUT AMPLITUDE (% FS)
SOURCE RESISTANCE (Ω)
RMS AMPLITUDE
REF0
FREQUENCY (Hz)
3000
1000
4000
= C
1
5000
REF1
10,000
6000
10
= C
7000
REF2
100,000
8000
100
=