MAX1401EAI+ Maxim Integrated Products, MAX1401EAI+ Datasheet - Page 26

• Manufacturer Part Number: MAX1401EAI+
• Description: IC ADC 18BIT LP 28-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1401EAI+

• Number Of Bits: 18
• Sampling Rate (per Second): 480
• Data Interface: QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 750µW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Number Of Adc Inputs: 5
• Architecture: Delta-Sigma
• Conversion Rate: 4.8 KSPs
• Resolution: 18 bit
• Input Type: Voltage
• Interface Type: Serial
• Voltage Reference: External
• Supply Voltage (max): 3 V
• Maximum Power Dissipation: 21.45 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Input Signal Type: Pseudo-Differential, Differential
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

+3V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
Table 15. Modulator Operating Frequency, Sampling Frequency, and 16-Bit Data
Output Rates
Note: Default condition is in bold print.
Table 16a. Noise vs. Gain and Output Data Rate—Unbuffered Mode, V
f
26
CLKIN
OUTPUT
DATA
RATE
(sps)
1200
1200
2400
2400
4800
300
600
100
120
600
200
240
400
480
X2CLK = 0
DEFAULT
50
60
______________________________________________________________________________________
2.4576
2.4576
2.4576
2.4576
1.024
1.024
1.024
1.024
CLKIN FREQUENCY,
= 2.4576MHz
f
CLKIN
FREQ.
157.2
157.2
314.4
314.4
628.8
104.8
125.7
628.8
-3dB
1258
13.1
15.7
78.6
26.2
31.4
52.4
62.9
(Hz)
(MHz)
X2CLK = 1
4.9152
4.9152
4.9152
4.9152
2.048
2.048
2.048
2.048
5.42
5.91
80.5
5.53
6.06
81.5
5.39
6.27
77.8
5.36
5.88
79.7
441
450
431
441
x1
3.03
3.20
38.6
2.96
3.28
39.9
2.92
3.28
40.1
3.00
3.25
39.6
236
232
232
227
x2
CLK
0
0
0
0
1
1
1
1
FOR VARIOUS PROGRAMMABLE GAINS
1.70
1.90
20.6
1.73
1.90
19.6
1.70
1.89
20.1
1.82
1.94
20.2
112
115
109
111
x4
TYPICAL OUTPUT NOISE (µV
MF1
0
0
1
1
0
0
1
1
1.11
1.25
10.3
54.8
1.13
1.25
10.2
53.4
1.09
1.20
10.0
54.9
1.17
1.28
10.5
55.5
x8
MF0
0
1
0
1
0
1
0
1
1.06
1.13
5.73
29.2
1.06
1.17
5.45
27.8
1.06
1.18
5.53
28.2
1.10
1.26
5.74
29.7
x16
FREQUENCY,
SAMPLING
AIN/REFIN
(kHz)
153.6
307.2
38.4
76.8
128
RMS
16
32
64
f
S
1.05
1.18
3.62
14.5
1.06
1.11
3.49
14.7
1.02
1.14
3.56
14.1
1.06
1.16
3.63
14.6
x32
)
1.05
1.15
2.84
7.61
1.08
1.12
2.72
8.00
1.02
1.17
2.74
8.08
1.10
1.17
3.02
7.73
x64
FREQUENCY,
MODULATOR
153.6
(kHz)
19.2
38.4
76.8
f
16
32
64
8
M
REF
x128
1.04
1.15
2.67
5.13
1.05
1.11
2.59
5.08
1.03
1.11
2.59
4.99
1.11
1.15
2.76
5.43
= 1.25V,
DATA RATES
AVAILABLE
ACCURACY
MF1:MF0 = 0
MF1:MF0 = 1
MF1:MF0 = 2
MF1:MF0 = 3
FS1:FS0 = 0
FS1:FS0 = 1
FS1:FS0 = 2
FS1:FS0 = 3
FS1:FS0 = 0
FS1:FS0 = 1
FS1:FS0 = 2
FS1:FS0 = 3
FS1:FS0 = 0
FS1:FS0 = 1
FS1:FS0 = 2
FS1:FS0 = 3
FS1:FS0 = 0
FS1:FS0 = 1
FS1:FS0 = 2
FS1:FS0 = 3
AT 16-BIT
OUTPUT
160, 200
100, 120
200, 240
400, 480
80, 100
STATUS
20, 25
40, 50
50, 60
(sps)
BIT