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ADS1285 Datasheet(PDF) 24 Page - Texas Instruments

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Part # ADS1285
Description  ADS1285 32-Bit, Delta-Sigma ADC for Seismic Applications
PDF  67 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS1285 Datasheet(HTML) 24 Page - Texas Instruments

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Table 7-1. High-Power Mode Noise Performance (VREF = 4.096 V, AVDD1 = 5 V, RS = 0 Ω)
GAIN
MODE
DYNAMIC RANGE (dB)
en, INPUT-REFERRED NOISE (μVRMS)
fDATA
fDATA
250
500
1000
2000
4000
250
500
1000
2000
4000
1
Buffer
135
132
129
126
123
0.31
0.44
0.63
0.89
1.25
1
PGA
137
134
131
128
125
0.25
0.35
0.50
0.70
0.99
2
PGA
136
133
130
127
124
0.14
0.20
0.28
0.39
0.56
4
PGA
134
131
128
125
122
0.09
0.12
0.18
0.25
0.35
8
PGA
130
127
124
121
118
0.07
0.10
0.14
0.20
0.28
16
PGA
126
123
120
117
114
0.06
0.08
0.11
0.16
0.22
32
PGA
120
117
114
111
108
0.06
0.08
0.11
0.16
0.22
64
PGA
114
111
108
105
102
0.06
0.08
0.11
0.16
0.22
Table 7-2. Mid-Power Mode Noise Performance (VREF = 4.096 V, AVDD1 = 5 V, RS = 0 Ω)
GAIN
MODE
DYNAMIC RANGE (dB)
en, INPUT-REFERRED NOISE (μVRMS)
fDATA
fDATA
250
500
1000
2000
4000
250
500
1000
2000
4000
1
Buffer
135
132
129
126
123
0.31
0.44
0.63
0.89
1.25
1
PGA
137
134
131
128
125
0.25
0.35
0.50
0.70
0.99
2
PGA
135
132
129
126
123
0.16
0.22
0.31
0.44
0.63
4
PGA
133
130
127
124
121
0.10
0.14
0.20
0.28
0.39
8
PGA
128
125
122
119
116
0.09
0.12
0.18
0.25
0.35
16
PGA
123
120
117
114
111
0.08
0.11
0.16
0.22
0.31
32
PGA
117
114
111
108
105
0.08
0.11
0.16
0.22
0.31
64
PGA
111
108
105
102
99
0.08
0.11
0.16
0.22
0.31
Table 7-3. Low-Power Mode Noise Performance (VREF = 4.096 V, AVDD1 = 5 V, RS = 0 Ω)
GAIN
MODE
DYNAMIC RANGE (dB)
en, INPUT-REFERRED NOISE (μVRMS)
fDATA
fDATA
125
250
500
1000
2000
125
250
500
1000
2000
1
Buffer
135
132
129
126
123
0.31
0.44
0.63
0.89
1.25
1
PGA
138
135
132
129
126
0.22
0.31
0.44
0.63
0.89
2
PGA
137
134
131
128
125
0.12
0.18
0.25
0.35
0.50
4
PGA
135
132
129
126
123
0.08
0.11
0.16
0.22
0.31
8
PGA
131
128
125
122
119
0.06
0.09
0.12
0.18
0.25
16
PGA
126
123
120
117
114
0.06
0.08
0.11
0.16
0.22
32
PGA
120
117
114
111
108
0.06
0.08
0.11
0.16
0.22
64
PGA
114
111
108
105
102
0.06
0.08
0.11
0.16
0.22
Table 7-4. High-Power Mode Noise Performance (VREF = 2.5 V, AVDD1 = 3.3 V, RS = 0 Ω)
GAIN
MODE
DYNAMIC RANGE (dB)
en, INPUT-REFERRED NOISE (μVRMS)
fDATA
fDATA
250
500
1000
2000
4000
250
500
1000
2000
4000
1
Buffer
135
132
129
126
123
0.31
0.44
0.63
0.89
1.25
1(1)
PGA
128
125
122
119
116
0.35
0.50
0.70
0.99
1.40
2
PGA
133
130
127
124
121
0.20
0.28
0.39
0.56
0.79
4
PGA
132
129
126
123
120
0.11
0.16
0.22
0.31
0.44
8
PGA
129
126
123
120
117
0.08
0.11
0.16
0.22
0.31
16
PGA
125
122
119
116
113
0.06
0.09
0.12
0.18
0.25
32
PGA
119
116
113
110
107
0.06
0.09
0.12
0.17
0.25
64
PGA
113
110
107
104
101
0.06
0.09
0.12
0.17
0.25
ADS1285
SBAS559A – MAY 2022 – REVISED DECEMBER 2022
www.ti.com
24
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Product Folder Links: ADS1285



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