MAX11410 Datasheet, PDF (16/95 Pages) Maxim Integrated Products – 24-Bit Multi-Channel Low-Power

MAX11410
24-Bit Multi-Channel Low-Power
1.9ksps Delta-Sigma ADC with PGA
Typical Operating Characteristics
(V_AVDD = 3.3V, V_REF = 2.5V, Internal clock, T_A = 25°C unless otherwise noted.)
16.8 sps NOISE HISTOGRAM
toc1
250
PGA = 32,
FIR FILTER,
200
INPUT REFERRED,
SHORTED INPUTS,
V_CM = AV_DD/2
150
100
50
0
-1.0
-0.5
0.0
0.5
1.0
INPUT VOLTAGE (µV)
16.8 sps NOISE HISTOGRAM
toc2
250 _{PGA = 128,}
FIR FILTER,
INPUT REFERRED,
200 SHORTED INPUTS,
V_CM = AV_DD/2
150
100
50
0
-0.9
-0.5
0.0
0.5
0.9
INPUT VOLTAGE (µV)
59.8sps NOISE HISTOGRAM
toc3
1800 _{PGA = 32,}
1600 ^{SINC FILTER,}
INPUT REFERRED
1400 ^{SHORTED INPUTS,}
V_CM = AV_DD/2
1200
1000
800
600
400
200
0
-1.0
-0.6
0.0
0.6
1.1
INPUT VOLTAGE (µV)
59.8sps NOISE HISTOGRAM
toc4
2000
PGA = 128,
1800 SINC FILTER,
1600
INPUT-REFERRED
SHORTED INPUTS,
1400 ^VCM ^{= AV}DD^/2
1200
1000
800
600
400
200
0
-1.0
-0.5
0.0
0.5
1.0
INPUT VOLTAGE (µV)
OFFSET VOLTAGE vs. TEMPERATURE
20
toc5
FIR FILTER, 16sps, SINGLE CYCLE,
15
CALIBRATED AT ROOM TEMPERATURE
10
PGA = 1
5
PGA = 32
0
-5
PGA = 128
-10
-15
-50
0
50
100
150
TEMPERATURE (°C)
GAIN ERROR vs. TEMPERATURE
0.06
toc07
FIR FILTER, 16sps, SINGLE CYCLE,
CALIBRATED AT ROOM TEMPERATURE
0.04
0.02
PGA = 1
0
-0.02
PGA = 128
-0.04
PGA = 32
-0.06
-50
0
50
100
150
TEMPERATURE (°C)
0.01
0.0075
GAIN ERROR vs. TEMPERATURE
toc08
FIR FILTER, 16sps, SINGLE CYCLE,
CALIBRATED AT EACH TEMPERATURE
0.005
0.0025
PGA = 128
PGA = 1
0
-0.0025
-0.005
PGA = 32
-0.0075
-0.01
-50
0
50
100
150
TEMPERATURE (°C)
OFFSET VOLTAGE vs. TEMPERATURE
10
toc06
8
6
4
PGA = 128
PGA = 1
2
0
-2
-4
PGA = 32
-6
-8 FIR FILTER, 16sps, SINGLE CYCLE,
-10 ^{CALIBRATED AT EACH TEMPERATURE}
-50
0
50
100
150
TEMPERATURE (°C)
ANALOG ACTIVE SUPPLY CURRENT
vs. TEMPERATURE
toc09
500
PGA = 128
450
PGA = 32
400
PGA = 1
350
300
250
-50
BUFFER MODE
AV_DD = 2.7V
NORMAL MODE
0
50
100
150
TEMPERATURE (°C)
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