ADS1118_13 Datasheet, PDF (10/38 Pages) Texas Instruments – Ultra-Small, Low-Power, SPI™-Compatible, 16-Bit Analog-to-Digital Converter and Temperature Sensor with Internal Reference

ADS1118
SBAS457C – OCTOBER 2010 – REVISED FEBRUARY 2013
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C and VDD = 3.3 V, unless otherwise noted.
GAIN ERROR vs TEMPERATURE
0.05
GAIN ERROR vs SUPPLY
0.15
0.04
0.03
0.1
0.02
0.05
0.01
FS = ±256 mV
0
−0.01
−0.02
−0.03
−0.04
−0.05
−40 −20 0
20 40 60 80
Temperature (°C)
Figure 20.
FS = ±0.256V
FS = ±0.512V
FS = ±1.024V
FS = ±2.048V
FS = ±4.096V
FS = ±6.144V
100 120 140
G008
0
-0.05
-0.1
-0.15
2
FS = ±2.048 V
2.5
3
3.5
4
4.5
Supply Voltage (V)
Figure 21.
www.ti.com
5
5.5
GAIN ERROR HISTOGRAM
200
540 units from 3 production lots
FS = ±2.048V
150
OPERATING CURRENT vs TEMPERATURE
300
250
VDD = 5 V
200
100
150
VDD = 2 V
VDD = 3.3 V
100
50
50
0
0
-40 -20 0 20 40 60 80 100 120 140
Gain Error (%)
G000
Figure 22.
Temperature (°C)
Figure 23.
POWER-DOWN CURRENT vs TEMPERATURE
5
4.5
VDD = 2.0 V
VDD = 3.3 V
4
VDD = 5.0 V
3.5
3
2.5
2
1.5
1
0.5
0
−40 −20 0
20 40 60 80 100 120 140
Temperature (°C)
G003
Figure 24.
0
-10
-20
-30
-40
-50
-60
-70
-80
1
FREQUENCY RESPONSE
Data Rate = 8 SPS
10
100
1k
10k
Input Frequency (Hz)
Figure 25.
10
Submit Documentation Feedback
Product Folder Links: ADS1118
Copyright © 2010–2013, Texas Instruments Incorporated