AMC7891_15 Datasheet, PDF (10/41 Pages) Texas Instruments – Analog Monitor and Control Circuit with 10-Bit, Multi-Channel ADC and Four DACs, Temperature Sensor, and 12 GPIOs

AMC7891
SBAS518A – AUGUST 2011 – REVISED DECEMBER 2011
www.ti.com
TYPICAL CHARACTERISTICS: DAC
AV_DD = 5 V, GPIOV_DD = 5 V, SPIV_DD = 5 V, AGND = DGND = 0 V, External ADC reference = AV_DD
(unless otherwise noted)
1.000
1.000
0.750
0.750
0.500
0.500
0.250
0.250
0.000
0.000
−0.250
−0.250
−0.500
−0.500
−0.750
−1.000
0
T=25ºC
128 256 384 512 640 768 896 1024
Code
G001
Figure 3. DAC INTEGRAL NON-LINEARITY
−0.750
−1.000
0
T=25ºC
128 256 384 512 640 768 896 1024
Code
G002
Figure 4. DAC DIFFERENTIAL NON-LINEARITY
1.000
0.750
0.500
INL Max
0.250
0.000
−0.250
−0.500
INL Min
−0.750
−1.000
−40 −20 0
20 40 60 80 100
Temperature (°C)
Figure 5. DAC INL vs. TEMPERATURE
120
G003
1.000
0.750
0.500
DNL Max
0.250
0.000
−0.250
−0.500
DNL Min
−0.750
−1.000
−40 −20 0
20 40 60 80 100
Temperature (°C)
Figure 6. DAC DNL vs. TEMPERATURE
120
G004
5
4
3
2
1
0
−1
−2
−3
−4
−5
−40 −20 0
20 40 60 80 100 120
Temperature (°C)
G005
Figure 7. DAC OFFSET ERROR vs. TEMPERATURE
200
150
100
50
0
−50
−100
−150
−200
−40 −20 0
20 40 60 80 100 120
Temperature (°C)
G006
Figure 8. DAC GAIN ERROR vs. TEMPERATURE
10
Submit Documentation Feedback
Product Folder Link(s): AMC7891
Copyright © 2011, Texas Instruments Incorporated