AD7397AN 查看數據表（PDF） - Analog Devices
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AD7397AN Datasheet PDF : 12 Pages
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Typical Performance Characteristics–AD7396/AD7397
1.5
VDD = +3V
VREF = +2.5V
1.0
TA = –55؇C
AD7396
0.5
0.0
–0.5
TA = +25؇C, +85؇C
–1.0
–1.5
0
512 1024 1536 2048 2560 3072 3584 4096
CODE – Decimal
Figure 4. AD7396 INL vs. Code and
Temperature
1.0
0.8 VDD = +2.7V
VREF = +2.5V
0.6
AD7397
0.4
TA = –55؇C
0.2
0.0
–0.2
–0.4
–0.6
TA = +25؇C, +85؇C
–0.8
–1.0
0
128 256 384 512 640 768 896 1024
CODE – Decimal
Figure 5. AD7397 INL vs. Code and
Temperature
30
AD7397
20
SS = 200 UNITS
TA = +25؇C
VDD = +2.7V
VREF = +2.5V
10
0
–5
0
5
10
TOTAL UNADJUSTED ERROR
HISTOGRAM – LSB
Figure 6. AD7397 TUE Histogram
1.0
0.8 AD7397
0.6
0.4
VDD = +2.7V
VREF = +2.5V
0.2
0.0
–0.2
–0.4
TA = +25؇C, +85؇C, –55؇C
SUPERIMPOSED
–0.6
–0.8
–1.0
0
128 256 384 512 640 768 896 1024
CODE – Decimal
Figure 7. AD7397 DNL vs. Code and
Temperature
60
AD7396
40
SS = 200 UNITS
VDD = +2.7V
VREF = +2.5V
TA = –40؇C TO +85؇C
20
0
–55 –50 –45 –40 –35 –30
FULL-SCALE OUTPUT TEMPCO
HISTOGRAM – ppm/؇C
Figure 8. AD7396 Full-Scale Tempco
Histogram
100
SS = 200 UNITS
VDD = +2.7V
80 VREF = +2.5V
TA = –40؇C TO +85؇C
60
AD7397
40
20
0
–70
–60
–50
–40
–30
FULL-SCALE TEMPCO – ppm/؇C
Figure 9. AD7397 Full-Scale Tempco
Histogram
1.5
1.0
0.5
0
–0.5
VDD = +5V
TA = +25؇C
CODE = HALF SCALE
–1.0
–1.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VREF – Volts
Figure 10. INL Error vs. Reference
Voltage
40
40
AD7396
20
20
0
0
–20
VDD = +5V
TA = +25؇C
FSE (LSB) = FSE (V) ؋ 4096/VREF (V)
–40
0
1
2
3
4
VREF – V
–20
–40
5
Figure 11. Full-Scale Error vs. Refer-
ence Voltage
10
VDD = +5V
VREF = +2.5V
8
TA = +25؇C
6
4
2
0
1
10
100
1k
10k 100k
FREQUENCY – Hz
Figure 12. Output Noise Voltage
Density vs. Frequency
REV. 0
–7–
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