ADUC814ARU-REEL Analog Devices, ADUC814ARU-REEL Datasheet - Page 13
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ADUC814ARU-REEL
Manufacturer Part Number
ADUC814ARU-REEL
Description
MicroConverter/ Small Package 12-Bit ADC with Embedded Flash MCU
Manufacturer
Analog Devices
Datasheet
1.ADUC814ARU-REEL.pdf
(72 pages)
- Current page: 13 of 72
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TYPICAL PERFORMANCE CURVES
The typical performance plots presented in this section
illustrate typical performance of the ADuC814 under various
operating conditions. Note that all typical plots in this section
were generated using the ADuC814BRU, i.e., the B-grade part.
Figure 3 and Figure 4 show typical ADC integral nonlinearity
(INL) errors from ADC Code 0 to Code 4095 at 5 V and 3 V
supplies, respectively. The ADC is using its internal reference
(2.5 V) and operating at a sampling rate of 152 kHz. The typical
worst-case errors in both plots are just less than 0.3 LSBs.
–0.1
–0.2
–0.3
–0.4
–0.1
–0.2
–0.3
–0.4
0.4
0.3
0.2
0.1
0.4
0.3
0.2
0.1
0
0
0
0
AV
f
AV
f
S
S
= 152kHz
= 152kHz
DD
511
DD
511
/DV
/DV
Figure 3. Typical INL Error, V
Figure 4. Typical INL Error, V
DD
DD
1023
1023
= 5V
= 3V
1535
1535
ADC CODES
ADC CODES
2047
2047
2559
2559
DD
DD
= 5 V
= 3 V
3071
3071
3583
3583
4095
4095
Rev. A | Page 13 of 72
Figure 5 and Figure 6 show the variation in worst-case positive
(WCP) INL and worst-case negative (WCN) INL versus
external reference input voltage.
Figure 7 and Figure 8 show typical ADC differential nonlinearity
(DNL) errors from ADC Code 0 to Code 4095 at 5 V and 3 V
supplies, respectively. The ADC is using its internal reference
(2.5 V) and operating at a sampling rate of 152 kHz. The typical
worst-case errors in both plots are just less than 0.2 LSBs.
–0.2
–0.4
–0.6
–0.2
–0.4
–0.6
–0.8
1.2
1.0
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
0
0
Figure 5. Typical Worst-Case INL Error vs. V
Figure 6. Typical Worst-Case INL Error vs. V
0.5
0.5
1.0
1.0
EXTERNAL REFERENCE (V)
EXTERNAL REFERENCE (V)
1.5
1.5
2.0
2.0
WCN INL
2.5
WCN INL
2.5
WCP INL
AV
f
WCP INL
AV
S
f
S
DD
= 152kHz
DD
= 152kHz
REF
REF
/DV
/DV
, V
, V
5.0
3.0
DD
DD
DD
DD
= 5V
ADuC814
= 5 V
= 3 V
= 3V
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
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