ADUC814ARU-REEL Analog Devices, ADUC814ARU-REEL Datasheet - Page 15
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: 15 of 72
- Download datasheet (847Kb)
Figure 13 and Figure 14 show typical FFT plots for the ADuC814.
These plots were generated using an external clock input via
P3.5 to achieve coherent sampling. The ADC is using its internal
reference (2.5 V) sampling a full-scale, 10 kHz sine wave test
tone input at a sampling rate of 149.79 kHz. The resultant FFTs
shown at 5 V and 3 V supplies illustrate an excellent 100 dB
noise floor, a 71 dB signal-to-noise ratio (SNR), and a THD
greater than −80 dB.
–100
–120
–140
–160
–100
–120
–140
–160
–20
–40
–60
–80
–20
–40
–60
–80
20
20
0
0
Figure 13. ADuC814 Dynamic Performance at V
Figure 14. ADuC814 Dynamic Performance at V
0
0
10
10
20
20
FREQUENCY (kHz)
FREQUENCY (kHz)
30
30
40
40
50
50
AV
f
f
SNR = 71.3dB
THD = –88.0dB
ENOB = 11.6
AV
f
f
SNR = 71.3dB
THD = –88.0dB
ENOB = 11.6
S
IN
S
IN
= 149.79kHz
= 149.79kHz
DD
= 9.910kHz
DD
= 9.910kHz
/DV
/DV
60
60
DD
DD
DD
DD
= 5 V
= 3 V
= 5V
= 3V
70
70
Rev. A | Page 15 of 72
Figure 15 and Figure 16 show typical dynamic performance
versus external reference voltages. Again excellent ac performance
can be observed in both plots with some roll-off being observed
as V
REF
80
75
70
65
60
55
50
80
75
70
65
60
55
50
falls below 1 V.
Figure 15. Typical Dynamic Performance vs. V
Figure 16. Typical Dynamic Performance vs. V
0.5
0.5
1.0
1.0
EXTERNAL REFERENCE (V)
EXTERNAL REFERENCE (V)
1.5
1.5
2.0
2.0
2.5
AV
f
2.5
S
AV
f
S
= 152kHz
DD
DD
= 152kHz
/DV
/DV
REF
REF
3.0
SNR
DD
THD
SNR
DD
5.0
, V
, V
THD
= 5V
DD
= 3V
DD
ADuC814
= 5 V
= 3 V
–70
–75
–80
–85
–90
–95
–100
–70
–80
–85
–75
–100
–90
–95
Related parts for ADUC814ARU-REEL
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Analog Devices -
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Analog Devices [Wideband Dual-Channel Linear Multiplier/Divider]
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Analog Front End Converter for Set-top Box, Cable Modem, and Other Broadband Communication Applications
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Analog Signal Handling for High Speed and Accuracy,
Manufacturer:
Analog Devices
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, Large Memory, ARM7TDMI MCU with Enhanced IRQ Handler
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, Large Memory, ARM7TDMI MCU with Enhanced IRQ Handler
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
Manufacturer:
Analog Devices
Datasheet:
Part Number:
Description:
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
Manufacturer:
Analog Devices
Datasheet: