AS1545_1 AMSCO [austriamicrosystems AG], AS1545_1 Datasheet - Page 10

• Manufacturer Part Number: AS1545_1
• Description: Dual, 12-Bit, 1MSPS, SAR ADC
• Manufacturer: AMSCO [austriamicrosystems AG]

AS1545
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
7 Typical Operating Characteristics
V
T
Figure 6. Integral Nonlinearity vs. Digital Output Code;
Figure 8. FFT @ 50kHz, External Reference;
www.austriamicrosystems.com
Figure 4. Integral Nonlinearity vs. Digital Output Code;
AMB
DD
-100
-110
-120
-0.2
-0.4
-0.6
-0.8
-0.2
-0.4
-0.6
-0.8
= 5.25V, V
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
-10
-20
-30
-40
-50
-60
-70
-80
-90
= +25ºC (unless otherwise specified).
-1
-1
20
10
1
0
1
0
0
0
0
0
REF
Input Signal Frequency (kHz)
100
1024
1024
= 2.5V, f
Digital Output Code
Digital Output Code
200
SCLK
2048
2048
= 20MHz (50% duty), f
300
f
N
SNR=72.8dB
THD = -84.6dB
SFDR = 88.2dB
SINAD = 72.5dB
Internal Reference
SAMPLE
External Reference
FFT
3072
3072
= 65536
= 1Msps
400
4096
4096
500
Revision 1.01
SAMPLE
Figure 9. FFT @ 50kHz, Internal Reference;
Figure 5. Diff. Nonlinearity vs. Digital Output Code;
Figure 7. Diff. Nonlinearity vs. Digital Output Code;
= 1MSPS, C
-0.2
-0.4
-0.6
-0.8
-100
-110
-120
-0.2
-0.4
-0.6
-0.8
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
-10
-20
-30
-40
-50
-60
-70
-80
-90
-1
-1
20
10
1
0
1
0
0
0
0
0
Input Signal Frequency (kHz)
REF
100
1024
1024
Digital Output Code
Digital Output Code
= 4.7µF, RANGE = 0, SGL/DIFF = 1,
200
2048
2048
300
External Reference
f
N
SNR=72.2dB
THD = -84.7dB
SFDR = 87.9dB
SINAD = 71.9dB
Internal Reference
SAMPLE
FFT
3072
3072
= 65536
= 1Msps
400
4096
4096
500
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