Datasheet

Frequency(kHz)
100
Amplitude(dB)
0
-20
-40
-60
-80
-100
-120
-140
-160
0 200 300 400 500
10kHzInput
+VA=5V
f =1MSPS
S
V =5V
REF
Frequency(kHz)
100
Amplitude(dB)
0
-20
-40
-60
-80
-100
-120
-140
-160
0 200 300 400 500
100kHzInput
+VA=5V
f =1MSPS
S
V =5V
REF
OutputCode
HitsperCode
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
3
4 5 6 7
REF=2.5V
BVDD(V)
I
(mA)
BVDD
3.0
2.5
2.0
1.5
1.0
0.5
0
1.7
1.9
2.1
2.3
1.7
1.9
2.5
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
4.7
4.9
5.1
5.3
5.5
OutputCode
REF=5V
HitsperCode
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
2330
2331 2332 2333 2334
ADS7229
ADS7230
SBAS437A MAY 2008 REVISED JUNE 2009 ...............................................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At 40 ° C to +85 ° C, V
REF
[(REF+) (REF )] = 5V when +VA = +VBD = 5V or V
REF
[(REF+) (REF )] = 2.5V when +VA =
+VBD = 3V, f
SCLK
= 42MHz, or V
REF
= 2.5 when +VA = +VBD = 2.7V, f
SCLK
= 37.8MHz, and f
I
= dc for dc curves, f
I
= 100kHz
for ac curves with 5V supply, and f
I
= 10kHz for ac curves with 3V supply, unless otherwise noted.
FFT FFT
Figure 48. Figure 49.
I/O SUPPLY CURRENT
vs I/O SUPPLY VOLTAGE CODE HISTOGRAM
Figure 50. Figure 51.
CODE HISTOGRAM
Figure 52.
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Product Folder Link(s): ADS7229 ADS7230