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THS4521 датащи(PDF) 35 Page - Texas Instruments

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номер детали THS4521
подробное описание детали  VERY LOW POWER,NEGATIVE RAIL INPUT,RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER
PDF  48 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

THS4521 датащи(HTML) 35 Page - Texas Instruments

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THS4521
ADS8321
V
OCM
5V
1nF
-
IN
+IN
V
IN+
V
IN-
1kW
1kW
1kW
49.9 W
49.9 W
0.22 F
m
68pF
68pF
1kW
Open
0
20
40
60
80
100
120
140
-
-
-
-
-
-
-
-160
0
10 k
20 k
30 k
40 k
50 k
Frequency (Hz)
V = 5.0 V
G = 1 V/V
R =
1 k
S
F
R =
Load = 2 x 49.9
+ 2 pF
G
W
W
10-kHz FFT
0
20
40
60
80
100
120
140
-
-
-
-
-
-
-
-160
0
10 k
20 k
30 k
40 k
50 k
Frequency (Hz)
V = 5.0 V
G = 1 V/V
R =
1 k
S
F
R =
Load = 2 x 49.9
+ 2 pF
G
W
W
2-kHz FFT
THS4521
THS4522
THS4524
www.ti.com
SBOS458D – DECEMBER 2008 – REVISED AUGUST 2010
ADC Driver Performance:
Data were taken using the ADS8321 at 100 kSPS
THS4521 and ADS8321 Combined
with input frequencies of 2 kHz and 10 kHz and
Performance
signal levels that were -0.5 dBFS. FFT plots that
illustrate the spectral performance are given in
To
demonstrate
achievable
performance,
the
Figure 85 and Figure 86. Tabulated ac analysis
THS4521 is tested as the drive amplifier for the
results are listed in Table 7 and compared to the
ADS8321 16-bit SAR ADC. The ADS8321 offers
ADS8321 data sheet typical performance.
excellent ac and dc performance, with ultra-low power
and small size. The circuit shown in Figure 84 was
used to test the performance.
Figure 84. THS4521 and ADS8321 Test Circuit
Figure 85. 2-kHZ FFT
Figure 86. 10-kHz FFT
Table 7. AC Analysis
Configuration
Tone
Signal (dBFS)
SNR (dBc)
THD (dBc)
SINAD (dBc)
SFDR (dBc)
THS4521 and
2 kHz
–0.5
86.7
–97.8
86.4
100.7
ADS8321
10 kHz
–0.5
85.2
–98.1
85.2
102.2
ADS8321 Data
10 kHz
–0.5
87
–86
84
86
sheet (typ)
Copyright © 2008–2010, Texas Instruments Incorporated
Submit Documentation Feedback
35
Product Folder Link(s): THS4521 THS4522 THS4524



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