參數(shù)資料
型號: LTC2420C
廠商: Linear Technology Corporation
英文描述: 16-Bit 2.5-V to 3.3-V/3.3-V To 5-V Level Shifting Transceiver With 3-State Outputs 48-TSSOP -40 to 85
中文描述: 20位uPower在ADC的無延遲蘇- 8
文件頁數(shù): 9/12頁
文件大?。?/td> 186K
代理商: LTC2420C
9
LTC2420
APPLICATIU
As shown in Figure 8, the LTC2420 can capture transient
data with 90dB of dynamic range (with a 300mV
P-P
input
signal at 2Hz). The exceptional DC performance of the
LTC2420 enables signals to be digitized independent of a
W
U
U
8a. Digitized Waveform
8b. Output FFT
Figure 8. Transient Signal Acquisiton
9a. Digitized Waveform with 2V DC Offset
9b. FFT Waveform with 2V DC Offset
TIME
A
0
0.05
0.10
2420 F08a
–0.05
–0.10
–0.20
–0.15
0.20
500ms
0.15
f
IN
= 2Hz
FREQUENCY (Hz)
M
–60
–40
–20
0
–80
–100
–120
2Hz
100sps
0V OFFSET
2420 F08b
TIME
A
2.00
2.05
2.10
2420 F09a
1.95
1.90
1.80
1.85
2.20
2.15
V
IN
= 300mV
P-P
+ 2V DC
FREQUENCY (Hz)
M
–60
–40
–20
0
2420 F09b
–80
–100
–120
15Hz
100sps
2V OFFSET
TIME
A
0.00
0.05
0.10
2420 F09c
–0.05
–0.10
–0.20
–0.15
0.20
0.15
V
IN
= 300mV
P-P
+ 0V DC
9c. Digitized Waveform with No Offset
Figure 9. Using the LTC2420’s High Accuracy Wide Dynamic Range to Digitize
a 300mV
P-P
15Hz Waveform with a Large DC Offset (V
CC
= 5V, V
REF
= 5V)
9d. FFT Waveform with No Offset
large DC offset. Figures 9a and 9b show the dynamic
performance with a 15Hz signal superimposed on a 2V DC
level. The same signal with no DC level is shown in Figures
9c and 9d.
FREQUENCY (Hz)
M
–60
–40
–20
0
2420 F09d
–80
–100
–120
15Hz
100sps
0V OFFSET
相關(guān)PDF資料
PDF描述
LTC2420I 16-Bit 2.5-V to 3.3-V/3.3-V To 5-V Level Shifting Transceiver With 3-State Outputs 48-TSSOP -40 to 85
LTC2420 Micropower 20-bit ADC(微功耗,20位串行模數(shù)轉(zhuǎn)換器)
LTC2435IGN 20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435-1IGN 20-Bit No Latency ADCs with Differential Input and Differential Reference
LTC2435 20-Bit No Latency ADCs with Differential Input and Differential Reference
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