Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LTC2494 Datasheet(PDF) 33 Page - Linear Technology

Part # LTC2494
Description  16-Bit 8-/16-Channel ?誇 ADC with PGA and Easy Drive Input Current Cancellation
PDF  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2494 Datasheet(HTML) 33 Page - Linear Technology

Back Button LTC2494 Datasheet HTML 28Page - Linear Technology LTC2494 Datasheet HTML 29Page - Linear Technology LTC2494 Datasheet HTML 30Page - Linear Technology LTC2494 Datasheet HTML 31Page - Linear Technology LTC2494 Datasheet HTML 32Page - Linear Technology LTC2494 Datasheet HTML 33Page - Linear Technology LTC2494 Datasheet HTML 34Page - Linear Technology LTC2494 Datasheet HTML 35Page - Linear Technology LTC2494 Datasheet HTML 36Page - Linear Technology  
Zoom Inzoom in Zoom Outzoom out
 33 / 36 page
background image
LTC2494
33
2494fb
Figure 26. Measure Input Normal Mode Rejection vs Input
Frequency with Input Perturbation of 150% (60Hz Notch)
Figure 27. Measure Input Normal Mode Rejection vs Input
Frequency With input Perturbation of 150% (50Hz Notch)
Figure 28. Input Normal Mode Rejection 2x Speed Mode
Figure 29. Input Normal Mode Rejection 2x Speed Mode
APPLICATIONS INFORMATION
rejection of line frequencies remains unchanged, thus fully
differential input signals with a high degree of symmetry
on both the IN+ and IN– pins will continue to reject line
frequency noise.
An increase in fEOSC also increases the effective dynamic
input and reference current. External RC networks will
continue to have zero differential input current, but the
time required for complete settling (580ns for fEOSC =
307.2kHz) is reduced, proportionally.
Once the external oscillator frequency is increased above
1MHz (a more than 3x increase in output rate) the effective-
ness of internal auto calibration circuits begins to degrade.
This results in larger offset errors, full scale errors, and
decreased resolution (see Figures 31 to 38).
INPUT FREQUENCY (Hz)
0
15
30
45
60
75
90
105 120 135 150 165 180 195 210 225 240
2494 F26
0
–20
–40
–60
–80
–100
–120
VCC = 5V
VREF = 5V
VIN(CM) = 2.5V
TA = 25°C
VIN(P-P) = 5V
VIN(P-P) = 7.5V
(150% OF FULL SCALE)
INPUT FREQUENCY (Hz)
0
2494 F27
0
–20
–40
–60
–80
–100
–120
VCC = 5V
VREF = 5V
VIN(CM) = 2.5V
TA = 25°C
VIN(P-P) = 5V
VIN(P-P) = 7.5V
(150% OF FULL SCALE)
12.5
25
37.5
50
62.5
75
87.5 100 112.5 125 137.5 150 162.5 175 187.5 200
INPUT SIGNAL FREQUENCY (fN)
2494 F28
0
–20
–40
–60
–80
–100
–120
0
fN
2fN 3fN 4fN 5fN
6fN 7fN
8fN
INPUT SIGNAL FREQUENCY (fN)
2494 F29
0
–20
–40
–60
–80
–100
–120
250
248
252 254 256 258 260 262 264
Figure 30. Input Normal Mode Rejection 2x Speed Mode with
and Without Running Averaging
DIFFERENTIAL INPUT SIGNAL FREQUENCY (Hz)
48
–70
–80
–90
–100
–110
–120
–130
–140
54
58
2494 F30
50
52
56
60
62
NO AVERAGE
WITH
RUNNING
AVERAGE



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com