Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LTC2495 Datasheet(PDF) 18 Page - Linear Technology

Part # LTC2495
Description  16-Bit 8-/16-Channel ?誇 ADC with PGA, Easy Drive and I2C Interface
PDF  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2495 Datasheet(HTML) 18 Page - Linear Technology

Back Button LTC2495 Datasheet HTML 14Page - Linear Technology LTC2495 Datasheet HTML 15Page - Linear Technology LTC2495 Datasheet HTML 16Page - Linear Technology LTC2495 Datasheet HTML 17Page - Linear Technology LTC2495 Datasheet HTML 18Page - Linear Technology LTC2495 Datasheet HTML 19Page - Linear Technology LTC2495 Datasheet HTML 20Page - Linear Technology LTC2495 Datasheet HTML 21Page - Linear Technology LTC2495 Datasheet HTML 22Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 32 page
background image
LTC2495
18
2495f
The first bit of the second word is the enable bit for the
conversion configuration (EN2). If this bit is set to 0, then
the next conversion is performed using the previously
selected converter configuration.
If the EN2 bit is set to a 1, a new configuration can be
loaded into the device (see Table 4). The first bit (IM) is
used to select the internal temperature sensor. If IM = 1,
the following conversion will be performed on the internal
temperature sensor rather than the selected input channel.
The next two bits (FA and FB) are used to set the rejection
frequency. The next bit (SPD) is used to select either the
1x output rate if SPD = 0 (auto-calibration is enabled and
the offset is continuously calibrated and removed from
the final conversion result) or the 2x output rate if SPD =
1 (offset calibration disabled, multiplexing output rates up
to 15Hz with no latency). The final three bits (GS2, GS1,
GS0) are used to set the gain. When IM = 1 (temperature
measurement) SPD, GS2, GS1 and GS0 will be ignored
and the device will operate in 1x mode.
The configuration remains valid until a new input word
with EN = 1 (the first three bits are 101 for the first word)
and EN2 = 1 (for the second write byte) is shifted into
the device.
Rejection Mode (FA, FB)
The LTC2495 includes a high accuracy on-chip oscillator
with no required external components. Coupled with an
integrated fourth order digital low pass filter, the LTC2495
rejects line frequency noise. In the default mode, the
LTC2495 simultaneously rejects 50Hz and 60Hz by at least
87dB. If more rejection is required, the LTC2495 can be
configured to reject 50Hz or 60Hz to better than 110dB.
APPLICATIONS INFORMATION
Table 4. Converter Configuration
1
0
EN SGL ODD A2
A1
A0 EN2
IM
FA
FB
SPD
GS2 GS1 GS0
CONVERTER CONFIGURATION
100
Any
Input
Channel
X
X
X
X
X
X
X
X
Keep Previous
1
0
1
0
X
X
X
X
X
X
X
Keep Previous
101
1
0
Any
Rejection
Mode
0
0
0
0
External Input, Gain = 1, Autocalibration
1
0
1
1
0
0
0
0
1
External Input, Gain = 4, Autocalibration
1
0
1
1
0
0
0
1
0
External Input, Gain = 8, Autocalibration
1
0
1
1
0
0
0
1
1
External Input, Gain = 16, Autocalibration
1
0
1
1
0
0
1
0
0
External Input, Gain = 32, Autocalibration
1
0
1
1
0
0
1
0
1
External Input, Gain = 64, Autocalibration
1
0
1
1
0
0
1
1
0
External Input, Gain = 128, Autocalibration
1
0
1
1
0
0
1
1
1
External Input, Gain = 264, Autocalibration
1
0
1
1
0
1
0
0
0
External Input, Gain = 1, 2x Speed
1
0
1
1
0
1
0
0
1
External Input, Gain = 2, 2x Speed
1
0
1
1
0
1
0
1
0
External Input, Gain = 4, 2x Speed
1
0
1
1
0
1
0
1
1
External Input, Gain = 8, 2x Speed
1
0
1
1
0
1
1
0
0
External Input, Gain = 16, 2x Speed
1
0
1
1
0
1
1
0
1
External Input, Gain = 32, 2x Speed
1
0
1
1
0
1
1
1
0
External Input, Gain = 64, 2x Speed
1
0
1
1
0
1
1
1
1
External Input, Gain = 128, 2x Speed
1
0
1
1000
Any
Speed
Any
Gain
External Input, Simultaneous 50Hz/60Hz Rejection
1
0
1
1001
External Input, 50Hz Rejection
1
0
1
1010
External Input, 60Hz Rejection
1
0
1
1011
Reserved, Do Not Use
1
0
1
1100
X
X
X
X
Temperature Input, Simultaneous 50Hz/60Hz Rejection
1
0
1
1101
X
X
X
X
Temperature Input, 50Hz Rejection
1
0
1
1110
X
X
X
X
Temperature Input, 60Hz Rejection
1
0
1
1111
X
X
X
X
Reserved, Do Not Use



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


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