Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

XTR110AD Datasheet(PDF) 7 Page - Texas Instruments

Part # XTR110AD
Description  PRECISION VOLTAGE-TO-CURRENT CONVERTER/TRANSMITTER
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

XTR110AD Datasheet(HTML) 7 Page - Texas Instruments

Back Button XTR110AD Datasheet HTML 3Page - Texas Instruments XTR110AD Datasheet HTML 4Page - Texas Instruments XTR110AD Datasheet HTML 5Page - Texas Instruments XTR110AD Datasheet HTML 6Page - Texas Instruments XTR110AD Datasheet HTML 7Page - Texas Instruments XTR110AD Datasheet HTML 8Page - Texas Instruments XTR110AD Datasheet HTML 9Page - Texas Instruments XTR110AD Datasheet HTML 10Page - Texas Instruments XTR110AD Datasheet HTML 11Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 19 page
background image
XTR110
7
SBOS141C
www.ti.com
If the supply voltage, +VCC, exceeds the gate-to-source
breakdown voltage of QEXT, and the output connection
(drain of QEXT) is broken, QEXT could fail. If the gate-to-
source breakdown voltage is lower than +VCC, QEXT can be
protected with a 12V zener diode connected from gate to
source.
Two PNP discrete transistors (Darlington-connected) can be
used for QEXT—see Figure 2. Note that an additional capaci-
tor is required for stability. Integrated Darlington transistors
are not recommended because their internal base-emitter
resistors cause excessive error.
TRANSISTOR DISSIPATION
Maximum power dissipation of QEXT depends on the power
supply voltage and full-scale output current. Assuming that
the load resistance is low, the power dissipated by QEXT is:
PMAX = (+VCC) IFS
(2)
The transistor type and heat sinking must be chosen accord-
ing to the maximum power dissipation to prevent overheat-
ing. See Table II for general recommendations.
PACKAGE TYPE
ALLOWABLE POWER DISSIPATION
TO-92
Lowest: Use minimum supply and at +25
°C.
TO-237
Acceptable: Trade-off supply and temperature.
TO-39
Good: Adequate for majority of designs.
TO-220
Excellent: For prolonged maximum stress.
TO-3
Use if hermetic package is required.
TABLE II. External Transistor Package Type and
Dissipation.
INPUT VOLTAGE RANGE
The internal op amp A1 can be damaged if its non-inverting
input (an internal node) is pulled more than 0.5V below
common (0V). This could occur if input pins 3, 4 or 5 were
driven with an op amp whose output could swing negative
under abnormal conditions. The voltage at the input of A1 is:
VA1 =
+
+
(3)
This voltage should not be allowed to go more negative than
–0.5V. If necessary, a clamp diode can be connected from
the negative-going input to common to clamp the input
voltage.
COMMON (Ground)
Careful attention should be directed toward proper con-
nection of the common (grounds). All commons should
be joined at one point as close to pin 2 of the XTR110 as
possible. The exception is the IOUT return. It can be
returned to any point where it will not modulate the
common at pin 2.
VOLTAGE REFERENCE
The reference voltage is accurately regulated at pin 12
(VREF SENSE). To preserve accuracy, any load including pin
(V
REF IN)
16
(V
IN1)
4
(V
IN2)
2
FIGURE 2. Q
EXT Using PNP Transistors.
XTR110
47nF
R
L
I
OUT
1
13
14
+V
CC
16
2
2N2907
etc.
TIP30B
etc.
0.047µF
Common
3 should be connected to this point. The circuit in Figure 3
shows adjustment of the voltage reference.
The current drive capability of the XTR110’s internal refer-
ence is 10mA. This can be extended if desired by adding an
external NPN transistor shown in Figure 4.
OFFSET (ZERO) ADJUSTMENT
The offset current can be adjusted by using the potentiom-
eter, R1, shown in Figure 5. Set the input voltage to zero and
then adjust R1 to give 4mA at the output. For spans starting
FIGURE 4. Increasing Reference Current Drive.
XTR110
15
12
+V
CC
16
2
Sense
Force
For 100mA with V
CC up to
40V use 2N3055 for Q
REF.
Q
REF
+10V
REF
FIGURE 3. Optional Adjustment of Reference Voltage.
XTR110
V
REF Adjust
15
12
11
V
REF Sense
V
REF Force
+V
CC
16
Common
2
V
REF
R
20k
R
S
(1)
Adjust Range
±5% Optimum
NOTE: (1) R
S gives higher resolution with reduced
range, set R
S = 0Ω for larger range.


Similar Part No. - XTR110AD

ManufacturerPart #DatasheetDescription
logo
Burr-Brown (TI)
XTR110AG BURR-BROWN-XTR110AG Datasheet
148Kb / 9P
   PRECISION VOLTAGE-TO-CURRENT CONVERTER/TRANSMITTER
More results

Similar Description - XTR110AD

ManufacturerPart #DatasheetDescription
logo
Burr-Brown (TI)
XTR111 BURR-BROWN-XTR111 Datasheet
284Kb / 22P
   Precision Voltage-to-Current Converter/Transmitter
XTR110 BURR-BROWN-XTR110 Datasheet
148Kb / 9P
   PRECISION VOLTAGE-TO-CURRENT CONVERTER/TRANSMITTER
logo
Texas Instruments
XTR111 TI1-XTR111_16 Datasheet
1Mb / 32P
[Old version datasheet]   Precision Voltage-to-Current Converter/Transmitter
XTR111AIDGQR TI-XTR111AIDGQR Datasheet
1Mb / 32P
[Old version datasheet]   Precision Voltage-to-Current Converter/Transmitter
XTR111 TI1-XTR111_14 Datasheet
1Mb / 33P
[Old version datasheet]   Precision Voltage-to-Current Converter/Transmitter
XTR111 TI1-XTR111 Datasheet
1Mb / 32P
[Old version datasheet]   Precision Voltage-to-Current Converter/Transmitter
logo
Burr-Brown (TI)
XTR111 BURR-BROWN-XTR111_07 Datasheet
562Kb / 27P
   Precision Voltage-to-Current Converter/Transmitter
ALD1000 BURR-BROWN-ALD1000 Datasheet
153Kb / 14P
   Precision Programmable CURRENT/VOLTAGE TRANSMITTER
logo
Microchip Technology
TC1047 MICROCHIP-TC1047_13 Datasheet
168Kb / 12P
   Precision Temperature-to-Voltage Converter
11/29/12
TC962 MICROCHIP-TC962_05 Datasheet
468Kb / 12P
   Precision Temperature-to-Voltage Converter
2006
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   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