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參數(shù)資料
| 型號： | XTR110AG |
| 英文描述： | PRECISION VOLTAGE-TO-CURRENT CONVERTER/TRANSMITTER |
| 中文描述： | 精密的電壓電流轉(zhuǎn)換器/變送器 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 148K |
| 代理商： | XTR110AG |
7
XYR110
FIGURE 6. Zero and Span of 0V to +10V Input, 4mA to
20mA Output Configuration (see Figure 5).
FIGURE 7. Zero and Span of 0V to +10V
, 0mA to 20mA
Output Configuration (see Figure 5).
at 0mA, the following special procedure is recommended:
set the input to a small nonzero value and then adjust R
1
to
the proper output current. When the input is zero the output
will be zero. Figures 6 and 7 show graphically how offset is
adjusted.
SPAN ADJUSTMENT
The span is adjusted at the full-scale output current using the
potentiometer, R
2
, shown in Figure 5. This adjustment is
interactive with the offset adjustment, and a few iterations
may be necessary. For the circuit shown, set the input
voltage to +10V full scale and adjust R
2
to give 20mA full-
scale output. Figures 6 and 7 show graphically how span is
adjusted.
The values of R
2
, R
3
, and R
4
for adjusting the span are
determined as follows: choose R
4
in series to slightly de-
crease the span; then choose R
2
and R
3
to increase the span
to be adjustable about the center value.
LOW TEMPERATURE COEFFICIENT OPERATION
Although the precision resistors in the XTR110 track within
1ppm/
°
C, the output current depends upon the absolute
temperature coefficient (TC) of any one of the resistors, R
6
,
R
7
, R
8
, and R
9
. Since the absolute TC of the output current
can have 20ppm/
°
C, maximum, the TC of the output current
can have 20ppm/
°
C drift. For low TC operation, zero TC
resistors can be substituted for either the span resistors (R
6
or R
7
) or for the source resistor (R
9
) but not both.
EXTENDED SPAN
For spans beyond 40mA, the internal 50
resistor (R
9
) may
be replaced by an external resistor connected between pins
13 and 16.
Its value can be calculated as follows:
R
EXT
= R
9
(Span
OLD
/Span
NEW
)
Since the internal thin-film resistors have a 20% absolute
value tolerance, measure R
9
before determining the final
value of R
EXT
. Self-heating of R
EXT
can cause nonlinearity.
Therefore, choose one with a low TC and adequate power
rating. See Figure 10 for application.
FIGURE 5. Offset and Span Adjustment Circuit for 0V to
+10V Input, 4mA to 20mA Output.
20
15
10
5
0
2
4
6
8
10
Input Voltage, V
IN1
(V)
O
O
0mA Offset
Zero Adjust
Span Adjust
20mA Span
See values in Figure 6.
In addition, connect
pins 9 and 10 together.
20
15
10
5
0
2
4
6
8
10
Input Voltage, V
IN1
(V)
O
O
4mA Offset
Zero Adjust ±1.8% Optimum
Span Adjust ±0.45%
as shown
16mA Span
R
1
= 100k
R
2
= 100k
R
3
= 49.9k
R
4
= 31.6
–2.5
XTR110
15
1V
to
+5V
Out
1
13
16
2
R
4
S
G
D
+
–
9
8
7
6
R
1
R
2
R
3
Span Adjust
Offset
Adjust
0V
to
+10V
4mA to
20mA Out
R
L
250
24V
1μF Tantalum
Third Wire
14
12
3
4
5
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PDF描述 |
|---|---|
| XTR112 | 4-20mA CURRENT TRANSMITTERS with Sensor Excitation and Linearization |
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| XTR114UA | Connector assemblies, Mouse Computer cables; Connector Type A:DB9 Male; Connector Type B:DB9 Female; Cable Length:25ft |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XTR110AG | 制造商:Texas Instruments 功能描述:4-20mA Transmitter IC |
| XTR110BG | 功能描述:電流靈敏放大器 Prec Vltg-To-Crnt Cnertr/Trnsmtr RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| XTR110KP | 功能描述:電流靈敏放大器 Prec Vltg-To-Crnt Cnertr/Trnsmtr RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| XTR110KP | 制造商:Texas Instruments 功能描述:VOLT/CURRENT CONVERTER DIP16 110 |
| XTR110KPG4 | 功能描述:電流靈敏放大器 Prec Vltg-To-Crnt Cnertr/Trnsmtr RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
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