參數(shù)資料
型號： XTR108EA
英文描述： 4-20mA, TWO-WIRE TRANSMITTER Smart Programmable with Signal Conditioning
中文描述： 的4 - 20mA，兩線制變送器可編程智能與信號調(diào)理
文件頁數(shù)： 4/27頁
文件大?。?/td> 497K
代理商： XTR108EA
XTR108
SBOS187B
4
www.ti.com
XTR108EA
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ELECTRICAL CHARACTERISTICS
(Cont.)
Boldface
limits apply over the specified temperature range,
T
A
=
–
40
°
C to +85
°
C.
At T
A
= +25
°
C, V
PS
= 24V, and Supertex DN2540 external depletion-mode FET transistor, unless otherwise noted, all voltages measured with respect to I
RET
pin.
NOTES: (1) Over-scale and under-scale complies with NAMUR NE43 recommendation. (2) Span adjustment is determined by PGA gain and sensor
excitation. (3) Span can be digitally adjusted in three ways: PGA gain, current reference Coarse, and current reference Fine. (4) RTI = Referred to Input.
(5) Current source output voltage measured with respect to I
. (6) RTO = Referred to Output. (7) Excitation DAC range sufficient to adjust span fully
between PGA gain steps. (8) Output current into external circuitry is limited by an external MOS power FET. (9) Measured with over- and under-scale limits
disabled.
OVER- AND UNDER-SCALE LIMITING
Over-Scale DAC: 16 Steps
Adjustment Range
RTO
(6)
of Current Amplifier
RTO
(6)
of PGA
Step Size
RTO
(6)
of Current Amplifier
RTO
(6)
of PGA
Accuracy
Under-Scale DAC: 8 Steps
Adjustment Range
RTO
(6)
of Current Amplifier
RTO
(6)
of PGA
Step Size
RTO
(6)
of Current Amplifier
RTO
(6)
of PGA
Accuracy
4
Bits
R
VI
= 6.34k
20.7 to 28.1
2.625 to 3.563
mA
V
0.49
62.5
±
10
3
mA
mV
%
Bits
R
VI
= 6.34k
2.17 to 3.55
275 to 450
mA
mV
0.195
25
±
5
mA
mV
%
VOLTAGE REFERENCE, V
REF
Internal Bandgap
vs Temperature
1.193
±
5
V
±
50
ppm/
°
C
UNCOMMITTED OP AMP
Input
Offset Voltage
vs Temperature
vs Common-Mode Voltage
Open-Loop Gain
Common-Mode Input Range
Output Voltage Range
V
CM
= 2V
±
2
±
3
90
110
mV
μ
V/
°
C
dB
dB
V
V
0 to 3.5
R
L
= 10k
to V
S
/2
0.2
V
S
–
0.2
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels
V
IL
V
IH
V
OL
V
OH
Input Current
I
IH
(CS1)
I
IL
(CS1)
I
IH
, I
IL
(SCLK, DIO)
CMOS
0
0.8
V
S
0.4
V
V
V
V
3.5
I
OL
= 300
μ
A
I
OH
=
–
300
μ
A
V
S
–
1
3.5 < V
IN
< V
S
0 < V
IN
< 0.8
0 < V
IN
< V
S
–
200
–
20
–
20
–
120
–
6
–
6
10
10
10
μ
A
μ
A
μ
A
INTERNAL OSCILLATOR
Frequency, f
OSC
210
kHz
TEMPERATURE RANGE
Specification
Operating
θ
JA
, Junction to Ambient
–
40
–
55
+85
+125
°
C
°
C
100
°
C/W
LOOP SUPPLY
Voltage Range
Quiescent Current
with Supertex DN2540
7.5
V
R
SET
Open, L
IN
Reg = 0, No Sensor Current
(8)(9)
0.5
mA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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XTR108EA-2K5 制造商:BB 制造商全稱:BB 功能描述:4-20mA, TWO-WIRE TRANSMITTER a??Smarta?? Programmable with Signal Conditioning
XTR108EA-2K5G4 制造商:BB 制造商全稱:BB 功能描述:4-20mA, TWO-WIRE TRANSMITTER a??Smarta?? Programmable with Signal Conditioning
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