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XTR108 Datasheet(Fiches technique) 3 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
Numéro de pièce XTR108
Description  4-20mA, TWO-WIRE TRANSMITTER “Smart” Programmable with Signal Conditioning
Télécharger  32 Pages
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Fabricant  BURR-BROWN [Burr-Brown (TI)]
Site Internet  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

XTR108 Datasheet(HTML) 3 Page - Burr-Brown (TI)

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XTR108
3
SBOS187C
www.ti.com
ELECTRICAL CHARACTERISTICS (Cont.)
Boldface limits apply over the specified temperature range, TA = –40°C to +85°C.
At TA = +25°C, VPS = 24V, and Supertex DN2540 external depletion-mode FET transistor, unless otherwise noted, all voltages measured with respect to IRET pin.
XTR108EA
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PGA (Cont.)
Input Impedance: Differential
30 || 6
G
Ω || pF
Input Impedance: Common-Mode
50 || 20
G
Ω || pF
Voltage Noise, 0.1Hz to 10Hz
6
µVp-p
PGA Gain
Gain Range Steps
6.25, 12.5, 25, 50, 100, 200, 400
6.25
400
V/V
Initial Error
Gain = 6.25, 12.5, 25, 50
±0.5
±2.5
%
G = 100, 200
±0.5
±3%
G = 400
±0.8
±3.5
%
vs Temperature
±30
ppm/
°C
Output Voltage Range(5)
RLOAD = 6.34kΩ to IRET
0.2
4.5
V
Typical Operating Range
for 4-20mA XTR Output
0.5 to 2.5
V
Capacitive Drive
200
pF
Short-Circuit Current
+6/–9mA
ZERO OFFSET DACS
Zero-Code Output Level
VCM = 1V, VIN = 0V
RTO(6) of Current Amplifier
RV/I = 6.34kΩ
4.116
mA
RTO(6) of PGA
522
mV
Coarse DAC, 256 Steps
7 Bits + Sign
Adjustment Range
Relative to Zero-Code Level
RTO(6) of Current Amplifier
–3.77 to +3.77
mA
RTO(6) of PGA
–470 to +470
mV
Step Size
RTO(6) of Current Amplifier
0.029
mA
RTO(6) of PGA
3.7
mV
Linearity
±0.5
LSB
Fine DAC, 256 Steps
Relative to Zero-Code Level
7 Bits + Sign
Adjustment Range
RTO(6) of Current Amplifier
–236 to +236
µA
RTO(6) of PGA
–29.4 to +29.4
mV
Step Size
RTO(6) of Current Amplifier
0.0018
mA
RTO(6) of PGA
0.23
mV
Linearity
±1LSB
Noise, RTO(6)
f = 0.1Hz to 10Hz
1.1
µAp-p
CURRENT AMPLIFIER
Current Gain
49
50
51
A/A
Current Gain Drift
10
ppm/
°C
CURRENT SOURCES, IREF1 AND IREF2
Zero-Code Output Level, Each
RSET = 12.1kΩ
480
493
510
µA
Coarse DAC, 256 Steps
7 Bits + Sign
Adjustment Range(7)
–195 to +195
µA
Step Size
1.54
µA
Fine DAC, 256 Steps
7 Bits + Sign
Adjustment Range(7)
–12.2 to +12.2
µA
Step Size
96
nA
Linearity
Coarse
±0.2
LSB
Fine
±0.5
LSB
vs Temperature
±35
ppm/
°C
Matching
±0.2
%
vs Temperature
±10
ppm/
°C
Compliance Voltage, Positive(5)
VS – 2VS – 1.5
V
Output Impedance
100
M
Current Noise
f = 0.1Hz to 10Hz
0.015
µAp-p
LINEARIZATION DAC
Linearization Range, 256 Steps
8 Bits
Max Linearization Coefficient
∆I
REF/∆VIN, RLIN = 15.8kΩ
0.99
µA/mV
Step Size
3.9
nA/mV
SUB-REGULATOR, VS
Supply Voltage for XTR
Voltage
4.8
5.1
5.4
V
vs Temperature
±50
ppm/
°C
vs Loop-Supply Voltage
VLOOP = 7.5V to 24V
±0.03
mV/V


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