X
R
T
1
XTR111
1
1
SBOS375 − NOVEMBER 2006
Precision Voltage-to-Current
Converter/Transmitter
FD EATURES
DESCRIPTION
The XTR111 is a precision voltage-to-current converter
designed for the standard 0mA−20mA or 4mA−20mA
analog signals, and can source up to 36mA. The ratio
between input voltage and output current is set by the
single resistor RSET. The circuit can also be modified for
voltage output.
EASY-TO-DESIGN INPUT/OUTPUT RANGES:
0mA−20mA, 4mA−20mA, 5mA−25mA
AND VOLTAGE OUTPUTS
D
D
D
D
D
D
D
D
NONLINEARITY: 0.002%
LOW OFFSET DRIFT: 1µV/5C
ACCURACY: 0.015%
An external P-MOSFET transistor ensures high output
resistance and a broad compliance voltage range
extending from 2V below the supply voltage, VVSP, to
voltages well below GND.
SINGLE-SUPPLY OPERATION
WIDE SUPPLY RANGE: 7V TO 44V
OUTPUT ERROR FLAG (EF)
OUTPUT DISABLE (OD)
The adjustable 3V to 15V sub-regulator output provides
the supply voltage for additional circuitry.
ADJUSTABLE VOLTAGE REGULATOR:
3V TO 15V
The XTR111 is available in a DFN surface-mount package.
AD PPLICATIONS
UNIVERSAL VOLTAGE-CONTROLLED
CURRENT SOURCE
24V
1
9
VSP
XTR111
OD
EF
Output Disable
Output Failure
D
CURRENT OR VOLTAGE OUTPUT FOR
3-WIRE SENSOR SYSTEMS
8
REGF
REGS
I−Mirror
5
Regulator
Out
IS
2
D
PLC OUTPUT PROGRAMMABLE DRIVER
CURRENT-MODE SENSOR EXCITATION
D
4
VG
3
G
S
D
3V
IOUT
ISET
Signal
Input
Load
0mA to 20mA
4mA to 20mA
6
VIN
(
Load Ground)
GND
SET
10
7
VVIN
IOUT = 10
RSET
(R )
SET
IOUT =10• ISET
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semiconductor products and disclaimers thereto appears at the end of this data sheet.
All other trademarks are the property of their respective owners.
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