XTR300 Datasheet, PDF (1/27 Pages) Burr-Brown (TI) – Industrial Analog Current/Voltage OUTPUT DRIVER

XTR300
SBOS336B − JUNE 2005 − REVISED MARCH 2006
Industrial Analog Current/Voltage
OUTPUT DRIVER
FEATURES
D USER-SELECTABLE: Voltage or Current
Output
D +40V SUPPLY VOLTAGE
D V_OUT: ±10V (up to ±17.5V at ±20V supply)
D I_OUT: ±20mA (linear up to ±24mA)
D SHORT- OR OPEN-CIRCUIT FAULT
INDICATOR PIN
D NO CURRENT SHUNT REQUIRED
D OUTPUT DISABLE FOR SINGLE INPUT MODE
D THERMAL PROTECTION
D OVER-CURRENT PROTECTION
D SEPARATE DRIVER AND RECEIVER
CHANNELS
D DESIGNED FOR TESTABILITY
C_C
Input Signal
(Optional)
R_OS
V_REF
XTR300 V+
V−
I_MON
R_IMON
1kΩ
V_IN
SET
Current Copy
I_COPY
I_DRV
OPA
DRV
R_SET
GND1
R_IA
1kΩ
GND3
I_IA
IA_OUT
OD
M1 Digital
M2 ^Control
IA_IN+
RG₁
IA
RG ₂
IA_IN−
Error
Flags
EF_CM
EF_LD
EF_OT
DGND
R_GAIN Load
G ND 2
Figure 1. XTR300 Basic Diagram
APPLICATIONS
D PLC OUTPUT PROGRAMMABLE DRIVER
D INDUSTRIAL CROSS-CONNECTORS
D INDUSTRIAL HIGH-VOLTAGE I/O
D 3-WIRE-SENSOR CURRENT OR VOLTAGE
OUTPUT
D ±10V 2- AND 4-WIRE VOLTAGE OUTPUT
Patents Pending
DESCRIPTION
The XTR300 is a complete output driver for industrial and
process control applications. The output can be configured
as current or voltage by the digital I/V select pin. No
external shunt resistor is required. Only external
gain-setting resistors and a loop compensation capacitor
are required.
The separate driver and receiver channels provide
flexibility. The Instrumentation Amplifier (IA) can be used
for remote voltage sense or as a high-voltage, high-
impedance measurement channel. In voltage output
mode, a copy of the output current is provided, allowing
calculation of load resistance.
The digital output selection capability, together with the
error flags and monitor pins, make remote configuration
and troubleshooting possible. Fault conditions on the
output and on the IA input as well as over-temperature
conditions are indicated by the error flags. The monitoring
pins provide continuous feedback about load power or
impedance. For additional protection, the maximum output
current is limited and thermal protection is provided.
Digital communication like HART can be modulated onto
the input signal. The receive signal applied to the output
can be detected at the monitor pins in both current and
voltage output modes. In addition to HART
communication, the device offers system or sensor
configuration through the signal connector.
The XTR300 is specified over the −40°C to +85°C
industrial temperature range and for supply voltage up to
40V.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
HART is a registered trademark of the HART Communication Foundation.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2005−2006, Texas Instruments Incorporated
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