Datasheet

XTR111
www.ti.com SBOS375C –NOVEMBER 2006– REVISED JUNE 2011
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range: T
A
= –40°C to +85°C.
All specifications at T
A
= +25°C, V
VSP
= +24V, R
SET
= 2.0kΩ, REGF connected to REGS; OD = Low, External FET connected,
unless otherwise noted.
XTR111
PARAMETER CONDITIONS MIN TYP MAX UNIT
TRANSMITTER
Transfer Function I
OUT
= 10 × V
VIN
/R
SET
Specified Output Current I
OUT
Specified Performance
(1)
0.1 25 mA
Derated Performance
(2)
0 to 36 mA
Current Limit for Output Current 42 ± 6 mA
Nonlinearity, I
OUT
/I
SET
(2) (3)
0.1mA to 25mA 0.002 0.02 % of Span
0.1mA to 36mA 0.004 % of Span
Offset Current I
OS
I
OUT
= 4mA
(1)
0.002 0.02 % of Span
vs Temperature 0.0002 0.001 % of Span/°C
vs Supply, V
VSP
8V to 40V Supply 0.0001 0.005 % of Span/V
Span Error, I
OUT
/I
SET
(2)
0.1mA to 25mA 0.015 0.1 % of Span
vs Temperature
(1) (2)
5 ppm/°C
vs Supply
(1)
0.0001 % of Span/V
Output Resistance From Drain of Q
EXT
(4)
> 1 GΩ
Output Leakage OD = high < 1 μA
Input Impedance (VIN) 2.4/30 GΩ/pF
Input Bias Current (VIN) I
B
15 25 nA
Input Offset Voltage
(2)
V
OS
V
VIN
= 20mV 0.3 1.5 mV
vs Temperature 1.5 μV/°C
Input Voltage Range
(5)
V
VIN
0 to 12 V
Noise, Referred to Input
(2)
0.1Hz to 10Hz; I
OUT
= 4mA 2.5 μV
PP
See Dynamic Performance
Dynamic Response
Section
(1) Includes input amplifier, but excludes R
SET
tolerance. Offset current is the deviation from the current ratio of I
SET
to I
IS
(output current).
(2) See Typical Characteristics.
(3) Span is the change in output current resulting from a full-scale change in input voltage.
(4) Within compliance range limited by (+V
VSP
– 2V) +V
DS
required for linear operation of Q
EXT
.
(5) See Application Information, Input Voltage section.
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