TS1103
A 1µA, 200µV
OS
Bidirectional Precision Current-Sense Amplifier
FEATURES
♦ Ultra-Low Supply Current: 1μA
♦ Wide Input Common Mode Range: +2V to +25V
♦ Low Input Offset Voltage: 200μV (max)
♦ Low Gain Error: 0.6% (max)
♦ Voltage Output
♦ Four Gain Options Available:
TS1103-25: Gain = 25V/V
TS1103-50: Gain = 50V/V
TS1103-100: Gain = 100V/V
TS1103-200: Gain = 200V/V
♦ 6-Lead SOT23 Packaging
DESCRIPTION
The TS1103 is the latest addition to the TS1101
family of bi-directional current-sense amplifiers.
Consuming a very low 1μA supply current, the
TS1103 high-side current-sense amplifiers combine a
200-µV (max) V
OS
and a 0.6% (max) gain error for
cost-sensitive applications. For all high-side
bidirectional
current-sensing
applications,
the
TS1103s are self-powered and feature a wide input
common-mode voltage range from 2V to 25V. A
SIGN comparator digital output is also provided that
indicates the direction of current flow depending on
the external connections to the TS1103’s RS+ and
RS- input terminals.
The SOT23 package makes the TS1103 an ideal
choice for pcb-area-critical, supply-current-conscious,
high-accuracy current-sense applications in all
battery-powered and portable instruments.
All TS1103s are specified for operation over the
-40°C to +105°C extended temperature range.
APPLICATIONS
Notebook Computers
Power Management Systems
Portable/Battery-Powered Systems
Smart Chargers
Smart Phones
TYPICAL APPLICATION CIRCUIT
SIGN Comparator’s Symmetric I
LOAD
Crossover
The Touchstone Semiconductor logo is a registered
trademark of Touchstone Semiconductor, Incorporated.
PART
TS1103-25
TS1103-50
TS1103-100
TS1103-200
GAIN OPTION
25 V/V
50 V/V
100 V/V
200 V/V
Page 1
© 2012 Touchstone Semiconductor, Inc. All rights reserved.
TOUCHSTONE [ TOUCHSTONE SEMICONDUCTOR INC ]
