TS1100 Datasheet, PDF (1/20 Pages) Touchstone Semiconductor Inc – A 1uA, +2V to +25V SOT23 Precision Current-Sense Amplifier

TS1100/01/02/03 Data Sheet
TS1100/01/02/03 Uni- and Bidirectional Current-Sense Amplifiers
The TS1100/01/02/03 Unidirectional and Bidirectional Current Sense Amplifiers con-
sume a very low 0.68 µA supply current.
The TS1100 and TS1101 high-side current sense amplifiers (CSA) combine a 100 µV
(max) input offset voltage (V_OS) and a 0.6% (max) gain error (GE), with both specifica-
tions optimized for any precision current measurement.
The TS1102 and TS1103 CSAs combine a 200 µV (max) V_OS and a 0.6% (max) GE for
cost-sensitive applications.
For all high-side current sensing applications, the TS1100/01/02/03 CSAs are self-pow-
ered and feature a wide input common-mode voltage range from 2 to 27 V.
For the bidirectional CSAs, TS1101 and TS1103, a SIGN comparator digital output is
provided that indicates the direction of current flow. All CSAs are specified for operation
over the –40 °C to +105 °C temperature range.
Applications
• Power Management Systems
• Portable/Battery-Powered Systems
• Smart Chargers
• Battery Monitoring
• Overcurrent and Undercurrent Detection
• Remote Sensing
• Industrial Control
KEY FEATURES
• Low Supply Current
• Current Sense Amplifier: 0.68 µA
• I_VDD: 0.02 µA
• High Side Bidirectional and Unidirectional
Current Sense Amplifier
• Wide CSA Input Common Mode Range: +2
V to +27 V
• Low CSA Input Offset Voltage: 100 µV
(max) (TS1100 and TS1101 Only)
• Low Gain Error: 0.6% (max)
• Four Gain Options Available:
• 25 V/V
• 50 V/V
• 100 V/V
• 200 V/V
• 5-Lead and 6-Lead SOT23 Packaging
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