1?A, SOT23 Precision, Bi-Directional Current-Sense Amplifiers

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TS1100/01/02/03 Uni- and Bidirectional Current-Sense Amplifiers

The TS1100/01/02/03 Unidirectional and Bidirectional Current Sense Amplifiers consume 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 (VOS) and a 0.6% (max) gain error (GE), with both specifications optimized for any precision current measurement.

The TS1102 and TS1103 CSAs combine a 200 µV (max) VOS 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-powered 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.

Symmetry Electronics is an authorized Silicon Labs distributor.


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Low Supply Current
Current Sense Amplifier: 0.68 A
IVDD: 0.02 A
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 V (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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Amplifier Type
Current Sense
Silicon Labs
CMRR - Common Mode Rejection Ratio
120 dB
Development Kit
Silicon Laboratories
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Mounting Style
Number of Channels
1 Channel
Output Type
Pd - Power Dissipation
360 mW
Operational Amplifiers
No Shutdown
Single Supply Voltage
3.6 V
Supply Current per Channel
0.68 uA
Supply Voltage - Max
25 V
Supply Voltage - Min
2 V
Vos - Input Offset Voltage
30 uV


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