INA138是TI公司的一款电流分流模拟输出产品，INA138是36V、高侧、电流输出电流分流监控器，本页介绍了INA138的产品说明、应用、特性等，并给出了与INA138相关的TI元器件型号供参考。
INA138 - 36V、高侧、电流输出电流分流监控器 - 电流分流模拟输出 - 电流感应放大器 - TI公司（Texas Instruments，德州仪器）
- Complete Unipolar High-Side Current Measurement Circuit
- Wide Supply and Common-Mode Range
- INA138: 2.7 V to 36 V
- INA168: 2.7 V to 60 V
- Independent Supply and Input Common-Mode Voltages
- Single Resistor Gain Set
- Low Quiescent Current (25 µA Typical)
- Wide Temperature Range: –40°C to +125°C
- 5-Pin SOT-23 Package
- Current Shunt Measurement:
- Automotive, Telephone, Computers
- Portable and Battery-Backup Systems
- Battery Chargers
- Power Management
- Cell Phones
- Precision Current Source
The INA138 and INA168 are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, low quiescent current, and tiny SOT-23 packaging enable use in a variety of applications.
Input common-mode and power-supply voltages are independent and can range from 2.7 V to 36 V for the INA138 and 2.7 V to 60 V for the INA168. Quiescent current is only 25 µA, which permits connecting the power supply to either side of the current measurement shunt with minimal error.
The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting.
Both the INA138 and INA168 are available in SOT23-5 and are specified for the –40°C to 125°C temperature range.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| INA138 | SOT-23 (5) | 18.00 mm × 18.00 mm |
| INA168 | SOT-23 (5) | 18.00 mm × 18.00 mm |
