The INA28x family includes the INA282, INA283, INA284, INA285, and INA286 devices. These devices are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from –14 V to +80 V, independent of the supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale.
These current sense amplifiers operate from a single +2.7-V to +18-V supply, drawing a maximum of 900 μA of supply current. These devices are specified over the extended operating temperature range of –40°C to +125°C, and offered in SOIC-8 and VSSOP-8 packages.
ORDER NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
INA28x | SOIC (8) | 4.90 mm x 3.91 mm |
VSSOP (8) | 3.00 mm x 3.00 mm |
Changes from B Revision (September 2012) to C Revision
Changes from A Revision (July 2010) to B Revision
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | –IN | Analog input | Connect this pin to load side of shunt resistor. |
2 | GND | Analog | Ground |
3 | REF2 | Analog input | Reference voltage, 0 V to V+. See Reference Pin Connection Options section for connection options. |
4 | NC | — | This pin is not internally connected. Either float or connect this pin to GND. |
5 | OUT | Analog output | Output voltage |
6 | V+ | Analog | Power supply, 2.7 V to 18 V |
7 | REF1 | Analog input | Reference voltage, 0 V to V+. See Reference Pin Connection Options section for connection options. |
8 | +IN | Analog input | Connect this pin to supply side of shunt resistor. |