SBOS401C July 2007 – April 2016 INA270A-Q1 , INA271A-Q1
PRODUCTION DATA.
The INA270A-Q1 and INA271A-Q1 (INA27xA-Q1) family of current-shunt monitors with voltage output can sense voltage drops across current shunts at common-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA27xA-Q1 pinouts readily enable filtering.
The INA27xA-Q1 devices are available with two output voltage scales: 14 V/V and 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops.
The INA27xA-Q1 operates from a single 2.7-V to 18-V supply, drawing a maximum of 900 μA of supply current. They are specified over the extended operating temperature range of –40°C to +125°C and are offered in an SOIC-8 package.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
INA270A-Q1 | SOIC (8) | 4.90 mm × 3.91 mm |
INA271A-Q1 |
Changes from B Revision (February 2010) to C Revision
DEVICE | GAIN |
---|---|
INA270A-Q1 | 14 V/V |
INA271A-Q1 | 20 V/V |
PIN | TYPE(1) | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
BUF IN | 4 | AI | Buffer Input. Connect to output of filter from PRE OUT |
GND | 2 | A | Ground |
IN– | 1 | AI | Negative input. Connect to load side of shunt resistor. |
IN+ | 8 | AI | Positive input. Connect to supply side of shunt resistor. |
NC | 7 | — | Not internally connected. Connect to ground. |
PRE OUT | 3 | AO | Pre Amplifier Output. Connect to input of filter to BUF IN. |
OUT | 5 | AO | Output |
VS | 6 | AI | Power supply, 2.7 V to 18 V |