0
ACTIVE
Common-mode voltage (max) (V) |
85 |
Common-mode voltage (min) (V) |
-0.1 |
Continuous current (max) (A) |
35 |
Input offset current (±) (max) (mA) |
62.5 |
Input offset current drift (±) (typ) (µA/°C) |
5 |
Gain error (%) |
0.1 |
Supply voltage (max) (V) |
5.5 |
Supply voltage (min) (V) |
2.7 |
Iq (max) (mA) |
1 |
Digital interface |
I2C |
Resolution (Bits) |
16 |
Features |
Alert Function, Bidirectional, Digital Temp Monitor, Integrated Power Accumulator, Integrated Power Monitor, Integrated Shunt, Low-side Capable, Standard precision |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 125 |
VQFN (REM)-14-20 mm² 5 x 4
The INA740B is a digital power monitor with an integrated current sensing element along with a 16-bit delta-sigma ADC specifically designed for current-sensing applications. The device can measure full-scale currents up to ±39.32A with common-mode voltage support from –0.1V to +85V.
The INA740B reports current, bus voltage, die temperature, power, energy and charge accumulation while employing a precision ±0.5% integrated oscillator, all while performing the needed calculations in the background. The integrated temperature sensor is ±2.5°C accurate over the junction temperature range.
The low offset and gain drift design of the INA740B allows the device to be used in precise systems that do not undergo multi-temperature calibration during manufacturing.
The device allows for selectable ADC conversion times from 50µs to 4.12ms as well as sample averaging from 1x to 1024x, which further helps reduce the noise of the measured data.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
