Texas Instruments INA220AIDGSR
- Part Number:
- INA220AIDGSR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3251293-INA220AIDGSR
- Description:
- 26V, 12-bit, i2c output current/voltage/power monitor
- ECAD Model:
-
- Datasheet:
- ina220
- Common-mode voltage (max) (V)26
- Common-mode voltage (min) (V)0
- Input offset (±) (max) (V)0.00005
- Input offset drift (±) (typ) (V/°C)0.00000016
- Voltage gain (V/V)0.125
- CMRR (min) (dB)120
- Bandwidth (MHz)0.0055
- Supply voltage (max) (V)5.5
- Supply voltage (min) (V)3
- Iq (max) (mA)1
- Digital interfaceI2C
- FeaturesBi-directional
- Resolution (Bps)12
- RatingCatalog
- Operating temperature range (°C)-40 to 125
The INA220 is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The INA220 monitors both shunt drop and supply voltage. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The I2C- or SMBUS-compatible interface features 16 programmable addresses. The separate shunt input on the INA220 allows it to be used in systems with low-side sensing.
The INA220 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications.
The INA220 senses across shunts on buses that can vary from 0 to 26 V, useful for low-side sensing or CPU power supplies. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA220 operates from –40°C to 125°C.
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