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See Technical Specifications

INA219AIDR

INA219AIDR is a small amplifier integrated circuit

Manufacturer:

Texas Instruments
Mfr.Part #:

INA219AIDR
Datasheet:

INA219AIDR Datasheet (PDF)
Common-mode voltage (max) (V):

26
Common-mode voltage (min) (V):

0
Input offset (±) (max) (µV):

50, 100
Input offset drift (±) (max) (µV/°C):

0.5
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INA219AIDR General Description

The INA219 is a current shunt and power monitor with an I²C- or SMBUS-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts of current in amperes. An additional multiplying register calculates power in watts. The I²C- or SMBUS-compatible interface features 16 programmable addresses.

The INA219 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications.

The INA219 senses across shunts on buses that can vary from 0 to 26 V. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA219 operates from –40°C to 125°C.

Key Features

Senses Bus Voltages from 0 to 26 V
Reports Current, Voltage, and Power
16 Programmable Addresses
High Accuracy: 0.5% (Maximum) Over Temperature (INA219B)
Filtering Options
Calibration Registers
SOT23-8 and SOIC-8 Packages

Application

Battery Management Systems: Used to monitor battery charging and discharging currents in portable devices.
Power Supplies and Converters: Employed in power supply units to monitor voltage and current.
Energy Measurement Systems: Utilized in energy measurement applications for accurate power consumption monitoring.
Industrial Automation: Integrated into industrial systems for current monitoring in motors, actuators, and machinery.
Smart Home Devices: Applied in smart home systems for monitoring power consumption of appliances.

Specifications

Common-mode voltage (max) (V)	26	Common-mode voltage (min) (V)	0
Input offset (±) (max) (µV)	50, 100	Input offset drift (±) (max) (µV/°C)	0.5
Input offset drift (±) (typ) (µV/°C)	0.1	Voltage gain (V/V)	0.125, 0.25, 0.5, 1
CMRR (min) (dB)	100	Bandwidth (kHz)	5.5
Supply voltage (max) (V)	5.5	Supply voltage (min) (V)	3
Iq (max) (mA)	1	Digital interface	I2C, SMBus
Gain error (%)	0.3, 0.5	Gain error drift (±) (max) (ppm/°C)	83, 167
Features	Bidirectional, Intergrated Power Monitor, Programmable Gain	Number of channels	1
Resolution (Bits)	12	Power measurement accuracy (%)	0.8, 1
Rating	Catalog	Operating temperature range (°C)	-40 to 125
feature-type		feature-switching-frequency-khz
feature-input-voltage-v		feature-output-current-a
feature-minimum-operating-supply-voltage-v		feature-maximum-operating-supply-voltage-v
feature-maximum-supply-current-ma		feature-maximum-power-dissipation-mw
feature-packaging	Tape and Reel	feature-rad-hard
feature-pin-count	8	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc	Yes
feature-svhc-exceeds-threshold	No