Product details

Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 50, 100 Input offset drift (+/-) (Typ) (uV/C) 0.16 Gain (V/V) 1, 0.5, 0.25, 0.125 Gain error (%) 0.5, 0.3 Gain error drift (+/-) (Max) (ppm/°C) 83 CMRR (Min) (dB) 120 Bandwidth (kHz) 5.5 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 1 Digital interface I2C, SMBus Features Bi-directional, Low-side Capable, Programmable Gain Resolution (Bits) 12 Rating Catalog Operating temperature range (C) -40 to 125
Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 50, 100 Input offset drift (+/-) (Typ) (uV/C) 0.16 Gain (V/V) 1, 0.5, 0.25, 0.125 Gain error (%) 0.5, 0.3 Gain error drift (+/-) (Max) (ppm/°C) 83 CMRR (Min) (dB) 120 Bandwidth (kHz) 5.5 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 1 Digital interface I2C, SMBus Features Bi-directional, Low-side Capable, Programmable Gain Resolution (Bits) 12 Rating Catalog Operating temperature range (C) -40 to 125
VSSOP (DGS) 10 9 mm² 3 x 3
  • High- or Low-Side Sensing
  • Senses Bus Voltages from 0 V to 26 V
  • Reports Current, Voltage, and Power
  • 16 Programmable Addresses
  • High Accuracy: 0.5% (Maximum) Over
    Temperature (INA220B)
  • User-Programmable Calibration
  • Fast (2.56-MHz) I2C- or SMBUS-Compatible
    Interface
  • VSSOP-10 Package
  • APPLICATIONS
    • Servers
    • Telecom Equipment
    • Notebook Computers
    • Power Management
    • Battery Chargers
    • Automotive
    • Power Supplies
    • Test Equipment

All other trademarks are the property of their respective owners

  • High- or Low-Side Sensing
  • Senses Bus Voltages from 0 V to 26 V
  • Reports Current, Voltage, and Power
  • 16 Programmable Addresses
  • High Accuracy: 0.5% (Maximum) Over
    Temperature (INA220B)
  • User-Programmable Calibration
  • Fast (2.56-MHz) I2C- or SMBUS-Compatible
    Interface
  • VSSOP-10 Package
  • APPLICATIONS
    • Servers
    • Telecom Equipment
    • Notebook Computers
    • Power Management
    • Battery Chargers
    • Automotive
    • Power Supplies
    • Test Equipment

All other trademarks are the property of their respective owners

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.

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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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

INA220EVM — INA220 Evaluation Module

The INA220EVM key hardware consists of two boards, INA220 Test Board and USB DIG Platform. The INA220 Test Board contains the INA220, terminal strips for external connections, and several jumpers for device configuration. The USB DIG Platform contains an 8052 microcontroller with a built in USB (...)

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Code example or demo

INA220EVM Source Code

SBOC298.ZIP (8209 KB)
GUI for evaluation module (EVM)

INA220EVM Software

SBOC297.ZIP (3637 KB)
Simulation model

INA220 IBIS Model (Rev. A)

SBOM419A.ZIP (38 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Calculation tool

Power Monitor Tool

SBOR021.ZIP (266 KB)
Schematic

INA220EVM Schematic

SBOR007.ZIP (47 KB)
Package Pins Download
VSSOP (DGS) 10 View options

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