INA21X中文资料德州仪器数据手册PDF规格书

1 Features

• Updated format to match new TI layout and flow.

Tables, figures and cross-references use a new

numbering sequence throughout the document.

Wide Common-Mode Range: –0.3 V to 26 V

• Offset Voltage: ±35 μV (Maximum, INA210)

(Enables Shunt Drops of 10-mV Full-Scale)

• Accuracy:

– Gain Error (Maximum Over Temperature):

• ±0.5% (Version C)

• ±1% (Versions A and B)

– 0.5-μV/°C Offset Drift (Maximum)

– 10-ppm/°C Gain Drift (Maximum)

• Choice of Gains:

– INA210: 200 V/V

– INA211: 500 V/V

– INA212: 1000 V/V

– INA213: 50 V/V

– INA214: 100 V/V

– INA215: 75 V/V

• Quiescent Current: 100 μA (Maximum)

• SC70 and Thin UQFN Packages: All Models

2 Applications

• Notebook Computers

• Cell Phones

• Telecom Equipment

• Power Management

• Battery Chargers

3 Description

The INA21x are voltage-output, current-shunt

monitors (also called current-sense amplifiers)

that are commonly used for overcurrent

protection, precision-current measurement for system

optimization, or in closed-loop feedback circuits. This

series of devices can sense drops across shunts

at common-mode voltages from –0.3 V to 26 V,

independent of the supply voltage. Six fixed gains

are available: 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500

V/V, or 1000 V/V. The low offset of the zero-drift

architecture enables current sensing with maximum

drops across the shunt as low as 10-mV full-scale.

These devices operate from a single 2.7-V to 26-V

power supply, drawing a maximum of 100 μA of

supply current. All versions are specified over the

extended operating temperature range

(–40°C to +125°C), and offered in SC70 and UQFN

packages.