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Table Of Contents

V+

OUT

GND

IN-

IN+

BYPASS

0.01 Fm

0.1 Fm

+2.7V to +26V

REF

Reference

Voltage

Supply Load

SHUNT

Output

SC70

Package

QFN

Package

INA199A1, INA199B1

INA199A2, INA199B2

INA199A3, INA199B3

www.ti.com

SBOS469D –MAY 2009–REVISED NOVEMBER 2012

Voltage Output, High or Low Side Measurement, Bi-Directional Zerø-Drift Series

CURRENT SHUNT MONITOR

Check for Samples: INA199A1, INA199B1, INA199A2, INA199B2, INA199A3, INA199B3

FEATURES

DESCRIPTION

The INA199 series of voltage output current shunt

• WIDE COMMON-MODE RANGE: –0.3V to 26V

monitors can sense drops across shunts at common-

• OFFSET VOLTAGE: ±150μV (Max)

mode voltages from –0.3V to 26V, independent of the

(Enables shunt drops of 10mV full-scale)

supply voltage. Three fixed gains are available:

• ACCURACY

50V/V, 100V/V, and 200V/V. The low offset of the

Zerø-Drift architecture enables current sensing with

– ±1.5% Gain Error (Max over temperature)

maximum drops across the shunt as low as 10mV

– 0.5μV/°C Offset Drift (Max)

full-scale.

– 10ppm/°C Gain Drift (Max)

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

• CHOICE OF GAINS:

power supply, drawing a maximum of 100μA of

– INA199A1/B1: 50V/V

supply current. All versions are specified from –40°C

to +105°C, and offered in both SC70 and thin QFN-

– INA199A2/B2: 100V/V

10 packages.

– INA199A3/B3: 200V/V

• QUIESCENT CURRENT: 100μA (max)

PRODUCT FAMILY TABLE

• PACKAGES: SC70, THIN QFN-10 PRODUCT GAIN R

AND R

INA199A1/B1 50 20kΩ 1MΩ

APPLICATIONS

INA199A2/B2 100 10kΩ 1MΩ

INA199A3/B3 200 5kΩ 1MΩ

• NOTEBOOK COMPUTERS

• CELL PHONES

• TELECOM EQUIPMENT

• POWER MANAGEMENT

• BATTERY CHARGERS

• WELDING EQUIPMENT

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (28 pages)

PAGE 1
QFN Package INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SC70 Package www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 Voltage Output, High or Low Side Measurement, Bi-Directional Zerø-Drift Series CURRENT SHUNT MONITOR Check for Samples: INA199A1, INA199B1, INA199A2, INA199B2, INA199A3, INA199B3 FEATURES DESCRIPTION • • The INA199 series of voltage output current shunt monitors can sense drops across shunts at commonmode voltages from –0.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 ELECTRICAL CHARACTERISTICS Boldface limits apply over the specified temperature range, TA = –40°C to +105°C. At TA = +25°C, VS = +5V, VIN+ = 12V, VSENSE = VIN+ – VIN–, and VREF = VS/2, unless otherwise noted. INA199A1, INA199B1, INA199A2, INA199B2, INA199A3, INA199B3 PARAMETER CONDITIONS MIN Version A Version B CMR VIN+ = 0V to +26V, VSENSE = 0mV 100 VOS VSENSE = 0mV TYP MAX UNIT –0.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com PIN CONFIGURATIONS DCK PACKAGE SC70-6 (TOP VIEW) REF 1 6 OUT GND 2 5 IN- V+ 3 4 IN+ RSW PACKAGE Thin QFN-10 (TOP VIEW) NC REF 8 GND 9 OUT 10 7 4 V+ 6 1 NC (1) (1) (1) 2 5 IN- 4 IN- 3 IN+ IN+ NC = no connection.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 TYPICAL CHARACTERISTICS Performance measured with the INA199A3 at TA = +25°C, VS = +5V, VIN+ = 12V, and VREF = VS/2, unless otherwise noted. COMMON-MODE REJECTION RATIO vs TEMPERATURE 20 1.0 15 0.8 0.6 10 CMRR (mV/V) Offset Voltage (mV) OFFSET VOLTAGE vs TEMPERATURE 5 0 -5 0.4 0.2 0 -0.2 -0.4 -10 -0.6 -15 -0.8 -20 -50 0 -25 25 50 75 100 -1.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) OUTPUT VOLTAGE SWING vs OUTPUT CURRENT (VS = 2.5V) V+ (V+) - 0.25 (V+) - 0.50 (V+) - 0.75 (V+) - 1.00 (V+) - 1.25 (V+) - 1.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 TYPICAL CHARACTERISTICS (continued) Performance measured with the INA199A3 at TA = +25°C, VS = +5V, VIN+ = 12V, and VREF = VS/2, unless otherwise noted. STEP RESPONSE (10mVPP Input Step) 2VPP Output Signal 10mVPP Input Signal Input Voltage (5mV/diV) Referred-to-Input Voltage Noise (200nV/div) Output Voltage (0.5V/diV) 0.1Hz to 10Hz VOLTAGE NOISE (Referred-to-Input) VS = ±2.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) Performance measured with the INA199A3 at TA = +25°C, VS = +5V, VIN+ = 12V, and VREF = VS/2, unless otherwise noted. BROWNOUT RECOVERY 1V/div Supply Voltage Output Voltage 0V VS = 5V, 1kHz Step with VDIFF = 0V, VREF = 2.5V Time (100ms/div) Figure 19.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 APPLICATION INFORMATION BASIC CONNECTIONS Figure 20 shows the basic connections for the INA199. The input pins, IN+ and IN–, should be connected as closely as possible to the shunt resistor to minimize any resistance in series with the shunt resistance. OUT REF GND +2.7V to +26V RSHUNT Supply Reference Voltage R1 R3 R2 R4 Load Output IN- IN+ V+ CBYPASS 0.01mF to 0.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com UNIDIRECTIONAL OPERATION Unidirectional operation allows the INA199 to measure currents through a resistive shunt in one direction. The most frequent case of unidirectional operation sets the output at ground by connecting the REF pin to ground.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 The amount of variance in the differential voltage present at the device input relative to the voltage developed at the shunt resistor is based both on the external series resistance value as well as the internal input resistors, R3 and R4 (or RINT as shown in Figure 21).
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com SHUTTING DOWN THE INA199 SERIES While the INA199 series does not have a shutdown pin, the low power consumption allows powering from the output of a logic gate or transistor switch that can turn on and turn off the INA199 power-supply quiescent current. However, in current shunt monitoring applications.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 REF INPUT IMPEDANCE EFFECTS As with any difference amplifier, the INA199 series common-mode rejection ratio is affected by any impedance present at the REF input. This concern is not a problem when the REF pin is connected directly to most references or power supplies. When using resistive dividers from the power supply or a reference voltage, the REF pin should be buffered by an op amp.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com USING THE INA199 WITH COMMON-MODE TRANSIENTS ABOVE 26V With a small amount of additional circuitry, the INA199 series can be used in circuits subject to transients higher than 26V, such as automotive applications. Use only zener diode or zener-type transient absorbers (sometimes referred to as Transzorbs); any other type of transient absorber has an unacceptable time delay.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 In the event that low-power zeners do not have sufficient transient absorption capability and a higher power transzorb must be used, the most package-efficient solution then involves using a single transzorb and back-toback diodes between the device inputs. This method is shown in Figure 25.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 www.ti.com IMPROVING TRANSIENT ROBUSTNESS Applications involving large input transients with excessive dV/dt above 2kV per microsecond present at the device input pins may cause damage to the internal ESD structures on version A devices. This potential damage is a result of the internal latching of the ESD structure to ground when this transient occurs at the input.
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INA199A1, INA199B1 INA199A2, INA199B2 INA199A3, INA199B3 www.ti.com SBOS469D – MAY 2009 – REVISED NOVEMBER 2012 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision C (August 2012) to Revision D Page • Changed Frequency Response, Bandwidth parameter in Electrical Characteristics table .................................................. 3 • Updated Figure 21 .................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Nov-2013 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.
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PACKAGE MATERIALS INFORMATION www.ti.com 9-Nov-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant INA199A1DCKR SC70 DCK 6 3000 179.0 8.4 2.2 2.5 1.2 4.0 8.0 Q3 INA199A1DCKR SC70 DCK 6 3000 180.0 8.4 2.25 2.4 1.22 4.0 8.0 Q3 INA199A1DCKR SC70 DCK 6 3000 178.0 9.0 2.4 2.5 1.2 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 9-Nov-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant INA199A3DCKT SC70 DCK 6 250 179.0 8.4 2.2 2.5 1.2 4.0 8.0 Q3 INA199A3RSWR UQFN RSW 10 3000 179.0 8.4 1.7 2.1 0.7 4.0 8.0 Q1 INA199A3RSWT UQFN RSW 10 250 179.0 8.4 1.7 2.1 0.7 4.0 8.0 Q1 INA199B1DCKR SC70 DCK 6 3000 178.0 9.0 2.4 2.5 1.2 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 9-Nov-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) INA199A1DCKT SC70 DCK 6 250 180.0 180.0 18.0 INA199A1DCKT SC70 DCK 6 250 195.0 200.0 45.0 INA199A1RSWR UQFN RSW 10 3000 203.0 203.0 35.0 INA199A1RSWT UQFN RSW 10 250 203.0 203.0 35.0 INA199A2DCKR SC70 DCK 6 3000 195.0 200.0 45.0 INA199A2DCKR SC70 DCK 6 3000 202.0 201.0 28.0 INA199A2DCKR SC70 DCK 6 3000 180.0 180.
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