Texas Instruments INA210-215EVM Manual de usuario

SBOU164–July 2016

INA210-215EVM User's Guide

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User's Guide

SBOU164–July 2016

INA210-215EVM User's Guide

This user’s guide describes the characteristics, operation, and use of the INA210-215EVM evaluation

module (EVM). This EVM is designed to evaluate the performance of the INA210-215 voltage output

current shunt monitors in a variety of configurations. This document also includes a schematic, reference

printed circuit board (PCB) layouts, and a complete bill of materials. NOTE: This user guide is for the new

revision of the EVM board. For users of the original-version EVM board, see the previous EVM user's

guide, SBOU065A.

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Contents

1 Overview...................................................................................................................... 3

2 INA210-215EVM Hardware ................................................................................................ 3

3 Quick Start Setup and Use ................................................................................................. 4

4 INA210-215EVM Circuit..................................................................................................... 4

5 Reference Voltage Setup................................................................................................... 5

6 INA210-215EVM Schematic and PCB Layout........................................................................... 7

7 Bill of Materials ............................................................................................................. 10

List of Figures

1 INA210-215EVM Schematic................................................................................................ 7

2 INA210-215EVM Top Overlay ............................................................................................. 8

3 INA210-215EVM Top Solder Mask........................................................................................ 8

4 INA210-215EVM Top Layer................................................................................................ 8

5 INA210-215EVM Bottom Layer ........................................................................................... 8

6 INA210-215EVM Bottom Solder Mask.................................................................................... 8

7 INA210-215EVM Drill Drawing............................................................................................. 8

8 INA210-215EVM Board Dimensions ...................................................................................... 9

List of Tables

1 INA210-215 Device Summary ............................................................................................. 3

2 INA210-215EVM Kit Contents ............................................................................................. 3

3 Related Documentation..................................................................................................... 3

4 REF Voltage Setup.......................................................................................................... 6

5 Bill of Materials ............................................................................................................. 10

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Overview

SBOU164–July 2016

INA210-215EVM User's Guide

1 Overview

The INA210-215 devices are voltage output, high-side measurement, bi-directional, zero-drift current shunt

monitors. This family of devices has gains that range from 50 V/V to 1000 V/V. The voltage developed

across the device inputs is amplified by the corresponding gain of the specific device and is presented at

the output pin. These devices can sense voltage drops across shunts at common-mode voltages from

–0.3 V to 26 V, independent of supply voltages. These devices operate with supply voltages between 2.7

V and 26 V and draw a maximum of 100 μA. The low offset of the zero-drift architecture enables current

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

The INA210-215 devices are currently available in an SC70 surface-mount package. Table 1 summarizes

the available device options.

Table 1. INA210-215 Device Summary

Product Gain

INA210 200

INA211 500

INA212 1000

INA213 50

INA214 100

INA215 75

1.1 INA210-215 Kit Contents

Table 2 summarizes the contents of the INA210-215EVM kit. Contact the Texas Instruments Product

Information Center nearest you if any component is missing. It is highly recommended that you also check

the INA210 device product folder on the TI web site at www.ti.com for any further information regarding

this product.

Table 2. INA210-215EVM Kit Contents

Item Quantity

INA210-215 test board 1

1.2 Related Documentation From Texas Instruments

This document provides information regarding Texas Instruments' integrated circuits used in the assembly

of the INA210-215EVM. This user's guide is available from the TI web site under literature number

SBOU164. Any letter appended to the literature number corresponds to the document revision that is

current at the time of the writing of this document. Newer revisions are available from www.ti.com, or call

the Texas Instruments' Literature Response Center at (800) 477-8924 or the Product Information Center

at (972) 644-5580. When ordering, identify the document by both title and literature number.

Table 3. Related Documentation

Document Literature Number

INA21x product data sheet SBOS437

2 INA210-215EVM Hardware

The INA210-215EVM is intended to provide basic functional evaluation of the INA210-215 device family.

The fixture layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic

compatibility (EMC) testing. The INA210-215EVM consists of one PCB with an option to cut out six

individual PCBs, one for each of the six devices (INA210, INA211, INA212, INA213, INA214, and INA215).

Each of the PCB cutouts consists of the INA21x device (where x is 0, 1, 2, 3, 4, and 5) and test points for

external hardware connections.

INA210-215EVM Hardware

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2.1 Features

The INA210-215EVM printed circuit board (PCB) provides the following features:

• Evaluation of all gain options through provided device boards

• Ease of access to device pins with test points

• Space for optional input filtering capacitors and resistors

• Multiple input signal options

Refer to the INA210-215 product data sheet (SBOS437) for comprehensive information about the INA210-

215 family of devices.

3 Quick Start Setup and Use

Follow these procedures to set up and use the INA210-215EVM. For the following instructions, x = 0 to 5.

Step 1. Connect an external dc supply voltage between 2.7-V and 26-V to the V+ test point TPx01 or

TPx11, and connect ground reference of that supply to the GND test point TPx02 or TPx12.

The INA210-215 device output voltage is limited to 50 mV above ground to 200 mV below the

supply level.

Step 2. The REF pin is connected to GND in the default board. The voltage applied at the reference

input can vary depending on how the device is going to be used. Further details regarding the

use of the reference voltage are discussed later in this document.

Step 3. Connect the input.

3.1 Measurements

The INA210-215EVM allows the user to either simulate the voltage developed across a sense resistor

based on a given set of system conditions, or to connect it remotely to an existing shunt already included

in an example application.

To configure a measurement evaluation without a shunt, follow these procedures:

1. Connect a differential voltage to the IN+ (TPx03 or TPx13) and IN– (TPx04 or TPx14) test points. With

the reference voltage set at ground, ensure that the IN+ pin is the more positive of the two inputs.

2. Measure the output voltage at the OUT test point (TPx06 or TPx16).

NOTE: The output voltage is equal to the gain of the device multiplied by the differential voltage

measured directly at the device input pins.

4 INA210-215EVM Circuit

This section summarizes the INA210-215EVM components. For the following instructions, x = 0 to 5.

4.1 Rx05, Rx06, Cx03

Rx05 and Rx06 are factory-installed 0-Ωresistors. These resistors, in combination with Cx03, form an

input filter. These locations allow for 0805 surface-mount package size. Additional information regarding

the use of input filtering is provided in the INA210-215 product data sheet (SBOS437).

4.2 Cx05

Cx05 are 0.1-μF supply bypass capacitors.

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INA210-215EVM Circuit

SBOU164–July 2016

INA210-215EVM User's Guide

4.3 Ux01

Ux01 is the location for the test device. Six device boards are supplied with the INA210-215EVM board.

Each board is populated with one of the available device gains. This option allows users to test the

devices and determine the gain setting that is best suited for a given application.

Here is a list of the factors involved in selecting the appropriate device:

• The INA210-215 devices are identical with the exception of different gain settings.

• The differential input voltage is either applied across the inputs or developed based on the load current

that flows through the shunt resistor.

• The limiting factor that requires attention to be given to device selection is the output voltage.

• The selected device must allow the output voltage to remain within the acceptable range after the

developed input voltage is amplified by the respective device gain. The output voltage must remain

with the range of 50 mV above ground to 200 mV below the supply voltage.

• An output below the minimum allowable output requires the selection of a device with a higher gain.

Likewise, an output above the maximum allowable output requires the selection of a device with a

lower gain.

4.4 Voltage Inputs

The IN+ (TPx03 or TPx13) and IN– (TPx04 or TPx14) inputs accept a differential voltage that is amplified

by the selected device gain and is presented at the OUT test point (TPx06 or TPx16). These inputs could

also be used to connect the differential voltage developed across an external shunt in an existing circuit.

The acceptable differential input voltage range and polarity are determined by the supply voltage,

reference voltage, and gain of the selected device.

5 Reference Voltage Setup

The INA210-215 devices allow for the use of an external reference. This reference determines how the

output responds to certain input conditions. The reference also allows these devices to be used in both

unidirectional and bi-directional applications.

5.1 Unidirectional Mode

Unidirectional refers to a load current that flows in only one direction. For unidirectional applications, the

reference voltage can be set to ground or to 5 V. If the reference is set to ground, the output is set at near

ground with no input voltage, and responds to input voltages that are positive with respect to IN– /Load. If

the reference is set to 5 V, the output is set near 5 V with no input voltage, and responds to input voltages

that are negative with respect to IN– /Load.

5.2 Bi-Directional Mode

Bi-directional refers to a load current that flows in both directions. For bi-directional applications, the

reference voltage can be set anywhere within the 0-V to 5-V range specified for the reference input. The

voltage applied to the reference pin establishes the output voltage of the device with no input voltage. The

output voltage is limited by the supply voltage, so there is a greater available range for positive input

voltages than negative voltages because the reference voltage is limited to the range of 0 V to 5 V.

The maximum range for the output of this device to accommodate a bi-directional application involves

applying 5 V to the reference pin and a supply voltage of 18 V. This configuration allows for a maximum

output voltage range of –4.95 V/20.8 V about the 5-V reference.

Reference Voltage Setup

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5.3 REF Pin Configuration

The REF test point (Tx05 or TPx15) allows the user to configure the INA210-215EVM for either

unidirectional or bi-directional operation. The INA210-215EVM has an external circuit that allows the user

to connect different voltages to the REF pin. Table 4 summarizes the possible configurations.

In Table 4, x = 1 to 3. External components are needed and are listed in Table 4 and Table 5.

Table 4. REF Voltage Setup

Buffer (Not Populated) Buffer (Populated)

Rx01 = disconnected

Rx02 = 0 Ω

Rx03 = 0 ΩREF = GND (default) Rx01 = disconnected

Rx02 = 0 Ω

Rx03 = disconnected REF = GND

Rx01 = disconnected

Rx02 = disconnected

Rx03 = 0 ΩREF = Voltage selected by user Rx01 = disconnected

Rx02 = disconnected

Rx03 = disconnected REF = Voltage selected by user

Rx01 = 0 Ω

Rx02 = disconnected

Rx03 = 0 ΩREF = V+ Rx01 = 0 Ω

Rx02 = disconnected

Rx03 = disconnected REF = V+

Rx01 = 5k Ω

Rx02 = 5k Ω

Rx03 = 0 ΩREF = V+/ 2 Rx01 = 5k Ω

Rx02 = 5k Ω

Rx03 = disconnected REF = V+/ 2

V+

V-

U102

TS321IDBVR

DNP

TP101

DNP

TP102

DNP

TP103

DNP

TP104

DNP

TP105

DNP

TP106

DNP

TP111

TP112

TP113

TP114

V1+

GND1

TP115

V1+

GND1

1.0k

R101

DNP VREF1

R103

R104

0.1µF

C102

DNP

0.1µF

C101

0.1µF

C103

DNP

VREF1

GND1

R105

R106

0.1µF

C104

DNP

R107

GND1

TP116

R108

DNP

V+

V-

U202

TS321IDBVR

DNP

TP201

DNP

TP202

DNP

TP203

DNP

TP204

DNP

TP205

DNP

TP206

DNP

TP211

TP212

TP213

TP214

V2+

GND2

TP215

1.0k

R201

DNP

R203

R204

0.1µF

C202

DNP

0.1µF

C201

0.1µF

C203

DNP

VREF2

R205

R206

0.1µF

C204

DNP

R207 TP216

R208

DNP

VREF2

V2+

GND2

GND2 GND2

GND2

GND 2

IN+

IN-

REF

V+

3OUT 6

U301

INA213BIDCKR

GND 2

IN+

IN-

REF

V+

3OUT 6

U501

INA215BIDCKR

GND 2

IN+

IN-

REF

V+

3OUT 6

U001

INA210BIDCKR

V+

V-

U002

TS321IDBVR

DNP

TP001

DNP

TP002

DNP

TP003

DNP

TP004

DNP

TP005

DNP

TP006

DNP

TP011

TP012

TP013

TP014

V0+

GND0

TP015

V0+

GND0

1.0k

R001

DNP VREF0

R003

R004

0.1µF

C002

DNP

0.1µF

C001

0.1µF

C003

DNP

VREF0

GND0

R005

R006

0.1µF

C004

DNP

R007

GND0

TP016

R008

DNP

V+

V-

U302

TS321IDBVR

DNP

TP301

DNP

TP302

DNP

TP303

DNP

TP304

DNP

TP305

DNP

TP306

DNP

TP311

TP312

TP313

TP314

V3+

GND3

TP315

V3+

1.0k

R301

DNP VREF3

R303

R304

0.1µF

C302

DNP

0.1µF

C301

0.1µF

C303

DNP

VREF3

R305

R306

0.1µF

C304

DNP

R307 TP316

R308

DNP

GND3

V+

V-

U402

TS321IDBVR

DNP

TP401

DNP

TP402

DNP

TP403

DNP

TP404

DNP

TP405

DNP

TP406

DNP

TP411

TP412

TP413

TP414

V4+

GND4

TP415

V4+

1.0k

R401

DNP VREF4

R403

R404

0.1µF

C402

DNP

0.1µF

C401

0.1µF

C403

DNP

VREF4

R405

R406

0.1µF

C404

DNP

R407 TP416

R408

DNP

GND4

GND4GND4

GND4

V+

V-

U502

TS321IDBVR

DNP

TP501

DNP

TP502

DNP

TP503

DNP

TP504

DNP

TP505

DNP

TP506

DNP

TP511

TP512

TP513

TP514

V5+

TP515

V5+

1.0k

R501

DNP VREF5

R503

R504

0.1µF

C502

DNP

0.1µF

C501

0.1µF

C503

DNP

VREF5

R505

R506

0.1µF

C504

DNP

R507 TP516

R508

DNP

GND5

GND5GND5

GND5

GND 2

IN+

IN-

REF

V+

3OUT 6

U101

INA211BIDCKR

R002

R102

R202

R502

R402

R302

GND 2

IN+

IN-

REF

V+

3OUT 6

U201

INA212BIDCKR

GND 2

IN+

IN-

REF

V+

3OUT 6

U401

INA214BIDCKR

0.1µF

C305

GND3

0.1µF

C005

0.1µF

C105

0.1µF

C205

GND2

0.1µF

C505

0.1µF

C405

GND0 GND1

GND4 GND5

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INA210-215EVM Schematic and PCB Layout

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INA210-215EVM User's Guide

6 INA210-215EVM Schematic and PCB Layout

NOTE: Board layouts are not to scale. These figures are intended to show how the board is laid out;

they are not intended to be used for manufacturing INA210-215EVM PCBs.

6.1 Schematic

Figure 1 shows the schematic for the INA210-215EVM PCB.

Figure 1. INA210-215EVM Schematic

INA210-215EVM Schematic and PCB Layout

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6.2 PCB Layout

Figure 2 through Figure 8 illustrate the PCB layout for the INA210-215EVM.

Figure 2. INA210-215EVM Top Overlay Figure 3. INA210-215EVM Top Solder Mask

Figure 4. INA210-215EVM Top Layer Figure 5. INA210-215EVM Bottom Layer

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INA210-215EVM Schematic and PCB Layout

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INA210-215EVM User's Guide

Figure 6. INA210-215EVM Bottom Solder Mask Figure 7. INA210-215EVM Drill Drawing

Figure 8. INA210-215EVM Board Dimensions

Bill of Materials

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7 Bill of Materials

Table 5 provides the parts list for the INA210-215EVM.

Table 5. Bill of Materials

Quantity RefDes Value Description Part Number MFR

12 C001, C005,

C101, C105,

C201, C205,

C301, C305,

C401, C405,

C501, C505

0.1uF CAP, CERM, 0.1 µF, 50 V, +/- 5%, X7R, 0805 08055C104JAT2A AVX

36 R002, R003,

R004, R005,

R006, R007,

R102, R103,

R104, R105,

R106, R107,

R202, R203,

R204, R205,

R206, R207,

R302, R303,

R304, R305,

R306, R307,

R402, R403,

R404, R405,

R406, R407,

R502, R503,

R504, R505,

R506, R507

0 RES, 0, 5%, 0.125 W, 0805 CRCW08050000Z0EA Vishay-Dale

36 TP011, TP012,

TP013, TP014,

TP015, TP016,

TP111, TP112,

TP113, TP114,

TP115, TP116,

TP211, TP212,

TP213, TP214,

TP215, TP216,

TP311, TP312,

TP313, TP314,

TP315, TP316,

TP411, TP412,

TP413, TP414,

TP415, TP416,

TP511, TP512,

TP513, TP514,

TP515, TP516

SMT Test Point, Miniature, SMT 5015 Keystone

1 U001 Voltage Output, Low- or High-Side Measurement,