Texas Instruments NA210-214EVM User Manual
User's Guide
SBOU065 – August 2008
INA210-214EVM User's Guide
This user’s guide describes the characteristics, operation, and use of the INA210-214EVM evaluation
module (EVM). This EVM is designed to evaluate the performance of the INA210-214 voltage output
current shunt monitors in a variety of configurations. The EVM layout and design are flexible enough to
allow evaluation of a wide range of applications. This document also includes a schematic, reference
printed circuit board (PCB) layouts, and a complete bill of materials.
Contents
1 Introduction and Overview .................................................................................................. 2
2 Quick Start Setup and Use ................................................................................................. 4
3 INA210-214EVM Circuit ..................................................................................................... 6
4 Reference Voltage Setup.................................................................................................. 11
5 INA210-214EVM Schematic and PCB Layout .......................................................................... 12
6 Bill of Materials ............................................................................................................. 14
List of Figures
1 Hardware Included with the INA210-214EVM ........................................................................... 3
2 Measurement with Shunt ................................................................................................... 4
3 Measurement without Shunt ................................................................................................ 5
4 TO-247 Package In R1 ..................................................................................................... 6
5 CS3 Package in R1 .......................................................................................................... 6
6 TO-126 Package in R1 ...................................................................................................... 7
7 TO-220 Package in R1 ...................................................................................................... 7
8 Radial Package in R2 ....................................................................................................... 8
9 U1 Footprint ................................................................................................................. 10
10 U1 Populated with DIP Board ............................................................................................ 10
11 INA210-214EVM Schematic .............................................................................................. 12
12 INA210-214EVM PCB ..................................................................................................... 13
All trademarks are the property of their respective owners.
SBOU065 – August 2008 INA210-214EVM User's Guide 1
Submit Documentation Feedback
Introduction and Overview
1 Introduction and Overview
1.1 INA210-214
The INA210-214 devices are voltage output, high-side measurement, bi-directional, zero-drift current shunt
monitors. This family of devices has gains that range from 50V/V to 1000V/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
–0.3V to 26V, independent of supply voltages. These devices operate with supply voltages between 2.7V
and 26V and draw a maximum of 100 µ A. The low offset of the zero-drift architecture enables current
sensing with maximum drops across the shunt as low as 10mV full-scale.
The INA210-214 devices are currently available in an SC70 surface-mount package. Table 1 summarizes
the available device options.
www.ti.com
Table 1. INA210-214 Device Summary
Product Gain
INA210 200
INA211 500
INA212 1000
INA213 50
INA214 100
1.2 INA210-214EVM
The INA210-214EVM is intended to provide basic functional evaluation of this 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 layout of the INA210-214EVM printed circuit board (PCB) is designed to provide the following
features:
• Easy handling of the small package; a mechanical drawing of the recommended land pattern is found
at the end of the product data sheet .
• Easy access to all device pins
• Space for optional input filtering capacitors and resistors as well as a prototype area for additional user
defined circuitry
• Space for shunt resistors of various footprints
• Multiple input signal options
• Evaluation of all gain options through provided device boards as well as a location to solder a test
device directly onto the board
The INA210-214EVM allows the user to install a shunt resistor, and then connect both the common-mode
voltage and load to develop the input voltage, or omit the shunt resistor and apply a differential voltage
directly to the device input. This flexibility allows a user to test the device operation in a simulated manner
as well as an actual application.
Refer to the INA210-214 product data sheet for comprehensive information about the INA210-214 family
of devices.
INA210-214EVM User's Guide2 SBOU065 – August 2008
Submit Documentation Feedback
www.ti.com
1.3 Hardware Included
The initial release of this evaluation board and user's guide may precede the actual release of some
members of the INA210-214 device family. As additional devices with the family are released, the
INA210-214EVM evaluation board will be associated with them. A test fixture populated with an INA210 is
provided in all INA210-214EVMs delivered, as Figure 1 shows.
Introduction and Overview
Figure 1. Hardware Included with the INA210-214EVM
The INA210-214EVM kit is shipped with the following items:
• INA210-214EVM PCB
• Five populated test boards (INA210, INA211, INA212, INA213, INA214)
If any of these items are missing or damaged, please contact the Texas Instruments Product Information
Center nearest you to inquire about a replacement.
SBOU065 – August 2008 INA210-214EVM User's Guide 3
Submit Documentation Feedback
+
+
Load
Load
V+
C
1
R
4
R
1 2
/R
R
3
I
S
V
OUT
V
CM
V
IN
REF
INA210-214EVM
INA210
DIP
Quick Start Setup and Use
2 Quick Start Setup and Use
Follow these procedures to set up and use the INA210-214EVM.
Step 1. Insert the device board to be evaluated into the U1 location. The U1 location allows the user
to either evaluate one of the provided device boards or install the test device directly on the
surface-mount pads in the U1 footprint.
Step 2. Connect an external dc supply voltage between 2.7V and 26V to the V+ terminal referenced
to the GND terminal of T3. The INA210-214 device output voltage is limited to 50mV above
ground to 200mV below the supply level.
Step 3. Connect the REF terminal of T3 to ground. The voltage applied at the reference input can
vary depending on how the device is to be used. Further details regarding the use of the
reference voltage are discussed later in this document.
Step 4. Connect the input.
2.1 Measurement with Shunt
This connection method allows the user to install a shunt resistor on the EVM and connect the
common-mode voltage and load to incorporate the test device directly into a sample application, as
Figure 2 shows. To configure a measurement evaluation with a shunt, follow these procedures.
1. Install a shunt resistor into the R2 location. If not using a surface-mount or through-hole shunt, please
refer to Section 3.1 for a summary of R1 component specifications.
2. Connect the common-mode voltage to the V
3. Connect load to the Load terminal of T1.
terminal of T1.
IN
www.ti.com
Figure 2. Measurement with Shunt
INA210-214EVM User's Guide4 SBOU065 – August 2008
Submit Documentation Feedback
+
+
V+
C
1
R
4
R
3
V
OUT
V
CM
V
DIFF
V
IN+
V
IN-
REF
INA210-214EVM
INA210
DIP
+
www.ti.com
2.2 Measurement without Shunt
This connection method allows the user to either simulate the voltage developed across a sense resistor
based on a given set of system conditions, or to connect the INA210-214EVM remotely to an existing
shunt already included in an example application. Figure 3 illustrates a measurement configuration without
a shunt.
To configure a measurement evaluation without a shunt, follow these procedures.
Quick Start Setup and Use
1. Connect a differential voltage to the V
ground, ensure that the V
terminal is the more positive of the two inputs.
IN+
2. Measure the output voltage at the V
IN+
OUT
and V
terminal of T2.
terminals of T2. With the reference voltage set at
IN–
Figure 3. Measurement without Shunt
Note: The output voltage is equal to the gain of the device multiplied by the differential voltage
measured directly at the device input pins.
SBOU065 – August 2008 INA210-214EVM User's Guide 5
Submit Documentation Feedback
Loading...