MAXIM MAX5216LPT

MAX5216LPT Evaluation Kit
General Description
The MAX5216LPT evaluation kit (EV kit) enables evaluation of the loop-powered 4–20mA current-loop transmitter with the fault current-limiting capabilities and Highway
Addressable Remote Transducer (HART) modem
input/output ready, which utilizes the MAX5216 singlechannel, low-power, buffered-output, 3-wire SPI interface 16-bit DAC, the MAX6133 3ppm/°C, low-power voltage reference, the MAX9620 single-channel, zero-drift,
high-efficiency op amp with RRIO, and the MAX15007
40V, ultra-low quiescent current LDO. The EV kit also
includes Windows XP®, Windows Vista® and Windows®
7-compatible software that provides a simple graphicaluser interface (GUI) for exercising the features of this
reference design.
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Features
● Wide 12V to 40V Input Supply Range
● Transfer 16-Bit Digital Code to 4–20mA Loop Current
● Offset and Gain Programmable
● < 0.02 % FS Current Error at +25°C
● < 0.1 % FS Current Error Over Temperature Range
● -40°C to +105°C Temperature Range
● 30mA ±20% Resistor-Selectable Current Limiting
● 200µA (typ), 300µA (max) Quiescent Current
● HART Modem Input and Output Ready
● Direct USB Communication through the MAXQ622
Microcontroller
● Windows XP-, Windows Vista-, and Windows 7
(32-Bit)-Compatible Software
Ordering Information appears at end of data sheet.
● SPI Interface Terminals
● Proven PCB Layout
● Fully Assembled and Tested
Component List
DESIGNATION
QTY
C2, C16
2
C3
C4
DESCRIPTION
DESIGNATION
QTY
1µF ±10%, 50V X7R ceramic
capacitors (0805)
Murata GRM21BR71H105KA12
C9, C11, C15,
C19, C20,
C22, C25
7
1µF ±10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C105K
1
0.1µF ±10%, 50V X7R ceramic
capacitor (0805)
Murata GRM21BR71H104KA01
C23, C24
2
18pF ±5%, 50V COG ceramic
capacitors (0603)
Murata GRM1885C1H180J
1
10µF ±10%, 16V X5R ceramic
capacitor (0805)
Taiyo Yuden EMK212BJ106KG-T
D1
1
Schottky diode (SC79)
NXP RB751S40,115
C5, C6, C10,
C12–C14,
C18, C21
D2
1
TVS diode (SMA)
Burns SMAJ36CA
8
0.1µF ±10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
FB1
1
600Ω ferrite bead (0805)
API Delevan EMI0805R-600
C7, C8, C17
3
1000pF ±10%, 50V X7R ceramic
capacitors (0603)
Murata GRM188R71H102KA01
J1
1
Mini-USB type-B, right-angle
PC-mount receptacle
Hirose UX60A-MB-5ST
J2
0
Not installed, 10-pin (2 x 5)
header, 0.1in centers
Windows, Windows XP, and Windows Vista are registered
trademarks and registered service marks of Microsoft
Corporation.
19-6689; Rev 0; 5/13
DESCRIPTION
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Component List (continued)
DESIGNATION
QTY
DESIGNATION
QTY
J3–J7, J9, J11
6
2-pin headers, 0.1in centers
Sullins PEC36SAAN
R14, R19,
R22–R24
5
100Ω ±1%, 1/10W resistors
(0603)
Panasonic ERJ-3EKF101V
J8
1
3-pin header. 0.1in center
Sullins PEC36SAAN
R20
1
1
2.54mm, 2-position, side-entry
terminal block
Phoenix Contact 1725656
3.3kΩ ±1%, 1/10W resistor
(0603)
Panasonic ERJ-3EKF3301V
Q1
1
N-channel MOSFET (SOT223)
Fairchild NDT014L
RS
1
10Ω ±0.1%, 1/10W resistor
(0603)
Bourns CRT0603BY10R0ELF
Q2
1
Bipolar npn transistor (SOT23)
NXP MMBT3904,215
TP1
1
R1
1
287kΩ ±0.1%, 1/10W resistor
(0603)
Panasonic ERA-3AEB2873V
Red PC test point, compact
0.06in
Kobiconn 151-107-RC
TP2
1
Black PC test point, compact
0.06in
Kobiconn 151-103-RC
TP3–TP13
11
Turret terminal pins
Mill-Max 2108-2-00-44-00-00-07-0
J10
DESCRIPTION
DESCRIPTION
R2
1
24.9kΩ ±0.1%, 1/10W resistor
(0603)
Susumu RG1608P-2492-B
R3
1
2MΩ ±1%, 1/10W resistor (0603)
ROYALOHM TC0650F2004T4E
U1
1
16-bit VOUT DAC (8 µMAX®)
Maxim MAX5216GUA+
R4, R8
2
301Ω ±1%, 1/10W resistors
(0603)
Panasonic ERJ-3EKF3010V
U2
1
Single zero-drift RRIO op amp
(5 SC70)
Maxim MAX9620AXK+
R5, R12, R18
3
1kΩ ±1%, 1/10W resistors (0603)
Panasonic ERJ-3EKF1001V
U3
1
R6, R15–R17
4
24.3Ω ±1%, 1/10W resistors
(0603)
Panasonic ERJ-3EKF24R3V
2.5V, 3ppm/ºC, low-power voltage
reference (8 µMAX)
Maxim MAX6133A25+
U4
1
100Ω ±0.1%, 1/10W resistor
(0603)
Panasonic ERA-3AEB101V
3.3V, ultra-low quiescent current,
LDO (6 TDFN)
Maxim MAX15007AATT+
U5
1
10kΩ ±1%, 1/10W resistors
(0603)
Panasonic ERJ-3EKF1002V
16-bit microcontroller with USB
2.0 interface (64 LQFP)
Maxim MAXQ622G-0000+
Y1
1
12MHz crystal oscillator
(HC49US)
Citizen HCM49-12.000MABJ-UT
—
1
PCB: MAX5216LPT Rev. A
R7
R9, R10
R11, R13
1
2
2
49.9kΩ ±1%, 1/10W resistor
(0603)
Panasonic ERJ-3EKF4992V
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
www.maximintegrated.com
Maxim Integrated │ 2
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Component Suppliers
SUPPLIER
PHONE
WEBSITE
API Delevan
408-865-0344
www.delevan.com
Bourns, Inc.
408-496-0706
www.bourns.com
Citizen America Corp.
310-781-1460
www.citizencrystal.com
Fairchild Semiconductor
888-522-5372
www.fairchild.com
Hirose Electric Co., Ltd.
81-3-3491-9741
www.hirose.com
Kobiconn
800-346-6873
www.mouser.com/kobiconn
Murata Electronics North America, Inc.
770-436-1300
www.murata-northamerica.com
NXP Semiconductors
408-474-8142
www.nxp.com
Panasonic Corp.
800-344-2112
www.panasonic.com
Sullins Electronics Corp.
760-744-0125
www.sullinselectronics.com
Susumu International USA
208-328-0307
www.susumu-usa.com
Note: Indicate that you are using the MAX5216LPT when contacting these component suppliers.
Quick Start
Required Equipment
● MAX5216LPT EV kit
● The EV kit board is a plug-n-play device that connects
to the PC through a USB-A to Mini-B cable.
● The EV kit is preloaded with the default firmware that
communicates with the MAX5216LPT evaluation software. Software can be installed and run on Windows
XP, Windows Vista, and Windows 7-based systems.
Note: In the following sections, software-related items are
identified by bolding. Text in bold refers to items directly
from the EV kit software. Text in bold and underlined
refers to items from the Windows operating system.
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
1)Visit www.maximintegrated.com/design/tools/
applications/evkit-software/ to download the latest
version of the EV kit software, MAX5216LPTGUIVxx.
ZIP. Unzip the file and run the setup.exe. Follow
the instructions to install the evaluation software on
your PC. The program files are copied and icons are
created in the Windows Start | Programs menu.
2) Connect the MAX5216LPT to the PC though a USB cable.
No additional driver is needed; Windows recognizes
the new device as a human interface device (HID) and
automatically finds and installs the appropriate driver for
it. For more information, check the device properties in:
www.maximintegrated.com
Figure 1. USB Input Device Properties
Device Manager\Human Interface Control\USB Input
Device\Properties - > USB\VID_0B6A&PID_1234.
See Figure 1.
3) Run the MAX5216LPT.exe program. The application’s
GUI appears, as shown in Figure 2.
Maxim Integrated │ 3
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
RUN
BUTTON
STOP
BUTTON
Figure 2. MAX5216LPT GUI
Detailed Description of Software
The MAX5216LPT EV kit GUI (Figure 2) is active by
default. The application checks all the boards with the
USB VID/PID 0x0B6A /0x1234 that connected to the PC
and indicates them on the right side of the GUI. Up to 16
boards can be connected to the system. Each board has
its own unique board index. Select the appropriate board
index from the Board index spin box (Figure 3).
The EV kit board has to be calibrated first for proper
operation. Connect an external 12V to 40V power supply
between the LOOP+ (TP1) and LOOP- (TP2) test points
or to the J10 connector (see the Figure 13a schematic).
www.maximintegrated.com
It is strongly recommended to use an isolated power
supply. Connect a precision digital voltmeter (DVM) across
the precision load. The on-board 100Ω 0.1% R7 resistor
can be used as precision load for quick calibration. In this
case, remove the J9 shunt and place the DVM across the
J9 header. With the 100Ω load, the DVM should display
less than 0.350V. This means that the board consumes
less than 3.5mA current. Move the track-bar slider to the
right until the DVM displays approximately 0.4V. Use the
up/down arrow buttons next to Code control spin box to
fine tune to an exact 400mV drop across the R7 sense
resistor. Type that code into the Calibration Code group
box in the field labeled 4mA Code.
Maxim Integrated │ 4
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
MATCH
Figure 3. Select the Board Index in the System with the Multiple Boards
Continue the same procedure to find the calibration code
for 20mA loop current. The DVM indicates 2.000V across
R7 when loop current reaches 20mA. Type in the 20mA
code into the Calibration Code group box in the field
labeled 20mA Code. The loop current can also be set by
typing in a decimal, hexadecimal, or an octal or a binary
value in the Code Control spin box (Figure 4). The board
accepts codes from 0 to 65535 (216-1) decimal or from 0
to FFFF hex. The notation is displayed on the left side of
the box.
www.maximintegrated.com
Now when the track-bar slider position is changed, the
correct current is indicated in the Loop current box of
the GUI. The calibration code for 4mA and 20mA loop
current can be written on the board itself to avoid calibration procedures in the future, as shown in Figure 5. The
same procedure can be continued to find the appropriate
code for 24mA loop current, if applicable.
Maxim Integrated │ 5
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Figure 4. Notation Selection Dialog Box
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Maxim Integrated │ 6
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Figure 5. MAX5216LPT Board
www.maximintegrated.com
Maxim Integrated │ 7
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Detailed Description of Hardware
The MAX5216LPT EV kit board is loaded with the
MAX5216, Maxim’s best-in-class lowest power 16-bit
DAC (U1), the MAX6133A25 voltage reference (U3), the
MAX9620 zero-drift, RRIO high-precision op amp (U2),
and the MAX15007 40V low-quiescent current LDO (U4).
See the block diagram in Figure 6 and the schematics in
Figures 13a and 13b. The on-board MAX6133A25 (U3)
provides low temperature drift of 3ppm/°C, low quiescent
current, and 2.500V precise voltage reference for the
DAC. The MAX5216 (U1) receives a command from the
16-bit MAXQ622 microcontroller (U5) through a 3-wire
high-speed SPI bus, which emulates the smart sensor;
then its output is divided and converted into the loop current by the MAX9620 (U2) op amp, Q1 power MOSFET,
and 10Ω ±0.1% sense resistor (RSENSE). The U1–U3
devices are powered by the MAX15007, a 3.3V low-noise
LDO voltage regulator (U4), which gets power from an
external power supply. There is a current-limiting circuitry
made on the Q2 BJT transistor and sense resistor R6.
This circuitry limits the loop current to approximately
30mA, which prevents runaway conditions and damaging
an ADC on the programmable logic controller (PLC) side.
The Schottky diode (D1) and transient voltage suppressor
(D2) are safety devices that protect the transmitter from
reverse current flow and overvoltage surge conditions.
The U1 device can run at 50MHz clock frequency, but the
SPI bus speed is limited to 6MHz on this board by the U5
microcontroller. The evaluation software allows setting the
loop current through the full-speed USB 2.0 bus and the
U5 microcontroller. The microcontroller is preloaded with
the firmware that communicates with the GUI.
3.3V
VREF 2.5V
U3
U4
MAX6133
MAX15007
R3
2MΩ
VDD
SMART
SENSOR
SPI
VREF
U1
MAX5216
16-BIT, DAC
R1
287kΩ
U2
MAX9620
301Ω
GND
RB571S40
4–20mA
CURRENT LOOP
Q1
NDT014L
∞
LOOP POWER
12V TO 40V
Q2
MMBT3904
R6
24.3Ω
R2
24.9kΩ
RSENSE
10Ω
RLOAD
DAC
Figure 6. MAX5216LPT EV Kit Block Diagram
www.maximintegrated.com
Maxim Integrated │ 8
MAX5216LPT Evaluation Kit
Principles of Operation and
Key Design Parameters
The block diagram shown in Figure 6 allows for the
designing of a high-performance, low-power, low component count 4–20mA current-loop transmitter that gives the
best result for the price vs. performance solution.
The low-power, high-performance components need to
be selected to meet the 0.1% current-error requirements
of the 4–20mA current loop. The maximum current
consumption of the selected components is less than
300µA over -40ºC to +105ºC temperature range. In
addition to low power, the 25µV (max) zero-drift input
offset voltage over time and temperature of the MAX9620
makes this op amp ideal for the accuracy and stability of
this circuitry. The U2 op amp is tracking the voltage drop
across the R2 and RSENSE resistors and maintains 0V at
both its input nodes.
The following equations are used for this circuitry:
= I(R2) ×
I OUT
R2
R SENSE
I(R2)
= I(R1) + I(R3)
EQ1
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
According to Namur NE43 recommendations for failure
information transmitted over 4–20mA current loop, the
signal range for measurement information is from 3.8mA
to 20.5mA, allowing for a small amount of linear overrange process readings. The actual supported range of
this board is from 3.2mA to 24.6mA. Solving the EQ4 for
R3 having:
R2
R3 =
VREF ×
2.5
=
R SENSE × I OUT
INIT
×
Since the cost to maintain the exact 1.945MΩ resistor is
too high and is not well suited for the automated production and easy field calibration, it is recommended to use a
regular 1% tolerance resistor and regain the accuracy by
calibrating out the 4mA offset current and the 20mA fullscale current by the U1 DAC. In this case, some digital
codes are used for calibration purposes to maintain the
required accuracy.
V
× CODE
I(R1) = REF
65535 × R1
IOUT is the loop current,
I(R2) is the current flowing through the R2 resistor,
I(R1) is the current flowing through the R1 resistor, and
I(R3) is the current flowing through the R3 resistor.
In EQ2, we assume that the input current to IN+ and to
IN- of U2 is 0.
According to EQ1 and EQ2, the initial loop current of 4mA
is set by the I(R3) current, while I(R1) is 0.
Thus:
INIT
R2
R SENSE
EQ3
Current through the R3 resistor is equal to the U3 output
divided by R3, and equation EQ3 can be overwritten as
follows:
=
I OUT
INIT
VREF
R2
×
R3
R SENSE
www.maximintegrated.com
EQ5
The I(R1) = VDAC/R1, where VDAC is the U1 DAC output
voltage, and can be overwritten as:
EQ2
where:
I OUT= I(R3) ×
24.9 × 10 3
1.945 × 10 6( Ω )
=
10 × 3.2 × 10 −3
EQ4
EQ6
And:
V
I(R3) = REF
R3
EQ7
Finally, the EQ1 can be overwritten as:
1
R2
 CODE
I OUT= VREF × 
+
×

 65535 × R1 R3  R SENSE
EQ8
The error analysis of passive components and VREF of
the 4–20mA current-loop transmitter based on EQ8 can
be seen in Table 1.
Note: The 4–20mA Transmitter Design Calculator/Error
Analyzer spreadsheet is available at www.maximintegrated.com/design/tools/calculators/product-design
page. It is recommended to use the What-If Analysis/
Goal-Seek feature from the Data tab to find the appropriate code for 4mA, 20mA, and 24mA IOUT.
Maxim Integrated │ 9
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Table 1. 4–20mA Current-Loop Transmitter Error Analysis
COMPONENT
TOL (±%)
MINIMUM
NOMINAL
MAXIMUM
UNITS
VREF
0.04
2.4990
2.5000
2.5010
V
R1
0.1
286.71
287
287.29
kΩ
R2
0.1
24.88
24.9
24.92
kΩ
R3
1
1980.00
2000
2020.00
kΩ
RSENSE
0.1
0.00999
0.0100
0.01001
kΩ
—
—
MINIMUM
NOMINAL
MAXIMUM
UNITS
0
0
0
Decimal
Zero-scale IOUT
3.07430
3.11250
3.15149
mA
4mA DAC code
2806
2682
2555
Decimal
3.99984
4.00015
3.99999
mA
65535
65535
65535
Decimal
24.69058
24.8024
24.91527
mA
Zero-scale DAC code
4mA IOUT
Full-scale DAC code
Full-scale IOUT
51314
51025
50734
Decimal
20mA IOUT
20mA DAC code
19.99988
20.00007
19.99995
mA
4mA error
-0.00410
0.00381
-0.00016
% FS
20mA error
-0.00061
0.00035
-0.00026
% FS
63441
63111
62779
Decimal
23.99989
24.00013
24.00002
mA
24mA IOUT DAC code
24mA IOUT
Note: Shaded cells indicate TBD.
In this case, having the standard 1% tolerance 2MΩ R3
resistor, and setting the U1 to 2682 decimal code, the
initial loop current of 4.00015mA is maintained.
Note that the total calculated error is much less than the
tolerance of the individual components due to it being
calibrated out by the high-resolution U1 DAC. The
effective number of bits (ENB) for a 4–20mA current-loop
transmitter can be calculated as:
ENB =
There are other sources of error that need to be addressed,
such as ±25µV of VOS of the U2 op amp and the temperature coefficients of each component. The typical characterization data of the MAX5216LPT 4–20mA current-loop
transmitter is presented in Figures 7–12. The loop current
is measured by an Agilent-HP3458A DVM as voltage drop
across the loop load /sense resistor of 249Ω.
LOG(20mA DAC CODE − 4mA DAC CODE)
LOG(2)
and based on the data from Table 1, the ENB = 15.56 bits.
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Maxim Integrated │ 10
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
0.2
0.02
0.1
12V
0
ERROR (% FS)
ERROR (% FS)
0.01
24V
-0.01
-0.02
4mA
8mA
12mA
16mA
20mA
-0.1
36V
0
10k
20k
0
30k
40k
50k
-0.2
60k
-40
-20
DAC CODE (DECIMAL)
40
60
80
100
Figure 9. Transmitter Error Change vs. Temperature with 12V
Loop Supply
0.2
0.2
0
-0.1
4mA
8mA
12mA
16mA
20mA
0.1
ERROR (% FS)
4mA
8mA
12mA
16mA
20mA
0.1
ERROR (% FS)
20
TEMPERATURE (°C)
Figure 7. Transmitter Error at +25ºC
-0.2
0
0
-0.1
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
Figure 8. Transmitter Error Change vs. Temperature with 24V
Loop Supply
www.maximintegrated.com
-0.2
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
Figure 10. Transmitter Error Change vs. Temperature with 36V
Loop Supply
Maxim Integrated │ 11
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
40
40
35
35
LOOP CURRENT (mA)
LOOP CURRENT (mA)
MAX5216LPT Evaluation Kit
30
25
20
-40°C
+0°C
+25°C
12
16
20
24
28
+60°C
+85°C
+105°C
32
36
25
20
40
12V
16V
20V
24V
28V
32V
36V
40V
30
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
LOOP VOLTAGE (V)
Figure 11. Current Limit vs. Loop Voltage Supply
Figure 12. Current Limit vs. Temperature
MAX5216LPT Extended Features
5)The board is ready for HART interface to exchange
data over 4–20mA current loop using the DS8500-KIT
HART modem. Simply connect the FSKOUT pin (P2.3)
of the modem to TP10, modem’s GND (P2.5) to TP11,
and FSKIN pin (P2.2) to TP12. Connect the P2.1 pin
(V33) of the DS8500 EV kit board to TP4 (3.3V). Use
the digital interface to send and receive the data. Refer
to the DS8500 IC data sheet and the DS8500-EV kit
data sheet for more info.
1) The board quiescent current is about 200µA (typ),
which allows consuming up to 3.4mA by smart
sensor. This current can be measured by a DVM
connected across R7 while the J7 shunt is removed
and U1 code is 0. Removing the J7 shunt eliminates
4mA offset current.
2) The 4mA offset current is independent from the actual
current consumption by the smart sensor. An additional 1mA can be added by placing the J11 shunt,
but the 4mA offset current (400mV across R7) does
not change.
3) The current-limiting condition can be forced by placing the J8 shunt from the default position of 1-2 to
position 2-3.
The microcontroller on the EV kit board can also be
programmed with custom firmware through the J2
JTAG connector (see Table 2).
Table 2. JTAG Connector Description (J2)
PIN
LABEL
1
TCK
Test clock
2
GND
Digital ground
3
TDO
Test data output
● Remove the J3–J5 shunts (see Figure 10 for
component placement).
4
N.C.
No connect
5
TMS
Test mode select
● Connect the SPI lines, CS, SCLK, MOSI, and
VGND from TP5–TP8 to the external host controller. Ensure that the input voltage (VIH) is within the
spec limit and matches 3.3V level. Note that digital
isolation might be necessary for proper operation.
6
RST
Reset
7
N.C.
No connection
8
+5V
+5V from the JTAG debug adapter
9
TDI
Test data input
● Send a command to the DAC.
10
GND
Digital ground
4)The board can be evaluated over the full SPI bus
speed range with an external SPI host controller. To do
so, the following board modifications must be made:
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FUNCTION
Maxim Integrated │ 12
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Figure 13a. MAX5216LPT EV Kit Schematic (Sheet 1 of 2)
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Maxim Integrated │ 13
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Figure 13b. MAX5216LPT EV Kit Schematic (Sheet 2 of 2)
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Maxim Integrated │ 14
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
1.0”
Figure 14. MAX5216LPT EV Kit Component Placement Guide—Assembly Drawing Top
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Maxim Integrated │ 15
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
1.0”
Figure 15. MAX5216LPT EV Kit Component Placement Guide—Assembly Drawing Bottom
Contact the Support Center at https://support.maximintegrated.com/designdesk/index.mvp for full layout drawings and/or a
Gerber file for the MAX5216LPTEVKIT board.
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Maxim Integrated │ 16
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Ordering Information
PART
TYPE
MAX5216LPT#
EV Kit
#Denotes RoHS compliant.
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Maxim Integrated │ 17
MAX5216LPT Evaluation Kit
Evaluates: Reference Design of
4 –20mA Loop-Powered Transmitter
Revision History
REVISION
NUMBER
REVISION
DATE
0
5/13
DESCRIPTION
Initial release
PAGES
CHANGED
—
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2013 Maxim Integrated Products, Inc. │ 18