User’s Guide
SNAU120-April 2012
ADC161S626BEB User’s Guide
LIST OF FIGURES ............................................................................................................. 1
LIST OF TABLES ............................................................................................................... 1
1. INTRODUCTION ......................................................................................................... 1
2. BOARD ASSEMBLY ................................................................................................... 1
3. QUICK START ............................................................................................................ 3
4. FUNCTIONAL DESCRIPTION .................................................................................... 4
5. HARDWARE SCHEMATIC ......................................................................................... 5
6. ADC161S626 EVALU ATIO N BOARD BILL OF MATERIALS ................................... 6
EVALUATION BOARD/KIT/MODULE (EVM).................................................................. 11
LIST OF FIGURES
Figure 1: ADC161S626 Eval board connected to SPIO board. ..................................... 3
LIST OF TABLES
Table 1: Test Points on the ADC161S626 Evaluation Board ........................................ 2
Table 2: Connectors on the ADC161S626 E valuation Board ....................................... 2
Table 3: Jumpers .............................................................................................................. 2
1. Introduction
The ADC161S626BEB Evaluation Board Design Kit (consisting of the ADC161S626BEB board, this users
guide, an optional SPIO4 board and an optional sensor board) is intended to ease evaluation of the
ADC161S626. With the optional SPIO4 board and optional Sensor board, the board allows evaluation of an
entire Sensor AFE system.
The evaluation board can be used in stand alone mode, in which the user interfaces with the part through the
SPIO-GPSI16 connector and applies input signals on the AB12 connector. The board can also be used with
an SPIO4 board in place of an external pattern generator. Finally, in the Sensor AFE system, the
ADC161S626BEB board and the optional sensor board (for example, the LMP91000 Configurable AFE Gas
Sensor board) can be used with an SPIO4 board to evaluate the entire Sensor AFE system.
2. Board Assembly
The ADC161S626BEB evaluation board comes fully assembled and ready for use. Refer to the Bill of
Materials for a description of components and to the schematic at the end of this document. There are
jumper selections for choosing between different power supply and clock configurations.
SNAU120-April 2012 ADC161S626BEB User’s Guide 1
Test Point
Purpose
SCLK,
DOUT, CSB
ADC SPI bus signals. Located below the DUT.
VREF,
If external supplies on the banana jacks are used for VREF, VA,
used, the banana jacks can be used as test points.
Connector
Purpose
SPIOGPSI16
16 pin dual row right angle male header to connect to the SPIO4
board.
GPSI16
16 pin dual row right angle female header. Carries signals from
the SPIO4 board to any optional SensorAFE board.
AB12
12 pin dual row right angle male header. Carries analog bus
to the ADC.
Jumper
Purpose
VREF
SELECT
Selects reference source for VREF. Settings are Vref banana
jack, on board Va or on board LM4120-4.1
VIO SELECT
Allows choice of VIO for the chip, the SPIO interface and
banana jack.
5V from the SPIO connector.
Board Assembly
VDDIO, VA
Table 1: Test Points on the ADC161S626 Evaluation Board
Table 2: Connectors on the ADC161S626 Evaluation Board
VA SELECT Allows choice of VA for the part. Choices are VA banana jack or
VIO EXT the center pins of jumpers VREF SELECT, VIO
SELECT, VA SELECT can be used as a test point for those
signals. If on board power supplies (from the SPIO board) are
signals from an external source or the optional Sensor AFE board
whatever sensor board is connected to the ADC board. Choices
are on board Va, 3.3V from the SPIO connector or the VIO EXT
Table 3: Jumpers
2 ADC161S626BEB User’s Guide SNAU120-April 2012
3. Quick Start
The fastest way to s tart usi ng the ADC 161S626 evaluatio n board is to use it with the SPIO 4 board, a senso r
board such as the LMP91000 and the Sensor AFE software.
3.1 Sensor AFE Setup (LMP91000)
• Install the VA SELEC T jumper between pins 1 and 2 (VA and 5V) . This will power VA from the 5V
supply coming from the SPIO4 board.
• Install the VIO SELECT j um per between pi ns 2 and 3 (VA and VDDIO ) . T his will po wer the IO on t he
chip from the same voltage as VA or 5V. Note, this VDDIO will go on to the LMP91000 board.
• Install the VREF SELECT j umper from pin 2 to 3 (VREF and ON BOAR D REF) . This will connect the
ADC VREF line to the 4.096V on board LM4120 reference.
• Ensure that a 4MHz c r ystal is installed in the socket Y2 an d th at th ere is no s igna l ap pl ied at t he CLK
IN BNC jack.
• Connect the SPIO4 board t o the A DC 1 61 S62 6B EB bo ar d at th e S PI O-G SPI 16 m ale h ead er. Li ne u p
the white arrows on the bottom of the headers.
• Connect the LMP91 000 board to the GPSI16 and AB12 headers. Line up the white arrows at the
bottom of the headers (see Figure 1)
• Connect the SPIO4 board to its power supply and to your computer via the USB cable in that order.
Figure 1: ADC161S626 Eval board connected to SPIO board.
• Start the SensorAFE software on your computer.
3.2 Setup for Other Boards
• Choose the VA supply:
o Install the VA SELECT jum per between pins 1 and 2 (VA and 5V) to power VA f rom the 5V
supply coming from the SPIO4 or SPUSI2 board.
SNAU120-April 2012 ADC161S626BEB User’s Guide 3
o Leave the jumper off to select the VA banana jack
• Choose the VDDIO supply:
o Install the VIO SELECT jumper between pins 1 and 2 (+3.3V and VDDIO) to choose the 3.3V
supply coming from the SPIO4 or SPUSI2 board.
o Install the VIO SELECT jumper between pins 2 and 3 (VA and VDDIO) to choose the IO on
the chip from the same voltage as VA or 5V.
o Leave the jumper off to select the VIO EXT banana jack.
• Choose the VREF supply:
o Install the VREF SELECT jumper from pin 1 to pin 2 (VA and ON BOAR D REF) to connect
the VREF pin to the VA supply.
o Install the VREF SELECT jumper from pin 2 to 3 (VREF and ON BO ARD REF) to connect
the ADC VREF line to the 4.096V on board LM4120 reference.
o Leave the jumper off to select the external reference present on the VREF banana jack.
• Choose the clock source
o Install a 4MHz crystal in the socket Y2 to generate an on board clock that can go to the
SPIO4 board.
o Leave Y2 unpopulated an d att ach a 4 MHz signal to the CLK IN BNC con nec tor to generate a
clock for the SPIO4 board.
o Bring a clock to the SPIO-GPSI16 header from an external board of your choice.
4. Functional Description
4.1 ADC Reference Circuitry
This evaluation board includes three options to source the voltage reference, VREF. The options are
selecting the fixed, on bo ard +4.096V voltag e reference (LM4 120-4.1) to source VREF, connectin g VREF to
VA of the device, or using the ex ternal banana jack to sourc e VREF. To select the +4.1V referenc e, short
pins 2 & 3 of VREF SELECT jumper. To connect VA to VREF, short pins 1 and 2 of the VREF SELECT
jumper. To select the exter nal reference, do not ins tall a jumper. Consult th e data sheet for the accept able
values of VREF.
4.2 SPI Interface
The ADC161S626 requ ires three SPI pins. T he input pins are Serial C lock (SCLK), Chip Select Bar (CSB).
The output pin is data o ut or Master In Slave Out (MISO). T he user must provide input signals for SCLK,
CSB.
4.2.1 Serial Clock (SCLK, CSB, MISO, MOSI)
These signals can be provided b y the SPIO 4 or SPUS I2 board. I n stand a lone mode, t hese signa ls mus t be
provided by the user on the SPIO-GPSI16 header. The signal lev els are TTL and CMOS compatible. The
voltage expected is set by the value of VDDIO that is applied to the board.
4 ADC161S626BEB User’s Guide SNAU120-April 2012
5. Hardware Schematic
SNAU120-April 2012 ADC161S626BEB User’s Guide 5
Item
Designator
Description
Manufacturer
PartNumber
Quanti
ty
1
U7
16-Bit, 50 to 250 kSPS, Differential
Labs Socket MSO10SD
Texas Instruments
ADC161S626CIM
1
2
C18, C20,
C29, C32
CAP, CERM, 0.1uF, 16V, +/-5%,
AVX
0603YC104JAT2A
6
3
C31
CAP, CERM, 470pF, 50V, +/-5%,
C0G/NP0, 0603
AVX
06035A471JAT2A
1 4 C1
CAP, CERM, 56pF, 50V, +/-5%,
C0G/NP0, 0603
AVX
06035A560JAT2A
1
C28
0.45 ohm, 6032-28 SMD
TE3
6
CLK IN
Connector, TH, BNC
Amphenol Connex
112404
1
7
GPSI16
GPSI16 Female Header, 8-Pin,
Sullins Connector
PPTC082LJBN-RC
1
8
AB12,
GPSI16
Header, 6-Pin, Dual row, Right
Dual row, Right Angle
Sullins Connector
PBC36DGAN
2
9
VA
Header, TH, 100mil, 1x2, Gold
Samtec Inc.
TSW-102-07-G-S
1
SELECT
11
U6
IC EEPROM 2KBIT 400KHZ
8TSSOP
ON Semiconductor
CAT24C01WI-GT3
1
12
Y2
OSC 4.000 MHZ 5.0V FULL SIZE
ECS Inc
ECS-100AX-040
1
FOR Y2
4PIN
14
U4
Precision Micropower Low Dropout
Voltage Reference
Texas Instruments
LM4120AIM5-
4.1/NOPB
1
15
AA1
Printed Circuit Board
TBD 1
0EA
17
R30, R34
RES, 20.0 ohm, 1%, 0.1W, 0603
Vishay-Dale
CRCW060320R0F
KEA
2
18
R46
RES, 27.4 ohm, 1%, 0.1W, 0603
Vishay-Dale
CRCW060327R4F
KEA
1
19
R41, R45
RES, 51.1 ohm, 1%, 0.1W, 0603
Vishay-Dale
CRCW060351R1F
KEA
2
VREF
6. ADC161S626 Evaluation Board Bill of Materials
C26, C27,
5 C19, C25,
SPIO-
SELECT
10 VIO
SELECT,
VREF
Input, MicroPower ADC & Rainbow
X7R, 0603
CAP, TANT, 10uF, 16V, +/-10%,
Dual row, Right Angle
Angle, SPIO-GPSI16 Header, 8-Pin,
plated, 230 mil above insulator
Header, TH, 100mil, 1x3, Gold
plated, 230 mil above insulator
M/NOPB
Vishay-Sprague 593D106X9016C2
Solutions
Solutions
Samtec Inc. TSW-103-07-G-S 2
3
13 SOCKET
16 R42 RES, 0 ohm, 5%, 0.1W, 0603 Vishay-Dale CRCW06030000Z
20 GND, VA,
VIO EXT,
OSCILLATOR SOCKET FULL SIZE
Standard Banana Jack,
Uninsulated, 15A
6 ADC161S626BEB User’s Guide SNAU120-April 2012
Aries Electro nic s 1107741 1
1
Johnson
Components
108-0740-001 4
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS
Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions:
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Should this evaluation boa rd/kit not meet the specifications indicated in th e User’s Guide, the board/ kit may be
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Copyright 2012, Texas Instruments Incorporated
REGULATORY COMPLIANCE INFORMATION
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has not been tested for com pliance with the limits of computing devices pursuant to part 15 of FCC or ICES-003
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User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally
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regulatory authorities, which is responsibility of user including its acceptable authorization.
SNAU120-April 2012 ADC161S626BEB User’s Guide 7
www.ti.com/esh or contact TI.
For EVMs annotated as FCC – FEDERAL COMM UNICATIONS COMMISSIO N Part 15 Com p l ia nt
Caution
This device complies w ith part 15 of the FCC Rules. O peration is subject to the f ollowing two conditions: (1) T his
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Changes or modifications not expressly approved by the party responsible for compliance could void the user's
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This equipment has bee n tested and found to c omply with the limits f or a C las s A di gital de vice, pursuant to par t 1 5
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This Class A or B digital apparatus complies with Canadian ICES-003.
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This device complies with Industry Canada lice nce-exempt RSS standar d(s). Operation is subject to the following
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Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and
maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to
8 ADC161S626BEB User’s Guide SNAU120-April 2012
other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power
(e.i.r.p.) is not more than that necessary for successful communication.
This radio transm itter has been approved by Industry Canada to operate with the ant enna types listed in the user
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Antenna types not inclu ded in this list, having a gain greater than th e maximum gain indicated f or that type, are
strictly prohibited for use with this device.
~
Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada.
Les changements ou les modific ations pas ex pressém ent approuvés par la partie r esponsable de la conf ormité ont
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Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une
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Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne
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Important Notice for Users of this Product in Japan】
This development kit is NOT certified as Confirming to Technical Regulations of Radio
Law of Japan!
If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with
respect to this product:
(1) Use this product in a shielded room or any other test f ac ility as def in ed in the notification #173 issued b y
Ministry of Internal Af fairs and Communications on March 28, 20 06, based on Sub-section 1.1 of Artic le 6 of the
Ministry’s Rule for Enforcement of Radio Law of Japan,
(2) Use this product only after you obtained the license of T est Radio Station as prov ided in Radio Law of
Japan with respect to this product, or
(3) Use of this product only after you obtained the Technical Regulations Conformity Certification as
provided in Radio Law of Japan with respect to this product.
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Japan.
Texas Instruments Japan Limited
SNAU120-April 2012 ADC161S626BEB User’s Guide 9
(address) 24-1, Nishi-Shinjuku 6 chome, Shinjukku-ku, Tokyo, Japan
http://www.tij.co.jp
【ご使用にあたっての注意】
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10 ADC161S626BEB User’s Guide SNAU120-April 2012
EVALUATION BOARD/KIT/MODULE (EVM)
WARNINGS, RESTRICTIONS AND DISCLAIMERS
For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this
EVM is not a finished electrical equipment and not intended for consumer use. It is intended solely for use for
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o
C as long as the input and output
SNAU120-April 2012 ADC161S626BEB User’s Guide 11
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Following are URLs where you can obtain information on other Texas Instruments products and application
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Products Applications
Amplifiers amplifier.ti.com Audio www.ti.com/audio
Data Converters dataconverter.ti.com Automotive www.ti.com/automotive
DSP dsp.ti.com Broadband www.ti.com/broadband
Interface interface.ti.com Digital Control www.ti.com/digitalcontrol
Logic logic.ti.com Military www.ti.com/military
Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork
Microcontrollers microcontroller.ti.com Security www.ti.com/security
RFID www.ti-rfid.com Telephony www.ti.com/telephony
Low Power www.ti.com/lpw Video & Imaging www.ti.com/video
Wireless Wireless www.ti.com/wireless
12 ADC161S626BEB User’s Guide SNAU120-April 2012
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2007, Texas Instruments Incorporated
SNAU120-April 2012 ADC161S626BEB User’s Guide 13
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