ADC128D818 Evaluation Board User’s Guide
April 14, 2010 Rev - 5.0
ADC128D818
12-Bit 8-Channel ADC System Monitor with Temperature Sensor
and Serial 2-Wire Interface
Evaluation Board User’s Guide
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ADC128D818 Evaluation Board User’s Guide
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ADC128D818 Evaluation Board User’s Guide
Table of Contents
1. Introduction……………………………………………………………………………………………………. 4
2. Quick Start……………….…………………………………………………………………………………….. 4
2.1 Setting Up the Board..…………..………………………………………………………………..……... 4
2.2 Starting the Software………..………………………………………………………………..…..……... 4
3. Equipment Setup………………………………………………………………………………………………. 5
3.1 Equipment List…………………………………………………………………………………...... 5
2.2 Equipment Connection Diagram ………………………………………………………………………. 5
4. ADC128D818 Board Setup……………………………………………………………………………………6
4.1 Component Placement Diagram…………………………………………………...... 6
4.2 Jumper Options………………………………………………………………………………………….. 7
4.3 Powering the Board…………………………………………………………………………………….. 8
5. SensorEval Software………………………………………………………………………………………….. 9
5.1 Installing the Software…………..………………………………………………………………..……... 9
5.2 Setting the Address.……..………………………………………………………………..…..……...... 9
5.3 ADC128D818 Registers………..…………………………………………………………..…..…….....10
6. Appendix………………………………………………………………………………………………………...12
6.1 Board Schematic…………..……………………………………………………………………...... 12
6.2 Board Layouts……….……..……………………………………………………………………...... 14
6.3 Bill of Materials……….……..…………………………………………………………………...... 16
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ADC128D818 Evaluation Board User’s Guide
1. INTRODUCTION
The ADC128D818/RoHS Evaluation Board Kit (consisting of the ADC128D818 Evaluation Board, the SensorEval Software, and this user's guide) is designed to ease evaluation and design-in of National Semiconductor’s ADC128D818 12-bit ADC for System Hardware Monitor with 2-Wire Serial Interface.
Writing and reading to the ADC128D818’s Registers are simplified by connecting the ADC128D818 Evaluation Board to a Personal Computer (PC) via a USB cable and running the SensorEval software. The Cypress Microcontroller on the board will generate a 2-wire I2C serial interface, and the SensorEval software will be used to control, read from, and write to the ADC128D818.
This document will describe the connection between the ADC128D818 Evaluation Board and the SensorEval Software, explain how to use the software, and provide a quick start to evaluating the ADC128D818.
2. QUICK START - This section briefly explains how the user can quickly start the SensorEval software to evaluate the ADC128D818.
2.1. Setting Up the Board – jumper the following pins 1. J4, pin 1 to pin 3 (J4.P1 to J4.P3) - source the ADC128D818 with +3.3V from the USB.
2. J10.P1 to J10.P2 - source the ADC’s reference voltage (VREF). 3. J7.P3 to J7.P4 – connect SDA to the microcontroller, U7. 4. J7.P5 to J7.P6 – connect SCL to the microcontroller, U7. 5. J7.P7 to J7.P8 – connect INT to the microcontroller, U7.
2.2. Starting Software 1. Open SensorEval Software 2. Set “I2C Addr” = 37 and make sure none of the pins on J8 is jumpered to each other. Refer to section 5.2 to change the desire address. 3. To choose a continuous register update, set the “Read Cont” field at the top of the software to ‘All Regs’ or ‘Value Regs’ (figure 1). To manually read the registers, set this field to ‘OFF’ and push the “Read Regs” button for every read.
Figure 1 – “Read Cont” field
4. To see a quick reading, jumper J5.P1 to J5.P2 to set IN0 = 1.9V. 5. Go to Configuration Adr = 00 ‘START’ bit = 1 to start monitoring. 6. Flip ‘INT#_Clear’ bit to 1 then 0 to start monitoring. 7. Go to Readings Adr 20 to read IN0’s value; it should read 1.9V. 8. For the register map, advanced tests and specific hardware set-up and software installation procedures, refer to the rest of this user’s guide and/or to the ADC128D818 datasheet for more information.
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ADC128D818 Evaluation Board User’s Guide
3. EQUIPMENT SETUP
3.1. Equipment List - The ADC128D818 setup requires the following equipments: 1. ADC128D818 Evaluation Board 2. Personal Computer with SensorEval Software 3. USB Connector 4. Power Supply (optional) 5. Oscilloscope (optional) 6. Multimeter (optional)
3.2. Equipment Connection Diagram – figure 2 shows the connection diagram between the board and the PC.
B B S S U U
Figure 2 – Equipment Connection Diagram
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ADC128D818 Evaluation Board User’s Guide
4. ADC128D818 BOARD SETUP
4.1. Component Placement Diagram
Figure 3 shows a Components Placement Diagram for the ADC128D818 Evaluation Board. Because the board was built to evaluate either the ADC128D818 or the LM96080, some of the components on the board are not needed and are thus not included in the block diagram.
The components that are shown on the diagram are critical parts that customers will use the most. The diagram however, excludes resistors, capacitors, inductors, and test pins. Furthermore, the components are not drawn to size. The purpose of the diagram is to show the location of critical components on the ADC128D818 Evaluation Board.
B S U -
1 J
Figure 3 – Components Placement Diagram
4.2. Jumper Options
Follow the jumper options below to connect the board before powering it. To use SensorEval Software to control the ADC128D818, connect the ‘Recommended’ jumpers. Since this evaluation board can be used to test the ADC128D818 or the LM96080 (not stuffed), or some of these headers are used for measurement purposes only, please do not connect the ‘Not Available’ or the ‘Prohibited’ jumpers.
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ADC128D818 Evaluation Board User’s Guide
Part# Description Pins Jumper Un-jumper
Connect SensorEval Software to NOT connecting the SensorEval Software J1 USB N/A ADC128D818 Board. ‘Recommended’ to ADC128D818 Board.
This header is used to probe the Serial J2 SMBus Connection N/A ‘Prohibited’ Clock and Serial Data Line for the I2C interface from the Cypress microcontroller.
ADC128D818’s V+ pin has to be sourced Connect +3.3V from USB to externally. In this case, connect a +3.3V DUT Pin 1 & Pin 3 ADC128D818’s V+ pin. power supply to J4.P3 and J4.P4 (GND) J4 (ADC128D818) ‘Recommended’
Power Use as ground pins for the external power Pin 2 & Pin 4 (Not Necessary) supply. Pin 1 & Pin 2 Connect IN0 to 2.0V. Source IN0 externally via a power supply.
Pin 3 & Pin 4 Connect IN1 to 2.0V. Source IN1 externally via a power supply.
Pin 5 & Pin 6 Connect IN2 to 2.0V. Source IN2 externally via a power supply.
Pin 7 & Pin 8 Connect IN3 to 2.0V. Source IN3 externally via a power supply.
Pin 9 & Pin 10 Connect IN4 to 2.0V. Source IN4 externally via a power supply.
Pin 11 & Pin 12 Connect IN5 to 2.0V. Source IN5 externally via a power supply.
Pin 13 & Pin 14 Connect IN6 to 2.0V. Source IN6 externally via a power supply.
J5 DUT Signal Side Pin 15 & Pin 16 Connect IN7 to 2.0V. Source IN7 externally via a power supply.
Pin 17 & Pin 18 Feature Not Available ‘Recommended’
Pin 19 & Pin 20 Feature Not Available ‘Recommended’
Pin 21 & Pin 22 Feature Not Available ‘Recommended’
Pin 23 & Pin 24 Feature Not Available ‘Recommended’
Pin 25 & Pin 26 Feature Not Available ‘Recommended’
Pin 1 & Pin 2 Feature Not Available ‘Recommended’
J6 LM96080 Address Pin 3 & Pin 4 Feature Not Available ‘Recommended’
Pin 5 & Pin 6 Feature Not Available ‘Recommended’
ADC128D818 Leave the GNDs un-connected J7 Pin 1 & Pin 2 Connect GND to GND. Output and Serial ‘Recommended’
Interface Connect the ADC128D818’s SDA pin to NOT using the Cypress C to interface to Pin 3 & Pin 4 the Cypress Microcontroller (C)’s SDA the ADC128D818. pin. ‘Recommended’ Connect the ADC128D818’s SCL pin to NOT using the Cypress C to interface to Pin 5 & Pin 6 the Cypress Microcontroller (C)’s SCL the ADC128D818. pin. ‘Recommended’
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ADC128D818 Evaluation Board User’s Guide
Part# Description Pins Jumper Un-jumper
Connect the ADC128D818’s INT pin to NOT connecting the INT pin to the Pin 7 & Pin 8 the Cypress Microcontroller (C)’s microcontroller. Interrupt pin. ‘Recommended’
Pin 9 & Pin 10 Feature Not Available ‘Recommended’
Pin 11 & Pin 12 Feature Not Available ‘Recommended’
Pin 4 & Pin 2 A0 = 0 V (LOW) A0 = 3.3V (HIGH)
Pin 4 & Pin 6 A0 = V+ / 2 (MID LEVEL) A0 = 3.3V (HIGH) ADC128D818 J8 Address Pin 3 & Pin 1 A1 = 0 V (LOW) A1 = 3.3V (HIGH)
Pin 3 & Pin 5 A1 = V+ / 2 (MID LEVEL) A1 = 3.3V (HIGH)
Force INT to 3.3V via pull-up resistor Pin 1 & Pin 2 Leave INT floating. Pull-Up and Pull- R30. J9 Down Force INT to ground via pull-down Pin 2 & Pin 3 Leave INT floating. resistor R42.
Source VREF externally using a power J10 LM4040 Output Pin 1 & Pin 2 Source VREF with regulator LM4040 supply. Measurements J11 ALL ‘Not Available’ ‘Not Available’ (Not Stuffed) Table I – Jumpers and Connectors Functions
4.3. Powering the Board
There are two options to power the board. The first option is to use the +3.3V from the USB to source V+. To use this option, connect J4.P1 to J4.P3. For an easy and quick start, National recommends using this option.
The second option is to leave J4.P1 and J4.P3 unconnected, and connect a power supply of +3.3V to +5.5V (as stated in the datasheet) to J4.P3 and J4.P4 (GND).
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ADC128D818 Evaluation Board User’s Guide
5. SENSOREVAL SOFTWARE
5.1. Installing the Software
1. Unzip the file “SensorEval_1.2.0v.zip” 2. Click on the SensorEval’s executable file “SensorEval_1.2.0v_Setup.exe” to install the SensorEval software. 3. When complete, click on the “Launch SensorEval.exe” icon to start the software. 4. If an ‘Open Device’ window pops up and asks to select a device file, click on the ‘ADC128D818’. 5. When a window asking for the platform (figure 4) pops up, check the “ADC128D818 Evaluation Board” and click “Ok”
Figure 4 – SensorEval Pop-Up Window
5.2. Setting the Address
The user is allowed to choose any addresses he or she desires. However, whatever addresses the user chooses, the same address must match the SensorEval’s I2C address. The following steps show how to program the address:
1. Select what address to program the EEPROM. The address bits are A1A0, where A1 is the MSB. Table I above shows how to jumper J8 in order to select the desire address. National recommends not jumpering J8 at all.
2. In the SensorEval Software, select the I2C address that matches the address bit selected in step 1. Use table II to set the correct I2C address, which is located on the top left hand corner of the SensorEval Software (figure 5). National recommends selecting I2C address 0x37 if none of the pins on J8 is jumpered.
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ADC128D818 Evaluation Board User’s Guide
A1 A0 I2C Address (hex)
LOW LOW 1Dh
LOW MID 1Eh
LOW HIGH 1Fh
MID LOW 2Dh
MID MID 2Eh
MID HIGH 2Fh
HIGH LOW 35h
HIGH MID 36h
HIGH HIGH 37h Table II - Address and I2C Address Comparison
Figure 5 – I2C Address
5.3. ADC128D818 Registers
The SensorEval software allows writing to and reading from registers. To navigate through the register map, use the tabs above the registers in the SensorEval software. For example, a sample tab can be seen in figure 6. The functionality of all ADC128D818 registers can be found in its datasheet.
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ADC128D818 Evaluation Board User’s Guide
Figure 6 – Example ADC128D818 Register in SensorEval Software
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ADC128D818 Evaluation Board User’s Guide
6. APPENDIX
6.1. Board Schematic
GND GND
J8 HEADER 3X2
2 1
3 4 A1(DUT)
5 A0(DUT) 6 SDA SCL INT GPO RST_OUT/OS V+/2 R39 10k V+/2 R38 10k TP1 TP2 TP3 GND GND GND GND GND GND CYPRESS SIGNAL SIDE SIGNAL CYPRESS 1 3 5 1 3 5 7 9 11 A0-DUT SDA-DUT SCL-DUT INT-DUT A1-DUT J6 HEADER 3X2 +3.3_VDC 7 8 2 3 6 J7 2 4 6 2 4 6 8 A0 A1 10 12 No stuff for ADC128D818 for stuff No HEADER for or 6X2 4X2 4x2 Stuff ADC128D818 INT SCL SDA A0 A1 A2
GND SDA SCL INT GPO FOOTPRINT ADC128D818CIMT-3 PACKAGE SOCKET&TSSOP
V+
+3.3VDC DUTP1b GND 5 4 RST_OUT/OS SIDE SIGNAL DUT GND R37 0 0 ohms USB Power USB R27 3.3k VREF IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7 U1-2 1 2 R32 10k 1 9 16 15 14 13 12 11 10 R30 10k R25 3.3k J4 R31 10k IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7 INT-DUT DUT Power 3 4 J9 INT SDA-DUT SCL-DUT DUT1b-VREF
R24 10k
2 4 PULL-UP
1 3 A0-DUT A1-DUT GND R23 10k LM Power Pin Power LM INT R42 10k GND IN VREF
R26 10k
22 23 24 2 3 10 11 13
2 PULL-DOWN 1 A0 A1 A2 +3.3_VDC INT SCL SDA GPO J10 HEADER 2
+3.3_VDC
GNDA C35 1uF 14
RST_OUT/OS
DUTP V+
9 1 1
GND . . C34 8 6 5 100 100 pF R22 BLACK RED 0 0 ohms
DUT1b-VREF
NC SOCKET&TSSOP PACKAGE FOOTPRINT PACKAGE SOCKET&TSSOP TJ2 TJ1
GND4
LM4140 VREF 8
IN0 IN1 IN2 IN3 IN4 IN5 IN6 FAN1 FAN2 INTIN# BTI# GPI(CI) NTEST_IN/RESET_IN GND3
U1-1 7
GND2
C33 4
4 5 1 6 7
21 20 19 18 17 16 15 12 GND1 0.1uF VertTestJack-JohnsonComp105-0852-001 VertTestJack-JohnsonComp105-0852-001 1 LM96080CIMT-3 U7 VIN ENABLE 2 3 R36 10k IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7 C32 R41 100k 100 100 pF R35 10k DUTP1b R40 100k R34 10k C36 C31 IN0 IN1 IN2 IN3 IN4 IN5 IN6 INTIN or IN7 BTI GPI/CI NTEST_IN FAN1 FAN2 STUFF NO STUFF NO 0.1uF 0.1uF DUT SIGNAL SIDE SIGNAL DUT R33 10k 0 ohms 0 ohms 0 ohms 1 3 5 7 9 11 13 15 17 19 21 23 25 R43 R44 R45 +3.3_VDC J5 for 8x2 Stuff ADC128D818 2 4 6 8 10 12 14 16 18 20 22 24 26 4.4V to 5.25V to 4.4V C30 HEADER or 8X2 13X2 rectangle white Put number. part for 100 100 pF R28 68k 1% 2V 2V 2V 2V 2V 2V 2V GND GND GND DUTP FAN1(Cypress) (Cypress) FAN2 +3.3_VDC +3.3VDC USB 5V C29 0.1uF R29 100k 1%
FAN1 FAN2
Figure 7 – ADC128D818 Evaluation Board Schematic, Page 1
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ADC128D818 Evaluation Board User’s Guide
USB 5V R47 No Stuf f (0k) INT SDA GPO 1 3 5 7 9 11 13 15 17 S5803-07-ND DigieKeyNo S5803-07-ND Header RightMale Angle J11 2 4 6 8 10 12 14 16 18 R3 0 ohms C28 0.01uF FAN2 FAN1 SCL RST_OUT/OS 4 2 21 39 48 50 65 75 94 99 27 12 19
MR_N GND2
U6 LM3722CIM5-3.08
GND1 GND2 GND3 GND4 GND5 GND6 GND7 GND8 GND9 2
AGND1 AGND2
VCC
R46 No Stuf f (0k) 5
RSVD_GND
GND1
+ + 3.3VDC 1 +3.3VDC See Sheet 1 of this schematic for schematic this of 1 Sheet See LM96163 the to interconnection circuitry. surrounding the and RESET_N INT 3 FAN1 FAN2 RST_OUT/OS GPO +3.3VDC R1 100k INT D1 FAN2 U2B Cy press CY7C68013A-100AXC Liteon-LED-GRN_LTST-C930GKT VCC1 VCC2 VCC3 VCC4 VCC5 VCC6 VCC7 VCC8 VCC9 AVCC1 AVCC2 FAN1 RST_OUT/OS GPO 1 9 20 33 38 49 53 66 78 85 16 R2 110 93 92 91 90 89 88 87 86 98 97 96 95 83 82 81 80 47 46 45 44 37 36 35 34 74 73 72 71 70 69 68 67 64 63 62 61 60 59 58 57 77 C26 0.01uF PB7/FD7 PB6/FD6 PB5/FD5 PB4/FD4 PB3/FD3 PB2/FD2 PB1/FD1 PB0/FD0 PD1/FD9 PD0/FD8 PE5/INT6 PE6/T2EX PA3/WU2 RESET_N PD7/FD15 PD6/FD14 PD5/FD13 PD4/FD12 PD3/FD11 PD2/FD10 PA2/SLOE PE2/T2OUT PE1/T1OUT PE0/T0OUT PA1/INT1_N PA0/INT0_N PA6/PKTEND PE4/RXD1OUT PE3/RXD0OUT C23 PE7/GPIFADR8 PA5/FIFOADR1 PA4/FIFOADR0 PC7/GPIFADR7 PC6/GPIFADR6 PC5/GPIFADR5 PC4/GPIFADR4 PC3/GPIFADR3 PC2/GPIFADR2 PC1/GPIFADR1 PC0/GPIFADR0 0.01uF PA7/FLGD/SLCS_N U2A C22 0.01uF Cy press CY7C68013A-100AXC C18 0.01uF RDY0/SLRD RDY1/SLWR RDY2 RDY3 RDY4 RDY5 INT5_N INT4 DMINUS DPLUS TXD0 RXD0 TXD1 RXD1 CTL0/FLAGA CTL1/FLAGB CTL2/FLAGC CTL3 CTL4 CTL5 NC1 NC2 NC3 WAKEUP WR_N RD_N BKPT SDA SCL IFCLK T0 T1 T2 XTALIN XTALOUT CLKOUT C17 0.01uF 3 4 5 6 7 8 84 22 18 17 40 41 42 43 54 55 56 51 52 76 13 14 15 79 32 31 28 30 29 26 23 24 25 11 10 100 C13 0.01uF GPO FAN1 FAN2 USB 5V +3.3VDC SDA SCL C6 RST_OUT/OS SCL SDA 0.01uF C8 12pF C5 0.01uF +3.3VDC R21 USB 5V No Stuff (1.5k) C4 0.01uF Use a 0.01 uF capacitor for each Vcc for each capacitor uF 0.01 a Use of U2 pin WAKEUP and AVcc pin and . SMBCLK SMBDAT GND +3.3V + + 3.3VDC Y1 24 MHz 1 2 3 4 C3 C14 0.01uF 0.1uF C12 0.1uF ECS-240-12-5PX-TR J2 HEADER 4 + + 3.3VDC C7 R8 C2 0.01uF 3.3k Connection SMBus 12pF C11 2.2uF
+ + 3.3VDC C1 + 3.3VDC 3 GND_SIGNAL R7 0.01uF 3.3k OUT U4 GND 2 IN LP2950CDT-3.3/TO252 1 8 7 6 5 C10 0.1uF R6 1M WP Vcc SCL SDA 1 2 3 4 5 6 C9 2.2uF D- D+ A0 A1 A2 Vss GND J1 VBUS U3 1uH L1 USB-B 1 2 3 4 SHELL_1 SHELL_2 1 uH AT24C02-10SI-2.7
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ADC128D818 Evaluation Board User’s Guide
6.2. Board Layouts
Figure 9 – Top Layer of the ADC128D818 Evaluation Board
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ADC128D818 Evaluation Board User’s Guide
Figure 10 – Bottom Layer of the ADC128D818 Evaluation Board
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ADC128D818 Evaluation Board User’s Guide
6.3. Bill of Materials
Item Qnty Reference Part Manf. Manf. Order # C1,C2,C3,C4,C5,C6,C13,C 1 13 17,C18,C22,C23,C26,C28 0.01uF Panasonic ECP-U1C103MA5 2 2 C7,C8 12pF Panasonic ECJ-2VC1H330J 3 2 C9,C11 2.2uF Panasonic ECS-T1AY225R C10,C12,C14,C29,C31,C3, 4 7 C36 0.1uF Panasonic ECP-U1C104MA5 5 3 C30,C32,C34 100 pF Panasonic ECJ-2VC1H101J 6 1 C35 1uF Panasonic ECS-T1AY225R Liteon-LED-GRN_LTST- 7 1 D1 C930GKT Lite-On LTST-C930GKT 8 1 J1 USB-B Molex 67068-0000 9 1 J2 HEADER 4 10 1 J4 DUT Power 11 1 J5 HEADER 13X2 or 8X2 12 2 J6,J8 HEADER 3X2 13 1 J7 HEADER 6X2 or 4X2 14 1 J9 INT 15 1 J10 HEADER 2 16 1 J11 Header Male Right Angle Molex 71764-0030 17 1 L1 1uH Panasonic 18 3 R1,R40,R41 100k 19 1 R2 110 20 6 R3,R22,R37,R43,R44,R45 0 ohms 21 1 R6 1M 22 4 R7,R8,R25,R27 3.3k 23 1 R21 No Stuff (1.5k) R23,R24,R26,R30,R31,R32 ,R33,R34,R35,R36,R38,R3 24 13 9,R42 10k 25 1 R28 68k 1% 26 1 R29 100k 1% 27 2 R46,R47 No Stuff (0k) VertTestJack- JohnsonComp105-0852- Johnson 28 1 TJ1 001 Components 105-0852-001 VertTestJack- JohnsonComp105-0852- Johnson 29 1 TJ2 001 Components 105-0853-001 30 3 TP1,TP2,TP3 GND Cypress CY7C68013A- CY7C68013A- 31 1 U2 100AXC Cypress 100AXC 32 1 U3 AT24C02-10SI-2.7 Atmel AT24C02-10SI-2.7 33 1 U4 LP2950CDT-3.3/TO252 National LP2950CDT-3.3 34 1 U6 LM3722CIM5-3.08 NSC LM3722EM5-3.08 35 1 U7 LM4140 National LM4140ACM-2.5 36 1 U1-1 ADC128D818CIMT-3 National 240228/ADC128D8 National Semiconductor Corporation Page 16 of 18 www.national.com
ADC128D818 Evaluation Board User’s Guide
Item Qnty Reference Part Manf. Manf. Order # 18 TSSOP16S/ADC12 37 1 U1-2 ADC128D818CIMT-3 National 8D818 ECS-240-12-5PX- 38 1 Y1 24 MHz ECS TR Table III – Bill of Material
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ADC128D818 Evaluation Board User’s Guide
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