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Schematic, PCB Layout, and Bill of Materials

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SBOU175 – October 2019

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OPA462EVM

4.4

Bill of Materials

Table 3

lists the bill of materials (BOM) used for the OPA46xEVM.

Table 3. OPA462EVM BOM

Designator

Quantity

Description

Part Number

Manufacturer

Notes

C1, C4, C11, C15

CAP, CERM, 0.1 uF, 450 V, +/- 10%, X7T, 1206_190

C3216X7T2W104K160AA

TDK

C2, C3, C5, C6

CAP, AL, 10 uF, 250 V, +/- 20%, SMD

ULR2E100MNL1GS

Nichicon

CAP, CERM, 0.1 uF, 25 V, +/- 10%, X7R, 0603

06033C104KAT2A

AVX

D1, D2

Diode, TVS, Uni, 90 V, 146 Vc, SMC

5.0SMDJ90A

Littelfuse

D3, D4

Diode, Ultrafast, 400 V, 1 A, SMB

MURS140-13-F

Diodes Inc.

H1, H2, H3, H4

MACHINE SCREW PAN PHILLIPS 4-40

9900

Keystone

H5, H6, H7, H8

2203

Keystone

J1, J2, J11

Terminal Block, 2x1, 6.35mm, Green, TH

1714955

Phoenix Contact

J3, J4, J5, J7, J10,
J12

Header, 2.54mm, 3x1, Tin, TH

68001-403HLF

FCI

J6, J8, J9

BNC Low Profile Elbow Jack, Gold, R/A, TH

5-1634513-1

TE Connectivity

R1, R8, R13

RES, 0, 5%, 0.1 W, 0603

RC0603JR-070RL

Yageo

R2, R3

RES, 100 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

CRCW0603100KFKEA

Vishay-Dale

RES, 10.0 k, 0.1%, 0.1 W, 0603

RG1608P-103-B-T5

Susumu Co Ltd

R6, R7

RES, 0, 5%, 1 W, 2512

RC6432J000CS

Samsung

SH-J1, SH-J2, SH-J3,
SH-J4, SH-J5, SH-J6

Shunt, 100mil, Gold plated, Black

881545-2

TE Connectivity

TP1, TP2, TP3, TP4,
TP5, TP6, TP9, TP10,
TP11, TP12, TP13,
TP14, TP15, TP16

Test Point, Compact, SMT

5016

Keystone

High-Voltage (180-V), High-Current (30-mA) Operational
Amplifier, G = 1 Stable, DDA0008J (SOIC-8)

OPA462IDDAR

Texas Instruments

OPA462IDDA

06033C104KAT2A

AVX

Optional-Not installed

C9, C10, C12, C14,
C17, C18

Optional-Not installed

C13, C16

Optional-Not installed

FID1, FID2, FID3

Optional-Not installed

Q1, Q2

JFET, 2-CH, N-CH, V, A, SOIC-8

IF1322A

InterFET

Optional-Not installed

R5, R11, R12

Optional-Not installed

R9, R10

Optional-Not installed

Содержание OPA462EVM

Страница 1: ... of the devices in both single and dual supply configurations This document also includes the schematic printed circuit board PCB layout and a bill of materials BOM Throughout this document the terms evaluation board evaluation module and EVM are synonymous with OPA462EVM WARNING Danger HIGH VOLTAGE This evaluation board is intended for professional use only It has exposed high voltages Do not ope...

Страница 2: ... Schematic PCB Layout and Bill of Materials 9 4 1 EVM Schematic 9 4 2 EVM Default Configuration 10 4 3 PCB Layout 11 4 4 Bill of Materials 12 List of Figures 1 Practical 20 mA Improved Howland Current Pump Circuit 6 2 Improved Howland Current Pump Output Voltage Compliance Range 7 3 Improved Howland Current Pump Applied as a Peak AC Current Generator 8 4 OPA462EVM Schematic 9 5 OPA462EVM Default C...

Страница 3: ...following documents listed in Table 1 provide information about TI s integrated circuits and support tools for the OPA462EVM Table 1 Related Documentation Document Literature Number OPA462 Product Data Sheet SBOS803 OPA445 Product Data Sheet SBOS156 1 4 Evaluation Module Limitations and Cautions As a result of the high common mode input voltage rating of the OPA462 evaluation of the device often i...

Страница 4: ...age range BNC connectors are available at both inputs to allow for easy interfacing with signal generators or other equipment Additionally signals can be input using test points TP12 IN and TP14 IN Jumpers J7 and J10 set the voltages seen at IN and IN respectively Short pins 2 and 3 of these jumpers to set the inputs to GND Short pins 1 and 2 to allow whatever voltages present at the input BNCs to...

Страница 5: ... to source more than the maximum continuous current of 30 mA The status flag can be monitored from TP2 and an external pullup voltage can be input on TP11 2 6 1 Circuit Protection The OPA462EVM is protected from inductive surges and power supply transients with the use of Schottkey diodes on the amplifier output and transient voltage suppressors on the power supply inputs See D1 D2 D3 and D4 on th...

Страница 6: ...rt information is applied here in this section as a practical use for the OPA462EVM The OPA462EVM as configured in Figure 1 sources on an output current of 20 mA when a single ended input voltage of 2 5 V is applied to the VP input If the input voltage sign is reversed the output reverses direction and sinks 20 mA The circuit in Figure 1 provides the resistance values required to obtain the correc...

Страница 7: ... This limit can be seen in Figure 2 Resistor RL can be any value from 0 Ω to 2 87 kΩ and the output will remain within the circuit linear compliance range However if the value of RL is increased further the current pump operation is forced outside the compliance range and the output current will no longer remain constant Thus increasing the value of RL to greater than 2 87 kΩ defeats the goal of p...

Страница 8: ... not always provide stability When unity gain stable op amps such as the OPA462 are employed and they drive a resistive load the op amp phase margin should be sufficient such that the circuit is stable However if the output load is complex containing both resistive and reactive components R jX there can be combinations that degrade the phase margin and instability results Degradation of the phase ...

Страница 9: ...T 16 E D Com GND E D TP T T 10 E D EXT GND 0 1uF C7 1 2 3 J4 1 2 3 J3 V SF TP T T 2 SF T TP T T 11 SF EXT GND 0 1uF C8 p D3 D4 V V 2 3 1 8 Q1A 6 7 4 5 Q2B A B C D C D 2 3 1 8 Q2A 6 7 4 5 Q1B C D A B Input Protection 2 3 1 8 Q1A 6 7 4 5 Q2 Q Q B 2 3 1 8 Q2 Q Q A 6 7 4 5 Q1B Input Protection 0 R13 0 R1 100k R3 E D Com 10uF C2 10uF C3 10uF C5 10uF C6 1 2 J1 1 2 J2 2 1 3 4 5 V V 6 8 7 9 OPA462IDDAR U1...

Страница 10: ... V V 100k R3 E D Com J8 Vout J6 In J9 In 10uF C2 10uF C3 10uF C5 10uF C6 1 2 J1 1 2 J2 2 1 3 4 5 V V 6 8 7 9 OPA462IDDAR U1 100k R2 Ext GND GND Ext 90V D1 90V D2 Schematic PCB Layout and Bill of Materials www ti com 10 SBOU175 October 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated OPA462EVM 4 2 EVM Default Configuration The OPA462EVM ships in a standard amplifier ...

Страница 11: ...n Feedback Copyright 2019 Texas Instruments Incorporated OPA462EVM 4 3 PCB Layout Figure 6 depicts the PCB layout Figure 6 OPA462EVM PCB Layout NOTE Board layout is not to scale This figure is intended to show how the board is laid out and is not intended to be used for manufacturing OPA462EVM PCBs ...

Страница 12: ...3 J4 J5 J7 J10 J12 6 Header 2 54mm 3x1 Tin TH 68001 403HLF FCI J6 J8 J9 3 BNC Low Profile Elbow Jack Gold R A TH 5 1634513 1 TE Connectivity R1 R8 R13 3 RES 0 5 0 1 W 0603 RC0603JR 070RL Yageo R2 R3 2 RES 100 k 1 0 1 W AEC Q200 Grade 0 0603 CRCW0603100KFKEA Vishay Dale R4 1 RES 10 0 k 0 1 0 1 W 0603 RG1608P 103 B T5 Susumu Co Ltd R6 R7 2 RES 0 5 1 W 2512 RC6432J000CS Samsung SH J1 SH J2 SH J3 SH J...

Страница 13: ...o change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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