551012876-001 National Semiconductor, 551012876-001 Datasheet

551012876-001

Manufacturer Part Number

551012876-001

Description

BOARD EVAL OPAMPS 8,10MSOP 8SOP

Manufacturer

National Semiconductor

Series

WEBENCH® Buildit Boardr

Datasheet

1.551012876-001.pdf (8 pages)

Specifications of 551012876-001

Channels Per Ic

2 - Dual

Amplifier Type

General Purpose

Board Type

Bare (Unpopulated)

Utilized Ic / Part

8-MSOP, 8-SOP, 10-MSOP Package

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Operating Temperature

Output Type

Current - Output / Channel

Voltage - Supply, Single/dual (±)

-3db Bandwidth

Slew Rate

Current - Supply (main Ic)

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551012876 Universal Op

Amp Evaluation Boards

(SOP and MSOP)

Overview

The 551012876 Universal Evaluation Board is designed to aid

in the evaluation and testing of National Semiconductor’s low

voltage/ low power and some precision operational amplifiers.

These boards will accommodate op amps that are assembled

in 8-pin SOP and MSOP and 10-pin MSOP.

This board is designed to evaluate one package at a time.

Many different circuits can be made such as inverting, non-

inverting, and differential-IN-differential-OUT amplifiers and

low-pass, high-pass, band-pass, band-reject, or notch sec-

ond-order filters. The amplifiers can be powered with single

or dual supplies. These circuits can be configured without any

modifications to the board; all that is necessary is to select the

correct resistors and capacitors. The other optional compo-

nents can be left open or shorted depending on the configu-

ration desired.

This universal evaluation board is designed as a two-layer

board; the top side is designed for op amps in 8-pin SOP and

8-pin MSOP as shown in Figure 1.

The bottom side of this board is designed for op amps in the

10-pin MSOP as shown in Figure 2. The board has been

manufactured with vias connecting the equivalent pins of the

top and bottom amplifiers. For example, Pin 1 of IC

top side is connected to Pin 1 of IC

ilarly all other equivalent pins of the top and bottom amplifiers

are connected. The 10-pin MSOP on the bottom side has

connections for enabling and disabling the op amps. This

PCB setup allows for an efficient use of one board to test am-

plifiers of different package types while keeping the same

components on the board; just make sure that only one pack-

age is soldered to the same pads.

Circuit performance of this evaluation board will be compa-

rable to final production designs. Use this evaluation board as

a guide for general layout and a tool to aid in device testing

and characterization.

FIGURE 1. Connection Diagram for 8-Pin SOP and MSOP

WEBENCH

is a registered trademark of National Semiconductor Corporation.

on the bottom side. Sim-

300155

30015501

on the

National Semiconductor

Application Note 1612

Mike Stout

July 2007

Hardware Setup

COMPONENT NOTATION

The pins of the footprints for the 8-Pin SOP and MSOP on the

top side are connected and are also connected to the equiv-

alent pins for the footprint of the 10-Pin MSOP on the bottom

side. Each of these packages contains two amplifiers, which

will be referred to as Amp A and Amp B. The subscript of the

PCB component refers to the specific amplifier; for example,

components will be referred to, as an example, C

Amp A this refers to component C

to component C

In some circuits, a resistor will be installed where the PCB is

labeled for a capacitor or a capacitor will be installed where a

resistor is labeled. For example, CR6 indicates that a capac-

itor should be in the R

be installed in the C

POWER

Power is applied to the points labeled J4 for V

J7 for GND. If a single supply is used, then V

nected to GND. A virtual ground, halfway between the positive

supply voltage and ground, is the reference point for the input

and output voltages. The output voltage swings above and

below this virtual ground. Single-supply operation requires

the generation of this virtual ground, usually at a voltage equal

to V

capacitor C

ducted noise or transients on the positive supply rail.

and R

FIGURE 2. Connection Diagram for 10-Pin MSOP

is used for Amp A and R

/2. The circuit in Figure 3 can be used to generate V

should be of equal values. This junction along with

will form a low-pass filter used to eliminate con-

position.

position. R

for Amp B. In this document,

, if using Amp B this refers

means that a resistor will

−

should be con-

, J6 for V

30015502

www.national.com

. If using

, and

/2;

Related parts for 551012876-001

551012876-001 Summary of contents

Page 1

... Universal Op Amp Evaluation Boards (SOP and MSOP) Overview The 551012876 Universal Evaluation Board is designed to aid in the evaluation and testing of National Semiconductor’s low voltage/ low power and some precision operational amplifiers. These boards will accommodate op amps that are assembled in 8-pin SOP and MSOP and 10-pin MSOP. ...

Page 2

FIGURE 3. Single Supply Virtual Ground OP AMP Solder a dual op amp package to either the top IC bottom IC position. The package outline, showing pin each side of the PCB BYPASSING Install the following ...

Page 3

ACTIVE FILTER APPLICATIONS Both Sallen-Key and Multiple Feedback filters can be built on this PCB. To design a filter, use the WEBENCH www.national.com. Performance at high frequencies is limit the gain bandwidth product of the amplifier, but within ...

Page 4

FIGURE 9. Multiple Feedback High-Pass Filter SALLEN-KEY BAND-PASS FILTER The following are the instructions for configuring a band-pass filter. C Short 3 R Short 13 R Output series resistance (used for matching 7 transmission lines or isolation) R Input Termination ...

Page 5

DIFFERENTIAL INPUT, DIFFERENTIAL OUTPUT, NON- INVERTING Combining two non-inverting amplifiers with a common feed- back network, as shown in Figure 13, forms a non-inverting amplifier with a differential input and a differential output. Through the inherent cancellation of the two ...

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551012876-001 National Semiconductor, 551012876-001 Datasheet

551012876-001

Specifications of 551012876-001

Related parts for 551012876-001

551012876-001 Summary of contents

Page 1

Page 2

Page 3

Page 4

Page 5

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Page 8

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