ISL28214SOICEVAL2Z Intersil, ISL28214SOICEVAL2Z Datasheet

ISL28214SOICEVAL2Z

Manufacturer Part Number

ISL28214SOICEVAL2Z

Description

EVALUATION BOARD FOR ISL28214

Manufacturer

Intersil

Datasheets

1.ISL28114SOT23EVAL1Z.pdf (21 pages)

2.ISL28213SOICEVAL2Z.pdf (4 pages)

Specifications of ISL28214SOICEVAL2Z

Channels Per Ic

2 - Dual

Amplifier Type

General Purpose

Output Type

Rail-to-Rail

Slew Rate

2.5 V/µs

Current - Output / Channel

31mA

Operating Temperature

-40°C ~ 125°C

Current - Supply (main Ic)

300µA

Voltage - Supply, Single/dual (±)

2.4 V ~ 5.5 V, ±1.2 V ~ 2.75 V

Board Type

Fully Populated

Utilized Ic / Part

ISL28214

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

-3db Bandwidth

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ISL28213/14SOICEVAL2Z Evaluation Board User’s

Guide

Introduction

The ISL28213/14SOICEVAL2Z evaluation board is a

design platform containing all the circuitry needed to

characterize critical performance parameters of the

ISL28213 and ISL28214 operational amplifiers, using a

variety of user defined test circuits.

The ISL28213 and ISL28214 CMOS operational

amplifiers feature low power consumption, low input bias

current, and rail-to-rail input and output drive capability.

They are designed to operate with a single lithium cell or

two Ni_Cd batteries.

Reference Documents

• ISL28213/14SOICEVAL2Z Evaluation Board User’s

• ISL28213 Data Sheet,

• ISL28214 Data Sheet,

Evaluation Board Key Features

The ISL28213/14SOICEVAL2Z is designed to enable the

IC to operate from a single supply, +2.4VDC to +5.5VDC

or from split supplies, ±1.2VDC to ±2.75V. The board is

configured for a dual op amp connected for differential

input with a closed loop gain of 10. A single external

reference voltage (VREF) pin and provisions for a

user-selectable voltage divider - filter are included.

Power Supplies (Figure 1)

External power connections are made through the +V, -V,

VREF and Ground connections on the evaluation board.

For single supply operation, the -V and Ground pins are

tied together to the power supply negative terminal. For

split supplies, +V and -V terminals connect to their

January 19, 2010

AN1519.0

Guide

VCM

IN-

IN+

VREF

FN6728

FN6800

GND

IN +

IN -

FIGURE 2. BASIC AMPLIFIER CONFIGURATION

1-888-INTERSIL or 1-888-468-3774

0Ω

10k

RIN-

RIN+

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

RREF+

100k

10k

IN+

IN-

Application Note 1519

respective power supply terminals. De-coupling

capacitors C2 and C4 connect to their respective supplies

through R16 and R31 0Ω resistors. These resistors are

0Ω, but can be changed by the user to provide additional

power supply filtering. Two additional capacitors, C3 and

C5, are connected close to the DUT to filter out high

frequency noise. Anti-reverse diode D1 protects the

circuit in the case of accidental polarity reversal.

Amplifier Configuration

(Figure 2)

The schematic of 1/2 of the op-amp with the components

supplied is shown in Figure 2. The circuit implements a

differential input amp with a closed loop gain of 10. The

circuit can operate from a single supply or from dual

supplies. The VREF pin must be connected to ground to

establish a ground referenced input for dual supply

operation, or can be externally set to any reference level

for single supply operation. VREF should not be left

floating.

100k

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

0.01µF

V+

V-

FIGURE 1. POWER SUPPLY CIRCUIT

V-

1µF

TO DUT

0.01µF

ISL28213, ISL28214 (1/2)

0Ω

1µF

V+

10k

VREF

VOUT

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ISL28214SOICEVAL2Z Summary of contents

Page 1

... VM 10k RREF+ 100k 0Ω 10k CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. V+ VREF C2 C4 1µF 1µ DUT C5 0.01µ ...

Page 2

User-selectable Options (Figures 3 and 4) Component pads are included to enable a variety of user- selectable circuits to be added to the amplifier VREF, inputs, outputs, and the amplifier feedback loops. The inputs (Figure 3) have additional resistor, capacitor, ...

Page 3

... ISL28213/14SOICEVAL2Z Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that the Application Note or Technical Brief is current before proceeding. For information regarding Intersil Corporation and its products, see www.intersil.com ...

Page 4

ISL28213/14SOICEVAL2Z Schematic Diagram IN DNP J2 R2 DNP J3 R7 DNP J4 R8 DNP V- V+ VREF C2 C4 1µF 1µF D1 CLOSE TO DUT C3 C5 0.01µF 0.01µF IN+ NODE OUT OUT NODE IN+ R10 R12 ...

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