ISL28156EVAL1Z Intersil, ISL28156EVAL1Z Datasheet

ISL28156EVAL1Z

Manufacturer Part Number

ISL28156EVAL1Z

Description

EVALUATION BOARD FOR ISL28156

Manufacturer

Intersil

Datasheets

1.ISL28136EVAL1Z.pdf (4 pages)

2.ISL28156EVAL1Z.pdf (13 pages)

Specifications of ISL28156EVAL1Z

Channels Per Ic

1 - Single

Amplifier Type

General Purpose

Output Type

Single-Ended, Rail-to-Rail

Slew Rate

0.05 V/µs

Current - Output / Channel

31mA

Operating Temperature

-40°C ~ 125°C

Current - Supply (main Ic)

39µA

Voltage - Supply, Single/dual (±)

2.4 V ~ 5.5 V, ±1.2 V ~ 2.75 V

Board Type

Fully Populated

Utilized Ic / Part

ISL28156

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

-3db Bandwidth

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Introduction

The ISL281x6EVAL1Z evaluation board is a design platform

containing all the circuitry needed to characterize critical

performance parameters of the ISL281x6 operational

amplifiers, using a variety of user defined test circuits.

The ISL28136 and ISL28146 high-speed operational

amplifiers feature low power consumption, while ISL28156

and ISL28166 operational amplifiers feature ultra-low power

consumption. All op amps have rail-to-rail output drive

capability and are designed to operate with a single lithium

cell or two Ni_Cd batteries.

Reference Documents

• ISL28136 Data Sheet, FN6153

• ISL28146 Data Sheet, FN6321

• ISL28156 Data Sheet, FN6154

• ISL28166 Data Sheet, FN6155

Evaluation Board Key Features

The ISL281x6EVAL1Z 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 single op amp connected for differential input with a

closed loop gain of 10. It also contains a single external

reference voltage (VREF) pin and provisions for a

user-selectable voltage divider (filter are included).

Power Supplies (

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

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+

VCM

IN-

IN+

VREF

Figure 1

VREF

GND

IN+

IN -

)

ISL281x6EVAL1Z Evaluation Board User’s Guide

Application Note

FIGURE 2. BASIC AMPLIFIER CONFIGURATION

0Ω

10kΩ

RIN-

RIN+

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

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

RREF+

100kΩ

10kΩ

IN-

IN+

and V- terminals connect to their respective power supply

terminals. De-coupling capacitors C

ground through R

additional power supply filtering, or to reduce the voltage

rate-of-rise to less than ±1V/µs. Two additional capacitors,

frequency noise. Anti-reverse diodes D

circuit in the case of accidental polarity reversal.

Amplifier Configuration (

The schematic 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 can be connected to ground to establish a ground

referenced input for split supply operation, or can be

externally set to any reference level for single supply

operation.

100kΩ

and C

are 0Ω but can be changed by the user to provide

0.1µF

August 17, 2007

V+

V-

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

are connected close to the part to filter out high

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

FIGURE 1. POWER SUPPLY CIRCUIT

4.7µF

and R

ISL281x6

R21

0Ω

0Ω resistors. Resistors R

10kΩ

Figure 2

and C

4.7µF

and D

connect to

)

VOUT

AN1351.0

protect the

V+

0.1µF

and

Related parts for ISL28156EVAL1Z

ISL28156EVAL1Z Summary of contents

Page 1

... Resistors and D protect the R21 4.7µF 4.7µ 0.1µ FIGURE 1. POWER SUPPLY CIRCUIT ) Figure 2 ISL281x6 0Ω VOUT RL 10kΩ Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007. All Rights Reserved and 20 C3 ...

Page 2

... D1, D2 DIODE-RECTIFIER, SMD, SOD-123, 2P, 40V, 0.5A, ROHS U1 (ISL28136EVAL1Z) ISL28136FHZ-T7, IC-RAIL-TO-RAIL OP AMP, SOT-23,ROHS U1 (ISL28146EVAL1Z) ISL28146FHZ-T7, IC-RAIL-TO-RAIL OP AMP, SOT-23, ROHS U1 (ISL28156EVAL1Z) ISL28156FHZ-T7, IC-RAIL-TO-RAIL OP AMP, SOT-23, ROHS U1 (ISL28166EVAL1Z) ISL28166FHZ-T7, IC-RAIL-TO-RAIL OP AMP, SOT-23, ROHS R2, R3, R6, R8, R9, R12, R13, RESISTOR, SMD, 0603, 0.1%, MF, DNP-PLACE HOLDER R15, R16, R23, R25, R27 R1, R10, R11, R17, R20, R21, RES, SMD, 0603, 0Ω ...

Page 3

ISL281x6EVAL1Z Top View 3 Application Note 1351 AN1351.0 August 17, 2007 ...

Page 4

... J4 R17 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 ...

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