ISL28191EVAL1Z Intersil, ISL28191EVAL1Z Datasheet

ISL28191EVAL1Z

Manufacturer Part Number

ISL28191EVAL1Z

Description

EVALUATION BOARD FOR ISL28191

Manufacturer

Intersil

Datasheets

1.ISL28190EVAL1Z.pdf (4 pages)

2.ISL28191EVAL1Z.pdf (16 pages)

Specifications of ISL28191EVAL1Z

Channels Per Ic

1 - Single

Amplifier Type

Voltage Feedback

Output Type

Single-Ended, Rail-to-Rail

Slew Rate

17 V/µs

-3db Bandwidth

61MHz

Current - Output / Channel

130mA

Operating Temperature

-40°C ~ 125°C

Current - Supply (main Ic)

2.6mA

Voltage - Supply, Single/dual (±)

3 V ~ 5.5 V, ±1.5 V ~ 2.75 V

Board Type

Fully Populated

Utilized Ic / Part

ISL28191

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ISL28191EVAL1Z

Manufacturer:

Intersil

Quantity:

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Introduction

The ISL2819xEVAL1Z evaluation board is a design platform

containing all the circuitry needed to characterize critical

performance parameters of the ISL28190 and ISL28191

single operational amplifiers, using a variety of user defined

test circuits.

The ISL28190 and ISL28191 amplifiers feature ultra-low

noise, ultra-low distortion, and rail-to-rail output drive

capability. They are designed to operate with single and dual

supplies from +5.5VDC (±2.75VDC) down to +3VDC

(±1.5VDC).

Reference Documents

• ISL28190 Data Sheet, FN6247

• ISL28191 Data Sheet, FN6156

Evaluation Board Key Features

The ISL2819xEVAL1Z is designed to enable the IC to

operate from a single supply (+3VDC to +5.5VDC), or from

split supplies (±1.5VDC to ±2.75V). The board is configured

for a single op amps 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 is 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+

and V- terminals connect to their respective power supply

terminals. De-coupling capacitors C

ground through R

VCM

IN-

IN+

and R

VREF

(Figure 1)

VREF

0Ω resistors. Resistors R

GND

IN +

IN -

ISL2819xEVAL1Z Evaluation Board User’s Guide

Application Note

andC

FIGURE 2. BASIC AMPLIFIER CONFIGURATION

0Ω

connect to

499Ω

RIN-

RIN+

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

and

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

RREF+

4.99kΩ

10kΩ

IN-

IN+

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 3VDC to +5.5VDC supply, or from dual

supplies from ±1.5VDC to ±2.75VDC. 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.

4.99kΩ

and C

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

0.1µF

August 6, 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

ISL2819x

R21

0Ω

50Ω

0Ω

(Figure 2)

4.7µF

and D

VOUT

AN1348.0

protect the

V+

0.1µF

Related parts for ISL28191EVAL1Z

ISL28191EVAL1Z Summary of contents

Page 1

... All other trademarks mentioned are the property of their respective owners. AN1348.0 and D protect the R21 0Ω 0Ω 4.7µF 4.7µ 0.1µ FIGURE 1. POWER SUPPLY CIRCUIT (Figure 2) ISL2819x 50Ω VOUT Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007. All Rights Reserved C3 ...

Page 2

... CAP, SMD, 0603, DNP-PLACE HOLDER, ROHS D1, D2 DIODE-RECTIFIER, SMD, SOD-123, 2P, 40V, 0.5A, ROHS U1 (ISL28190EVAL1Z) ISL28190FHZ-T7, IC-RAIL-TO-RAIL OP AMP, SOT-23, ROHS U1 (ISL28191EVAL1Z) ISL28191FHZ-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

ISL2819xEVAL1Z Top View 3 Application Note 1348 AN1348.0 August 6, 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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