ISL2109025EV1Z Intersil, ISL2109025EV1Z Datasheet

ISL2109025EV1Z

Manufacturer Part Number

ISL2109025EV1Z

Description

Power Management IC Development Tools ISL2109025 EVAL BOARD 1- 8LD SOIC - RoHS Compliant

Manufacturer

Intersil

Type

Voltage Referencesr

Datasheet

1.ISL2109025EV1Z.pdf (3 pages)

Specifications of ISL2109025EV1Z

Rohs

yes

Product

Evaluation Boards

Tool Is For Evaluation Of

ISL21090

Output Voltage

5 V

For Use With

ISL21090

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ISL21090XXEV1Z User’s Guide

Introduction

The ISL21090XXEV1Z evaluation board is designed to

measure the performance of the high precision ISL21090

voltage reference. The reference has a wide input voltage

range from the individual threshold voltage to 36V and an

initial accuracy of 0.02% to 0.035%. The voltage noise of

1µV

maximum output voltage temperature coefficient of 7 ppm/°C

make the ISL21090 ideal for high end applications.

The evaluation board includes voltage input test points (VIN

and GND) for a power supply input, as well as a pair of test

points for the output (VOUT and GND). Additionally, a

jumperable R-C damper network can connectL to VOUT (J1),

and R2 accepts surface mount or through-hole style resistors

for output load testing.

Reference Documents

• ISL21090 Datasheet

ISL2109012EV1Z

ISL2109025EV1Z

ISL2109050EV1Z

ISL2109075EVAL1Z

February 25, 2013

AN1764.1

BOARD NUMBER

P-P

in the 0.1Hz to 10Hz range (1.25V option) and

TABLE 1. ORDERING INFORMATION

OUTPUT VOLTAGE

FN6993

1.25

2.5

5.0

7.5

(V)

Evaluation Board

FIGURE 1. VOLTAGE REFERENCE EVALUATION BOARD

TYPE

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

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

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

ISL21090XXEV1Z Board

The schematic of the evaluation board is shown in Figure 5.

The ISL21090XXEV1Z contains the ISL21090 voltage

reference (U1), input decoupling capacitors (C1, C2), a

compensation capacitor (C5), and a load capacitor (C3).

The power supply leads attach to TP1 and TP2 (VIN, GND). The

output is measured at test points TP3 and TP4 (VOUT, GND), and

is best measured with a high quality voltmeter.

The R-C damper network is populated and can be connected to

the reference output by adding a shunt to the R-C jumper (J1).

The damper network improves stability by reducing transient

load ringing with high value (>0.47µF) capacitors.

DEVICE #

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

TABLE 2. COMPONENTS PARTS LIST

ISL21090

0.01µF

2.21kΩ

VALUE

0.1µF

10µF

DNP

1nF

Application Note 1764

Bypass Capacitor

Load Capacitor

Damper Capacitor

Compensation Capacitor

Damper Resistor

Optional Load Resistor

SOIC 8-Pin Package

Damper Jumper

DESCRIPTION

Author: Dan Goodhew

Related parts for ISL2109025EV1Z

ISL2109025EV1Z Summary of contents

Page 1

... R2 accepts surface mount or through-hole style resistors for output load testing. Reference Documents • ISL21090 Datasheet FN6993 TABLE 1. ORDERING INFORMATION OUTPUT VOLTAGE BOARD NUMBER (V) ISL2109012EV1Z 1.25 Evaluation Board ISL2109025EV1Z 2.5 Evaluation Board ISL2109050EV1Z 5.0 Evaluation Board ISL2109075EVAL1Z 7.5 Evaluation Board 1 February 25, 2013 AN1764.1 ISL21090XXEV1Z Board The schematic of the evaluation board is shown in Figure 5 ...

Page 2

... Voltage Reference Evaluation Board Layout FIGURE 2. TOP COMPONENTS 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 3

ISL21090XXEV1Z Schematic GND VIN TP2 TP1 C2 C1 VOUT TP3 SOIC8 J1 GENERIC PACK LOAD FIGURE 5. SCHEMATIC ...

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