Datasheet > ISL282X7SOICEVAL2Z

ISL282X7SOICEVAL2Z

更新时间： 2024-11-28 11:11:51

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
4页	246K
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Evaluation Board User’s Guide

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Application Note 1509

ISL282X7SOICEVAL2Z Evaluation Board User’s Guide

but can be changed by the user to provide additional

Introduction

power supply filtering, or to reduce the voltage rate-of-rise

The ISL282X7SOICEVAL2Z evaluation board is a design

to less than ±1V/µs. Two additional capacitors, C3 and C5

platform containing all the circuitry needed to

are connected close to the part to filter out high frequency

characterize critical performance parameters of the

noise. Anti-reverse diode D1 protects the circuit in the

ISL282X7 operational amplifiers in SOIC-8 package,

case of accidental polarity reversal.

using a variety of user defined test circuits.

J11

V+

VREF

V-

The ISL282X7 operational amplifiers feature low bias

current, low noise, and low offset and temperature drift.

J12

J13

J14

Reference Documents

• ISL28207 Data Sheet, FN6631

1µF

• ISL28217 Data Sheet, FN6632

• ISL28227 Data Sheet, FN6633

Evaluation Board Key Features

The ISL282X7SOICEVAL2Z is designed to enable the IC

to operate from a single supply, +4.5VDC to +40VDC or

from split supplies, ±2.25VDC to ±20V. 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.

0.01µF

FIGURE 1. POWER SUPPLY CIRCUIT

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.

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

respective power supply terminals. De-coupling capacitors

C2 and C4 connect to their respective supplies through

R16 and R31 zero-ohm resistors. These resistors are 0Ω

ISL282X7 (1/2)

100kΩ

IN -

RIN-

IN-

0Ω

V+

V-

10k

VOUT

RIN+

IN+

10kΩ

IN +

VREF

VCM

RREF+

DNP

100kΩ

GND

VREF

FIGURE 2. BASIC AMPLIFIER CONFIGURATION

November 6, 2009

AN1509.0

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

1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

12 3 4

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与ISL282X7SOICEVAL2Z相关器件

型号	品牌	获取价格	描述	数据表
ISL28325	INTERSIL	获取价格	40V Low Power Dual and Quad Operational Amplifier
ISL28325FBZ	INTERSIL	获取价格	40V Low Power Dual and Quad Operational Amplifier
ISL28325FBZ	RENESAS	获取价格	40V Low Power Dual and Quad Operational Amplifier; MSOP8, SOIC8; Temp Range: -40°
ISL28325FBZ-T	RENESAS	获取价格	DUAL OP-AMP, 1000uV OFFSET-MAX, 1.2MHz BAND WIDTH, PDSO8, ROHS COMPLIANT, PLASTIC, MS-012,
ISL28325FBZ-T13	RENESAS	获取价格	40V Low Power Dual and Quad Operational Amplifier; MSOP8, SOIC8; Temp Range: -40°
ISL28325FBZ-T7	RENESAS	获取价格	40V Low Power Dual and Quad Operational Amplifier; MSOP8, SOIC8; Temp Range: -40°
ISL28325FBZ-T7A	RENESAS	获取价格	40V Low Power Dual and Quad Operational Amplifier; MSOP8, SOIC8; Temp Range: -40°
ISL28325FUZ	INTERSIL	获取价格	40V Low Power Dual and Quad Operational Amplifier
ISL28325FUZ	RENESAS	获取价格	40V Low Power Dual and Quad Operational Amplifier; MSOP8, SOIC8; Temp Range: -40°
ISL28325FUZ-T	RENESAS	获取价格	DUAL OP-AMP, 1000uV OFFSET-MAX, 1.2MHz BAND WIDTH, PDSO8, ROHS COMPLIANT, PLASTIC, MO-187A

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