Datasheet > ISL28210SOICEVAL1Z

ISL28210SOICEVAL1Z

更新时间： 2024-09-16 12:22:47

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
4页	344K
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ISL28210SOICEVAL1Z Evaluation Board Userâs Guide

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Application Note 1594

ISL28210SOICEVAL1Z Evaluation Board User’s Guide

Introduction

Power Supplies (Figure 1)

The ISL28210SOICEVAL1Z evaluation board is designed

to evaluate the performance of the ISL28210 Precision

Low Noise JFET Operational Amplifier. The ISL28210 is a

dual JFET amplifier that features low noise, high slew

rate, low input bias current and low offset voltage. With a

wide operating range from 9V to 40V, in combination with

its high precision, low noise and high speed operation,

the ISL28210 is ideal for precision medical and

External power connections are made through the V+,

V-, VREF, and GND connections on the evaluation board.

The circuit can operate from a single supply or from dual

supplies. For single supply operation, the V- and GND

pins are tied together to the negative or ground

reference of the power supply. For split supplies, V+ and

V- terminals connect to their respective supply terminals.

De-coupling capacitors C2 and C4 provide low-frequency

power-supply filtering, while additional capacitors, C3

and C5, which are connected close to the part, filter out

high frequency noise. Anti-reverse diode D1 (optional)

protects the circuit in the momentary case of accidentally

reversing the power supplies to the evaluation board.

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.

instrumentation, sensor conditioning, power supply

control and photodiode amplifiers.

Reference Documents

• ISL28210 Data Sheet, FN6639

Evaluation Board Key Features

• Single Supply Operation: +9V to +40V

• Dual Supply Operation: ±4.5V to ±20V

• Singled-Ended or Differential Input Operation

• External VREF input

VREF

V+

V-

• Banana Jack Connectors for Power Supply and VREF

Inputs

• BNC Connectors for Op Amp Input and Output

Terminals

1µF

• Convenient PCB Pads for Op Amp Input/Output

Impedance Loading

CLOSE TO DUT

0.01µF

FIGURE 1. POWER SUPPLY CIRCUIT

R13/R23

100kΩ

INA- 2

INB- 6

+4.5V

R11/R24

TO +20V

V+

ISL28210

V-

1/7

10kΩ

R14/R21

OUT

INA+ 3

INB+ 5

PRECISION

SENSOR

10kΩ

GAIN = -10V/V

-4.5V TO -20V

R18/R19

100kΩ

REF

FIGURE 2. PRECISION AMPLIFIER WITH G = -10V/V

October 1, 2010

AN1594.0

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

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