ISL28248MSOPEVAL1Z Intersil, ISL28248MSOPEVAL1Z Datasheet
ISL28248MSOPEVAL1Z
Manufacturer Part Number
ISL28248MSOPEVAL1Z
Description
EVAL BOARD FOR ISL28248 MSOP
Manufacturer
Intersil
Datasheet
1.ISL28258SOICEVAL1Z.pdf
(4 pages)
Specifications of ISL28248MSOPEVAL1Z
Channels Per Ic
2 - Dual
Amplifier Type
General Purpose
Output Type
Rail-to-Rail
Slew Rate
4 V/µs
-3db Bandwidth
13MHz
Current - Supply (main Ic)
900µA
Voltage - Supply, Single/dual (±)
2.4 V ~ 5.5 V, ±1.2 V ~ 2.75 V
Board Type
Fully Populated
Utilized Ic / Part
ISL28248
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Current - Output / Channel
-
Introduction
The ISL282X8MSOPEVAL1Z and ISL282X8SOICEVAL1Z
evaluation board are design platforms containing all the
circuitry needed to characterize critical performance
parameters of the ISL282X8 operational amplifiers in both
MSOP-8 and SOIC-8 packages, using a variety of user
defined test circuits.
The ISL28238 and ISL28248 high-speed operational
amplifiers feature low power consumption, while ISL28258
and ISL28268 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
• ISL28238 Data Sheet, FN6336
• ISL28248 Data Sheet, FN6337
• ISL28258 Data Sheet, FN6377
• ISL28268 Data Sheet, FN6378
Evaluation Board Key Features
The ISL282xEVAL1Z 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
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.
Power Supplies
External power connections are made through the +V, -V,
VREF and Ground connections on the evaluation board.
VCM
IN-
IN+
VREF
®
VREF
GND
IN +
1
IN -
Application Note
ISL282X8MSOPEVAL1Z ISL282X8SOICEVAL1Z
FIGURE 2. BASIC AMPLIFIER CONFIGURATION
10kΩ
10kΩ
RIN-
RIN+
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
REF+
100kΩ
IN-
IN+
+
-
Evaluation Board User’s Guide
User-selectable SMA edge connectors are also provided for
+V and -V. 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 0Ω resistors. These resistors are 0Ω but can be
changed by the user to provide additional power supply
filtering, or to reduce the voltage rate-of-rise to less than
±1V/µS. Two additional capacitors, C3 and C5 are
connected close to the part to filter out high frequency noise.
Anti-reverse diode D1 protects the circuit in the case of
accidental polarity reversal (see Figure 1).
Amplifier Configuration
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
100kΩ
RF
August 28, 2008
VM
J6
V+
VP
V-
All other trademarks mentioned are the property of their respective owners.
0.01µF
4.7µF
V-
|
FIGURE 1. POWER SUPPYLY CIRCUIT
C2
C3
Intersil (and design) is a registered trademark of Intersil Americas Inc.
J8
ISL282X8 (1/2)
Copyright Intersil Americas Inc. 2008. All Rights Reserved
D1
0Ω
0.01µF
J11
4.7µF
C4
C5
V+
J12
10kΩ
RL
J13
VREF
AN1419.0
VOUT
J14
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ISL28248MSOPEVAL1Z Summary of contents
Page 1
... J11 V- V+ VREF J8 J12 J13 C2 C4 4.7µF 4.7µ 0.01µF 0.01µF D1 FIGURE 1. POWER SUPPYLY CIRCUIT ISL282X8 (1/2) 0Ω VOUT RL 10kΩ | Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2008. All Rights Reserved J14 ...
Page 2
VREF should not be left floating. User-selectable Options Component pads are included to enable a variety of user-selectable ...
Page 3
ISL282X8EVAL1Z Top View (SOIC Shown) 3 Application Note 1419 AN1419.0 August 28, 2008 ...
Page 4
... J6 0 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 ...