ISL55210IRTZ Intersil, ISL55210IRTZ Datasheet - Page 16

• Manufacturer Part Number: ISL55210IRTZ
• Description: IC OPAMP DIFF 2200MHZ LP 16TQFN
• Manufacturer: Intersil

Specifications of ISL55210IRTZ

• Amplifier Type: Differential
• Number Of Circuits: 1
• Slew Rate: 150 V/µs
• Gain Bandwidth Product: 4GHz
• Current - Input Bias: 50µA
• Voltage - Input Offset: 100µV
• Current - Supply: 35mA
• Current - Output / Channel: 45mA
• Voltage - Supply, Single/dual (±): 3 V ~ 4.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• -3db Bandwidth: -

Layout Considerations
The ISL55210 pinout is organized to isolate signal I/O along one
axis of the package with ground, power and control pins on the
other axis. Ground and power should be planes coming into the
upper and lower sides of the package (see the Pin Configuration
on page 2). The signal I/O should be laid out as tight as possible
with parasitic C to the ground and/or power planes reduced as
much as possible by opening up those planes under the I/O
elements.
The ground pins and package backside metal contact should be
connected into a good ground plane. The power supply should
have both a large value electrolytic cap to ground, then a high
frequency ferrite beads, then 0.01µF SMD ceramic caps at the
supply pins. Some improvement in HD2 performance may be
experienced by placing and X2Y cap between the two V
and ground underneath the package on the board back side. This
is 4 terminal device that is included in the EVM board layout.
EVM Board (Rev. C)
Test circuit #1 (Figure 28) is implemented on an Evaluation
Module Board available from Intersil. This board includes a
number of optional features that are not populated as the board
is delivered. The full EVM board circuit is shown in Figure 38
where unloaded (optional) elements are shown in green.
The nominal supply voltage for the board and device is a single
3.3V supply. From this, the ISL55210, ISL55211 generates an
internal common mode voltage of approximately 1.2V. That
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make
sure you have the latest revision.
Products
Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products
address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks.
Intersil's product families address power management and analog signal processing functions. Go to
complete list of Intersil product families.
*For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page
on intersil.com:
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without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be
accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
March 2, 2011
DATE
ISL55210
FN7811.0 Initial Release
REVISION
Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted
16
For information regarding Intersil Corporation and its products, see
in the quality certifications found at
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pins
ISL55210
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voltage can be overridden by populating the two resistors and
potentiometer shown as R19 to R21 above.
The primary test purpose for this board is to implement different
interstage differential passive filters intended for the ADC
interface along with the ADC input impedances. The board is
delivered with only the output R's loaded to give a 200Ω
differential load. This is done using the two 85Ω resistors as R9
and R10, then the 4 zero ohm elements (R10, R12, R24, and R25)
and finally the two shunt elements R13 and R14 set to 35.5Ω.
Including the 50Ω measurement load on the output side of the 1:1
transformer reflecting in parallel with the two 35Ω resistors takes
the nominal AC shunt impedance to 71Ω||50Ω = 29.3Ω. This adds
to the two 85Ω series output elements to give a total load across
the amplifier outputs of 170Ω + 29.3Ω = 199.3Ω.
To test a particular ADC interface RLC filter and converter input
impedance, replace R11 and R12 with RF chip inductors, load
C10 and C11 with the specified ADC input capacitance and R26
with the specified ADC differential input R. With these loaded,
the remaining resistive elements (R24, R25, R13, R14) are set to
hit a desired total parallel impedance to implement the desired
filter (must be < than the ADC input differential R since that sits
in parallel with any "external" elements) and achieve a 25Ω
source looking into each side of the tap point transformer.
This EVM board includes a user's manual showing a number of
example circuits and tested results. Available on the Intersil web
site in the ISL55210 Product Information Page.
CHANGE
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March 2, 2011
FN7811.0
for a