
1
FN6287.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
ISL55020
Wideband, Low Distortion, Differential
Amplifier
The ISL55020 is fully differential wideband amplifier
designed to drive differential ADCs. This device features a
high drive capability of 100mA, low operating quiescent
current of 21mA and operates with both single and dual
supplies over a range of 4.5V (±2.25V) to +12V (±6V). Key
features include high impedance, full differential inputs and
full differential or DC referenced complementary single-
ended outputs A wide bandwidth unity gain common mode
(VCM) amplifier input is included to provide DC offset
correction or common mode signal injection to the
differential output.
The ISL55020 is available in the thermally-enhanced 16 Ld
QFN package and is specified for operation over the full
-40°C to +85°C temperature range. The ISL55020 has an
EN pin to disable the outputs.
Features
Fully differential current feedback amplifier
High impedance differential inputs
Differential output drives up to 100mA from a +12V supply
Separate unity-gain common mode input (VCM)
300MHz bandwidth
1200V/μs Slewrate
-73.3dBc typical driver output distortion at 10V
PP
; 1MHz
-64.6dBc typical driver output distortion at 10V
PP
; 4MHz
Low quiescent supply current of 21mA
Pb-free plus anneal available (RoHS compliant)
Applications
High Linearity ADC preamplifier
Differential driver
Wireless communication receiver
Differential active filter
Pinout
ISL55020
(16 LD QFN)
TOP VIEW
Ordering Information
PART NUMBER
(Note)
PART
MARKING
TAPE &
REEL
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL55020IRZ
55020IRZ
-
16 Ld QFN MDP0046
ISL55020IRZ-T13
55020IRZ
13”
16 Ld QFN MDP0046
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
1
2
3
4
12
11
10
9
5
6
7
8
16
15
14
13
NC
FB+
IN+
GND
V
N
V
E
O
N
V
O
NC
FB-
IN-
NC
+1
+
-
+
-
Data Sheet
December 18, 2006