EL2228C Elantec Semiconductor, EL2228C Datasheet

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EL2228C

Manufacturer Part Number
EL2228C
Description
Dual Low Noise Amplifier
Manufacturer
Elantec Semiconductor
Datasheet
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
Features
Applications
Ordering Information
• Voltage noise of only 4.9nV/ Hz
• Current noise of only 1.2pA/ Hz
• Bandwidth (-3dB) of 80MHz
• Gain-of-1 stable
• Just 4.5mA per amplifier
• 8-pin MSOP package
• ±2.5V to ±12V operation
• ADSL Filters
• HDSLII Filters
• Ultrasound input amplifiers
• Wideband Instrumentation
• Communications equipment
• Wideband sensors
EL2228CY
EL2228CY-T13
EL2228CY-T7
EL2228CS
EL2228CS-T13
EL2228CS-T7
@A
Part No.
V
= +1
Temp. Range
8-Pin MSOP
8-Pin MSOP
8-Pin MSOP
8-Pin SO
8-Pin SO
8-Pin SO
Package
13”
13”
7”
7”
-
-
MDP0043
MDP0043
MDP0043
MDP0027
MDP0027
MDP0027
Outline #
-
EL2228C - Preliminary
Dual Low Noise Amplifier
General Description
The EL2228C is a dual, low-noise amplifier, ideally suited to filtering
applications in ADSL and HDSLII designs. It feature low noise speci-
fication of just 4.9nV/ Hz and 1.2pA/ Hz, making it ideal for
processing low voltage waveforms.
The EL2228C has a -3dB bandwidth of 80MHz and is gain-of-1 sta-
ble. It also affords minimal power dissipation with a supply current of
just 4.5mA per amplifier. The amplifier can be powered from supplies
ranging from ±2.5V to ±12V.
The EL2228C is available in a space saving 8-Pin MSOP package as
well as the industry standard 8-Pin SO. It can operate over the -40°C to
+85°C temperature range.
Connection Diagram
VOUTA
VINA+
VINA-
VS-
1
2
3
4
8-Pin SO and 8-Pin MSOP
-
+
EL2228C
+
-
8
7
6
5
VS+
VOUTB
VINB-
VINB+

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EL2228C Summary of contents

Page 1

... ADSL and HDSLII designs. It feature low noise speci- fication of just 4.9nV/ Hz and 1.2pA/ Hz, making it ideal for processing low voltage waveforms. The EL2228C has a -3dB bandwidth of 80MHz and is gain-of-1 sta- ble. It also affords minimal power dissipation with a supply current of just 4.5mA per amplifier. The amplifier can be powered from supplies ranging from ± ...

Page 2

... EL2228C - Preliminary Dual Low Noise Amplifier Absolute Maximum Ratings Values beyond absolute maximum ratings can cause the device to be pre- maturely damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Supply Voltage between V + and Input Voltage ...

Page 3

... Settling to +0. + -3dB Bandwidth HD2 2nd Harmonic Distortion HD3 3rd Harmonic Distortion 1. Measured over operating temperature range 2. Slew rate is measured on rising and falling edges EL2228C - Preliminary = 420 & 25°C unless otherwise specified Condition [ for V from -4 ...

Page 4

... EL2228C - Preliminary Dual Low Noise Amplifier Typical Performance Curves Non-inverting Frequency Response for Various =200 =±12V =500 L -6 100k 1M 10M Frequency (Hz) Non-inverting Frequency Response (Gain =±12V =420 F R =500 ...

Page 5

... =+ 100k 1M 10M Frequency (Hz) -3dB Bandwidth vs ±Supply Voltage for Non- inverting Gains 80 G G=2 20 G=5 G=10 0 2.5 4.5 6.5 8.5 Supply Voltage (±V) EL2228C - Preliminary Non-inverting Frequency Response for Various =100mV =±12V =420 F -6 100M ...

Page 6

... EL2228C - Preliminary Dual Low Noise Amplifier Typical Performance Curves Peaking vs ±Supply Voltage for Non-inverting Gains 1 0.8 G=1 0.6 0.4 0.2 G=2 G=10 0 2.5 4.5 6.5 8.5 Supply Voltage (±V) Small Signal Step Response V =±12V S 20mV/div 50ns/div Large Signal Step Response V =±12V S 0.5V/div 50ns/div Peaking vs ±Supply Voltage for Inverting Gains 0.2 V =±12V S R =420 ...

Page 7

... V (±V) S CMRR 100 =± 100 1k 10k 100k 1M Frequency (Hz) EL2228C - Preliminary Differential Gain/Phase vs DC Input Voltage at 3.58MHz 0.2 V =±12V S R =420 0. =150 0.1 0.05 0 -0.05 -0.1 -0.15 100M 200M -1 -0.5 Closed Loop Output Impedance vs Frequency 100 10 1 0.1 0.01 11.2 12.6 14 10k 100k PSRR ...

Page 8

... EL2228C - Preliminary Dual Low Noise Amplifier Typical Performance Curves 1MHz 2nd and 3rd Harmonic Distortion vs Output Swing (V =±12V) S -40 -50 2ndH -60 -70 -80 -90 -100 Output Swing ( 1MHz 2nd and 3rd Harmonic Distortion vs Output Swing (single-ended) -50 -60 -70 3rd HD 2nd HD -80 ...

Page 9

... Temperature (mA Temperature - Temperature (° Temperature - Temperature (°C) EL2228C - Preliminary 3dB Bandwidth vs Temperature V =±5V S 100 100 150 - Temperature 100 150 0.1 Package Power Dissipation vs Ambient Temp. ...

Page 10

... EL2228C - Preliminary Dual Low Noise Amplifier Pin Descriptions EL2228CY EL2228CS 8- 8-Pin MSOP Pin SO Pin Name Pin Function Equivalent Circuit 10 ...

Page 11

... Applications Information Product Description EL2228C - Preliminary Dual Low Noise Amplifier 11 ...

Page 12

... EL2228C - Preliminary Dual Low Noise Amplifier General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir- cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement ...

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