el2070 Intersil Corporation, el2070 Datasheet

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el2070

Manufacturer Part Number
el2070
Description
200mhz Current Feedback Amplifier
Manufacturer
Intersil Corporation
Datasheet

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200MHz Current Feedback Amplifier
Built using an advanced complementary bipolar process, this
amplifier uses current-mode feedback to achieve more
bandwidth at a given gain than conventional operational
amplifiers. Designed for closed-loop gains of ±1 to ±8, the
EL2070 has a 200MHz -3dB bandwidth (A
settling to 0.05% while consuming only 15mA of supply
current. Furthermore, the fast disable/enable times of
200ns/100ns allow rapid analog multiplexing.
The EL2070 is an obvious high-performance solution for
video distribution and line-driving applications, especially
when its disable feature can be used for fast analog
multiplexing. Furthermore, the low 15mA supply current, and
the very low 5mA of supply current when disabled suggest
use in systems where power is critical. With differential
gain/phase of 0.02%/0.01°, gu aranteed video specifications,
and a minimum 50mA output drive, performance in these
areas is assured.
The EL2070’s settling to 0.05% in 12ns, low distortion, and
ability to drive capacitive loads make it an ideal flash A/D
driver. The wide 200MHz bandwidth and extremely linear
phase allow unmatched signal fidelity. D/A systems can also
benefit from the EL2070, especially if linearity and drive
levels are important.
Pinout
Manufactured under U.S. Patent No. 4,893,091
The EL2070 is a wide bandwidth, fast
settling monolithic amplifier
incorporating a disable/enable feature.
(8-PIN SO, PDIP)
®
TOP VIEW
EL2070
1
Data Sheet
V
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
= +2), and 12ns
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• 200MHz -3dB bandwidth, A
• Disable/enable
• 12ns settling to 0.05%
• V
• Low distortion: HD2, HD3 @-60dBc at 20MHz
• Differential gain 0.02% at NTSC, PAL
• Differential phase 0.01° at NTSC, PAL
• Overload/short-circuit protected
• ±1 to ±8 closed-loop gain range
• Low cost
Applications
• Video gain block
• Video distribution
• HDTV amplifier
• Analog multiplexing (using disable)
• Power-down mode (using disable)
• High-speed A/D conversion
• D/A I-V conversion
• Photodiode, CCD preamps
• IF processors
• High-speed communications
Ordering Information
EL2070CN
EL2070CS
September 26, 2001
NUMBER
S
PART
= ±5V @ 15mA
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
-40°C to +85°C
-40°C to +85°C
RANGE
TEMP.
V
PACKAGE
8-Pin PDIP
= 2
8-Pin SO
EL2070
PKG. NO.
MDP0031
MDP0027
FN7031

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el2070 Summary of contents

Page 1

... The EL2070’s settling to 0.05% in 12ns, low distortion, and ability to drive capacitive loads make it an ideal flash A/D driver. The wide 200MHz bandwidth and extremely linear phase allow unmatched signal fidelity. D/A systems can also benefit from the EL2070, especially if linearity and drive levels are important ...

Page 2

... OUT CMIR Common-Mode Input Range I Output Current OUT V Output Voltage Swing OUT 2 EL2070 Thermal ResistanceT  T Applied Output Voltage (Disabled .±V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . -40C to +85C S Pin Temperature (Soldering, 5 Seconds 300°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175°C , -1V S Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-60°C to +15 0°C ...

Page 3

... PP GFPH Peaking V < 0.5V OUT PP GFR Rolloff V < 0.5V OUT PP LPD Linear Phase Deviation V < 0.5V OUT PP 3 EL2070 V = ±5V 100: unless otherwise specified (Continued TEST CONDITIONS TEMP 100: 25° C 25° C 25° C 25° C 25° MIN T MAX All All ...

Page 4

... Differential Phase (Note Differential Gain (Note Differential Phase (Note 2) P VBW -0.1dB Bandwidth (Note 2) NOTES: 1. Noise Tests are performed from 5MHz to 200MHz. 2. Differential gain/phase tests are with R 4 EL2070 V = ±5V 250 TEST CONDITIONS TEMP 0.5V Step All 5.0V Step All 2.0V Step All 2 ...

Page 5

... Typical Performance Curves Non-Inverting Frequency Response Open-Loop Transimpedance Gain and Phase Equivalent Input Noise 5 EL2070 Inverting Frequency Response for Frequency Response Various R 2nd and 3rd 2-Tone 3rd Order Harmonic Distortion Intermodulation Intercept Power-Supply Common-Mode Rejection Ratio Rejection Ratio s L ...

Page 6

... Typical Performance Curves Settling Time Recommended R Load Capacitance 6 EL2070 (Continued) Long-Term Settling Time vs S Pulse Response A Pulse Response Settling Time vs Load Capacitance = +2 V ...

Page 7

... Typical Performance Curves Differential Gain and Phase (3.58MHz) Forward and Reverse Gain during Disable Equivalent Circuit 7 EL2070 (Continued) Differential Gain and Phase (4.43MHz) Enable/Disable Response Differential Gain and Phase (30MHz) ...

Page 8

... Applications Information Theory of Operation The EL2070 has a unity gain buffer from the non-inverting input to the inverting input. The error signal of the EL2070 is a current flowing into (or out of) the inverting input. A very small change in current flowing through the inverting input will cause a large change in the output voltage. This current ...

Page 9

... When more than 350µA is pulled from pin 8, the EL2070 is disabled. The output becomes a high impedance, the inverting input is no longer driven to the positive input voltage, and the supply current is reduced by 2/3 ...

Page 10

... EL2070 Macromodel * Revision A. March 1992 * Enhancements include PSRR, CMRR, and Slew Rate Limiting * Connections: +input * | -input * | | +Vsupply * | | | -Vsupply * | | | | output * | | | | | .subckt M2070C Input Stage * 1.0 vis vxx 1 48nH iinp 3 0 8µA iinm 2 0 8µA ...

Page 11

... EL2070 Macromodel (Continued) vxx r10 r11 Models * .model qn npn (is=5e-15 bf=200 tf=0.05nS) .model qp pnp (is=5e-15 bf=200 tf=0.05nS) .model dclamp d(is=1e-30 ibv=0.266 bv=1.3 n=4) .ends All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. ...

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