EL2070CN Elantec Inc, EL2070CN Datasheet

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EL2070CN

Manufacturer Part Number
EL2070CN
Description
200MHz current feedback amplifier
Manufacturer
Elantec Inc
Datasheet

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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
• 200MHz -3dB bandwidth, A
• Disable/enable
• 12ns settling to 0.05%
• V
• Low distortion: HD2, HD3 @
• Differential gain 0.02% at NTSC,
• Differential phase 0.01° at NTSC,
• Overload/short-circuit protected
• ±1 to ±8 closed-loop gain range
• Low cost
• Video gain block
• Video distribution
• HDTV amplifier
• Analog multiplexing (using
• Power-down mode (using disable)
• High-speed A/D conversion
• D/A I-V conversion
• Photodiode, CCD preamps
• IF processors
• High-speed communications
EL2070CN
EL2070CS
Part No.
-60dBc at 20MHz
PAL
PAL
disable)
S
= ±5V @ 15mA
-40°C to +85°C
-40°C to +85°C
Temp. Range
8-Pin P-DIP
8-Lead SO
Package
V
MDP0031
MDP0027
Outline #
-----
= 2
EL2070C
200MHz Current Feedback Amplifier
General Description
The EL2070C is a wide bandwidth, fast settling monolithic amplifier
incorporating a disable/enable feature. Built using an advanced com-
plementary bipolar process, this amplifier uses current-mode feedback
to achieve more bandwidth at a given gain than conventional opera-
tional amplifiers. Designed for closed-loop gains of ±1 to ±8, the
EL2070C has a 200MHz -3dB bandwidth (A
to 0.05% while consuming only 15mA of supply current. Furthermore,
the fast disable/enable times of 200ns/100ns allow rapid analog
multiplexing.
The EL2070C is an obvious high-performance solution for video dis-
tribution 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 differen-
tial gain/phase of 0.02%/0.01°, guaranteed video specifications, and a
minimum 50mA output drive, performance in these areas is assured.
The EL2070C'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 sig-
nal fidelity. D/A systems can also benefit from the EL2070C,
especially if linearity and drive levels are important.
Connection Diagrams
Manufactured under U.S. Patent No. 4,893,091
DIP and SO Package - Top VIew
V
= +2), and 12ns settling

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EL2070CN Summary of contents

Page 1

... Photodiode, CCD preamps • IF processors • High-speed communications Ordering Information Part No. Temp. Range Package Outline # EL2070CN -40°C to +85°C 8-Pin P-DIP MDP0031 EL2070CS -40°C to +85°C 8-Lead SO MDP0027 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. © ...

Page 2

EL2070C 200MHz Current Feedback Amplifier Absolute Maximum Ratings Supply Voltage ( Output Current (Output is short-circuit protected to ground, however, maximum reliability is obtained if I does not exceed 70mA) OUT Common-Mode Input Voltage Differential Input Voltage Disable ...

Page 3

Open Loop DC Electrical Characteristics (Continued ±5V 100 unless otherwise specified S L Parameter Description -ICMR Input Current Common Mode Rejection +IPSR +Input Current Power Supply Rejection -IPSR -Input Current Power Supply Rejection R Transimpedance OL ...

Page 4

EL2070C 200MHz Current Feedback Amplifier Closed-Loop AC Electrical Characteristics V = ±5V 250 , 100 unless otherwise specified Parameter Description t Settling Time to 0. Settling Time ...

Page 5

Typical Performance Curves Non-Inverting Frequency Response Open-Loop Transimpedance Gain and Phase Equivalent Input Noise 200MHz Current Feedback Amplifier Inverting Frequency Response 2nd and 3rd Harmonic Distortion Power-Supply Rejection Ratio 5 EL2070C Frequency Response for Various 2-Tone 3rd ...

Page 6

EL2070C 200MHz Current Feedback Amplifier Settling Time Recommended Load Capacitance Pulse Response A Long-Term Settling Time Pulse Response Settling Time vs Load Capacitance ...

Page 7

Differential Gain and Phase (3.58MHz) Forward and Reverse Gain during Disable 200MHz Current Feedback Amplifier Differential Gain and Phase (4.43MHz) Enable/Disable Response 7 EL2070C Differential Gain and Phase (30MHz) ...

Page 8

EL2070C 200MHz Current Feedback Amplifier Equivalent Circuit Burn-In Circuit ALL PACKAGES USE THE SAME SCHEMATIC. 8 ...

Page 9

Applications Information Theory of Operation The EL2070C has a unity gain buffer from the non- inverting input to the inverting input. The error signal of the EL2070C is a current flowing into (or out of) the inverting input. A very ...

Page 10

EL2070C 200MHz Current Feedback Amplifier Printed Circuit Layout As with any high frequency device, good PCB layout is necessary for optimum performance. Ground plane con- struction is a requirement good power-supply and Offset Adjust bypassing close to the ...

Page 11

EL2070C Macromodel * Revision A. March 1992 * Enhancements include PSRR, CMRR, and Slew Rate Limiting * Connections: +input * | -input * | | +Vsupply * | | | -Vsupply * | | | | output * | | ...

Page 12

EL2070C 200MHz Current Feedback Amplifier 1 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 ...

Page 13

EL2070C Macromodel 200MHz Current Feedback Amplifier 13 EL2070C ...

Page 14

EL2070C 200MHz Current Feedback 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 ...

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