clc401 National Semiconductor Corporation, clc401 Datasheet

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clc401

Manufacturer Part Number
clc401
Description
Fast Settling, Wideband High-gain Monolithic Op Amp
Manufacturer
National Semiconductor Corporation
Datasheet

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© 2001 National Semiconductor Corporation
CLC401
Fast Settling, Wideband High Gain Monolithic Op Amp
General Description
The CLC401 is a wideband, fast settling op amp designed
for applications requiring gains greater than
using an advanced complementary bipolar process and a
proprietary design, the CLC401 features dynamic perfor-
mance far beyond that of typical high speed monolithic op
amps. For example, at a gain of +20, the −3dB bandwidth is
150MHz and the rise/fall time is only 2.5ns.
The wide bandwidth and linear phase (0.2˚ deviation from
linear at 50MHz) and a very flat gain response makes the
CLC401 ideal for many digital communication system appli-
cations. For example, demodulators need both DC coupling
and high frequency amplification-requirements that are ordi-
narily difficult to meet.
The very fast 10ns settling to 0.1% and the ability to drive
capacitive loads lend themselves well to flash A/D applica-
tions. Systems employing D/A converters also benefit from
the settling time and also by the fact that current-to-voltage
transimpedance amplification is easily accomplished.
The CLC401 provides a quick, effective design solution. Its
stable operation over the entire
cludes the need for external compensation. And, unlike
many other high speed-op amps, the CLC401’s power dis-
sipation of 150mW is compatible with designs which must
limit total power dissipation or power supply requirements.
The CLC401 is based on National’s proprietary op amp
topology that uses current feedback instead of the usual
voltage feedback. This unique design has many advantages
over conventional designs (such as settling time that is
relatively independent of gain), yet it is used in basically the
same way (see the gain equations in Figure 1 and Figure 2 ).
However, an understanding of the topology will aid in achiev-
ing the best performance. The discussion below will proceed
for the non-inverting gain configuration with the inverting
mode analysis being very similar.
Enhanced Solutions (Military/Aerospace)
SMD Number: 5962-89973
Connection Diagram
±
7 to
±
DS012744
50 gain range pre-
±
7. Constructed
DIP & SOIC
Pinout
Space level versions also available.
For more information, visit http://www.national.com/mil
Features
n −3dB bandwidth of 150MHz
n 0.1% settling in 10ns
n Low power, 150mW
n Overload and short circuit protected
n Stable without compensation
n Recommended gain range,
Applications
n Flash, precision A/D conversion
n Photodiode, CCD preamps
n IF processors
n High speed modems, radios
n Line drivers
n DC coupled log amplifiers
n High speed communications
01274417
Pulse Response
±
7 to
±
50
01274418
www.national.com
June 2001

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clc401 Summary of contents

Page 1

... CLC401 Fast Settling, Wideband High Gain Monolithic Op Amp General Description The CLC401 is a wideband, fast settling op amp designed for applications requiring gains greater than using an advanced complementary bipolar process and a proprietary design, the CLC401 features dynamic perfor- mance far beyond that of typical high speed monolithic op amps. For example gain of +20, the − ...

Page 2

... Ordering Information Package Temperature Range 8-pin plastic DIP 8-pin plastic SOIC www.national.com Non-Inverting Frequency Response Part Number Industrial −40˚C to +85˚C CLC401AJP −40˚C to +85˚C CLC401AJE 2 01274401 Package NSC Marking Drawing CLC401AJP N08E CLC401AJE M08A ...

Page 3

... Junction Temperature Range Operating Temperature Range Storage Temperature Range Lead Solder Duration (+300˚C) ± 7V Operating Ratings Thermal Resistance Package 60mA MDIP ± V SOIC CC 5V =1.5k ; unless specified). f Conditions CLC401AJ < OUT PP < OUTt PP < OUT PP < 25MHz > 25MHz < ...

Page 4

Electrical Characteristics ± +20 5V 100 , Symbol Parameter RO Output Impedance VO Output Voltage Range CMIR Common Mode Input Range IO Output Current Note 1: “Absolute Maximum Ratings” are ...

Page 5

Typical Performance Characteristics fied). Non-Inverting Frequency Response Frequency Response for Various R 2nd and 3rd Harmonic Distortion (T = 25˚ +20 Inverting Frequency Response 01274401 s Open-Loop Transimpedance Gain, Z(s) L 01274403 2-Tone,3rd Order, ...

Page 6

Typical Performance Characteristics Specified). (Continued) Equivalent Input Noise Pulse Response Long-Term Settling Time www.national.com (T = 25˚ +20 CMRR and PSRR 01274407 01274418 Settling Time vs. Load Capacitance 01274420 6 ± = 5V, R ...

Page 7

Typical Performance Characteristics Specified). (Continued) Recommended R vs. Load Capacitance S Frequency Response − 25˚ +20 Low Gain & Transimpedance Applications 01274413 = 2.25k f 01274414 7 ± = ...

Page 8

... Bandwidth at High Gains.” DC Accuracy and Noise Since the two inputs for the CLC401 are quite dissimilar, the noise and offset error performance differs somewhat from that of a standard differential input amplifier. Specifically, the inverting input current noise is much larger than the non-inverting current noise ...

Page 9

... Capacitive Feedback ± ± while the Capacitive feedback should not be used with the CLC401 ± 50. Optimum per- because of the potential for loop instability. See Application with Note OA-7 for active filter realizations with the CLC401. Printed Circuit Layout As with any high frequency device, a good PCB layout will enhance performance ...

Page 10

Physical Dimensions unless otherwise noted www.national.com inches (millimeters) 8-Pin SOIC NS Package Number M08A 8-Pin MDIP NS Package Number N08E 10 ...

Page 11

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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