clc400 National Semiconductor Corporation, clc400 Datasheet

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clc400

Manufacturer Part Number
clc400
Description
Fast Settling, Wideband Low-gain Monolithic Op Amp
Manufacturer
National Semiconductor Corporation
Datasheet

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© 2001 National Semiconductor Corporation
CLC400
Fast Settling, Wideband Low Gain Monolithic Op Amp
General Description
The CLC400 is a high speed, fast setting operational ampli-
fier designed for low gain applications. Constructed using a
unique, proprietary design and an advanced complementary
bipolar process, the CLC400 offers performance far beyond
that normally offered by ordinary monolithic op amps. In
addition, unlike many other high speed op amps the CLC400
offers both high performance and stability without the need
for compensation circuitry — even at a gain of +1.
The fast 12ns settling to 0.05% and its ability to drive capaci-
tive loads makes the CLC400 an ideal flash A/D driver. The
wide bandwidth of 200MHz and the very linear phase ensure
unsurpassed signal fidelity. Systems employing digital to
analog converters also benefit from the use of the CLC400
system performance.
The CLC400 provides a simple, high performance solution
for video distribution and line driving applications. The 50mA
output current and guaranteed specifications for 100 loads
provide ample drive capability and assured performance.
The CLC400 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 following discussion will pro-
ceed for the non-inverting gain configuration with the invert-
ing mode analysis being very similar.
Enhanced Solutions (Military/Aerospace)
SMD Number: 5962-89970
Space level versions also available.
For more information, visit http://www.national.com/mil
Connection Diagram
— especially if linearity and drive levels are important to
DS012743
DIP & SOIC
Pinout
Features
n −3dB bandwidth of 200MHz
n 0.05% settling in 12ns
n Low power, 150mW
n Low distortion, −60dBc at 20MHz
n Stable without compensation
n Overload and short circuit protected
n
Applications
n Flash, precision A/D conversion
n Video distribution
n Line drivers
n D/A current-to-voltage conversion
n Photodiode, CCD preamps
n IF processors
n High speed communications
±
1 to
±
8 closed loop gain range
01274319
Pulse Response
01274309
www.national.com
May 2001

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clc400 Summary of contents

Page 1

... The fast 12ns settling to 0.05% and its ability to drive capaci- tive loads makes the CLC400 an ideal flash A/D driver. The wide bandwidth of 200MHz and the very linear phase ensure unsurpassed signal fidelity. Systems employing digital to analog converters also benefit from the use of the CLC400 — ...

Page 2

... Ordering Information Package Temperature Range Industrial 8-pin plastic DIP −40˚C to +85˚C 8-pin plastic SOIC −40˚C to +85˚C www.national.com Part Number Package Marking CLC400AJP CLC400AJP CLC400AJE CLC400AJE 2 NSC Drawing N08E M08A ...

Page 3

... Operating Temperature Range Storage Temperature Range Lead Solder Duration (+300˚C) ESD rating (human body model) ± 7V Operating Ratings Thermal Resistance Package 60mA MDIP ± V SOIC CC 10V +150˚C = 250 ; Unless Specified Conditions CLC400AJ < V 0.5V OUT PP < OUT PP V < V 0.5V OUT PP < ...

Page 4

Electrical Characteristics ± + 5V 100 , Symbol Parameter Miscellaneous Performance RIN Non Inverting Input CIN RO Output Impedance VO Output Voltage Range CMIR Common Mode Input Range IO Output ...

Page 5

Typical Performance Characteristics Specified). (Continued) Open-Loop Transimpedance Gain, Z(s) 2-Tone, 3rd Order, Intermodulation Intercept CMRR and PSRR (T = 25˚ + 2nd and 3rd Harmonic Distortion 01274304 Equivalent Input Noise 01274306 Pulse Response 01274308 ...

Page 6

Typical Performance Characteristics Specified). (Continued) Settling Time Settling Time vs. Load Capacitance Differential Gain and Phase (4.43MHz) www.national.com (T = 25˚ + Long-Term Settling Time 01274310 Recommended RS vs. Load Capacitance 01274312 Typical DC ...

Page 7

Application Division FIGURE 1. Recommended Non-Inverting Gain Circuit FIGURE 2. Recommended Inverting Gain Circuit Understanding the Loop Gain Referring to the equivalent circuit of Figure 3 , any current flowing in the inverting input is amplified to a voltage at ...

Page 8

... See Application Note OA-7 for active filter realizations with the CLC400. Offset Adjustment Pin i Pin 1 can be connected to a potentiometer as shown in Fig- ure 1 and used to adjust the input offset of the CLC400. Full 8 at the inverting node of the CLC400. This de- g ± ...

Page 9

... Stan- dard spirally-trimmed RN55D metal film resistors will work with a slight decrease in bandwidth due to their reactive nature at high frequencies. Evaluation PC boards (part no. 730013 for through-hole and 730027 for SOIC) for the CLC400 are available. 9 www.national.com ...

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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