CLC5523IM National Semiconductor, CLC5523IM Datasheet

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CLC5523IM

Manufacturer Part Number
CLC5523IM
Description
IC AMP VARIABLE GAIN 8-SOIC
Manufacturer
National Semiconductor
Datasheet

Specifications of CLC5523IM

Amplifier Type
Variable Gain
Number Of Circuits
1
Slew Rate
1800 V/µs
-3db Bandwidth
250MHz
Current - Input Bias
3µA
Current - Supply
13.5mA
Current - Output / Channel
80mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
Voltage - Supply, Single/dual (±)
-
Gain Bandwidth Product
-
Voltage - Input Offset
-
Other names
*CLC5523IM

Available stocks

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© 2002 National Semiconductor Corporation
CLC5523
Low Power, Variable Gain Amplifier
General Description
The CLC5523 is a low power, wideband, DC-coupled, volt-
age controlled gain amplifier. It provides a voltage controlled
gain block coupled with a current feedback output amplifier.
High impedance inputs and minimum dependence of band-
width on gain make the CLC5523 easy to use in a wide
range of applications. This amplifier is suitable as a continu-
ous gain control element in a variety of electronic systems
which benefit from a wide bandwidth of 250MHz and high
slew rate of 1800V/µs, with only 135mW of power dissipa-
tion.
Input impedances in the megaohm range on both the signal
and gain control inputs simplify driving the CLC5523 in any
application. The CLC5523 can be configured to use pin 3 as
a low impedance input making it an ideal interface for current
inputs. By using the CLC5523’s inverting configuration in
which R
input voltage range may be used.
The gain control input (V
linear-in-dB gain control, simplifies the implementation of
AGC circuits. The gain control circuit can adjust the gain as
fast as 4dB/ns. Maximum gains from 2 to 100 are accurately
and simply set by two external resistors while attenuation of
up to 80dB from this gain can be achieved.
The extremely high slew rate of 1800V/µs and wide band-
width provides high speed rise and fall times of 2.0ns, with
settling time for a 2 volt step of only 22ns to 0.2%. In time
domain applications where linear phase is important with
gain adjust, the internal current mode circuitry maintains low
deviation of delay over a wide gain adjust range.
Connection Diagram
g
is driven directly, inputs which exceed the device’s
g
) with a 0 to 2V input range, and a
DS012798
DIP & SOIC
Pinout
Features
n Low power: 135mW
n 250MHz, −3dB bandwidth
n Slew rate: 1800V/µs
n Gain flatness: 0.2d
n Rise & fall times: 2.0ns
n Low input voltage noise: 4nV/
Applications
n Automatic gain control
n Voltage controlled filters
n Automatic signal leveling for A/D
n Amplitude modulation
n Variable gain transimpedance
DS012798-3
Frequency Response with changes in V
@
75MHz
DS012798-1
January 2002
www.national.com
g

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CLC5523IM Summary of contents

Page 1

... Connection Diagram © 2002 National Semiconductor Corporation Features n Low power: 135mW n 250MHz, −3dB bandwidth n Slew rate: 1800V/µs n Gain flatness: 0.2d n Rise & ...

Page 2

... Typical Application Ordering Information Package 8-pin plastic DIP 8-pin plastic SOIC www.national.com DS012798-2 Variable Gain Amplifier Circuit Temperature Range Part Number Industrial −40˚C to +85˚C CLC5523IN −40˚C to +85˚C CLC5523IM 2 Package NSC Marking Drawing CLC5523IN N08E CLC5523IM M08A ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Output Current Maximum Junction Temperature Storage Temperature Range Electrical Characteristics ± 5V 1k 100 , Symbol Parameter Ambient Temperature Frequency Domain Response ...

Page 4

Electrical Characteristics ± 5V 1k 100 , Symbol Parameter Static, DC Performance Gain Accuracy (Note 4) V Gain Input g Input Bias Current Input Resistance Input Capacitance Ground Pin ...

Page 5

Typical Performance Characteristics unless specified. (Continued) Frequency Response 100) vamx Frequency Response vs +2V Frequency Response vs. R DS012798-6 Frequency Response vs. R DS012798 100 ...

Page 6

Typical Performance Characteristics unless specified. (Continued) PSRR & R OUT Gain Flatness & Linear Phase Deviation Gain Phase Frequency (MHz) www.national.com V = +2V ...

Page 7

Typical Performance Characteristics unless specified. (Continued) Equivalent Input Noise Gain (V/V) vs Large & Small Signal Pulse Response V = +2V Input Referred Total Noise ...

Page 8

Typical Performance Characteristics unless specified. (Continued) 3rd Harmonic Distortion vs. Frequency Harmonic Distortion vs. Gain Differential Gain & Phase (NTSC) 0.05 0 -0.05 -0.1 -1.6 -0 Output Voltage www.national.com V = +2V ...

Page 9

Typical Performance Characteristics unless specified. (Continued) Long Term Settling Time 0. 2Vstep o 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 0.001 0.01 0.1 1.0 Time (ms) DC Offset vs. Temperature 120 Input Bias Current 100 ...

Page 10

Application Division CLC5523 Operation The key features of the CLC5523 are: • Low Power • Broad voltage controlled gain and attenuation range • Bandwidth independent, resistor programmable gain range • Broad signal and gain control bandwidths • Frequency response may ...

Page 11

Application Division (Continued) difference in output levels when and when V g Capacitance coupling through the board and package as well as coupling through the supplies will determine the amount of feedthrough. Even at DC, the input ...

Page 12

Application Division (Continued) • Keep traces connecting R separated and as short as f possible • Capacitive Loads • Place a small resistor (20-50 ) between the output and C L • Long traces and/or lead lengths between R CLC5523 ...

Page 13

Application Division (Continued) FIGURE 6. DIP Evaluation Board (Top Layer) FIGURE 7. DIP Evaluation Board (Bottom Layer) DS012798-38 FIGURE 8. Small Outline Evaluation Board (Top Layer) DS012798-39 FIGURE 9. Small Outline Evaluation Board (Bottom 13 DS012798-40 DS012798-41 Layer) www.national.com ...

Page 14

... Figure 10 illustrates such an application. This circuit employs National Semiconductor’s eight-bit DAC0830, the LM351 JFET input op amp, and the CLC5523 VGA. With V set to 2V, the circuit provides up to 0.05% full ref scale resolution ...

Page 15

Application Division (Continued) FIGURE 11. Automatic Gain Control Circuit # 1 FIGURE 12. Automatic Gain Control Circuit # 2 15 DS012798-43 DS012798-44 www.national.com ...

Page 16

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8-Pin SOIC NS Package Number M08A 8-Pin MDIP NS Package Number N08E 16 ...

Page 17

... 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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