clc426 National Semiconductor Corporation, clc426 Datasheet

no-image

clc426

Manufacturer Part Number
clc426
Description
Wideband, Low-noise, Voltage Feedback Op Amp
Manufacturer
National Semiconductor Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
clc426A
Quantity:
5 510
Part Number:
clc426A
Manufacturer:
ERICSSON
Quantity:
5 510
Part Number:
clc426AJ-MIL
Manufacturer:
NSC
Quantity:
3 409
Part Number:
clc426AJ-QML
Manufacturer:
NSC
Quantity:
3 007
Part Number:
clc426AJE
Manufacturer:
NSC
Quantity:
5 510
Part Number:
clc426AJE
Manufacturer:
NS
Quantity:
1 000
Part Number:
clc426AJE
Manufacturer:
TI/德州仪器
Quantity:
20 000
Part Number:
clc426AJE-TR13
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
clc426AJP
Manufacturer:
NS
Quantity:
5 510
Part Number:
clc426AJP
Manufacturer:
PANASONIC
Quantity:
5 510
Part Number:
clc426AJP
Manufacturer:
NS
Quantity:
1 000
Part Number:
clc426AJP
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
clc426J-MIL
Manufacturer:
NSC
Quantity:
3 369
General Description
The CLC426 combines an enhanced voltage-feedback architecture
with an advanced complementary bipolar process to provide a
high-speed op amp with very low noise (1.6nV/ Hz & 2.0pA/ Hz) and
distortion (-62/-68dBc 2
Providing a wide 230MHz gain-bandwidth product, a fast 400V/ s
slew rate and very quick 16ns settling time to 0.05% , the CLC426 is
the ideal choice for high speed applications requiring a very wide-
dynamic range such as an input buffer for high-resolution analog-to-
digital converters.
The CLC426 is internally compensated for gains
easily be externally compensated for unity-gain stability in applications
such as wideband low-noise integrators. The CLC426 is also equipped
with external supply current adjustment which allows the user to
optimize power, bandwidth, noise and distortion performance for each
application.
The CLC426's combination of speed, low noise and distortion and low
dc errors will allow high-speed signal conditioning applications to
achieve the highest signal-to-noise performance. To reduce design
times and assist board layout, the CLC426 is supported by an
evaluation board and SPICE simulation model available from National.
For even higher gain-bandwidth voltage-feedback op amps see the
1.9GHz CLC425 (A
Printed in the U.S.A.
N
CLC426
Wideband, Low-Noise, Voltage Feedback Op Amp
1999 National Semiconductor Corporation
Sallen-Key Band Pass Filter
Wide Dynamic Range
v
(20MHz, Q=10, G=2)
10V/V) or the 5.0GHz CLC422 (A
nd
/3
2nd-Order
rd
harmonics at 1V
Typical Application
pp
and 10MHz).
2V/V and can
v
30V/V).
DIP & SOIC
Pinout
Features
Applications
Externally compensatable
Ultrasound
Low-power portable video
ADC/DAC buffer
Differential amps
Wide gain-bandwidth product: 230MHz
Ultra-low input voltage noise: 1.6nV/ Hz
Very low harmonic distortion: -62/-68dBc
Fast slew rate: 400V/ s
Adjustable supply current
Dual ±2.5 to ±5V or single 5 to 12V supplies
Active filters & integrators
Wide dynamic range amp
Pulse/RF amp
V
non-inv
-V
V
NC
inv
cc
1
2
3
4
-
+
8
7
6
5
http://www.national.com
R
+V
V
Ext. Comp.
(optional)
out
June 1999
p (optional)
cc

Related parts for clc426

clc426 Summary of contents

Page 1

... Providing a wide 230MHz gain-bandwidth product, a fast 400V/ s slew rate and very quick 16ns settling time to 0.05% , the CLC426 is the ideal choice for high speed applications requiring a very wide- dynamic range such as an input buffer for high-resolution analog-to- digital converters. ...

Page 2

... ESD rating Notes A)J-level: spec is 100% tested at +25°C. 1) Minimum stable gain with out external compensation -1V/V, the CLC426 is unity-gain stable with external compensation. 2) Output is short circuit protected to ground, however maximum reliability is obtained if output current does not exceed 160mA. 3) See text for compensation techniques. ...

Page 3

3 http://www.national.com ...

Page 4

... External Compensation The CLC426 is stable for noise gains 2V/V. For unity-gain operation, the CLC426 requires an external compensation capacitor (from pin 5 to ground). The plot located in the Typical Performance section labeled "Frequency Re- sponse vs Compensation Cap." ...

Page 5

... Loop Gain vs. Supply Current" illustrates the influence that supply current has over the CLC426's open-loop Fig. 2 response. From the plot it is seen that the CLC426 can be compensated for unity-gain stability by simply lowering its supply current. Therefore lowering the CLC426's sup- ply current effectively reduces its open-loop gain to the point that there is adequate phase margin at unity gain crossover. The plot labeled " ...

Page 6

... A feedback The CLC426 is well suited for Sallen-Key type of active filters. Fig. 9 shows the 2 filter topology and design equations. To design the band-pass, begin by choosing values for R , for example R and R g sonable values for C compute ...

Page 7

This page intentionally left blank. 7 http://www.national.com ...

Page 8

... 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 of National Semiconductor Corporation. As used herein: 1. Life support devices or systems are devices or systems which, a) are intended for surgical implant into the body support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user ...

Related keywords