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CLC1008 Schematic ( PDF Datasheet ) - Exar

Teilenummer CLC1008
Beschreibung 75MHz Rail-to-Rail Amplifiers
Hersteller Exar
Logo Exar Logo 




Gesamt 16 Seiten
CLC1008 Datasheet, Funktion
Data Sheet
Comlinear® CLC1008, CLC2008
0.5mA, Low Cost, 2.5 to 5.5V, 75MHz Rail-to-Rail Amplifiers
FEATURES
n 505μA supply current
n 75MHz bandwidth
n Input voltage range with 5V supply:
-0.3V to 3.8V
n Output voltage range with 5V supply:
0.07V to 4.86V
n 50V/μs slew rate
n 12nV/√Hz input voltage noise
n 15mA linear output current
n Fully specified at 2.7V and 5V supplies
n Replaces AD8031 in VS ≤ 5 applications
General Description
The COMLINEAR CLC1008 (single) and CLC2008 (dual) offer superior dynamic
performance with 75MHz small signal bandwidth and 50V/μs slew rate. These
amplifiers use only 505μA of supply current and are designed to operate
from a supply range of 2.5V to 5.5V (±1.25 to ±2.75).The combination of
low power, high output current drive, and rail-to-rail performance make the
CLC1008 and CLC2008 well suited for battery-powered communication/
computing systems.
The combination of low cost and high performance make the CLC1008 and
CLC2008 suitable for high volume applications in both consumer and industrial
applications such as wireless phones, scanners, and color copiers.
APPLICATIONS
n Portable/battery-powered applications
n Mobile communications, cell phones,
pagers
n ADC buffer
n Active filters
n Portable test instruments
n Signal conditioning
n Medical Equipment
n Portable medical instrumentation
Typical Performance Examples
Frequency Response vs. VOUT
Vo = 1Vpp
Vo = 2Vpp
Vo = 4Vpp
Frequency Response vs. Temperature
0.1 1
10 100
Frequency (MHz)
0.01
0.1
1
10 100
Frequency (MHz)
Ordering Information
Part Number
Package
CLC1008IST5X
SOT23-5
CLC2008ISO8X
SOIC-8
Moisture sensitivity level for all parts is MSL-1.
Pb-Free
Yes
Yes
RoHS Compliant
Yes
Yes
Operating Temperature Range
-40°C to +85°C
-40°C to +85°C
Packaging Method
Reel
Reel
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 - Fax. +1 510 668-7001






CLC1008 Datasheet, Funktion
Data Sheet
Typical Performance Characteristics
TA = 25°C, Vs = +5V, Rf = Rg =1kΩ, RL = 1kΩ to VS/2, G = 2; unless otherwise noted.
Non-Inverting Frequency Response at VS = 5V
G=2
Rf = 1kΩ
G=1
Rf = 0
G = 10
Rf = 1kΩ
G=5
Rf = 1kΩ
0.1 1 10
Frequency (MHz)
Non-Inverting Frequency Response
100
Inverting Frequency Response at VS = 5V
G = -2
Rf = 1kΩ
G = -10
Rf = 1kΩ
G = -5
Rf = 1kΩ
G = -1
Rf = 1kΩ
0.1 1 10
Frequency (MHz)
Inverting Frequency Response
100
G=2
Rf = 1kΩ
G=1
Rf = 0
G = 10
Rf = 2kΩ
G=5
Rf = 1kΩ
0.1 1 10
Frequency (MHz)
Frequency Response vs. CL
100
CRLs==110000pΩF
RCsL == 15000pΩF
+ Rs
-
1kΩ
CL RL
1kΩ
CRLs
=
=
10pF
0Ω
CRLs
=
=
20pF
100Ω
0.1 1
10 100
Frequency (MHz)
G = -1
Rf = 1kΩ
G = -2
Rf = 1kΩ
G = -10
Rf = 1kΩ
G = -5
Rf = 1kΩ
0.1 1 10
Frequency (MHz)
Frequency Response vs. RL
100
RL = 1kΩ
RL = 100Ω
RL = 10kΩ
0.1 1 10 100
Frequency (MHz)
©2009-2013 Exar Corporation
6/16
Rev 2C

6 Page









CLC1008 pdf, datenblatt
Data Sheet
approximately <1dB peaking in the frequency response.
The Frequency Response vs. CL plot, on page 4, illustrates
the response of the CLCx008.
CL (pF)
10pF
20pF
50pF
100pF
RS (Ω)
0
100
100
100
-3dB BW (kHz)
22
19
12
10.2
Table 1: Recommended RS vs. CL
For a given load capacitance, adjust RS to optimize the
tradeoff between settling time and bandwidth. In general,
reducing RS will increase bandwidth at the expense of
additional overshoot and ringing.
high frequency performance. CADEKA has evaluation
boards to use as a guide for high frequency layout and as
an aid in device testing and characterization. Follow the
steps below as a basis for high frequency layout:
▪▪Include 6.8µF and 0.1µF ceramic capacitors for power
supply decoupling
▪▪Place the 6.8µF capacitor within 0.75 inches of the power pin
▪▪Place the 0.1µF capacitor within 0.1 inches of the power pin
▪▪Remove the ground plane under and around the part,
especially near the input and output pins to reduce
parasitic capacitance
▪▪Minimize all trace lengths to reduce series inductances
Refer to the evaluation board layouts below for more
information.
Overdrive Recovery
An overdrive condition is defined as the point when either
one of the inputs or the output exceed their specified
voltage range. Overdrive recovery is the time needed for
the amplifier to return to its normal or linear operating
point. The recovery time varies, based on whether the
input or output is overdriven and by how much the range is
exceeded. The CLC1008 and CLC2008 will typically recover
in less than 20ns from an overdrive condition. Figure 8
shows the CLC1008 in an overdriven condition.
Evaluation Board Information
The following evaluation boards are available to aid in the
testing and layout of these devices:
Evaluation Board #
Products
CEB002
CLC1008 in SOT23
CEB003
CLC1008 in SOIC
CEB006
CLC2008 in SOIC
CEB010
CLC2008 in MSOP
Evaluation Board Schematics
G=5
Output
Input
Evaluation board schematics and layouts are shown in
Figures 8-14. These evaluation boards are built for dual-
supply operation. Follow these steps to use the board in a
single-supply application:
1. Short -Vs to ground.
2. Use C3 and C4, if the -VS pin of the amplifier is not
directly connected to the ground plane.
Time (200ns/div)
Figure 8. Overdrive Recovery
Layout Considerations
General layout and supply bypassing play major roles in
©2009-2013 Exar Corporation
12/16
Rev 2C

12 Page





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