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PDF EL2125CN Data sheet ( Hoja de datos )
| Número de pieza | EL2125CN | |
| Descripción | Ultra-low Noise/ Low Power/ Wideband Amplifier | |
| Fabricantes | Elantec | |
| Logotipo |  |
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EL2125C - Preliminary
Ultra-low Noise, Low Power, Wideband Amplifier
Features
• Voltage noise of only 0.83nV/√Hz
• Current noise of only 2.4pA/√Hz
• Low offset voltage ≤200µV
• 180MHz -3dB BW for AV=10
• Low supply current - 10mA
• SOT23 package available
• ±2.5V to ±15V operation
Applications
• Ultrasound input amplifiers
• Wideband instrumentation
• Communication equipment
• AGC & PLL active filters
• Wideband sensors
General Description
The EL2125C is an ultra-low noise, wideband amplifier that runs on
half the supply current of competitive parts. It is intended for use in
systems such as ultrasound imaging where a very small signal needs to
be amplified by a large amount without adding significant noise. Its
low power dissipation enables it to be packaged in the tiny SOT23
package, which further helps systems where many input channels cre-
ate both space and power dissipation problems.
The EL2125C is stable for gains of 10 and greater and uses traditional
voltage feedback. This allows the use of reactive elements in the feed-
back loop, a common requirement for many filter topologies. It
operates from ±2.5V to ±15V supplies and is available in a 5-pin
SOT23 package and 8-pin SO and 8-pin PDIP packages.
The EL2125C is fabricated in Elantec’s proprietary complementary
bipolar process, and is specified for operation from -45°C to +85°C.
Ordering Information
Part No
EL2125CW
EL2125CS
EL2125CN
Package
5-Pin SOT23
8-Pin SO
8-Pin PDIP
Tape & Reel
Outline #
MDP0038
MDP0027
MDP0031
Connection Diagrams
OUT 1
5 VS+
VS- 2
+-
IN+ 3
4 IN-
EL2125CW
(5-Pin SOT23)
NC 1
8 NC
IN- 2
IN+ 3
-
+
7 VS+
6 OUT
VS- 4
5 NC
EL2125CS
(8-Pin SO and 8-Pin PDIP)
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
1 page  
EL2125C - Preliminary
Ultra-low Noise, Low Power, Wideband Amplifier
Typical Performance Curves
Inverting Frequency Response vs Gain
6
VS=±5V
RL=500Ω
2 CL=5pF
-2
AV=-50
-6 RF=1.75kΩ
AV=-10
RF=350kΩ
AV=-20
RF=700kΩ
-10
-14
1M
10M 100M
Frequency (Hz)
1G
Non-Inverting Frequency Response for Various Output
Signal Levels
5
VS=±5V
AV=10
RF=180Ω
RL= 500Ω
CL=5pF
30mVPP
0
4VPP
2VPP
500mVPP
1VPP
-5
1M
10M 100M
1G
Frequency (Hz)
Non-Inverting Frequency Response for Various CL
5
VS=±5V
AV=10
3 RF=180Ω
RL=500Ω
1
CL=28.5pF
CL=16pF
CL=5pF
-1
CL=1pF
-3
-5
1M
10M 100M
1G
Frequency (Hz)
Inverting Frequency Response vs Gain
6
0 AV=-10
AV=-50
AV=-20
VS=±15V
RL=500Ω
CL=5pF
RG=50Ω
-14
1M
10M 100M
Frequency (Hz)
1G
Inverting Frequency Response for Various Output Signal
Levels
6
3mVPP
250mVPP
0
3.3VPP
500mVPP
VS=±5V
AV=-10
RF=350Ω
RL= 500Ω
CL=5pF
-14
1M
2.5VPP
1VPP
10M 100M
Frequency (Hz)
1G
Non-Inverting Frequency Response for Various CL
5
VS=±5V
AV=10
RF=700Ω
RL=500Ω
CL=11pF
CL=17pF
0
CL=5pF
CL=1.2pF
-5
1M
5
10M 100M
Frequency (Hz)
1G
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet EL2125CN.PDF ] | |
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