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PDF EL2227C Data sheet ( Hoja de datos )
| Número de pieza | EL2227C | |
| Descripción | Dual Very Low Noise Amplifier | |
| Fabricantes | Elantec Semiconductor | |
| Logotipo |  |
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EL2227C
Dual Very Low Noise Amplifier
Features
• Voltage noise of only 1.9nV/√Hz
• Current noise of only 1.2pA/√Hz
• Bandwidth (-3dB) of 115MHz
@AV = +2
• Gain-of-2 stable
• Just 4.8mA per amplifier
• 8-pin MSOP package
• ±2.5V to ±12V operation
Applications
• ADSL receivers
• HDSLII receivers
• Ultrasound input amplifiers
• Wideband instrumentation
• Communications equipment
• AGC & PLL active filters
• Wideband sensors
General Description
The EL2227C is a dual, low-noise amplifier, ideally suited to line
receiving applications in ADSL and HDSLII designs. With low noise
specification of just 1.9nV/√Hz and 1.2pA/√Hz, the EL2227C is per-
fect for the detection of very low amplitude signals.
The EL2227C features a -3dB bandwidth of 115MHz and is gain-of-2
stable. The EL2227C also affords minimal power dissipation with a
supply current of just 4.8mA per amplifier. The amplifier can be pow-
ered from supplies ranging from ±2.5V to ±12V.
The EL2227C is available in a space-saving 8-pin MSOP package as
well as the industry-standard 8-pin SO. It can operate over the -40°C
to +85°C temperature range.
Ordering Information
Part No.
EL2227CY
EL2227CY-T13
EL2227CY-T7
EL2227CS
EL2227CS-T13
EL2227CS-T7
Package
8-Pin MSOP
8-Pin MSOP
8-Pin MSOP
8-Pin SO
8-Pin SO
8-Pin SO
Tape & Reel
-
13”
7”
-
13”
7”
Outline #
MDP0043
MDP0043
MDP0043
MDP0027
MDP0027
MDP0027
Connection Diagram
VOUTA 1
8 VS+
VINA- 2
VINA+ 3
-
+
VS- 4
7 VOUTB
- 6 VINB-
+
5 VINB+
EL2227C
(8-Pin SO and 8-Pin MSOP)
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  
EL2227C
Dual Very Low Noise Amplifier
Typical Performance Curves
Non-inverting Frequency Response for Various
Input Signal Levels
4
3
VS=±12V
RF=350Ω
2 AV=+2
1 RL=500Ω
VIN=100mVPP
VIN=20mVPP
0
-1 VIN=500mVPP
-2
-3 VIN=1VPP
-4
-5 VIN=2VPP
-6
100k 1M 10M 100M
Frequency (Hz)
Non-inverting Frequency Response for Various CL
5
4
3
2
1
0
-1
-2 VS=±12V
-3 RF=620Ω
-4
RL=500Ω
AV=+2
-5
1M
CL=30pF
CL=12pF
CL=2pF
10M 100M 200M
Frequency (Hz)
Non-inverting Frequency Response for Various RL
4
3
2
1
0
-1
-2
-3 VS=±12V
-4 RF=620Ω
-5
CL=15pF
AV=+2
-6
1M
RL=100Ω
RL=50Ω
10M
RL=500Ω
100M 200M
Frequency (Hz)
5
Inverting Frequency Response for Various Input
Signal Levels
4
3
2 VIN=1.4VPP
1
VIN=20mVPP
0
-1 VIN=2.8VPP
-2
-3 VS=±12V
-4 RF=420Ω
-5
RL=500Ω
AV=-1
-6
1M
10M
VIN=280mVPP
100M 200M
Frequency (Hz)
Inverting Frequency Response for Various CL
4
3
2
1
0
-1
-2
-3 VS=±12V
-4 RF=420Ω
-5
RL=500Ω
AV=-1
-6
1M
CL=30pF
CL=12pF
CL=2pF
10M 100M
Frequency (Hz)
200M
Frequency Response for Various Output DC
Levels
4
3
VO=+10V
2
VO=-10V
VO=+5V
1
0
-1
-2 VO=0V
-3 VS=±12V
-4 RF=620Ω
-5
RL=500Ω
AV=+2
-6
100k
1M
VO=-5V
10M 100M
Frequency (Hz)
5 Page 
Pin Descriptions
EL2227CY
8-Pin MSOP
1
EL2227CS
8-Pin SO
1
Pin Name
VOUTA
Pin Function
Output
EL2227C
Dual Very Low Noise Amplifier
Equivalent Circuit
VS+
VOUT
2
2
VINA-
Input
Circuit 1
VS+
VIN+ VIN-
3
3
VINA+
Input
Reference Circuit 2
4 4 VS- Supply
5
5
VINB+
Input
6
6
VINB-
Input
Reference Circuit 2
7
7
VOUTB
Output
Reference Circuit 1
8 8 VS+ Supply
VS-
Circuit 2
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet EL2227C.PDF ] | |
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