1
®
EL2126
Ultra-Low Noise, Low Power, Wideband
Amplifier
The EL2126 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 SOT-23
package, which further helps systems where many input
channels create both space and power dissipation problems.
The EL2126 is stable for gains of 10 and greater and uses
traditional voltage feedback. This allows the use of reactive
elements in the feedback loop, a common requirement for
many filter topologies. It operates from ±2.5V to ±15V
supplies and is available in the 5 Ld SOT-23 and 8 Ld SO
packages.
The EL2126 is fabricated in Elantec’s proprietary
complementary bipolar process, and is specified for
operation over the full -40°C to +85°C temperature range.
Pinouts
EL2126
(5 LD SOT-23)
TOP VIEW
EL2126
(8 LD SOIC)
TOP VIEW
Features
Voltage noise of only 1.3nV/Hz
Current noise of only 1.2pA/Hz
200µV offset voltage
100MHz -3dB BW for A
V
= 10
Very low supply current - 4.7mA
SOT-23 package
±2.5V to ±15V operation
Pb-free plus anneal available (RoHS compliant)
Applications
Ultrasound input amplifiers
Wideband instrumentation
Communication equipment
AGC and PLL active filters
Wideband sensors
1
2
3
5
4
-+
VS+
IN-IN+
VS-
OUT
1
2
3
4
8
7
6
5
-
+
NC
IN-
IN+
VS-
NC
VS+
OUT
NC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002, 2005, 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
FN7046.4Data Sheet May 2, 2007
2
FN7046.4
May 2, 2007
Ordering Information
PART
NUMBER
PART
MARKING
TEMP RANGE
(°C) TAPE AND REEL PACKAGE PKG. DWG. #
EL2126CW-T7 G -40 to +85 7” (3k pcs) 5 Ld SOT-23 MDP0038
EL2126CW-T7A G -40 to +85 7” (250 pcs) 5 Ld SOT-23 MDP0038
EL2126CS 2126CS -40 to +85 - 8 Ld SOIC (150 mil) MDP0027
EL2126CS-T7 2126CS -40 to +85 7” 8 Ld SOIC (150 mil) MDP0027
EL2126CS-T13 2126CS -40 to +85 13” 8 Ld SOIC (150 mil) MDP0027
EL2126CSZ ( Note) 2126CSZ -40 to +85 - 8 Ld SOIC (150 mil)
(Pb-free)
MDP0027
EL2126CSZ-T7 ( Note) 2126CSZ -40 to +85 7” 8 Ld SOIC (150 mil)
(Pb-free)
MDP0027
EL2126CSZ-T13 ( Note) 2126CSZ -40 to +85 13” 8 Ld SOIC (150 mil)
(Pb-free)
MDP0027
EL2126CWZ-T7 (Note) BAAH -40 to +85 7” 5 Ld SOT-23 (SC74)
(1.65mm) (Green)
P5.064
EL2126CWZ-T7A (Note) BAAH -40 to +85 7” 5 Ld SOT-23 (SC74)
(1.65mm) (Green)
P5.064
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination
finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
EL2126
3
FN7046.4
May 2, 2007
Absolute Maximum Ratings Thermal Information
V
S
+ to V
S
-) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33V
Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
Any Input . . . . . . . . . . . . . . . . . . . . . . . . . . . V
S
+ -0.3V to V
S
- +0.3V
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-60°C to +150°C
Maximum Die Junction Temperature . . . . . . . . . . . . . . . . . . . +150°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications V
S
+ = +5V, V
S
- = -5V, T
A
= +25°C, R
F
= 180Ω, R
G
= 20Ω, R
L
= 500Ω Unless Otherwise Specified.
Parameter Description Conditions Min Typ Max Unit
DC PERFORMANCE
V
OS
Input Offset Voltage (SO8) 0.2 2 mV
Input Offset Voltage (SOT23-5) 3mV
T
CVOS
Offset Voltage Temperature
Coefficient
17 µV/°C
I
B
Input Bias Current -10 -7 µA
I
OS
Input Bias Current Offset 0.06 0.6 µA
T
CIB
Input Bias Current Temperature
Coefficient
0.013 µA/°C
C
IN
Input Capacitance 2.2 pF
A
VOL
Open Loop Gain V
O
= -2.5V to +2.5V 80 87 dB
PSRR Power Supply Rejection Ratio
(Note 1)
80 100 dB
CMRR Common Mode Rejection Ratio at CMIR 75 106 dB
CMIR Common Mode Input Range -4.6 3.8 V
V
OUTH
Positive Output Voltage Swing No load, R
F
= 1kΩ 3.8 3.8 V
V
OUTL
Negative Output Voltage Swing No load, R
F
= 1kΩ -4 -3.9 V
V
OUTH2
Positive Output Voltage Swing R
L
= 100Ω 3.2 3.45 V
V
OUTL2
Negative Output Voltage Swing R
L
= 100Ω -3.5 -3.2 V
I
OUT
Output Short Circuit Current
(Note 2)
80 100 mA
I
SY
Supply Current 4.7 5.5 mA
AC PERFORMANCE - R
G
= 20Ω, C
L
= 3pF
BW -3dB Bandwidth, R
L
= 500Ω 100 MHz
BW ±0.1dB ±0.1dB Bandwidth, R
L
= 500Ω 17 MHz
BW ±1dB ±1dB Bandwidth, R
L
= 500Ω 80 MHz
Peaking Peaking, R
L
= 500Ω 0.6 dB
SR Slew Rate V
OUT
= 2V
P-P
, measured at 20% to 80% 80 110 V/µs
OS Overshoot, 4V
P-P
Output Square
Wave
Positive 2.8 %
Negative -7 %
t
S
Settling Time to 0.1% of ±1V Pulse 51 ns
EL2126

EL2126CSZ-T13

Mfr. #:
Manufacturer:
Renesas / Intersil
Description:
IC OPAMP VFB 1 CIRCUIT 8SOIC
Lifecycle:
New from this manufacturer.
Delivery:
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