el2125 Intersil Corporation, el2125 Datasheet

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el2125

Manufacturer Part Number
el2125
Description
Ultra-low Noise, Low Power, Wideband Amplifier
Manufacturer
Intersil Corporation
Datasheet
Ultra-Low Noise, Low Power, Wideband
Amplifier
The EL2125 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 EL2125 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 SOIC
packages.
The EL2125 is fabricated using Elantec’s proprietary
complementary bipolar process, and is specified for
operation from -45°C to +85°C.
Ordering Information
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.
EL2125CW-T7
EL2125CW-T7A
EL2125CS
EL2125CS-T7
EL2125CS-T13
EL2125CSZ
(See Note)
EL2125CSZ-T7
(See Note)
EL2125CSZ-T13
(See Note)
PART NUMBER
F
F
2125CS
2125CS
2125CS
2125CSZ
2125CSZ
2125CSZ
MARKING
PART
®
(250 pcs)
TAPE &
(3k pcs)
1
REEL
13”
13”
7”
7”
7”
7”
-
-
Data Sheet
5 Ld SOT-23 MDP0038
5 Ld SOT-23 MDP0038
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
(Pb-free)
8 Ld SOIC
(Pb-free)
8 Ld SOIC
(Pb-free)
PACKAGE
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
DWG. #
PKG.
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Voltage noise of only 0.83nV/√Hz
• Current noise of only 2.4pA/√Hz
• 200µV offset voltage
• 175MHz -3dB BW for A
• Low supply current - 10mA
• SOT-23 package available
• ±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
Pinouts
All other trademarks mentioned are the property of their respective owners.
|
Copyright Intersil Americas Inc. 2003, 2005, 2007. All Rights Reserved
Intersil (and design) is a registered trademark of Intersil Americas Inc.
May 4, 2007
OUT
VS-
VS-
IN+
IN+
NC
IN-
1
2
3
1
2
3
4
(5 LD SOT-23)
(8 LD SOIC)
TOP VIEW
TOP VIEW
V
EL2125
EL2125
= 10
+
-
+
-
5
4
8
7
6
5
VS+
IN-
NC
VS+
OUT
NC
EL2125
FN7045.3

el2125 Summary of contents

Page 1

... The EL2125 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 ± ...

Page 2

... Peaking SR Slew Rate OS Overshoot, 4V Output Square Wave P-P t Settling Time to 0.1% of ±1V Pulse S 2 EL2125 Thermal Information = +25°C) Ambient Operating Temperature . . . . . . . . . . . . . . . .-45°C to +85°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150° 0. 0.3V Maximum Die Junction Temperature . . . . . . . . . . . . . . . . . . . +150° Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www ...

Page 3

... BW ±0.1dB ±0.1dB Bandwidth BW ±1dB ±1dB Bandwidth Peaking Peaking SR Slew Rate OS Overshoot, 4V Output Square Wave P-P t Settling Time to 0.1% of ±1V Pulse S 3 EL2125 , = +25° 180Ω 20Ω 500Ω unless otherwise specified. (Continued CONDITIONS 10kHz 10kHz = +25° 180Ω 20Ω ...

Page 4

... - 560Ω 5pF L -14 1M 10M FREQUENCY (Hz) FIGURE 3. INVERTING FREQUENCY RESPONSE FOR VARIOUS EL2125 = +25° 180Ω 20Ω CONDITIONS 10kHz 10kHz R = 499Ω 100Ω 100M 200M FIGURE 2. NON-INVERTING FREQUENCY RESPONSE FOR R = 499Ω ...

Page 5

... 5pF L 500mV 10M FREQUENCY (Hz) FIGURE 9. NON-INVERTING FREQUENCY RESPONSE FOR VARIOUS OUTPUT SIGNAL LEVELS 5 EL2125 (Continued 100M 200M FIGURE 6. NON-INVERTING FREQUENCY RESPONSE FOR A = -10 V 100M 300M FIGURE 8. INVERTING FREQUENCY RESPONSE vs GAIN 30mV PP PP 100M 200M FIGURE 10 ...

Page 6

... L 100 GAIN ± 10K 100K 1M 10M FREQUENCY (Hz) FIGURE 15. OPEN LOOP GAIN AND PHASE 6 EL2125 (Continued 1pF L 100M 200M FIGURE 12. NON-INVERTING FREQUENCY RESPONSE FOR = 1.2pF 100M 300M FIGURE 14. INVERTING FREQUENCY RESPONSE FOR 250 150 PHASE 50 -50 -150 -250 100M 400M FIGURE 16 ...

Page 7

... (±V) S FIGURE 17. 3dB BANDWIDTH vs SUPPLY VOLTAGE 10ns/DIV FIGURE 19. SMALL SIGNAL STEP RESPONSE TIME (20ns/DIV) FIGURE 21. LARGE SIGNAL STEP RESPONSE 7 EL2125 (Continued ± 500Ω 180Ω 5pF ± ...

Page 8

... V = ± ±15V 0.1 1 ACCURACY (%) FIGURE 27. SETTLING TIME vs ACCURACY 8 EL2125 (Continued) 3RD FIGURE 24. 1MHz HARMONIC DISTORTION vs OUTPUT 10M 100M FIGURE 26. VOLTAGE AND CURRENT NOISE vs FREQUENCY = ± - ±15V S - 180Ω ...

Page 9

... FREQUENCY (Hz) FIGURE 31. CLOSED LOOP OUTPUT IMPEDANCE vs FREQUENCY 350 300 250 200 150 100 SWING (V OUT FIGURE 33. SLEW RATE vs SWING 9 EL2125 (Continued) 1M 10M 100M 10M 100M 15V - SR 15V + 110 90 PSRR- 70 PSRR 10k 100k ...

Page 10

... ±15V S 220 200 V = ±5V S 180 160 - DIE TEMPERATURE (°C) FIGURE 39. SLEW RATE vs TEMPERATURE 10 EL2125 (Continued) 100 150 FIGURE 36. INPUT BIAS CURRENT vs TEMPERATURE V = ±15V S 100 150 100 150 FIGURE 40. POSITIVE OUTPUT SWING vs TEMPERATURE -10 -15 -20 -25 -30 - 100 DIE TEMPERATURE (° ...

Page 11

... FIGURE 43. NEGATIVE OUTPUT SWING vs TEMPERATURE -9.6 -9.8 - ±15V -10.2 S -10.4 -10.6 -10.8 - DIE TEMPERATURE (°C) FIGURE 45. NEGATIVE OUTPUT SWING vs TEMPERATURE 11 EL2125 (Continued) 100 150 FIGURE 42. NEGATIVE OUTPUT SWING vs TEMPERATURE = ±15V S 100 150 FIGURE 44. LOADED NEGATIVE OUTPUT SWING vs 100 150 FIGURE 46. LOADED POSITIVE OUTPUT SWING vs -9.75 -9 ± ...

Page 12

... SOT23-5 0.2 θ =230°C AMBIENT TEMPERATURE (°C) FIGURE 49. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE 12 EL2125 (Continued) 100 150 FIGURE 48. PACKAGE POWER DISSIPATION vs AMBIENT 100 125 150 JEDEC JESD51-3 LOW EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD 1.2 1 781mW 0.8 SO8 θ =160°C ...

Page 13

... The EL2125 also has excellent DC specifications: 200µ 22µA IB, 0.4µ CMRR. These specifications allow the EL2125 to be used in DC-sensitive applications such as difference amplifiers. Gain-Bandwidth Product The EL2125 has a gain-bandwidth product of 800MHz at ±5V. For gains greater than 20, its closed-loop -3dB bandwidth is approximately equal to the gain-bandwidth product divided by the small signal gain of the circuit ...

Page 14

... With a single supply, the 3 EL2125 will operate from +5V to +30V. Pins 4 and 7 are the power supply pins. The positive power supply is connected to pin 7. When used in single supply mode, pin 4 is connected to ground. When used in dual supply mode, the negative power supply is connected to pin 4 ...

Page 15

... Plastic or metal protrusions of 0.006” maximum per side are not included. 2. Plastic interlead protrusions of 0.010” maximum per side are not included. 3. Dimensions “D” and “E1” are measured at Datum Plane “H”. 4. Dimensioning and tolerancing per ASME Y14.5M-1994 15 EL2125 D (N/2)+1 (N/2) H ...

Page 16

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 16 EL2125 MDP0038 D SOT-23 PACKAGE FAMILY ...

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