EL2245C, EL2445C
EL2245C, EL2445C
Dual/Quad Low-Power 100MHz Gain-of-2 Stable Op Amp
Features
• 100MHz gain-bandwidth at gain-
of-2
• Gain-of-2 stable
• Low supply current (per amplifier)
= 5.2mA at V
S
= ±15V
• Wide supply range
= ±2V to ±18V dual-supply
= 2.5V to 36V single-supply
• High slew rate = 275V/µs
• Fast settling = 80ns to 0.1% for a
10V step
• Low differential gain = 0.02% at
A
V
= +2, R
L
= 150Ω
• Low differential phase = 0.07° at
A
V
= +2, R
L
= 150Ω
• Stable with unlimited capacitive
load
• Wide output voltage swing
=±13.6V with V
S
= ±15V,
R
L
= 1000Ω
= 3.8V/0.3V with V
S
= +5V,
R
L
= 500Ω
General Description
The EL2245C/EL2445C are dual and quad versions of the popular
EL2045C. They are high speed, low power, low cost monolithic oper-
ational amplifiers built on Elantec's proprietary complementary
bipolar process. The EL2245C/EL2445C are gain-of-2 stable and fea-
ture a 275V/µs slew rate and 100MHz bandwidth at gain-of-2 while
requiring only 5.2mA of supply current per amplifier.
The power supply operating range of the EL2245C/EL2445C is from
±18V down to as little as ±2V. For single-supply operation, the
EL2245C/EL2445C operate from 36V down to as little as 2.5V. The
excellent power supply operating range of the EL2245C/EL2445C
makes them an obvious choice for applications on a single +5V or
+3V supply.
The EL2245C/EL2445C also feature an extremely wide output volt-
age swing of ±13.6V with V
S
= ±15V and R
L
= 1000Ω. At ±5V,
output voltage swing is a wide ±3.8V with R
L
= 500Ω and ±3.2V with
R
L
= 150Ω. Furthermore, for single-supply operation at +5V, output
voltage swing is an excellent 0.3V to 3.8V with R
L
= 500Ω.
At a gain of +2, the EL2245C/EL2445C have a -3dB bandwidth of
100MHz with a phase margin of 50°. They can drive unlimited load
capacitance, and because of their conventional voltage-feedback
topology, the EL2245C/EL2445C allow the use of reactive or non-lin-
ear elements in their feedback network. This versatility combined with
low cost and 75mA of output-current drive make the
EL2245C/EL2445C an ideal choice for price-sensitive applications
requiring low power and high speed.
Applications
•
•
•
•
•
•
•
•
•
•
•
Video amplifier
Single-supply amplifier
Active filters/integrators
High-speed sample-and-hold
High-speed signal processing
ADC/DAC buffer
Pulse/RF amplifier
Pin diode receiver
Log amplifier
Photo multiplier amplifier
Difference amplifier
Connection Diagrams
EL2245CN/CS Dual
EL2445CN/CS Quad
September 26, 2001
Ordering Information
Part No.
EL2245CN
EL2245CS
EL2445CN
EL2445CS
Temp. Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Package
8-Pin P-DIP
8-Lead SO
14-Pin P-DIP
14-Lead SO
Outline #
MDP0031
MDP0027
MDP0031
MDP0027
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.
ELANTEC [ ELANTEC SEMICONDUCTOR ]
