el2074 Intersil Corporation, el2074 Datasheet - Page 7

• Manufacturer Part Number: el2074
• Description: 400mhz Gbwp Gain-of-2 Stable Operational Amplifier
• Manufacturer: Intersil Corporation

Equivalent Circuit
Burn-In Circuit
Applications Information
Product Description
The EL2074 is a wideband monolithic operational amplifier
built on a high-speed complementary bipolar process. The
EL2074 uses a classical voltage-feedback topology which
allows it to be used in a variety of applications requiring a
noise gain
appropriate because of restrictions placed upon the feed-
back element used with the amplifier. The conventional
topology of the EL2074 allows, for example, a capacitor to be
2 where current-feedback amplifiers are not
All Packages Use The Same Schematic
7
EL2074
placed in the feedback path, making it an excellent choice for
applications such as active filters, sample-and-holds, or inte-
grators. Similarly, because of the ability to use diodes in the
feedback network, the EL2074 is an excellent choice for
applications such as log amplifiers.
The EL2074 also has excellent DC specifications: 200µV,
V
cations allow the EL2074 to be used in DC-sensitive
applications such as difference amplifiers. Furthermore, the
current noise of the EL2074 is only 3.2pA/ Hz, making it an
excellent choice for high-sensitivity transimpedance amplifier
configurations.
Gain-Bandwidth Product
The EL2074 has a gain-bandwidth product of 400MHz. For
gains greater than 8, its closed-loop -3dB bandwidth is
approximately equal to the gain-bandwidth product divided
by the noise gain of the circuit. For gains less than 8, higher-
order poles in the amplifier's transfer function contribute to
even higher closed loop bandwidths. For example, the
EL2074 has a -3dB bandwidth of 400MHz at a gain of +2,
dropping to 200MHz at a gain of +4. It is important to note
that the EL2074 has been designed so that this “extra” band-
width in low-gain applications does not come at the expense
of stability. As seen in the typical performance curves, the
EL2074 in a gain of +2 only exhibits 1dB of peaking with a
100
OS
, 2µA I
load.
B
, 0.1µA I
OS
, and 90dB of CMRR. These specifi-