el2073 Intersil Corporation, el2073 Datasheet - Page 8

• Manufacturer Part Number: el2073
• Description: 200mhz Unity-gain Stable Operational Amplifier
• Manufacturer: Intersil Corporation

Equivalent Circuit
Burn-In Circuit
Applications Information
Product Description
The EL2073 is a wideband monolithic operational amplifier
built on a high-speed complementary bipolar process. The
EL2073 uses a classical voltage-feedback topology which
allows it to be used in a variety of applications where current-
feedback amplifiers are not appropriate because of
restrictions placed upon the feedback element used with the
amplifier. The conventional topology of the EL2073 allows,
for example, a capacitor to be placed in the feedback path,
making it an excellent choice for applications such as active
ALL PACKAGES USE THE
SAME SCHEMATIC
8
EL2073
filters, sample-and-holds, or integrators. Similarly, because
of the ability to use diodes in the feedback network, the
EL2073 is an excellent choice for applications such as log
amplifiers.
The EL2073 also has excellent DC specifications: 200µV,
V
specifications allow the EL2073 to be used in DC-sensitive
applications such as difference amplifiers. Furthermore, the
current noise of the EL2073 is only 3.2pA/
excellent choice for high-sensitivity transimpedance amplifier
configurations.
Gain-Bandwidth Product
The EL2073 has a gain-bandwidth product of 200MHz. For
gains greater than 4, 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 4, higher-
order poles in the amplifier's transfer function contribute to
even higher closed loop bandwidths. For example, the
EL2073 has a -3dB bandwidth of 400MHz at a gain of +1,
dropping to 200MHz at a gain of +2. It is important to note
that the EL2073 has been designed so that this “extra”
bandwidth in low-gain applications does not come at the
expense of stability. As seen in the typical performance
curves, the EL2073 in a gain of +1 only exhibits 1dB of
peaking with a 100Ω load.
OS
, 2µA I
B
, 0.1µA I
OS
, and 90dB of CMRR. These
√
Hz, making it an