Features: • This Circuit is Processed in Accordance to MILSTD-883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1.
• Digital Selection of Input Channel
• Unity Gain Stable
• Gain Flatness (to 10MHz) . . . . . . . 0.12dB (Typ)
• Differential Gain . . . . . . . . . . . . . . 0.03% (Typ)
• Differential Phase. . . . . . . . 0.03 Degrees (Typ)
• Fast Channel Selection . . . . .. ... . 100ns (Max)
• Crosstalk Rejection . . . . . . . . . .. . . 60dB (Typ)Application• Programmable Gain Amplifier
• Special Effects Processors
• Video Distribution Systems/Multiplexers
• Heads-up/Night Vision Displays
• Radar Video
• Flight Simulators
• IR ImagingPinout
SpecificationsVoltage between V+ and V- Terminals . . . . . . . . . . . . . .. . . . . . 35V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Voltage at Either Input Terminal . . . . . . . . . . . . . . . V+ to VVoltage
on Digital Inputs. . . . . . . . . . . . . . . .. . . . GND +7.5V to GND -0.5V
Peak Output Current (10% Duty Cycle) . . . . . . . . . . . . . . . .40mA
Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . . . . . . +175
Storage Temperature Range . . . . . . . . . . . . . . . . . -65 to +150
ESD Rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . <2000V
Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . +300
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.
DescriptionThe HA-2444/883 is a channel-selectable video op amp consisting of four differential inputs, a single-ended output, and digital control circuitry allowing two digital inputs to activate one of the four differential inputs. It also includes a high impedance output state allowing the outputs of multiple HA-2444/883s to be wire-OR'd. Functionally, the HA-2444/883 is equivalent to four wideband video op amps and a wideband multiplexer.
Unlike similar competitor devices, the HA-2444/883 is not restricted to multiplexing. Any op amp configuration can be used with any of the inputs. Signal amplification, addition, integration, and more can be put under digital control with broadcast quality performance.
The key video parameters of the HA-2444/883 have been optimized without compromising DC performance. Gain Flatness, to 10MHz, is only 0.12dB. Differential gain and phase are typically 0.03% and 0.03 degrees, respectively.
Laser trimming allows offset voltages in the 4.0mV range and a unique common current source design assures minimal channelto- channel mismatch, while maintaining 60dB of crosstalk rejection at 5MHz. Open loop gain of 76dB and low input offset and bias currents enhance the performance of this versatile HA-2444/883.
Uses for the HA-2444/883 include video test equipment, guidance systems, radar displays, and other precise imaging systems where stringent gain and phase requirements have previously required costly hybrids and discrete circuitry. It will also be used for systems requiring high speed signal conditioning, such as data acquisition systems, specialized instrumentation, and communications systems.
HA-2444_883 Data Sheet
