Document
Semiconductor
T UCT ROD ACEMEN 47 P E 7 T L 7 E P 42 OL RE 00-4 m OBS ENDED 8 1 s.co MM ions ECO pplicat p@harri R January 1999 O A l N ap entraail: cent C l l Ca or em
HA-5004
File Number 2923.4
100MHz Current Feedback Amplifier
The HA-5004 current feedback amplifier is a video/wideband amplifier optimized for low gain applications. The design is based on current-mode feedback which allows the amplifier to achieve higher closed loop bandwidth than voltage-mode feedback operational amplifiers. Since feedback is employed, the HA-5004 can offer better gain accuracy and lower distortion than open loop buffers. Unlike conventional op amps, the bandwidth and rise time of the HA-5004 are nearly independent of closed loop gain. The 100MHz bandwidth at unity gain reduces to only 65MHz at a gain of 10. The HA-5004 may be used in place of a conventional op amp with a significant improvement in speed power product. Several features have been designed in for added value. A thermal overload feature protects the part against excessive junction temperature by shutting down the output. If this feature is not needed, it can be inhibited via a TTL input (TOI). A TTL chip enable/disable (OE) is also provided; when the chip is disabled its output is high impedance. Finally, an open collector output flag (TOL) is provided to indicate the status of the chip. The status flag goes low to indicate when the chip is disabled due to either the internal Thermal Overload shutdown or the external disable. In order to maximize bandwidth and output drive capacity, internal current limiting is not provided. However, current limiting may be applied via the VC+ and VC- pins which provide power separately to the output stage. For Military grade product refer to the HA-5004/883 data sheet.
Features
• Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200V/µs • Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100mA • Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±9V into 100Ω • VSUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V to ±18V • Thermal Overload Protection and Output Flag • Bandwidth Nearly Independent of Gain • Output Enable/Disable
Applications
• Unity Gain Video/Wideband Buffer • Video Gain Block • High Speed Peak Detector • Fiber Optic Transmitters • Zero Insertion Loss Transmission Line Drivers • Current to Voltage Converter • Radar Systems
Part Number Information
PART NUMBER HA1-5004-5 TEMP. RANGE (oC) 0 to 70 PACKAGE 14 Ld CERDIP PKG. NO. F14.3
TRUTH TABLE INPUTS TEMP TJ Normal High (Note) X X TOL OUTPUT (OPEN COLLECTOR) 1 0 1 0
Pinout
HA-5004 (CERDIP) TOP VIEW
OE 0 0
TOI 0 0 1 X
OPERATION Normal Auto Shutdown, HI-Z OUT Normal Manual Shutdown, HI-Z OUT
VC+ 1 OUT +BAL -BAL 2 3 4
14 VC13 VEE
0 1 NOTE:
+
12 -IN 11 +IN 10 TOL 9 GND 8 N/C
>180oC Typical
VCC 5 TOI OE 6 7
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-800-4-HARRIS or 407-727-9207 | Copyright © Harris Corporation 1999
HA-5004
Absolute Maximum Ratings
Supply Voltage (Between V+ and V- Terminals) . . . . . . . . . . . . 40V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VSUPPLY Output Current . . . . . . . . . . . . . . . ±120mA Max (≤25% Duty Cycle)
Thermal Information
Thermal Resistance (Typical, Note 2) θJA (oC/W) θJC (oC/W) CERDIP Package. . . . . . . . . . . . . . . . . 75 20 Maximum Junction Temperature (Note 1) . . . . . . . . . . . . . . . 175oC Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
Operating Conditions
Temperature Range HA-5004-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 75oC
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.
NOTES: 1. Maximum power dissipation, including load condition, must be designed to maintain the junction temperature below 175oC. See Thermal Resistances in the “Thermal Information” section. 2. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
PARAMETER INPUT CHARACTERISTICS Offset Voltage
VCC = VC+ = +15V, VEE = VC- = -15V, RS = 50Ω, RL = 100Ω, AV = +1, RF = 250Ω, OE = 0.8V, TOI = 0.8V or 2.0V, Unless Otherwise Specified TEST CONDITIONS TEMP. (oC) MIN TYP MAX UNITS
25 Full
±10
1 10 2 6.5 3 3 -
5 20 5 20 -
mV mV µV/oC µA µA Ω MΩ pF V
Average Offset Voltage Drift Bias Current (+Input Only) (Note 3)
Full 25 Full
Input Resistance (-Input) Input Resistance (+Input) Input Capacitance Common Mode Range DISTORTION AND NOISE Total Harmonic Distortion .