HFA1112883 Datasheet, PDF (1/18 Pages) Intersil Corporation – Ultra High Speed Programmable Gain Buffer Amplifier

TM
HFA1112/883
June 1994
Ultra High Speed
Programmable Gain Buffer Amplifier
Features
Description
• This Circuit is Processed in Accordance to MIL-STD-
883 and is Fully Conformant Under the Provisions of
Paragraph 1.2.1.
• User Programmable For Closed-Loop Gains of +1, -1
or +2 Without Use of External Resistors
• Low Differential Gain and Phase . . . . .0.02%/0.04 Deg.
• Low Distortion (HD3, 30MHz) . . . . . . . . . . -73dBc (Typ)
• Wide -3dB Bandwidth . . . . . . . . . . . . . . . 850MHz (Typ)
• Very High Slew Rate . . . . . . . . . . . . . . . 2400V/µs (Typ)
• Fast Settling (0.1%) . . . . . . . . . . . . . . . . . . . . 13ns (Typ)
• Excellent Gain Flatness (to 100MHz) . . . . 0.07dB (Typ)
• Excellent Gain Accuracy . . . . . . . . . . . . . . 0.99V/V (Typ)
• High Output Current . . . . . . . . . . . . . . . . . . 60mA (Typ)
• Fast Overdrive Recovery . . . . . . . . . . . . . . <10ns (Typ)
The HFA1112/883 is a closed loop buffer that achieves a
high degree of gain accuracy, wide bandwidth, and low dis-
tortion. Manufactured on the Intersil proprietary complemen-
tary bipolar UHF-1 process, the HFA1112/883 also offers
very fast slew rates, and high output current.
A unique feature of the pinout allows the user to select a
voltage gain of +1, -1, or +2, without the use of any external
components. The result is a more flexible product, fewer part
types in inventory, and more efficient use of board space.
Component and composite video systems will also benefit
from this buffer’s performance, as indicated by the excellent
gain flatness, and 0.02%/0.04 Deg. Differential Gain/Phase
specifications (R_L = 150Ω).
Compatibility with existing op amp pinouts provides flexibility
to upgrade low gain amplifiers, while decreasing component
count. Unlike most buffers, the standard pinout provides an
upgrade path should a higher closed loop gain be needed at
a future date.
Applications
• Video Switching and Routing
This amplifier is available with programmable output clamps
as the HFA1113/883. For applications requiring a standard
buffer pinout, please refer to the HFA1110/883 datasheet.
• Pulse and Video Amplifiers
• Wideband Amplifiers
• RF/IF Signal Processing
• Flash A/D Driver
• Medical Imaging Systems
Ordering Information
PART NUMBER
HFA1112MJ/883
TEMPERATURE
RANGE
-55^oC to +125^oC
PACKAGE
8 Lead Ceramic DIP
Pinout
HFA1112/883
(CERDIP)
TOP VIEW
NC 1
300
300
-IN 2
+IN 3
V- 4
8 NC
7 V+
6 OUT
5 NC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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184
Spec Number 511084-883
FN3610.1