HFA1412_06 Datasheet, PDF (1/13 Pages) Intersil Corporation – Quad, 350MHz, Low Power, Programmable Gain Buffer Amplifier

®
Data Sheet
January 23, 2006
HFA1412
FN4152.4
Quad, 350MHz, Low Power,
Programmable Gain Buffer Amplifier
The HFA1412 is a quad closed loop Buffer featuring user
programmable gain and high speed video performance.
A unique feature of the HFA1412’s pinout allows the user to
select a voltage gain of +1, -1, or +2 (see the “Application
Information” section). The on-chip gain setting resistors
eliminate eight external resistors, thus saving board space or
freeing up space for termination resistors. The on-chip
feedback resistor is preset at the optimum value, and also
eliminates worries about parasitic feedback capacitance.
Additionally, the capacitance sensitive summing node is
buried inside the package where it is unaffected by PCB
parasitics. 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.
The HFA1412 is an excellent choice for component and
composite video systems as indicated by the excellent gain
flatness, and 0.03%/0.02 Degree Differential Gain/Phase
specifications (R_L = 150Ω). Its ability to deliver a gain of +2
with no external resistors makes it particularly desirable for
applications driving double terminated cables.
For Military product, refer to the HFA1412/883 data sheet.
Ordering Information
PART
NUMBER
HFA1412IP
HFA1412IPZ
(Note)
HFA1412IB
PART
MARKING
HFA1412IP
HFA1412IPZ
HFA1412IB
TEMP.
RANGE
(°C)
PKG.
PACKAGE DWG. #
-40 to 85 14 Ld PDIP E14.3
-40 to 85 14 Ld PDIP* E14.3
(Pb-free)
-40 to 85 14 Ld SOIC M14.15
HFA1412IBZ HFA1412IBZ -40 to 85 14 Ld SOIC M14.15
(Note)
(Pb-free)
HA5025EVAL
DIP Evaluation Board For Quad Op
Amp
*Pb-free PDIPs can be used for through hole wave solder
processing only. They are not intended for use in Reflow solder
processing applications.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
Features
• User Programmable For Closed-Loop Gains of +1, -1 or
+2 Without Use of External Resistors
• Wide -3dB Bandwidth. . . . . . . . . . . . . . . . . . . . . . 350MHz
• Low Supply Current . . . . . . . . . . . . . . . . . . . . 6mA/Buffer
• Excellent Gain Flatness (to 100MHz). . . . . . . . . . ±0.08dB
• Low Differential Gain and Phase . . . . 0.03%/0.02 Degree
• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . 1650V/µs
• Fast Settling Time (0.1%). . . . . . . . . . . . . . . . . . . . . 28ns
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 55mA
• Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . . 0.99V/V
• Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . . <10ns
• Standard Operational Amplifier Pinout
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Video Distribution Amps
• Flash A/D Drivers
• Video Cable Drivers
• Video Switchers and Routers
• Medical Imaging Systems
• RGB Video Processing
• High Speed Oscilloscopes and Analyzers
Pinout
HFA1412 (PDIP, SOIC)
TOP VIEW
OUT1 1
-IN1 2
+IN1 3
V+ 4
+IN2 5
-IN2 6
OUT2 7
14 OUT4
13 -IN4
12 +IN4
11 V-
10 +IN3
9 -IN3
8 OUT3
Functional Diagram
425 Ω
-IN1 2
+IN1 3
425 Ω
-
+
1 OUT1
425 Ω
-IN2 6
+IN2 5
425 Ω
-
+
7 OUT2
425 Ω
-IN3 9
+IN3 10
425 Ω
-
+
8 OUT3
425 Ω
-IN4 13
+IN4 12
425 Ω
-
+
14 OUT4
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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