1
HA-2620, HA-2625
100MHz, High Input Impedance, Very
Wideband, Uncompensated Operational
Amplifiers
HA-2620/2625 are bipolar operational amplifiers that feature
very high input impedance (500M
, HA-2620) coupled with
wideband AC performance. The high resistance of the input
stage is complemented by low offset voltage (0.5mV,
HA-2620) and low bias and offset current (1nA, HA-2620) to
facilitate accurate signal processing. Input offset can be
reduced further by means of an external nulling
potentiometer. The 100MHz gain bandwidth product
(HA-2620/2625 are stable for closed loop gains greater than
5), 35V/
μ
s slew rate and 150kV/V open loop gain enables
HA-2620/2625 to perform high gain amplification of very fast,
wideband signals. These dynamic characteristics, coupled
with fast settling times, make these amplifiers ideally suited
to pulse amplification designs as well as high frequency
(e.g., video) applications. The frequency response of the
amplifier can be tailored to exact design requirements by
means of an external bandwidth control capacitor connected
from the Comp pin to GND.
In addition to its application in pulse and video amplifier
designs, HA-2620/2625 is particularly suited to other high
performance designs such as high-gain low distortion audio
amplifiers, high-Q and wideband active filters and high-
speed comparators. For more information, please refer to
Application Notes AN509, AN519 and AN546.
Ordering Information
Features
Gain Bandwidth Product (A
V
≥
5). . . . . . . . . . . . . 100MHz
High Input Impedance . . . . . . . . . . . . . . . . . . . . . 300M
Low Input Bias Current. . . . . . . . . . . . . . . . . . . . . . . . 5nA
Low Input Offset Current . . . . . . . . . . . . . . . . . . . . . . 5nA
Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . . 3mV
High Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150kV/V
Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V/
μ
s
Output Short Circuit Protection
Compensation Pin for Unity Gain Capability
Applications
Video and RF Amplifier
Pulse Amplifier
Audio Amplifiers and Filters
High-Q Active Filters
High Speed Comparators
Low Distortion Oscillator
Pinouts
HA-2625 (PDIP, SOIC)
TOP VIEW
HA-2620 (METAL CAN)
TOP VIEW
PART
NUMBER
PART
MARKING
TEMP.
RANGE
(
o
C)
PACKAGE
PKG.
DWG. #
HA2-2620-2
HA2-2620-2
-55 to 125 8 Pin Metal Can T8.C
HA3-2625-5
HA3-2625-5
0 to 75
8 Ld PDIP
E8.3
HA9P2625-9
26259
-40 to 85
8 Ld SOIC
M8.15
1
2
3
4
8
7
6
5
+
BAL
-IN
+IN
V-
COMP
V+
OUT
BAL
-
COMP
OUT
-IN
BAL
+IN
V+
BAL
2
4
6
1
3
7
5
8
+
V-
-
Data Sheet
January 16, 2006
FN2903.8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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