1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002. All Rights Reserved
HA-2705
Low Power, High Performance
Operational Amplifier
The HA-2705 is a general purpose amplifier which operates
at very low power levels without compromising large signal
response characteristics or output drive capability.
Advanced circuit design techniques and the use of vertical
NPN and PNP transistors make possible the attainment of
very high gain with a single stage of voltage amplification.
This ensures closed loop stability even in the critical unity
gain follower mode, without the use of external
compensation components.
The circuit is intended for use in applications that require fast
large signal response with low power dissipation and for
instrumentation applications in which low offset voltage, low
bias current drift, large voltage gain and high common mode
rejection are necessary. Full output short circuit protection
and the large differential input breakdown enable the device
to withstand a variety of fault conditions.
Pinout
HA-2705
(PDIP, SOIC)
TOP VIEW
Features
High Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V/
s
Low Power Dissipation. . . . . . . . . . . . . 2.25mW at
15.0V
High Open Loop Gain . . . . . . . . . . . . 300kV/V (R
L
= 2k
)
Low Input Bias Current. . . . . . . . . . . . . . . . . . . . . . . . .5nA
Low Offset Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 1mV
High CMRR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106dB
Wide Power Supply Range . . . . . . . . . .
5.5V to 20.0V
Fully Internally Compensated
Output Short Circuit Protected
Offset Null Capability
Applications
Instrumentation
Battery Powered Circuits
Portable Instruments
Remote Data Logging
Part Number Information
PART
NUMBER
TEMPERATURE
RANGE
PACKAGE
HA3-2705-5
0
o
C to +70
o
C
8 Lead Plastic DIP
HA9P2705-5
0
o
C to +70
o
C
8 Lead SOIC
BAL
-IN
+IN
V-
1
2
3
4
8
7
6
5
BAL (NOTE 1)
V+
OUT
NC
+
-
September 1998
File Number 3391.3
OBSOLET
E PRODU
CT
See CA51
30, CA516
0
contact o
ur Technic
al Suppor
t Center a
t
1-888-Inte
rsil or ww
w.intersil.
com/tsc
2
Absolute Maximum Ratings
Operating Conditions
Voltage Between V+ and V- Terminals . . . . . . . . . . . . . . . . . . 44.0V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to V-
Junction Temperature (Hermetic) . . . . . . . . . . . . . . . . . . . . .+175
o
C
Junction Temperature (Plastic Package) . . . . . . . . . . . . . . . .+150
o
C
Storage Temperature Range . . . . . . . . . . . . . . -65
o
C
T
A
+150
o
C
Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . .+300
o
C
(SOIC - Lead Tips Only)
HA-2705-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C
T
A
+75
o
C
Thermal Information
Thermal Resistance (Typical)
JA
Plastic DIP Package. . . . . . . . . . . . . . . . . . . . . . . . . .
94
o
C/W
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
157
o
C/W
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.
Electrical Specifications
V+ = +15V, V- = -15V, R
L
= 5k
, Unless Otherwise Specified
PARAMETER
TEMP
HA-2705-5
UNITS
MIN
TYP
MAX
INPUT CHARACTERISTICS
Offset Voltage (Note 1)
+25
o
C
-
1.0
5.0
mV
Full
-
-
7.0
mV
Bias Current
+25
o
C
-
5.0
40.0
nA
Full
-
-
70.0
nA
Offset Current
+25
o
C
-
2.5
15.0
nA
Full
-
-
40.0
nA
Common Mode Range
Full
11.0
-
-
V
TRANSFER CHARACTERISTICS
Large Signal Voltage Gain (Notes 2, 3)
+25
o
C
200
300
-
kV/V
Full
100
-
-
kV/V
Common Mode Rejection Ratio (Note 4)
Full
80
106
-
dB
Gain Bandwidth Product (Note 2)
+25
o
C
-
1.0
-
MHz
Minimum Stable Gain
Full
1
-
-
V/V
OUTPUT CHARACTERISTICS
Output Voltage Swing (Note 2)
+25
o
C
12.0
13.0
-
V
Full
11.0
-
-
V
Output Current (Note 3)
+25
o
C
-
10
-
mA
TRANSIENT RESPONSE CHARACTERISTICS
Slew Rate (Notes 2, 6)
+25
o
C
10
20
-
V/
s
POWER SUPPLY CHARACTERISTICS
Supply Current
+25
o
C
-
75
150
A
Full
-
-
200
A
Power Supply Rejection Ratio (Note 5)
Full
80
100
-
dB
NOTES:
1. Can be adjusted to zero with 1M
potentiometer between Pins 1 and 8 with the wiper to V+.
2. R
L
= 2k
, C
L
= 100pF.
3. V
O
=
10.0V.
4. V
CM
=
5.0V.
5. V
S
=
10.0V to 20.0V.
6. A
V
= 5.
HA-2705
3
Die Characteristics
DIE DIMENSIONS:
70mils x 60mils x 19mils
1mil
METALLIZATION:
Type: Al, 1% Cu
Thickness: 16k
2k
GLASSIVATION:
Type: Nitride (Si
3
N
4
) over Silox (SiO
2
, 5% Phos)
Silox Thickness: 12k
2k
Nitride Thickness: 3.5k
2k
DIE ATTACH:
Material: Silver Epoxy - Plastic DIP and SOIC
Silver Epoxy - TO-99 Metal Can
Metallization Mask Layout
HA-2705
BAL
BAL
V+
OUTPUT
V-
+IN
-IN
HA-2705
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