Data Sheet
FEATURES
Single supply operation: 3 V to 30 V
Very low input bias current: 2 pA
Wide input voltage range
Rail-to-rail output swing
Low supply current per amplifier: 500 µA
Wide bandwidth: 2 MHz
Slew rate: 2 V/µs
No phase reversal
Single Supply, Rail-to-Rail
Low Power, FET-Input Op Amp
PIN CONFIGURATION
OUT A
1
–IN A
+IN A
V+
+IN B
–IN B
2
3
4
5
6
14
13
OUT D
–IN D
AD824
12
+IN D
TOP VIEW
(Not to Scale)
11
V–
10
9
8
+IN C
00875-001
–IN C
OUT C
OUT B
7
APPLICATIONS
Photo diode preamplifier
Battery powered instrumentation
Power supply control and protection
Medical instrumentation
Remote sensors
Low voltage strain gage amplifiers
DAC output amplifier
Figure 1. 14-Lead SOIC (R Suffix)
GENERAL DESCRIPTION
The
is a quad, FET input, single supply amplifier,
featuring rail-to-rail outputs. The combination of FET inputs
and rail-to-rail outputs makes the
useful in a wide
variety of low voltage applications where low input current is
a primary consideration.
The
is guaranteed to operate from a 3 V single supply
up to ±15 V dual supplies.
parametric
performance at 3 V is fully guaranteed.
Fabricated on Analog Devices, Inc., complementary bipolar
process, the
has a unique input stage that allows the
input voltage to safely extend beyond the negative supply and
to the positive supply without any phase inversion or latch-up.
The output voltage swings to within 15 mV of the supplies.
Capacitive loads to 350 pF can be handled without oscillation.
The FET input combined with laser trimming provides an input
that has extremely low bias currents with guaranteed offsets
below 1 mV. This enables high accuracy designs even with high
source impedances. Precision is combined with low noise,
making the
ideal for use in battery powered medical
equipment.
Applications for the
include portable medical
equipment, photo diode preamplifiers, and high impedance
transducer amplifiers.
The ability of the output to swing rail-to-rail enables designers
to build multistage filters in single supply systems and maintain
high signal-to-noise ratios.
The
is specified over the extended industrial (−40°C to
+85°C) temperature range and is available in narrow 14-lead
SOIC package.
Rev. E
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
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