Precision Rail-to-Rail
Input and Output Operational Amplifiers
OP184/OP284/OP484
PIN CONFIGURATIONS
FEATURES
Single-supply operation
Wide bandwidth: 4 MHz
Low offset voltage: 65 μV
Unity-gain stable
High slew rate: 4.0 V/μs
Low noise: 3.9 nV/√Hz
1
2
3
4
OP184
8
7
6
5
NC
NULL
–IN A
V+
–
+
+IN A
V–
OUT A
NULL
TOP VIEW
(Not to Scale)
NC = NO CONNECT
APPLICATIONS
Figure 1. 8-Lead SOIC (S-Suffix)
Battery-powered instrumentation
Power supply control and protection
Telecom
DAC output amplifier
ADC input buffer
OP284
V+
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
OUT B
–IN B
+IN B
TOP VIEW
(Not to Scale)
GENERAL DESCRIPTION
Figure 2. 8-Lead PDIP (P-Suffix)
8-Lead SOIC (S-Suffix)
The OP184/OP284/OP484 are single, dual, and quad single-supply,
4 MHz bandwidth amplifiers featuring rail-to-rail inputs and
outputs. They are guaranteed to operate from 3 V to 36 V (or
1.ꢀ V to 18 V) and function with a single supply as low as 1.ꢀ V.
1
2
3
4
5
6
7
14
13
12
11
OUT A
–IN A
+IN A
V+
OUT D
–IN D
+IN D
V–
These amplifiers are superb for single-supply applications
requiring both ac and precision dc performance. The combi-
nation of bandwidth, low noise, and precision makes the
OP184/OP284/OP484 useful in a wide variety of applications,
including filters and instrumentation.
OP484
TOP VIEW
(Not to Scale)
+IN B
–IN B
OUT B
10 +IN C
9
8
–IN C
OUT C
Figure 3. 14-Lead PDIP (P-Suffix)
14-Lead Narrow-Body SOIC (S-Suffix)
Other applications for these amplifiers include portable telecom
equipment, power supply control and protection, and as
amplifiers or buffers for transducers with wide output ranges.
Sensors requiring a rail-to-rail input amplifier include Hall
effect, piezo electric, and resistive transducers.
The ability to swing rail-to-rail at both the input and output
enables designers to build multistage filters in single-supply
systems and to maintain high signal-to-noise ratios.
The OP184/OP284/OP484 are specified over the hot extended
industrial (–40°C to +12ꢀ°C) temperature range. The single is
available in 8-lead SOIC surface mount packages. The dual is
available in 8-lead PDIP and SOIC surface mount packages.
The quad OP484 is available in 14-lead PDIP and 14-lead,
narrow-body SOIC packages.
Rev. D
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