OP284_15 Datasheet, PDF (1/24 Pages) Analog Devices – Precision Rail-to-Rail Input and Output Operational Amplifiers

Precision Rail-to-Rail
Input and Output Operational Amplifiers
OP184/OP284/OP484
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
APPLICATIONS
Battery-powered instrumentation
Power supply control and protection
Telecommunications
DAC output amplifier
ADC input buffer
GENERAL DESCRIPTION
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
±1.5 V to ±18 V).
These amplifiers are superb for single-supply applications requiring
both ac and precision dc performance. The combination of wide
bandwidth, low noise, and precision makes the OP184/OP284/
OP484 useful in a wide variety of applications, including filters
and instrumentation.
Other applications for these amplifiers include portable telecom-
munications equipment, power supply control and protection,
and use as amplifiers or buffers for transducers with wide output
ranges. Sensors requiring a rail-to-rail input amplifier include
Hall effect, piezoelectric, 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 temperature range of −40°C to +125°C. The single
OP184 is available in 8-lead SOIC surface mount packages. The
dual OP284 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.
Table 1. Low Noise Op Amps
Voltage Noise
0.9 nV
Single
AD797
Dual
Quad
1.1 nV
AD8597
AD8599
1.8 nV
ADA4004-1
ADA4004-2
ADA4004-4
Rev. J
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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PIN CONFIGURATIONS
DNC 1
OP184 8 NC
–IN A 2
+IN A 3
V– 4
–
+
TOP VIEW
(Not to Scale)
7 V+
6 OUT A
5 DNC
NOTES
1. NC = NO CONNECT
2. DNC = DO NOT CONNECT
Figure 1. 8-Lead SOIC (S-Suffix)
OUT A 1
–IN A 2
+IN A 3
OP284
8 V+
7 OUT B
6 –IN B
V– 4
TOP VIEW
(Not to Scale)
5 +IN B
Figure 2. 8-Lead PDIP (P-Suffix)
8-Lead SOIC (S-Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
OP484
TOP VIEW
(Not to Scale)
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
Figure 3. 14-Lead PDIP (P-Suffix)
14-Lead Narrow-Body SOIC (S-Suffix)
2.8 nV
AD8675/ADA4075-2
AD8676
3.2 nV
OP27
OP270
OP470
3.8 nV
AD8671
AD8672
AD8674
3.9 nV
OP184
OP284
OP484
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