Datasheet OP184, OP284, OP484 (Analog Devices)

Precision Rail-to-Rail Input and Output Operational Amplifiers OP184/OP284/OP484 FEATURES PIN CONFIGURATIONS Single-supply operation Wide bandwidth: 4 MHz DNC 1 OP184 8 NC Low offset voltage: 65 μV –IN A 2 7 V+ Unity-gain stable – +IN A 3 6 OUT A High slew rate: 4.0 V/ μs + V– 4 5 DNC TOP VIEW Low noise: 3.9 nV/√Hz (Not to Scale) NOTES
001
APPLICATIONS 1. NC = NO CONNECT 2. DNC = DO NOT CONNECT
00293-
Battery-powered instrumentation
Figure 1. 8-Lead SOIC (S-Suffix)
Power supply control and protection Telecommunications OP284 OUT A 1 8 V+ DAC output amplifier –IN A OUT B ADC input buffer 2 7 +IN A 3 6 –IN B GENERAL DESCRIPTION V– 4 5 +IN B
002
TOP VIEW
The OP184/OP284/OP484 are single, dual, and quad single-supply,
(Not to Scale)
00293- 4 MHz bandwidth amplifiers featuring rail-to-rail inputs and Figure 2. 8-Lead PDIP (P-Suffix) 8-Lead SOIC (S-Suffix) outputs. They are guaranteed to operate from 3 V to 36 V (or ±1.5 V to ±18 V).
OUT A 1 14 OUT D
These amplifiers are superb for single-supply applications requiring
–IN A 2 13 –IN D
both ac and precision dc performance. The combination of wide
+IN A 3 12 +IN D
bandwidth, low noise, and precision makes the OP184/OP284/
OP484 V+ 4 TOP VIEW 11 V–
OP484 useful in a wide variety of applications, including filters
(Not to Scale) +IN B 5 10 +IN C
and instrumentation.
–IN B 6 9 –IN C
003 Other applications for these amplifiers include portable telecom-
OUT B 7 8 OUT C
00293- munications equipment, power supply control and protection, Figure 3. 14-Lead PDIP (P-Suffix) and use as amplifiers or buffers for transducers with wide output 14-Lead Narrow-Body SOIC (S-Suffix) 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 1.1 nV 1.8 nV 2.8 nV 3.2 nV 3.8 nV 3.9 nV
Single AD797 AD8597 ADA4004-1 AD8675/ADA4075-2 OP27 AD8671 OP184 Dual AD8599 ADA4004-2 AD8676 OP270 AD8672 OP284 Quad ADA4004-4 OP470 AD8674 OP484
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Document Outline Features Applications General Description Pin Configurations Table of Contents Revision History Specifications Electrical Characteristics Absolute Maximum Ratings Thermal Resistance ESD Caution Typical Performance Characteristics Applications Information Functional Description Input Overvoltage Protection Output Phase Reversal Designing Low Noise Circuits in Single-Supply Applications Overdrive Recovery Single-Supply, 3 V Instrumentation Amplifier 2.5 V Reference from a 3 V Supply 5 V Only, 12-Bit DAC Swings Rail-to-Rail High-Side Current Monitor Capacitive Load Drive Capability Low Dropout Regulator with Current Limiting 3 V, 50 Hz/60 Hz Active Notch Filter with False Ground Outline Dimensions Ordering Guide