My Inquiry
My Account
Analog Devices Inc. OP284ESZ-REEL7
- Part No.:
- OP284ESZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OP284ESZ-REEL7.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,474
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OP284ESZ-REEL7 from Analog Devices is a dual-channel, precision rail-to-rail input and output operational amplifier optimized for single-supply operation across 3 V to 36 V (±1.5 V to ±18 V). It delivers 4 MHz gain bandwidth, 3.9 nV/√Hz voltage noise density, and 65 μV typical input offset voltage at 25°C - enabling high-fidelity signal conditioning in battery-powered instrumentation and DAC output buffering.
For engineers reviewing the OP284ESZ-REEL7 datasheet, OP284ESZ-REEL7 pinout, OP284ESZ-REEL7 application, or OP284ESZ-REEL7 equivalent, this page provides verified electrical specifications, SOIC-8 package layout, real-world use cases in power supply control and ADC front-ends, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The OP284ESZ-REEL7 implements a dual NPN/PNP complementary input stage enabling true rail-to-rail common-mode input range (0 V to VS) and output swing within 125 mV of either rail at 1 mA load. Its compound folded-cascade second stage ensures unity-gain stability while delivering 4.0 V/μs slew rate and 240 V/mV large-signal voltage gain (RL = 2 kΩ).
This architecture supports simultaneous precision DC performance (E-grade 65 μV VOS, 0.2–2.0 μV/°C drift) and AC fidelity (4 MHz GBP, 3.9 nV/√Hz noise), making it suitable for multistage active filters and transducer interfaces where signal integrity must be preserved across full supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 36 V (or ±1.5 V to ±18 V): Enables direct integration into 3.3 V, 5 V, and industrial 24 V systems without level-shifting. |
| Gain Bandwidth Product | 4.25 MHz (±15 V): Supports stable closed-loop gain ≥10 up to ~400 kHz, sufficient for anti-aliasing and reconstruction filters. |
| Input Offset Voltage (E Grade) | 65 μV typ. (25°C), 165 μV max. (−40°C to +125°C): Ensures ≤0.33 mV error in 5 V full-scale 12-bit ADC buffer applications. |
| Voltage Noise Density | 3.9 nV/√Hz @ 1 kHz: Critical for low-level sensor amplification (e.g., piezoelectric or Hall effect) without degrading SNR. |
| Slew Rate | 4.0 V/μs (±15 V): Allows clean 10 VPP output at 100 kHz without slewing distortion in DAC reconstruction paths. |
| Common-Mode Rejection Ratio | 86 dB (−40°C to +125°C, VCM = 1.0–4.0 V): Maintains accuracy in noisy industrial environments with ground offsets. |
| Operating Temperature Range | −40°C to +125°C: Qualified for under-hood automotive, industrial motor control, and outdoor telecom equipment. |
Pinout & Package
OP284ESZ-REEL7 is housed in an 8-lead SOIC (S-suffix) surface-mount package with standard JEDEC MS-012AC footprint (5.3 mm × 4.4 mm, 1.27 mm pitch). Thermal resistance θJA = 158°C/W (PCB mounted).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; capable of sourcing/sinking ±6.5 mA while swinging within 125 mV of V− and 200 mV of V+ at 1 mA load. |
| 2 | −IN A | Inverting input for Channel A; part of complementary NPN/PNP differential pair enabling rail-to-rail common-mode range. |
| 3 | +IN A | Non-inverting input for Channel A; matched bias current path to −IN A for optimal CMRR and offset cancellation. |
| 4 | V− | Negative supply terminal; accepts GND (single-supply) or negative rail (dual-supply); must be decoupled with 0.1 μF ceramic capacitor. |
| 5 | +IN B | Non-inverting input for Channel B; electrically isolated from Channel A but shares same V+ and V− pins. |
| 6 | −IN B | Inverting input for Channel B; exhibits identical bias current polarity reversal vs. common-mode voltage as Channel A (Fig. 10). |
| 7 | OUT B | Amplifier B output; independent channel with identical dynamic and DC specs to OUT A. |
| 8 | V+ | Positive supply terminal; supports up to 36 V; PSRR = 76 dB (−40°C to +125°C) minimizes supply ripple coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full 0–5 V signal handling in 5 V single-supply systems without external level-shifting circuitry. |
| Low 3.9 nV/√Hz voltage noise | Preserves signal-to-noise ratio in low-amplitude sensor interfaces (e.g., thermopile, strain gauge) without requiring post-amplification. |
| Unity-gain stable | Eliminates need for external compensation components in voltage-follower or gain-of-1 configurations used in ADC input buffers. |
| High slew rate (4.0 V/μs) | Supports fast-settling (>0.01% in 2.5 μs) for 1 V step signals, critical in DAC output stages driving multiplexed data acquisition systems. |
| Extended temperature range (−40°C to +125°C) | Guarantees parametric performance in automotive engine control units and industrial PLC analog I/O modules. |
Applications
| Battery-Powered Instrumentation | DAC Output Amplifier |
|---|---|
|
Use Scenario: Portable multimeter measuring 0–10 V DC signals using a 3.3 V microcontroller and 12-bit SAR ADC. IC Role / Device Role / Timing Role: OP284ESZ-REEL7 serves as input buffer and level-shifter, accepting 0–10 V input and scaling to 0–3.3 V for ADC sampling. Use Value: Rail-to-rail input allows full 0–10 V range capture; low 65 μV offset ensures <0.1% measurement error at 10 V full scale. |
Use Scenario: Precision 16-bit DAC (e.g., AD5686) generating programmable 0–5 V analog outputs for actuator control. IC Role / Device Role / Timing Role: OP284ESZ-REEL7 acts as output amplifier with gain = 1, driving capacitive loads up to 300 pF while maintaining monotonicity. Use Value: 4.0 V/μs slew rate prevents distortion on 10 VPP 100 kHz waveforms; 3.9 nV/√Hz noise avoids degrading DAC's 98 dB SFDR. |
| Power Supply Control and Protection | ADC Input Buffer |
|
Use Scenario: Overvoltage protection circuit monitoring 24 V DC bus in industrial power supply, triggering shutdown at 26.5 V. IC Role / Device Role / Timing Role: OP284ESZ-REEL7 configured as comparator with precise 2.5 V reference, comparing scaled bus voltage against threshold. Use Value: 86 dB CMRR rejects common-mode noise from switching regulators; 165 μV max offset over temperature ensures ±50 mV trip point accuracy. |
Use Scenario: Front-end for 14-bit delta-sigma ADC (e.g., ADS1256) digitizing ±10 mV thermocouple signals with cold-junction compensation. IC Role / Device Role / Timing Role: OP284ESZ-REEL7 provides low-noise, high-input-impedance amplification (gain = 500) before ADC sampling. Use Value: 3.9 nV/√Hz noise contributes <100 nV RMS integrated noise in 10 Hz bandwidth, preserving effective resolution >16 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8676ARZ-REEL7 | Lower offset (12 μV typ.), higher GBP (10 MHz), but only 2.5 V to 12 V supply range and no rail-to-rail output (saturates 1 V from rails). | Better for low-voltage, high-precision DC circuits (e.g., strain gauge bridges), unsuitable for 24 V industrial signal chains requiring full-rail swing. | Select AD8676ARZ-REEL7 when ultra-low offset dominates requirements and supply is ≤12 V; avoid for 24 V systems or rail-to-rail output needs. |
| OPA2188AIDR | Zero-drift architecture (0.003 μV/°C drift), lower noise (5.6 nV/√Hz), but slower slew rate (0.8 V/μs) and narrower GBP (2 MHz). | Ideal for high-stability DC measurements (e.g., pH sensors), but cannot support >100 kHz signal bandwidths required in DAC reconstruction. | Choose OPA2188AIDR for microvolt-level DC stability over temperature; choose OP284ESZ-REEL7 when AC fidelity and rail-to-rail swing are mandatory. |
Compared with AD8676ARZ-REEL7 and OPA2188AIDR, OP284ESZ-REEL7 uniquely balances wide supply range (3–36 V), rail-to-rail I/O, 4 MHz bandwidth, and sub-100 μV offset - making it the only option among the three qualified for both 24 V industrial control and portable 3.3 V instrumentation.
Availability
OP284ESZ-REEL7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, power supply control and protection, and telecommunications infrastructure requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OP284ESZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The OP284ESZ-REEL7 belongs to the OPx84 family of precision rail-to-rail op-amps engineered specifically for portable instrumentation and single-supply industrial signal conditioning where simultaneous AC bandwidth, DC accuracy, and supply flexibility are non-negotiable.
FAQ
What is the maximum supply voltage for OP284ESZ-REEL7?
The OP284ESZ-REEL7 supports a supply voltage range of 3 V to 36 V (single-supply) or ±1.5 V to ±18 V (dual-supply). Absolute maximum ratings specify ±18 V on V+ and V−, meaning the total differential supply must not exceed 36 V. Operation beyond these limits risks permanent damage per Table 5 in the Rev. J datasheet.
Does OP284ESZ-REEL7 support rail-to-rail output at full rated load current?
Yes - the OP284ESZ-REEL7 delivers rail-to-rail output swing down to 125 mV above V− and 200 mV below V+ at 1 mA load (Table 2, VOH/VOL). At ±6.5 mA maximum output current, the swing degrades to ~200 mV from each rail, as confirmed by Figure 12's output voltage vs. load current curves across ±15 V, +5 V, and +3 V supplies.
Is OP284ESZ-REEL7 unity-gain stable, and what compensation is required?
Yes, the OP284ESZ-REEL7 is explicitly unity-gain stable per the General Description and Features sections. No external compensation components are needed in gain-of-1 configurations such as voltage followers or non-inverting buffers. This is enabled by internal frequency compensation optimized for 4 MHz GBP and 45° phase margin (Table 2).
How does input bias current behave across common-mode voltage in OP284ESZ-REEL7?
The OP284ESZ-REEL7 uses complementary NPN/PNP input pairs, causing input bias current to change magnitude and polarity across the common-mode range (Figure 10 and Functional Description). At mid-supply, IB is ~60 nA; near V− it becomes strongly negative (~−400 nA), and near V+ it becomes positive (~+300 nA). Balanced source impedances are essential to minimize offset errors.
What is the guaranteed input offset voltage specification for OP284ESZ-REEL7 over temperature?
The OP284ESZ-REEL7 is an E-grade device with guaranteed input offset voltage of 65 μV typical and 165 μV maximum over the full operating temperature range of −40°C to +125°C (Table 2, "Offset Voltage, OP184/OP284E Grade"). This is measured approximately 0.5 seconds after power application, per footnote 1 in the datasheet.
OP284ESZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4V/µs
- Gain Bandwidth Product:
- 4.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- -
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OP284ESZ-REEL7 FAQ
1.How can I place an order for OP284ESZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for OP284ESZ-REEL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for OP284ESZ-REEL7 reliable?
The price and inventory of OP284ESZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP284ESZ-REEL7 is usually 5 days.
3.What payment methods are accepted for OP284ESZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP284ESZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP284ESZ-REEL7?
OP284ESZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP284ESZ-REEL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for OP284ESZ-REEL7?
For technical support, including OP284ESZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP284ESZ-REEL7 requirements.
6.How does Aetrix verify that OP284ESZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All OP284ESZ-REEL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that OP284ESZ-REEL7 meets industry standards.
7.What is the process for return or replacement of OP284ESZ-REEL7?
All OP284ESZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with OP284ESZ-REEL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The OP284ESZ-REEL7 part is unused and in its original packaging.
Return procedure for OP284ESZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OP284ESZ-REEL7 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
