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Analog Devices Inc. OP20GP
- Part No.:
- OP20GP
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
OP20GP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,694
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Product details
Overview
OP20GP from Analog Devices is a monolithic micropower operational amplifier designed for precision, low-power applications. It operates from single supplies (+5 V to +30 V) or dual supplies (±2.5 V to ±15 V), features 250 µV max input offset voltage, 100 dB min CMRR, and draws only 80 µA quiescent current at ±15 V - enabling high-accuracy signal conditioning in battery-powered instrumentation and aerospace systems.
For engineers reviewing the OP20GP datasheet, OP20GP pinout, OP20GP application, or OP20GP equivalent, key selection considerations include its rail-to-rail input capability (V– to V+ –1.5 V), 100 kHz closed-loop bandwidth, low 1.5 µV/°C offset drift, and compatibility with standard 741-pinout PCB layouts in plastic DIP (P-suffix) packaging.
Technical Context
The OP20GP is a B-grade variant of the OP-20 family, specified for commercial temperature range (0°C to +70°C) in 8-pin plastic DIP (P-suffix) package. Its input stage supports common-mode voltages down to the negative rail, enabling zero-input operation from single +5 V supply, and it delivers 1000 V/mV minimum large-signal voltage gain with 0.05 V/µs slew rate.
It requires no external nulling components for basic operation but retains 741-compatible pinout with dedicated balance terminals (Pins 1 and 5) for manual offset trimming. Power supply rejection exceeds 10 µV/V (60 dB) at ±2.5 V and improves to 32 µV/V (30 dB) at +5 V to +30 V single-supply operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +5 V to +30 V single or ±2.5 V to ±15 V dual - supports wide industrial and portable power architectures |
| Input Offset Voltage | 250 µV max at +25°C - enables sub-mV accuracy in DC-coupled sensor front-ends without auto-zeroing |
| CMRR | 100 dB min - rejects >99.99% of common-mode interference in noisy environments |
| Quiescent Current | 80 µA max at ±15 V - extends battery life in remote telemetry nodes and satellite subsystems |
| Input Voltage Range | V– to V+ –1.5 V - accepts signals down to ground on single +5 V supply, simplifying level-shifting |
| Closed-Loop Bandwidth | 100 kHz at unity gain - sufficient for low-frequency precision measurement and control loops |
| Output Swing | 0.7 V to 4.1 V (RL = 10 kΩ, +5 V supply) - delivers usable dynamic range near supply rails |
Pinout & Package
OP20GP is supplied in an 8-pin plastic DIP (P-suffix) package with industry-standard 741-compatible pinout and two dedicated offset null terminals. The package is RoHS-compliant and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (–) | Connects to wiper of 10 kΩ potentiometer for manual input offset trimming |
| 2 | Inverting Input (–IN) | Differential input node accepting feedback or signal inversion paths |
| 3 | Non-Inverting Input (+IN) | Differential input node for reference or direct signal injection |
| 4 | V– (Negative Supply) | Ground or negative rail connection; defines lower input/output voltage boundary |
| 5 | Offset Null (+) | Second terminal of nulling potentiometer; completes trim circuit with Pin 1 |
| 6 | Output | Amplified analog output; drives loads ≥10 kΩ with <1.5 V headroom from rails |
| 7 | V+ (Positive Supply) | +5 V to +30 V or positive rail of dual supply; powers internal bias networks |
| 8 | No Connect | Unused terminal; must remain unconnected per datasheet specification |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 80 µA max supply current at ±15 V enables multi-year battery life in autonomous sensors |
| Rail-to-Rail Input Capability | Input common-mode range extends to V– allows direct interfacing with 0 V-referenced transducers |
| 741-Compatible Pinout | Enables drop-in replacement in legacy designs without PCB redesign or layout changes |
| High Open-Loop Gain | 1000 V/mV minimum ensures stable closed-loop performance with minimal gain error |
| Low Offset Drift | 1.5 µV/°C max (B-grade) maintains calibration integrity across commercial temperature range |
Applications
| Portable Instrumentation | Aerospace Sensor Conditioning |
|---|---|
Use Scenario: Handheld multimeters and battery-powered data loggers requiring microamp-level supply current and DC precision. IC Role / Device Role / Timing Role: Precision op-amp in transducer signal amplification and ADC driver stages. Use Value: 250 µV offset and 100 dB CMRR ensure accurate mV-level measurements without recalibration during field use. | Use Scenario: Onboard temperature and pressure sensing in LEO satellites where radiation tolerance and long-term stability are critical. IC Role / Device Role / Timing Role: Signal conditioner for RTD and thermistor bridges in telemetry front-end circuits. Use Value: 1.5 µV/°C offset drift and 0°C to +70°C rating support mission-critical calibration stability over extended orbital cycles. |
| Industrial Process Monitoring | Missile Control Analog Subsystems |
Use Scenario: 4–20 mA loop-powered transmitters in factory automation systems operating from limited supply headroom. IC Role / Device Role / Timing Role: Low-power I/V converter and filter amplifier in analog output stages. Use Value: Single +24 V operation and rail-to-rail input allow full utilization of loop voltage while maintaining linearity. | Use Scenario: Guidance system analog signal processing under high-G and thermal shock conditions. IC Role / Device Role / Timing Role: Precision amplifier in inertial measurement unit (IMU) bias correction circuits. Use Value: 100 kHz bandwidth and 0.05 V/µs slew rate support fast transient response without phase lag in closed-loop control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP27GP | Higher speed (8 MHz GBW), higher supply current (1.2 mA), tighter offset (25 µV max), not micropower | Better for medium-speed precision applications; unsuitable for battery-constrained designs | Select OP27GP only when bandwidth >100 kHz and supply current >100 µA are acceptable |
| LT1013DN8#PBF | Lower supply current (35 µA), wider temp range (–40°C to +85°C), 250 µV offset, SO-8 package | Preferred for space-constrained PCBs and extended temperature industrial use | Choose LT1013DN8#PBF when SO-8 footprint and extended temp range outweigh DIP mechanical robustness |
Compared with OP20GP, OP27GP trades micropower operation for speed and precision, while LT1013DN8#PBF offers lower current and wider temperature range in surface-mount form - making OP20GP optimal for through-hole, cost-sensitive, commercial-range precision analog designs where 100 kHz bandwidth suffices.
Availability
OP20GP is available at Aetrix Electronics and suitable for portable instrumentation, aerospace sensor conditioning, and industrial process monitoring requiring stable component supply, long-lifecycle support, and consistent parametric performance across production lots.
Supply support for OP20GP 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and defense markets since 1965.
The OP-20 family was engineered for ultra-low-power, high-precision analog signal conditioning in resource-constrained environments - particularly battery-operated test equipment, avionics, and missile guidance subsystems.
FAQ
What is the maximum operating temperature range for OP20GP?
The OP20GP is rated for commercial temperature operation from 0°C to +70°C. This range is explicitly defined in the ordering information table on page 27 of the official Analog Devices datasheet, and applies specifically to the P-suffix plastic DIP package variant. Operation outside this range may result in parametric degradation or failure, and is not guaranteed by specification.
Does OP20GP require external components for basic operation?
No, OP20GP requires no external components for basic amplifier operation. Its internal architecture supports immediate use in inverting/non-inverting configurations. However, Pins 1 and 5 are provided for optional offset nulling using a 10 kΩ potentiometer - a feature retained from the 741 pinout for applications demanding sub-100 µV residual offset.
Is OP20GP pin-compatible with the classic LM741?
Yes, OP20GP uses the standard 8-pin 741 pinout: Pin 2 (–IN), Pin 3 (+IN), Pin 6 (Output), Pin 7 (V+), Pin 4 (V–), and Pins 1/5 for offset null. This allows direct substitution in existing LM741-based designs, though users must verify supply voltage compatibility (+5 V to +30 V vs. LM741's ±15 V typical) and load drive requirements.
What is the typical input bias current of OP20GP at +25°C?
The typical input bias current of OP20GP at +25°C is 16 nA, with a maximum of 40 nA across the commercial temperature range. This value is confirmed in the "ELECTRICAL CHARACTERISTICS" table on page 27 of the datasheet under the OP-20H column (which corresponds to the GP grade), and reflects the BJT input stage design optimized for precision rather than ultra-low bias.
Can OP20GP operate from a single +5 V supply?
Yes, OP20GP is fully specified for single-supply operation from +5 V to +30 V. With its input common-mode range extending to V– (ground), it accepts 0 V–referenced inputs, and delivers output swing from 0.7 V to 4.1 V into 10 kΩ - making it suitable for direct interface with 5 V ADCs and microcontrollers without level-shifting circuitry.
OP20GP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.05V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 14 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 57µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
OP20GP FAQ
1.How can I place an order for OP20GP through Aetrix?
Please submit a Request for Quotation (RFQ) for OP20GP 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 OP20GP reliable?
The price and inventory of OP20GP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP20GP is usually 5 days.
3.What payment methods are accepted for OP20GP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP20GP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP20GP?
OP20GP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP20GP 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 OP20GP?
For technical support, including OP20GP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP20GP requirements.
6.How does Aetrix verify that OP20GP is sourced from the original manufacturer or authorized distributors?
All OP20GP 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 OP20GP meets industry standards.
7.What is the process for return or replacement of OP20GP?
All OP20GP units undergo pre-shipment inspection (PSI). If there is an issue with OP20GP, 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 OP20GP part is unused and in its original packaging.
Return procedure for OP20GP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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