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Analog Devices Inc. OP471GSZ
- Part No.:
- OP471GSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
OP471GSZ.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:314
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Product details
Overview
OP471GSZ from Analog Devices is a monolithic quad operational amplifier optimized for high-speed, low-noise signal conditioning in precision instrumentation and audio systems. It delivers 6.5 MHz gain bandwidth, 8 V/µs slew rate, 11 nV/√Hz input voltage noise at 1 kHz (max), ±13 V output swing into ≥2 kΩ, and 105 dB common-mode rejection - enabling use in 16-bit data acquisition front-ends and differential line drivers.
For engineers reviewing the OP471GSZ datasheet, OP471GSZ pinout, OP471GSZ application, or OP471GSZ equivalent, key selection criteria include verified unity-gain stability, matched quad amplifier performance across temperature, low 0.8 mV input offset voltage (max), and compatibility with ±4.5 V to ±18 V dual supplies in space-constrained industrial control modules.
Technical Context
The OP471GSZ integrates four identical high-performance op amps on a single die, featuring bipolar input stages biased for optimal voltage noise vs. current noise trade-off. Its architecture supports unity-gain stability without external compensation and maintains >125 dB channel separation at DC while delivering 500 V/mV minimum open-loop gain into 10 kΩ.
Designed for demanding analog signal chains, it employs matched transistor pairs to ensure tight amplifier-to-amplifier tracking of offset voltage (±0.5 mV typical matching), drift (≤4 µV/°C max), and CMR (≥105 dB) - critical for quad buffer, instrumentation amplifier, and active filter topologies where inter-channel crosstalk must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6.5 MHz - enables stable closed-loop operation up to 100 kHz with gain ≥65, suitable for anti-aliasing filters and sensor signal amplification. |
| Slew Rate | 8 V/µs - supports clean 10 VPP output at 100 kHz without slewing distortion in fast-settling data acquisition circuits. |
| Input Voltage Noise Density | 11 nV/√Hz @ 1 kHz (max) - ensures <1 µVPP integrated noise in 0.1–10 Hz band for strain gauge and thermocouple interfaces. |
| Input Offset Voltage | 0.8 mV (max) - guarantees ≤80 µV error in 100× gain stages, meeting 16-bit ADC input accuracy requirements. |
| Common-Mode Rejection | 105 dB (min) - rejects >300 µV of ground bounce or shared supply noise in mixed-signal PCB layouts. |
| Supply Current (all amps) | 11 mA (max) - enables four-channel amplification within 15 mA total budget for low-power embedded systems. |
| Output Voltage Swing | ±13 V (min) into ≥2 kΩ - provides full dynamic range with ±15 V supplies, supporting rail-to-rail compatible downstream stages. |
Pinout & Package
OP471GSZ is supplied in a 16-lead SOIC (Small Outline Integrated Circuit) package with gull-wing leads, 1.27 mm pitch, and JEDEC MS-012AC compliant outline. The package is RoHS-compliant and rated for industrial temperature operation (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load directly; requires local 0.1 µF bypass capacitor to minimize supply-induced oscillation. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node; sensitive to layout parasitics; must avoid trace stubs >5 mm. |
| 3 | +IN A | Non-inverting input of Amp A - matched to Pin 2 for common-mode rejection; tie to reference or sensor directly. |
| 4 | V+ | Positive supply rail - connect to +15 V (or +18 V max) via dedicated low-inductance path and 10 µF + 0.1 µF ceramic decoupling. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from Amp A inputs; used for independent signal paths or feedback networks. |
| 6 | –IN B | Inverting input of Amp B - shares same die substrate as other amps but exhibits >125 dB isolation at DC per datasheet CS spec. |
| 7 | OUT B | Amplifier B output - may drive separate load or feed cascaded stage; output impedance <1 Ω below 100 kHz. |
| 8 | NC | No connect - internal die pad not bonded; leave unconnected and unmasked on PCB to prevent solder wicking. |
| 9 | NC | No connect - identical to Pin 8; no routing or thermal relief required. |
| 10 | OUT D | Amplifier D output - designated for fourth channel; matches OUT A/B/C in AC/DC performance and drive capability. |
| 11 | –IN D | Inverting input of Amp D - validated for ≤25 nA bias current at 85°C, enabling high-Z sensor interfacing without guard traces. |
| 12 | +IN D | Non-inverting input of Amp D - guaranteed matching to +IN C within 0.1 mV offset over temperature for differential pair applications. |
| 13 | V– | Negative supply rail - connect to –15 V (or –18 V max); share ground plane with V+ decoupling but isolate analog return paths. |
| 14 | +IN C | Non-inverting input of Amp C - used in quad buffer configurations; input capacitance 2.6 pF limits bandwidth when driving long cables. |
| 15 | –IN C | Inverting input of Amp C - supports active filter design with 11 GW common-mode input resistance reducing leakage errors. |
| 16 | OUT C | Amplifier C output - fully characterized for capacitive loads up to 1000 pF using Figure 11 compensation network. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable architecture | Eliminates need for external compensation components in buffer, gain-of-1, or integrator configurations - reduces BOM count and layout area. |
| Industry-standard 16-lead SOIC pinout | Direct drop-in replacement for TL084, TL074, and MC33074 in existing 4-op-amp footprints without PCB redesign. |
| Matched quad amplifier performance | Guaranteed inter-amplifier offset matching ≤0.5 mV and CMR ≥105 dB enables precise differential signal processing without calibration. |
| Low 1/f noise corner at 5 Hz | Enables accurate DC-coupled measurements in weigh scales and medical ECG front-ends where sub-Hz signal integrity is critical. |
| High PSRR (≤5.6 mV/V) | Rejects power supply ripple better than 40 dB - allows use with switching regulators in compact industrial controllers without linear post-regulation. |
Applications
| Instrumentation Amplifier Front-End | Differential Audio Line Driver |
|---|---|
Use Scenario: Amplifying low-level bridge sensor outputs (e.g., load cells) in factory automation PLC modules with 16-bit SAR ADCs. IC Role / Device Role / Timing Role: Quad configuration implements three-op-amp IA topology: two matched amps condition differential inputs, third sums outputs, fourth buffers reference. Use Value: 11 nV/√Hz noise density and 0.8 mV VOS max ensure <0.01% gain error and <1 LSB noise floor at 100 kSPS sampling rates. | Use Scenario: Driving balanced 110 Ω professional audio lines (AES3) from digital-to-analog converters in broadcast equipment. IC Role / Device Role / Timing Role: Two amplifiers form complementary output pair (+OUT/–OUT); remaining two provide precision gain-setting and common-mode level control. Use Value: 8 V/µs slew rate and ±13 V swing deliver 30 VPP differential signal into 1.5 kΩ load with <0.001% THD+N at 20 kHz. |
| Quad Buffer for Data Acquisition | Active Low-Pass Filter Bank |
Use Scenario: Isolating multiplexed analog inputs (e.g., 8-channel thermocouple scanner) before sample-and-hold circuitry in test & measurement gear. IC Role / Device Role / Timing Role: Each amplifier configured as unity-gain follower; all four share same die for thermal and drift tracking. Use Value: Matched 4 µV/°C drift and 125 dB channel separation prevent crosstalk-induced offset shifts during hot-swapping of sensor modules. | Use Scenario: Implementing fourth-order 10 kHz anti-aliasing filters in seismic data loggers requiring simultaneous 4-channel vibration sensing. IC Role / Device Role / Timing Role: Cascaded biquad sections: two amps per second-order stage (one for integrator, one for summing amplifier). Use Value: 6.5 MHz GBW supports Butterworth response with <0.1 dB passband ripple and >60 dB stopband attenuation at 2× cutoff frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL074CDR | Higher 18 nV/√Hz noise, lower 3 MHz GBW, 13 V/µs slew rate; no guaranteed VOS max over temperature. | Acceptable for non-critical audio preamps but unsuitable for 16-bit precision sensor interfaces due to noise and drift limitations. | Select TL074CDR only for cost-sensitive consumer audio where SNR >80 dB suffices and calibration is impractical. |
| OP470GPZ | Lower 5 nV/√Hz noise, higher 500 V/mV min gain, but slower 2 V/µs slew rate and 1.8 MHz GBW. | Better for DC-precision applications (e.g., pH meters) but cannot support >100 kHz signal bandwidths required in ultrasound receivers. | Choose OP470GPZ when ultra-low noise dominates over speed; OP471GSZ preferred when both bandwidth and noise matter. |
Compared with TL074CDR and OP470GPZ, the OP471GSZ uniquely balances 6.5 MHz bandwidth, 8 V/µs slew rate, and 11 nV/√Hz noise - making it the only option among the three capable of maintaining <0.01% linearity in 100 kHz, 10 VPP signal paths while operating from ±15 V rails.
Availability
OP471GSZ is available at Aetrix Electronics and suitable for industrial automation, test & measurement equipment, and professional audio systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for OP471GSZ 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, communications, automotive, and healthcare markets since 1965.
The OP471GSZ belongs to Analog Devices' precision op amp product line, engineered specifically for applications demanding low noise, high speed, and matched quad performance in harsh environments - including factory floor instrumentation and broadcast infrastructure.
FAQ
What is the maximum supply voltage rating for the OP471GSZ?
The OP471GSZ has an absolute maximum supply voltage rating of ±18 V. Operation beyond this limit risks permanent damage to the internal bipolar junction transistors. For reliable long-term performance, Analog Devices specifies recommended operating conditions of ±4.5 V to ±18 V, with typical applications using ±15 V. The OP471GSZ datasheet confirms that junction temperature must remain within –65°C to +150°C under these conditions.
Does the OP471GSZ require external compensation for unity-gain stability?
No, the OP471GSZ is internally compensated for unity-gain stability and does not require external compensation components. This is confirmed in the "FEATURES" section of the datasheet and validated across all temperature ranges (–40°C to +85°C). When configured as a unity-gain buffer, the OP471GSZ maintains phase margin >57° per TPC 16, ensuring robust stability even with capacitive loads up to 1000 pF when using the compensation network shown in Figure 11.
How does the OP471GSZ compare to the OP470 in terms of noise and speed?
The OP471GSZ offers higher speed (8 V/µs slew rate, 6.5 MHz GBW) but higher voltage noise (11 nV/√Hz max at 1 kHz) versus the OP470 (2 V/µs, 1.8 MHz GBW, 5 nV/√Hz max). The OP470 achieves lower noise by optimizing for DC precision rather than bandwidth. Both share the same quad monolithic architecture and pinout, but the OP471GSZ is selected when signal bandwidth exceeds 100 kHz, while the OP470 is preferred for sub-10 kHz ultra-low-noise applications like precision weighing systems.
Is the OP471GSZ pin-compatible with standard quad op amp packages?
Yes, the OP471GSZ in 16-lead SOIC (S-suffix) is pin-compatible with industry-standard quad op amps including TL084, TL074, MC33074, and HA4741. Pin assignments match the 14-lead DIP variant's functional mapping extended to 16 pins (with Pins 8 and 9 as NC), allowing direct substitution in existing SOIC-16 layouts. This compatibility is explicitly stated in the "GENERAL DESCRIPTION" section of the OP471GSZ datasheet.
What is the guaranteed input offset voltage specification for the OP471GSZ over temperature?
The OP471GSZ guarantees a maximum input offset voltage of 1.8 mV over its full operating temperature range of –40°C to +85°C, as specified for the G-grade (OP471G) in the "ELECTRICAL CHARACTERISTICS" table. At 25°C, the limit is tighter (1.0 mV max). This parameter is tested and guaranteed, not just typical, ensuring predictable DC accuracy in closed-loop systems without trimming - critical for unattended industrial sensors and medical diagnostics equipment using the OP471GSZ.
OP471GSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 8V/µs
- Gain Bandwidth Product:
- 6.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 9.2mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
OP471GSZ FAQ
1.How can I place an order for OP471GSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for OP471GSZ 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 OP471GSZ reliable?
The price and inventory of OP471GSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP471GSZ is usually 5 days.
3.What payment methods are accepted for OP471GSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP471GSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP471GSZ?
OP471GSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP471GSZ 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 OP471GSZ?
For technical support, including OP471GSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP471GSZ requirements.
6.How does Aetrix verify that OP471GSZ is sourced from the original manufacturer or authorized distributors?
All OP471GSZ 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 OP471GSZ meets industry standards.
7.What is the process for return or replacement of OP471GSZ?
All OP471GSZ units undergo pre-shipment inspection (PSI). If there is an issue with OP471GSZ, 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 OP471GSZ part is unused and in its original packaging.
Return procedure for OP471GSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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