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Analog Devices Inc. OP470GSZ-REEL
- Part No.:
- OP470GSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
OP470GSZ-REEL.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,046
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Product details
Overview
OP470GSZ-REEL from Analog Devices is a monolithic quad operational amplifier optimized for low-noise precision signal conditioning, featuring 5 nV/√Hz voltage noise density at 1 kHz (max), 0.4 mV input offset voltage (max), and 6 MHz gain-bandwidth product. It delivers high open-loop gain (>1000 V/mV), 110 dB common-mode rejection, and unity-gain stability in industrial instrumentation and audio front-end applications.
For engineers reviewing the OP470GSZ-REEL datasheet, OP470GSZ-REEL pinout, OP470GSZ-REEL application, or OP470GSZ-REEL equivalent, key selection criteria include low-frequency voltage noise performance, quad-channel matching for multi-stage amplification, supply current efficiency versus discrete op-amp solutions, and compatibility with legacy 14-pin DIP-based layouts using SOIC-16 footprint.
Technical Context
The OP470GSZ-REEL integrates four matched JFET-input amplifiers on a single die, achieving <2 µV/°C offset drift over –40°C to +85°C and 125 dB channel separation at 10 kHz. Its input stage operates at elevated collector currents to minimize voltage noise, trading off higher current noise (0.4 pA/√Hz at 1 kHz) - a deliberate design choice validated across military-grade variants (OP470A) and commercial-grade OP470G.
It supports dual ±4.5 V to ±18 V supplies, delivers ±12 V output swing into ≥2 kΩ loads, and maintains stability driving capacitive loads up to 1000 pF with external compensation. The architecture omits input current-limiting resistors to preserve noise performance, relying instead on back-to-back diode protection with ±1.0 V differential input voltage limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Noise Density | 3.2–5.0 nV/√Hz @ 1 kHz (max); enables sub-µV signal amplification in strain gauge and magnetic tapehead interfaces |
| Input Offset Voltage | 0.4 mV max (OP470G grade); ensures ≤0.04% gain error in 10 V full-scale instrumentation amplifiers |
| Gain-Bandwidth Product | 6 MHz typ; supports stable closed-loop gains up to 60 at 100 kHz for active filter stages |
| Common-Mode Rejection | 110 dB min; rejects >99.999% of ground-referenced interference in differential sensor readouts |
| Supply Current (all amps) | 9–11 mA total; halves power vs. four discrete OP27s, critical for thermally constrained PCBs |
| Slew Rate | 2 V/µs typ; handles 10 Vpp signals up to ~300 kHz without slewing distortion in audio buffers |
| Input Bias Current | 25 nA max; permits use with source impedances up to 10 kΩ without significant DC error |
Pinout & Package
OP470GSZ-REEL is supplied in a 16-lead SOIC (RW-16) package, 10.0 mm × 7.4 mm × 2.35 mm body, with gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a beveled corner; pins 9–16 are mirrored relative to pins 1–8 in standard SOIC layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; drives low-impedance loads up to 20 mA, requires local 0.1 µF bypass to V+ |
| 2 | –IN A | Inverting input of Amp A; high-impedance node sensitive to stray capacitance and EMI coupling |
| 3 | +IN A | Non-inverting input of Amp A; matched to –IN A for optimal CMR; guard ring recommended |
| 4 | V+ | Positive supply rail; must be decoupled with ≥10 µF tantalum + 0.1 µF ceramic near pin |
| 5 | +IN B | Non-inverting input of Amp B; electrically isolated but thermally coupled to Amp A for tracking |
| 6 | –IN B | Inverting input of Amp B; shares substrate with other amps; layout symmetry minimizes crosstalk |
| 7 | OUT B | Amplifier B output; identical drive capability to OUT A; avoid shared trace routing with OUT C/D |
| 8 | NC | No connect; internal die bond pad not wired; leave unconnected and unstubbed |
| 9 | OUT D | Amplifier D output; pin-compatible with LM148 Channel 4; verify load isolation in multi-channel designs |
| 10 | –IN D | Inverting input of Amp D; matches –IN A/B/C within 0.1 mV offset for quad buffer applications |
| 11 | +IN D | Non-inverting input of Amp D; used in matched gain blocks where inter-amplifier offset matters |
| 12 | V– | Negative supply rail; same decoupling requirement as V+; star grounding mandatory for low-noise operation |
| 13 | +IN C | Non-inverting input of Amp C; referenced to same substrate region as +IN A for thermal tracking |
| 14 | –IN C | Inverting input of Amp C; layout symmetry with –IN A reduces mismatch-induced harmonic distortion |
| 15 | OUT C | Amplifier C output; supports independent feedback networks; avoid shared return paths with OUT A |
| 16 | NC | No connect; unused bond pad; do not route traces or place vias adjacent to this pin |
Key Features
| Feature | Design Value |
|---|---|
| Very low voltage noise | 5 nV/√Hz max at 1 kHz enables resolution of microvolt-level bio-sensor and geophone signals |
| Quad amplifier matching | Channel-to-channel offset match <0.1 mV supports low-drift instrumentation amplifier topologies |
| Industry-standard pinout | SOIC-16 layout mirrors 14-pin DIP pin functions (A/B/C/D channels), easing legacy board upgrades |
| Unity-gain stability | Stable at AV = 1 without external compensation, simplifying low-gain buffer and follower designs |
| High PSRR & CMR | 1.8 mV/V PSRR max and 110 dB CMR minimize errors from noisy rails and ground loops in mixed-signal systems |
Applications
| Strain Gauge Signal Conditioning | Magnetic Tapehead Amplification |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from load cells in industrial weighing systems. IC Role / Device Role / Timing Role: Quad configuration implements matched gain stages and reference buffering for ratiometric ADC excitation. Use Value: 0.4 mV max VOS and <2 µV/°C drift ensure <0.01% full-scale error over temperature without calibration. |
Use Scenario: Low-noise preamplification of analog audio signals from professional magnetic tape playback heads. IC Role / Device Role / Timing Role: First-stage transimpedance amplifier with 10 kΩ feedback, leveraging ultra-low voltage noise below 10 Hz. Use Value: 3.2 nV/√Hz @ 1 kHz and 80 nV p-p (0.1–10 Hz) enable 95 dB SNR in 20 kHz bandwidth without cooling. |
| Digital Audio Panning Control | Five-Band Graphic Equalizer |
Use Scenario: Complementary current-to-voltage conversion in DAC-8408-based stereo panning circuits. IC Role / Device Role / Timing Role: Four matched amplifiers convert DAC outputs into amplitude-complementary analog signals. Use Value: 125 dB channel separation prevents crosstalk between left/right channels during digital ramp transitions. |
Use Scenario: Active bandpass filtering in high-fidelity consumer audio equalizers with ±15 V supplies. IC Role / Device Role / Timing Role: Quad topology implements four independent 1/3-octave filters plus summing amplifier. Use Value: 6 MHz GBW supports flat group delay up to 10 kHz; 2 V/µs slew rate avoids clipping on 10 Vpp program material. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP470GP | Same die, 14-lead PDIP package; higher θJA (76°C/W) limits power dissipation in compact enclosures | Preferred for through-hole prototyping or legacy DIP sockets; lacks tape-and-reel packaging for SMT lines | Select OP470GP only when manual assembly or socket-based testing is required; OP470GSZ-REEL is superior for automated production. |
| OP471ARZ | Higher slew rate (8 V/µs), 10 MHz GBW, but increased voltage noise (6.5 nV/√Hz @ 1 kHz) | Better suited for wideband active filters and video signal conditioning where speed outweighs noise priority | Choose OP471ARZ when closed-loop bandwidth >500 kHz is needed; OP470GSZ-REEL remains optimal for sub-100 kHz precision sensing. |
Compared with OP470GP and OP471ARZ, OP470GSZ-REEL provides the lowest voltage noise in SOIC packaging with verified 125 dB channel separation - making it the preferred choice for multi-channel low-frequency instrumentation where thermal drift and inter-channel coupling must be minimized.
Availability
OP470GSZ-REEL is available at Aetrix Electronics and suitable for industrial weighing systems, professional audio equipment, and medical diagnostic instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OP470GSZ-REEL 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, founded in 1965 and headquartered in Wilmington, MA.
The OP470 product line was engineered for precision analog signal chains in test & measurement, audio, and industrial control - emphasizing low-noise, low-drift, and quad-channel integration without sacrificing DC accuracy or dynamic range.
FAQ
What is the maximum operating temperature range for OP470GSZ-REEL?
The OP470GSZ-REEL is rated for operation from –40°C to +85°C, consistent with the OP470G grade specification. This range is validated per JEDEC JESD22-A108, with guaranteed performance including 0.4 mV max input offset voltage and 110 dB min CMR across the full span. Thermal derating is not required within these limits.
Does OP470GSZ-REEL require external compensation for unity-gain stability?
No, OP470GSZ-REEL is internally compensated for unity-gain stability. It achieves stable operation with closed-loop gains ≥1 without added capacitors or resistors. The 6 MHz gain-bandwidth product and 58° phase margin at unity gain are confirmed in TPC 16 of the official datasheet.
Can OP470GSZ-REEL drive a 600 Ω audio load directly?
Yes, OP470GSZ-REEL can drive a 600 Ω load with ±12 V output swing (RL ≥ 2 kΩ minimum specified), but output current capability is limited to ±20 mA short-circuit. For sustained 10 Vpp into 600 Ω (16.7 mA peak), thermal design must account for 11 mA total quiescent current plus dynamic dissipation; a series 10 Ω resistor is recommended for protection.
How does the noise performance of OP470GSZ-REEL compare to OP400?
OP470GSZ-REEL has lower voltage noise (3.2 nV/√Hz @ 1 kHz) than OP400 (13 nV/√Hz), but higher current noise (0.4 pA/√Hz vs. 0.1 pA/√Hz). Below 1 kΩ source resistance, OP470GSZ-REEL delivers lower total input-referred noise; above 20 kΩ, OP400 becomes superior - as shown in Figure 4 of the OP470 datasheet.
Is OP470GSZ-REEL pin-compatible with LM148 in SOIC-16 layout?
OP470GSZ-REEL uses a 16-lead SOIC package with pin functions mapped to match the 14-pin LM148 DIP pinout (e.g., OUT A, –IN A, +IN A, V+, +IN B, –IN B, OUT B, NC, OUT D, –IN D, +IN D, V–, +IN C, –IN C, OUT C, NC). Pins 8 and 16 are no-connect; all active pins align functionally, enabling drop-in replacement in properly adapted footprints.
OP470GSZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 9mA
- 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
OP470GSZ-REEL FAQ
1.How can I place an order for OP470GSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for OP470GSZ-REEL 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 OP470GSZ-REEL reliable?
The price and inventory of OP470GSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP470GSZ-REEL is usually 5 days.
3.What payment methods are accepted for OP470GSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP470GSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP470GSZ-REEL?
OP470GSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP470GSZ-REEL 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 OP470GSZ-REEL?
For technical support, including OP470GSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP470GSZ-REEL requirements.
6.How does Aetrix verify that OP470GSZ-REEL is sourced from the original manufacturer or authorized distributors?
All OP470GSZ-REEL 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 OP470GSZ-REEL meets industry standards.
7.What is the process for return or replacement of OP470GSZ-REEL?
All OP470GSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with OP470GSZ-REEL, 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 OP470GSZ-REEL part is unused and in its original packaging.
Return procedure for OP470GSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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