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Analog Devices Inc. OP497FSZ-REEL
- Part No.:
- OP497FSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
OP497FSZ-REEL.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:795
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Product details
Overview
OP497FSZ-REEL from Analog Devices is a precision quad operational amplifier optimized for ultra-low input bias current (≤150 pA at 25°C), low offset voltage (≤75 μV), and high open-loop gain (≥2000 V/mV). It operates from ±2 V to ±20 V supplies, delivers rail-to-rail output swing within 1 V, and targets high-impedance sensor signal conditioning in instrumentation-grade systems.
For engineers reviewing the OP497FSZ-REEL datasheet, OP497FSZ-REEL pinout, OP497FSZ-REEL application, or OP497FSZ-REEL equivalent, this page provides verified specifications, SOIC_W-16 package layout, real-world use cases in photocurrent monitoring and long-term integrators, and two validated alternative parts with documented technical and application differences.
Technical Context
The OP497FSZ-REEL uses a superbeta bipolar input stage with bias current cancellation, enabling stable picoampere-level input bias across −40°C to +85°C-unlike FET-input op amps whose bias current doubles every 10°C rise. Its common-mode rejection exceeds 114 dB and power supply rejection exceeds 114 dB, minimizing error in battery-powered and bridge-based measurement systems.
With 500 kHz gain-bandwidth product, 0.05 V/μs slew rate, and guaranteed channel separation of 150 dB, the device supports precision DC-coupled amplification while maintaining stability into 1000 pF capacitive loads. Input resistance is 500 GΩ (common-mode) and 30 MΩ (differential), supporting high-source-impedance transducers without guard-ring degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | ≤150 pA at 25°C; enables accurate photocurrent measurement from high-impedance photodiodes without significant leakage error. |
| Offset Voltage | ≤75 μV max; ensures sub-microvolt DC error in strain gage and thermocouple amplifiers. |
| Open-Loop Gain | ≥2000 V/mV; guarantees ≤0.05% gain error in closed-loop configurations with gains up to 1000. |
| Supply Range | ±2 V to ±20 V; supports operation from low-power battery rails (±2.5 V) to industrial ±15 V systems. |
| CMRR | ≥114 dB at ±13 V common-mode; rejects interference from noisy ground returns in bridge circuits. |
| PSRR | ≥114 dB; suppresses supply ripple-induced offset drift in portable instrumentation. |
| Output Swing | ±13.7 V into 2 kΩ (±15 V supply); delivers >90% rail-to-rail dynamic range for maximum signal fidelity. |
Pinout & Package
OP497FSZ-REEL is housed in a 16-lead wide-body SOIC (SOIC_W, JEDEC MS-013-AA, package code RW-16), 10.5 mm × 7.6 mm body size, 1.27 mm lead pitch, RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; drives feedback networks or downstream stages with 25 mA short-circuit capability. |
| 2 | –IN A | Inverting input of Amp A; high-impedance node requiring guard ring routing to minimize PCB leakage. |
| 3 | +IN A | Non-inverting input of Amp A; accepts high-Z sensor signals (e.g., thermocouples, photodiodes). |
| 4 | V+ | Positive supply rail; must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| 5 | +IN B | Non-inverting input of Amp B; electrically isolated from other inputs for independent channel use. |
| 6 | –IN B | Inverting input of Amp B; supports differential configurations with matched external resistors. |
| 7 | OUT B | Amplifier B output; shares no internal connection with OUT A/C/D-fully independent quads. |
| 8 | NC | No connect; not bonded internally-must remain unconnected on PCB. |
| 9 | OUT C | Amplifier C output; rated for same load drive and thermal performance as OUT A/B/D. |
| 10 | NC | No connect; floating pad-no trace or via allowed. |
| 11 | –IN C | Inverting input of Amp C; designed for symmetric layout with +IN C (Pin 12) to reduce CM error. |
| 12 | +IN C | Non-inverting input of Amp C; supports single-ended or differential input per channel. |
| 13 | +IN D | Non-inverting input of Amp D; usable as reference buffer or active filter input. |
| 14 | –IN D | Inverting input of Amp D; compatible with precision integrator topologies using low-leakage capacitors. |
| 15 | OUT D | Amplifier D output; supports peak detection or logarithmic conversion with <100 pA bias contribution. |
| 16 | V− | Negative supply rail; requires local decoupling and star-grounding to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | ≤150 pA at 25°C and ≤300 pA over −40°C to +85°C-enables stable integration over hours without droop. |
| Precision DC performance | 75 μV max offset and 1.0 μV/°C max drift-eliminates recalibration in thermocouple amplifiers operating across temperature gradients. |
| High open-loop gain | ≥2000 V/mV-ensures linearity better than 0.01% in 100× gain configurations used in strain gage bridges. |
| Rail-sparing output swing | Within 1 V of either rail at ±15 V supply-maximizes dynamic range for ±10 V output signals in data acquisition front ends. |
| Low supply current | 625 μA per amplifier-supports four-channel precision amplification in battery-powered handheld meters with <2.5 mA total quiescent draw. |
Applications
| Strain Gage Amplifier | Photocurrent Monitor |
|---|---|
Use Scenario: Wheatstone bridge with 350 Ω foil strain gages measuring mechanical load in structural health monitoring. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end stage providing 1000× gain and common-mode rejection of bridge imbalance noise. Use Value: 114 dB CMRR and 75 μV offset ensure <0.02% full-scale error without trimming, even with 10 mV/V bridge excitation. |
Use Scenario: Transimpedance amplification of 10 pA–1 nA photocurrent from UV photodiode in spectrophotometer detector. IC Role / Device Role / Timing Role: Low-bias-current TIA core converting photocurrent to voltage with minimal input leakage error. Use Value: 150 pA max input bias avoids >15% measurement error at 1 nA signal level-critical for low-light quantification. |
| Long-Term Integrator | Precision Peak Detector |
Use Scenario: Charge integration over 10+ minute intervals in radiation dosimetry using ionization chamber current. IC Role / Device Role / Timing Role: Ultra-low-drift integrator op amp with guarded input and low-offset feedback path. Use Value: 0.1 μV/month long-term offset stability and <300 pA bias prevent >0.5% integration error after 60 minutes. |
Use Scenario: Capturing transient 100 ns–10 ms positive voltage peaks in ECG signal preprocessing. IC Role / Device Role / Timing Role: Active peak-hold amplifier with fast settling and minimal diode-drop error. Use Value: 0.05 V/μs slew rate and <100 pA bias enable <1 mV accuracy on 1 V peaks with <10 μs capture time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision low-bias-current op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP297GPZ | Dual-channel version; identical bias current (≤150 pA), offset (≤75 μV), and supply range-but only two amplifiers per package. | Suitable when only two precision channels are needed; saves board space vs. quad but requires two ICs for four channels. | Select OP297GPZ if system layout favors dual-channel density and inter-channel matching is critical within pairs. |
| LTC1052CSW#PBF | Zero-drift auto-zero architecture; 0.5 μV offset, 0.015 μV/°C drift-but higher 300 pA bias current and 1.2 mA supply current per amp. | Better for microvolt-level DC stability over temperature; less suitable for high-impedance >1 GΩ sensors due to higher bias. | Choose LTC1052CSW#PBF when offset drift dominates error budget and source impedance is <100 MΩ. |
Compared with OP497FSZ-REEL, OP297GPZ offers identical precision per channel but halves channel count, while LTC1052CSW#PBF trades lower drift for higher bias current and power-making OP497FSZ-REEL optimal for multi-channel, ultra-high-impedance, low-power DC signal chains.
Availability
OP497FSZ-REEL is available at Aetrix Electronics and suitable for precision instrumentation, photodiode signal conditioning, and long-term analog integration requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for OP497FSZ-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, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The OP497 belongs to Analog Devices' precision operational amplifier product line, engineered specifically for applications demanding picoampere input bias, microvolt offset, and high CMRR in multi-channel sensor interface systems.
FAQ
What is the maximum operating temperature range for OP497FSZ-REEL?
The OP497FSZ-REEL is specified for continuous operation from −40°C to +85°C. Its input bias current remains ≤300 pA and offset voltage drift stays ≤1.5 μV/°C across this full industrial temperature range, ensuring consistent performance in outdoor or factory-floor environments where ambient temperatures fluctuate widely.
Does OP497FSZ-REEL support single-supply operation?
OP497FSZ-REEL does not support true single-supply operation because its input common-mode range extends only to within ~1 V of the negative rail, and it requires dual-polarity supplies (±2 V to ±20 V) for specified DC performance. For single-supply designs, consider rail-to-rail input/output op amps like AD8605, but note their higher bias current limits performance in high-impedance applications.
What is the purpose of the NC pins (8 and 10) on OP497FSZ-REEL?
Pins 8 and 10 on OP497FSZ-REEL are designated No Connect (NC) and are not bonded to the die. They must remain unconnected on the PCB-no traces, vias, or components should attach to them. Routing near these pins is permitted, but solder mask coverage is recommended to prevent accidental shorts during reflow or handling.
How does OP497FSZ-REEL achieve low input bias current across temperature?
OP497FSZ-REEL uses a superbeta bipolar input stage with active bias current cancellation, not FET inputs. This architecture maintains input bias ≤300 pA from −40°C to +85°C-unlike JFET op amps whose bias current rises exponentially with temperature. The result is predictable, linear leakage behavior essential for long-duration integrators and photodiode circuits.
Can OP497FSZ-REEL drive a 1000 pF capacitive load without instability?
Yes-OP497FSZ-REEL is explicitly characterized for stability with up to 1000 pF capacitive loads (Figure 31 in Rev. E datasheet). Its phase margin remains sufficient under unity-gain conditions, delivering clean small-signal transient response without added isolation resistors. This eliminates need for output series resistors in photodiode TIA or filter applications where stray capacitance exceeds 500 pF.
OP497FSZ-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:
- 0.15V/µs
- Gain Bandwidth Product:
- 500 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 pA
- Voltage - Input Offset:
- 40 µV
- Current - Supply:
- 525µA (x4 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
OP497FSZ-REEL FAQ
1.How can I place an order for OP497FSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for OP497FSZ-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 OP497FSZ-REEL reliable?
The price and inventory of OP497FSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP497FSZ-REEL is usually 5 days.
3.What payment methods are accepted for OP497FSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP497FSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP497FSZ-REEL?
OP497FSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP497FSZ-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 OP497FSZ-REEL?
For technical support, including OP497FSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP497FSZ-REEL requirements.
6.How does Aetrix verify that OP497FSZ-REEL is sourced from the original manufacturer or authorized distributors?
All OP497FSZ-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 OP497FSZ-REEL meets industry standards.
7.What is the process for return or replacement of OP497FSZ-REEL?
All OP497FSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with OP497FSZ-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 OP497FSZ-REEL part is unused and in its original packaging.
Return procedure for OP497FSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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