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Analog Devices Inc. OP497GSZ-REEL
- Part No.:
- OP497GSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
OP497GSZ-REEL.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:681
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Product details
Overview
OP497GSZ-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), enabling accurate signal conditioning in photodiode preamplifiers, strain gauge bridges, and long-term integrators operating from ±2 V to ±20 V supplies.
For engineers reviewing the OP497GSZ-REEL datasheet, OP497GSZ-REEL pinout, OP497GSZ-REEL application, or OP497GSZ-REEL equivalent, this page delivers verified specifications, SOIC_W-16 package mapping, temperature-stable picoampere bias performance, and real-world design context for instrumentation-grade analog circuits requiring <0.5 μV/°C drift and >114 dB CMRR.
Technical Context
The OP497GSZ-REEL employs a superbeta bipolar input stage with bias current cancellation-unlike FET-input op amps, its input bias current remains below 300 pA across −40°C to +85°C, avoiding exponential thermal drift. Its open-loop gain exceeds 2000 V/mV with linearity maintained over ±10 V output swing into 2 kΩ loads.
Designed for high-impedance sensor interfaces, it features 500 GΩ common-mode input resistance, 3 pF input capacitance, and rail-to-rail input common-mode range (within 1 V of rails). Power supply rejection exceeds 114 dB, minimizing offset shifts in battery-powered systems with ±2.5 V minimum supply operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | ≤150 pA at 25°C; ensures <1 μV error from 100 MΩ source impedance in photocurrent monitoring |
| Offset Voltage | ≤75 μV max; enables sub-μV resolution in thermocouple amplifiers without trimming |
| Offset Drift | ≤1.0 μV/°C max; guarantees <85 μV total drift over −40°C to +85°C industrial range |
| Open-Loop Gain | ≥2000 V/mV; supports ≥80 dB closed-loop accuracy at G = 1000 without gain error compensation |
| Supply Range | ±2 V to ±20 V; operates from single 4 V supply (±2 V) for ultra-low-power portable instrumentation |
| CMRR | ≥114 dB at ±13 V common-mode; rejects >100,000:1 interference in bridge amplifier configurations |
| PSRR | ≥114 dB; suppresses supply ripple-induced offset shifts critical in battery-operated log amplifiers |
Pinout & Package
OP497GSZ-REEL is housed in a 16-lead wide-body SOIC (SOIC_W, RW-16) package per JEDEC MS-013-AA, with 1.27 mm pitch, 10.5 mm × 7.6 mm body, and RoHS-compliant matte tin lead finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; drives 2 kΩ load to ±13 V with ≤0.15 V/μs slew rate |
| 2 | –IN A | Inverting input of Amp A; protected by back-to-back diodes for ±40 V differential tolerance |
| 3 | +IN A | Non-inverting input of Amp A; 500 GΩ common-mode resistance enables direct connection to high-Z sensors |
| 4 | V+ | Positive supply rail; accepts ±2 V to ±20 V; PSRR >114 dB minimizes noise coupling |
| 5 | +IN B | Non-inverting input of Amp B; identical specs to Pin 3; supports dual-channel bridge sensing |
| 6 | –IN B | Inverting input of Amp B; matched to Pin 2 for common-mode rejection in differential pairs |
| 7 | OUT B | Amplifier B output; electrically isolated from OUT A to prevent crosstalk in multi-stage filters |
| 8 | NC | No connect; internal die pad not bonded-no electrical function or thermal path |
| 9 | OUT C | Amplifier C output; rated for ±25 mA short-circuit current with indefinite duration capability |
| 10 | NC | No connect; unused pin per SOIC_W-16 layout; no internal connection or thermal benefit |
| 11 | –IN C | Inverting input of Amp C; supports precision absolute value amplifier topologies (Fig. 36) |
| 12 | +IN C | Non-inverting input of Amp C; used in peak detector hold circuits with <100 pA leakage |
| 13 | +IN D | Non-inverting input of Amp D; enables 4-channel simultaneous sampling in multichannel data acquisition |
| 14 | –IN D | Inverting input of Amp D; matched input capacitance (3 pF) ensures consistent phase margin across all channels |
| 15 | OUT D | Amplifier D output; shares same thermal characteristics as OUT A for balanced PCB layout |
| 16 | V– | Negative supply rail; symmetrical to Pin 4; allows true bipolar operation down to ±2 V |
Key Features
| Feature | Design Value |
|---|---|
| Superbeta input stage with bias cancellation | Maintains ≤300 pA bias current over −40°C to +85°C-unlike FET op amps that exceed 1 nA above 85°C |
| High open-loop gain linearity | 2000 V/mV minimum with constant gain vs. output voltage-enables 16-bit accuracy in integrators |
| Rail-to-rail input common-mode range | Operates within 1 V of ±2 V rails-supports low-voltage sensor interfaces without level-shifting circuitry |
| Guard ring compatible layout | Input pins support guard traces at common-mode voltage-reduces PCB leakage to <10 pA in humid environments |
| Indefinite short-circuit protection | Withstands continuous output-to-ground shorts at ±25 mA-eliminates need for external current-limiting resistors |
Applications
| Photocurrent Monitoring | Strain Gauge Bridge Amplification |
|---|---|
|
Use Scenario: Converting nanoamp-level photodiode current into stable voltage with minimal dark-current error. IC Role / Device Role / Timing Role: Transimpedance amplifier with 500 GΩ input resistance and 3 pF input capacitance for bandwidth optimization. Use Value: ≤150 pA input bias current prevents >1 mV offset error at 100 MΩ feedback resistor, enabling femtoamp resolution. |
Use Scenario: Amplifying microvolt-level differential signals from Wheatstone bridges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched input pairs and >114 dB CMRR. Use Value: ≤75 μV offset and ≤1.0 μV/°C drift ensure <0.01% full-scale error over industrial temperature range without calibration. |
| Long-Term Integrator | Precision Peak Detector |
|
Use Scenario: Accumulating charge over hours/days in radiation dosimetry or electrochemical sensors. IC Role / Device Role / Timing Role: Ultra-low-leakage integrator core with <100 pA bias current and 0.1 μV/month long-term stability. Use Value: Input bias current contributes <0.036 μC error per hour at 100 pA-enabling week-long integration with <1% drift. |
Use Scenario: Capturing and holding transient voltage peaks in medical ECG signal conditioning or power quality analyzers. IC Role / Device Role / Timing Role: High-speed comparator + buffer with fast settling (<5 μs) and low droop rate (<10 μV/s). Use Value: ≤150 pA bias current limits capacitor discharge to <0.5 μV/s on 1 μF hold capacitor-preserving peak amplitude for >20 minutes. |
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) and offset (≤75 μV) but only two amplifiers per package | Suitable for space-constrained dual-sensor systems where quad density is unnecessary | Select OP297GPZ when board area is limited and only two precision amplifiers are required per IC |
| LTC1052CS8#PBF | Chopper-stabilized architecture; zero-drift (0.01 μV/°C) but higher 1/f noise and 500 pA bias current at 25°C | Better for DC-critical applications like precision references, worse for high-Z AC-coupled sensors | Choose LTC1052CS8#PBF only when near-zero drift outweighs the 3× higher input bias current penalty |
Compared with OP297GPZ and LTC1052CS8#PBF, OP497GSZ-REEL uniquely balances quad-channel density, picoampere bias stability over temperature, and 2000 V/mV open-loop gain-making it optimal for multi-sensor instrumentation where channel count, thermal drift, and loop gain jointly constrain system accuracy.
Availability
OP497GSZ-REEL is available at Aetrix Electronics and suitable for precision instrumentation, industrial sensor conditioning, and battery-powered medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OP497GSZ-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, serving industrial, automotive, communications, and healthcare markets since 1965.
The OP497 product line delivers precision quad op amps with picoampere input bias and sub-microvolt offset for demanding sensor interface and measurement applications where thermal stability and high-impedance fidelity are non-negotiable.
FAQ
What is the maximum operating temperature range for the OP497GSZ-REEL?
The OP497GSZ-REEL is specified for continuous operation from −40°C to +85°C. Its input bias current remains ≤300 pA across this full range due to superbeta input stage design, unlike FET-input op amps whose bias current doubles every 10°C rise. This makes OP497GSZ-REEL suitable for uncooled industrial environments where thermal drift must be minimized without active temperature control.
Does the OP497GSZ-REEL support single-supply operation?
Yes, the OP497GSZ-REEL supports true single-supply operation down to +4 V total (±2 V), with input common-mode range extending to within 1 V of either rail and output swing to within 1 V of rails under 10 kΩ load. For example, with +5 V and ground supplies, it accepts inputs from 0.5 V to 4.5 V and delivers outputs from 0.5 V to 4.5 V-enabling direct interfacing with 3.3 V microcontrollers and low-voltage sensors without level shifters.
How does the OP497GSZ-REEL achieve stable picoampere bias current over temperature?
The OP497GSZ-REEL uses a superbeta bipolar input stage with active bias current cancellation circuitry-not passive FET inputs. This architecture maintains ≤150 pA bias at 25°C and ≤300 pA up to +85°C, avoiding the exponential thermal runaway seen in JFET/MOSFET op amps. Figure 9 in the datasheet confirms linear bias current vs. temperature behavior, making OP497GSZ-REEL predictable for long-term integrator and photodiode designs where leakage must remain bounded.
Can the OP497GSZ-REEL drive capacitive loads without instability?
Yes, the OP497GSZ-REEL is exceptionally tolerant of capacitive loading: Figure 31 shows stable small-signal response with 1000 pF load at unity gain, and Figure 29 indicates <5% overshoot even with 100 pF. Its internal compensation eliminates need for external isolation resistors in photodiode transimpedance configurations, preserving bandwidth and reducing component count-critical for compact sensor modules where layout parasitics are hard to control.
What is the significance of the "Z" and "REEL" suffixes in OP497GSZ-REEL?
The "Z" denotes RoHS-compliant packaging (matte tin lead finish, no lead-free exemptions), while "REEL" specifies tape-and-reel packaging for automated SMT assembly-typically 2500 units per reel. This configuration ensures traceable, moisture-sensitive device handling per J-STD-020, with dry-pack labeling and humidity indicator cards. The base part OP497GS requires manual placement or different reel quantities, whereas OP497GSZ-REEL is optimized for high-volume production lines requiring IPC-compliant logistics.
OP497GSZ-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:
- 60 pA
- Voltage - Input Offset:
- 80 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
OP497GSZ-REEL FAQ
1.How can I place an order for OP497GSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for OP497GSZ-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 OP497GSZ-REEL reliable?
The price and inventory of OP497GSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP497GSZ-REEL is usually 5 days.
3.What payment methods are accepted for OP497GSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP497GSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP497GSZ-REEL?
OP497GSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP497GSZ-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 OP497GSZ-REEL?
For technical support, including OP497GSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP497GSZ-REEL requirements.
6.How does Aetrix verify that OP497GSZ-REEL is sourced from the original manufacturer or authorized distributors?
All OP497GSZ-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 OP497GSZ-REEL meets industry standards.
7.What is the process for return or replacement of OP497GSZ-REEL?
All OP497GSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with OP497GSZ-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 OP497GSZ-REEL part is unused and in its original packaging.
Return procedure for OP497GSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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