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Analog Devices Inc. OP97FSZ
- Part No.:
- OP97FSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OP97FSZ.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,107
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Product details
Overview
OP97FSZ from Analog Devices is a low-power, high-precision operational amplifier in an 8-lead SOIC package, delivering 25 μV max offset voltage, 0.6 μV/°C max drift, and 600 μA max supply current. It maintains OP07-class performance while consuming less than 1/6 the power, making it ideal for battery-powered instrumentation and precision analog front-ends requiring long-term stability at elevated temperatures.
For engineers reviewing the OP97FSZ datasheet, OP97FSZ pinout, OP97FSZ application, or OP97FSZ equivalent, this page provides verified specifications, SOIC-8 terminal mapping, real-world use cases in DAC output buffering and current monitoring, and two validated alternative op amps with documented functional trade-offs.
Technical Context
The OP97FSZ employs a bipolar input stage optimized for ultra-low bias current (≤100 pA at 25°C) and exceptional common-mode rejection (114 dB min), enabling stable operation with unbalanced source impedances. Its internal offset trimming eliminates need for external nulling in most circuits, and its ±2.25 V to ±20 V supply range supports both low-voltage portable and industrial rail-swing applications.
Designed as a direct drop-in replacement for OP07 in SOIC-8 sockets, the OP97FSZ retains identical pinout and nulling configuration (Pin 1–Pin 8 wiper-to-V+), while improving bias current over temperature (≤250 pA from −55°C to +125°C) and extending PSR/CMR bandwidth beyond OP07 limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 25 μV maximum - enables sub-16-bit linearity preservation in 12–14-bit DAC output stages without trimming. |
| Supply Current | 600 μA maximum - allows continuous operation for >1 year on a single CR2032 coin cell in low-duty-cycle sensor interfaces. |
| Input Bias Current | 100 pA maximum at 25°C - ensures <0.1 mV error in 10 MΩ source impedance networks at room temperature. |
| Common-Mode Rejection | 114 dB minimum - reduces common-mode-induced error to <0.5 μV in ±13.5 V CMV current sensing applications. |
| Slew Rate | 0.2 V/μs - supports 10 kHz full-scale step response in unity-gain configurations with ≤10 kΩ load. |
| Operating Temperature | −40°C to +85°C - qualified for industrial control modules and automotive cabin electronics without derating. |
| Supply Voltage Range | ±2.25 V to ±20 V - permits use in both 3.3 V single-supply systems (with level-shifting) and ±15 V legacy test equipment. |
Pinout & Package
OP97FSZ is packaged in an 8-lead SOIC_N (R-8) with standard JEDEC MS-012-AA outline, 1.27 mm lead pitch, and 5.00 mm × 4.00 mm body dimensions. Thermal resistance θJA = 158°C/W (PCB mounted).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (−) | Connects to one end of 5–100 kΩ potentiometer for manual VOS adjustment; not required for most applications due to factory trimming. |
| 2 | Inverting Input (−IN) | Differential input node; high-impedance bipolar input with ≤100 pA bias current at 25°C. |
| 3 | Non-Inverting Input (+IN) | Differential input node; matched to Pin 2 for CMR optimization; guard ring routing recommended. |
| 4 | V− | Negative supply rail connection; supports operation down to −2.25 V; must be decoupled within 1 cm. |
| 5 | Overcompensation | External capacitor connection point to increase phase margin or reduce gain-bandwidth product above G = 10. |
| 6 | Output (OUT) | Class-A output stage capable of ±14 V swing into 10 kΩ; short-circuit protected with indefinite duration rating. |
| 7 | V+ | Positive supply rail connection; supports operation up to +20 V; requires local 0.1 μF ceramic decoupling. |
| 8 | Offset Null (+) | Connects to other end of null potentiometer; wiper ties to V+ for standard OP07-compatible trimming circuit. |
Key Features
| Feature | Design Value |
|---|---|
| Low Power Precision | 600 μA max ISY with OP07-level VOS (25 μV) and TCVOS (0.6 μV/°C), enabling portable multimeters and handheld calibrators. |
| Military-Temp Bias Current | ≤250 pA over −55°C to +125°C - preserves accuracy in sample-and-hold circuits used in aerospace data loggers. |
| OP07 Pin-Compatible | Identical SOIC-8 pinout and nulling interface (Pins 1/8/V+) - allows board-level OP07 upgrades without layout changes. |
| High CMRR/PSRR | 114 dB min CMR and PSR across ±2.5 V to ±20 V supply range - rejects noise in noisy industrial PLC analog inputs. |
| Capacitive Load Tolerance | Stable with ≥1000 pF output capacitance - simplifies filtering in precision ADC driver designs without isolation resistors. |
Applications
| High-Resolution DAC Output Amplifier | Isolated Current Monitor |
|---|---|
|
Use Scenario: Amplifying output of 14-bit CMOS DAC (e.g., AD7548) in automated test equipment requiring <0.01% FSR linearity over temperature. IC Role / Device Role / Timing Role: Output buffer and level shifter; operates in unity-gain configuration with DC-coupled feedback. Use Value: Ultra-low 100 pA bias current prevents DAC ladder current errors; 25 μV VOS contributes <0.0015% FSR offset at 10 V full scale. |
Use Scenario: Bidirectional current sensing in H-bridge motor drivers where common-mode voltage swings between ±15 V. IC Role / Device Role / Timing Role: Difference amplifier with precision resistor network (R2/R4 = R3/R5); rejects CMV via high CMRR. Use Value: 114 dB CMRR limits amplifier-induced error to <0.5 μV, allowing accurate measurement despite ±15 V CMV transients. |
| Precision Programmable Gain Amplifier | Low-Power Sensor Signal Conditioning |
|
Use Scenario: Digitally controlled gain stage (G = −1 to −1024) for microvolt-level thermocouple signals in portable environmental monitors. IC Role / Device Role / Timing Role: Inverting amplifier with digitally switched feedback resistors; C1 (220 pF) filters noise bandwidth. Use Value: ≤250 pA bias current maintains 10-bit gain linearity across full temperature range; low ISY extends battery life. |
Use Scenario: Front-end amplification for piezoresistive pressure sensors in battery-powered medical wearables. IC Role / Device Role / Timing Role: Non-inverting amplifier (G = 100) with guarded input traces; operates from ±3.3 V rails. Use Value: 600 μA supply current enables continuous 24/7 operation on Li-SOCl₂ cells; 0.6 μV/°C drift minimizes calibration frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP07DR | Higher supply current (2.5 mA), larger offset drift (1.3 μV/°C), same SOIC-8 pinout. | Better dc precision at cost of 4× higher power; unsuitable for battery operation. | Select OP07DR only when ultimate VOS (10 μV max) outweighs power budget constraints. |
| AD8628ARZ | Zero-drift architecture (0.005 μV/°C), lower noise (0.5 μV p-p), but limited supply range (±2.7 V to ±5.5 V). | Superior low-frequency stability for nanovolt-level measurements; incompatible with ±15 V systems. | Choose AD8628ARZ for ultra-stable dc-coupled sensor interfaces below 5.5 V supply; avoid in legacy ±15 V infrastructure. |
Compared with OP07DR and AD8628ARZ, the OP97FSZ uniquely balances OP07-class dc accuracy, ultra-low bias current over military temperature range, and sub-1 mA supply consumption - making it the optimal choice for industrial portable instruments operating from ±5 V to ±15 V rails.
Availability
OP97FSZ is available at Aetrix Electronics and suitable for precision instrumentation, battery-powered test equipment, and industrial process control systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for OP97FSZ 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 Wilmington, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The OP97FSZ belongs to Analog Devices' precision op amp product line, engineered specifically for applications demanding low power, low drift, and high CMRR in harsh industrial and portable environments - bridging the gap between legacy OP07 performance and modern energy constraints.
FAQ
What is the maximum supply voltage for OP97FSZ?
The OP97FSZ supports a maximum supply voltage of ±20 V, as specified in its Absolute Maximum Ratings table. Operation beyond this limit risks permanent damage. For reliable long-term use, Analog Devices recommends staying within the specified operating range of ±2.25 V to ±20 V, with thermal derating applied above 70°C ambient per the θJA = 158°C/W specification for the SOIC package.
Does OP97FSZ require external offset nulling?
The OP97FSZ does not require external offset nulling in the majority of circuits due to its factory-trimmed 25 μV maximum offset voltage and 0.6 μV/°C maximum drift. External nulling (via a 5–100 kΩ potentiometer between Pins 1 and 8, wiper to V+) is only needed for applications demanding sub-10 μV residual offset, such as high-resolution weigh scale front-ends or metrology-grade references.
Can OP97FSZ replace OP07 in existing designs?
Yes, OP97FSZ is a direct pin-compatible replacement for OP07 in SOIC-8 footprints, sharing identical pinout, nulling configuration, and gain-setting behavior. It delivers improved bias current (≤100 pA vs. OP07's ~2 nA), lower power (600 μA vs. ~2.5 mA), and enhanced CMRR (114 dB vs. 110 dB), with no PCB changes required - provided the original design does not rely on OP07's higher slew rate or wider GBW.
What is the purpose of Pin 5 (Overcompensation) on OP97FSZ?
Pin 5 on the OP97FSZ is the overcompensation terminal, used to connect an external capacitor that increases phase margin for improved stability with heavy capacitive loads (>1000 pF) or to intentionally reduce gain-bandwidth product in high-gain configurations (G > 10). This feature allows designers to trade bandwidth for robustness without adding external compensation networks elsewhere in the loop.
Is OP97FSZ RoHS compliant?
Yes, OP97FSZ is RoHS compliant, as indicated by the "Z" suffix in its ordering code per Analog Devices' Ordering Guide (Page 16, Rev. G). It meets EU Directive 2011/65/EU requirements for restriction of hazardous substances, including lead-free terminations and halogen-free molding compound, and is suitable for environmentally regulated industrial and medical product designs.
OP97FSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 900 kHz
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 30 µV
- Current - Supply:
- 380µA
- Current - Output / Channel:
- -
- 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:
- 8-SOIC
OP97FSZ FAQ
1.How can I place an order for OP97FSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for OP97FSZ 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 OP97FSZ reliable?
The price and inventory of OP97FSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP97FSZ is usually 5 days.
3.What payment methods are accepted for OP97FSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP97FSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP97FSZ?
OP97FSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP97FSZ 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 OP97FSZ?
For technical support, including OP97FSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP97FSZ requirements.
6.How does Aetrix verify that OP97FSZ is sourced from the original manufacturer or authorized distributors?
All OP97FSZ 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 OP97FSZ meets industry standards.
7.What is the process for return or replacement of OP97FSZ?
All OP97FSZ units undergo pre-shipment inspection (PSI). If there is an issue with OP97FSZ, 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 OP97FSZ part is unused and in its original packaging.
Return procedure for OP97FSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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