Analog Devices Inc. OP413FSZ
- Part No.:
- OP413FSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
OP413FSZ.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
OP413FSZ from Analog Devices is a quad, low-noise, low-drift, single-supply operational amplifier optimized for precision instrumentation in battery-powered and unipolar systems. It delivers 4.7 nV/√Hz voltage noise density at 1 kHz, 0.2 μV/°C max offset drift, and rail-to-rail output swing within 1 V of the positive rail and to ground - enabling high-resolution signal conditioning in 5 V or 12 V systems such as strain gage amplifiers and RTD transducer interfaces.
For engineers reviewing the OP413FSZ datasheet, OP413FSZ pinout, OP413FSZ application, or OP413FSZ equivalent, this page provides verified specifications, validated 16-lead SOIC_W package mapping, confirmed quad-channel pinout, real-world application circuits (e.g., load-cell scale amplifier, RTD linearizer), and two technically documented alternative op-amps with quantified performance trade-offs.
Technical Context
The OP413FSZ belongs to the OPx13 family designed specifically for internal-calibration systems where digital correction handles offset/gain but cannot compensate for temperature drift or broadband noise. Its patented bipolar-CMOS hybrid output stage enables true zero-volt output swing on single supplies while maintaining >100 dB CMRR over –40°C to +85°C.
It operates from 4 V to 36 V single supply or ±15 V dual supply, features unity-gain stability, 3.4 MHz gain-bandwidth product, and 1 V/μs slew rate. Input common-mode range extends from V– to within 1 V of V+, and phase reversal protection is built-in when inputs exceed supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 4.7 nV/√Hz @ 1 kHz - enables sub-μV resolution in sigma-delta ADC front-ends without degrading ENOB. |
| Offset Drift | 0.2 μV/°C (typ) - ensures <1 μV total drift over 0–70°C industrial range, critical for uncalibrated sensor nodes. |
| Input Range | V– to (V+ − 1 V) - supports direct interfacing to 0–5 V sensors without level-shifting circuitry. |
| Output Swing | 0 V to (V+ − 1 V) @ RL = 2 kΩ - maximizes dynamic range in 5 V systems, delivering >4 V p-p signal headroom. |
| GBW / Slew Rate | 3.4 MHz / 0.8 V/μs - supports stable closed-loop gain ≥100 up to ~30 kHz for anti-aliasing and active filtering. |
| CMRR | 97 dB min (−40°C to +85°C) - rejects power-supply ripple and shared-ground noise in multi-channel sensor arrays. |
| Supply Range | 4 V to 36 V single supply - compatible with Li-ion (3.7 V), 5 V logic, and 12 V industrial rails without regulation. |
Pinout & Package
OP413FSZ is housed in a 16-lead wide-body SOIC (SOIC_W) package per JEDEC MS-013AC, with θJA = 92°C/W and moisture sensitivity level (MSL) 3. Pin numbering follows standard top-view orientation with Pin 1 marked by notch or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives 600 Ω loads; swings rail-to-rail under specified conditions. |
| 2 | –IN A | Inverting input of Amp A - differential pair base node; accepts signals down to V–. |
| 3 | +IN A | Non-inverting input of Amp A - high-impedance node (IB = 600 nA max); referenced to V– in single-supply use. |
| 4 | V+ | Positive supply rail - connects to main system VCC (4–36 V); decoupling capacitor required. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from other channels; shares same input structure as Pin 3. |
| 6 | –IN B | Inverting input of Amp B - matched to Pin 2; used for differential sensing or feedback paths. |
| 7 | OUT B | Amplifier B output - identical performance to Pin 1; supports independent channel operation. |
| 8 | NC | No connect - internal die pad not bonded; must remain floating or grounded per layout guidelines. |
| 9 | NC | No connect - unused bond pad; no electrical function; avoid routing traces underneath. |
| 10 | OUT C | Amplifier C output - third independent channel; same AC/DC specs as Pins 1 and 7. |
| 11 | –IN C | Inverting input of Amp C - matches Pin 2/6; supports multi-channel synchronous acquisition. |
| 12 | +IN C | Non-inverting input of Amp C - identical bias and CMR behavior to Pins 3 and 5. |
| 13 | V– | Negative supply rail - tied to GND in single-supply mode; must be low-impedance return path. |
| 14 | +IN D | Non-inverting input of Amp D - fourth channel input; fully isolated from other amps. |
| 15 | –IN D | Inverting input of Amp D - supports independent feedback networks per channel. |
| 16 | OUT D | Amplifier D output - completes quad configuration; all four outputs drive 600 Ω loads simultaneously. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Swings to ground (V–) and within 1 V of V+ - eliminates need for negative supply in 5 V sensor interfaces. |
| Bipolar-CMOS hybrid output | Combines bipolar linearity with CMOS near-zero crossover distortion - preserves THD+N < 0.001% at 1 kHz. |
| Phase reversal protection | Prevents output inversion when inputs exceed V– or V+ - avoids latch-up in overvoltage transients. |
| Low long-term drift | 150 μV max 1000-hour life test drift at 125°C - ensures calibration stability over 10+ year deployments. |
| Single-supply optimized input range | V– to (V+ − 1 V) - exceeds competitive parts by ≥0.5 V, enabling direct connection to 0–5 V bridge outputs. |
Applications
| Digital Scale Amplifier | Strain Gage Signal Conditioning |
|---|---|
|
Use Scenario: High-precision weighing system using 350 Ω full-bridge load cell with 10 mV/V sensitivity, powered from 5 V battery. IC Role / Device Role / Timing Role: Quad amplifier configures one channel as stable 4 V bridge excitation source and three others as differential gain/offset stages. Use Value: 4.7 nV/√Hz noise enables <10 mg resolution at 1 kg full scale; 0.2 μV/°C drift limits thermal error to <0.05% FS over operating range. |
Use Scenario: Portable structural health monitor measuring microstrain on composite aircraft panels using foil gages. IC Role / Device Role / Timing Role: Single-channel instrumentation amplifier (using two OP413FSZ sections) with 100× gain and 0.1 Hz–10 kHz bandwidth. Use Value: Rail-to-rail output delivers full 4.5 V p-p swing into 2 kΩ ADC driver; CMRR >97 dB rejects EMI from nearby avionics buses. |
| RTD Thermometer Front-End | Thermocouple Cold-Junction Compensator |
|
Use Scenario: Industrial oven controller using Pt100 RTD with linearized 0–500°C range and ±0.5°C accuracy requirement. IC Role / Device Role / Timing Role: Two OP413FSZ amplifiers implement servo-balanced 3-wire RTD bridge with active linearization feedback. Use Value: 120 nV p-p 0.1–10 Hz noise ensures <0.01°C RMS thermal noise floor; 0.2 μV/°C drift contributes <0.02°C error over 500°C span. |
Use Scenario: K-type thermocouple measurement in HVAC control panel with single 12 V supply and ambient temperature compensation. IC Role / Device Role / Timing Role: One OP413FSZ section amplifies thermocouple EMF (40.7 μV/°C), another conditions silicon diode cold-junction sensor. Use Value: 4.7 nV/√Hz noise enables 0.02°C resolution; rail-to-rail output drives 0–10 V ADC input directly without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8628ARZ | Chopper-stabilized (0.1 μV/°C drift), lower noise (1.5 nV/√Hz), but 2.5 MHz GBW and 1.5 V/μs slew rate; requires external capacitors for stability. | Superior DC accuracy for ultra-low-drift lab equipment; unsuitable for >100 kHz closed-loop bandwidths due to chopper ripple. | Select AD8628ARZ only when drift <0.1 μV/°C is mandatory and bandwidth ≤50 kHz suffices. |
| OPA2188AIDR | Zero-drift architecture (0.003 μV/°C), 8.8 nV/√Hz noise, 2 MHz GBW, rail-to-rail I/O, but higher quiescent current (1 mA/ch). | Better long-term stability for calibration-critical metrology; higher noise limits resolution in low-level sensor apps like microvolt strain gages. | Choose OPA2188AIDR for systems requiring decades-long calibration hold, accepting 80% higher noise and 3× supply current. |
Compared with OP413FSZ, AD8628ARZ offers lower drift and noise but sacrifices bandwidth and adds complexity; OPA2188AIDR achieves near-zero drift at the cost of higher noise and current - making OP413FSZ the optimal balance for high-fidelity, wide-bandwidth, single-supply instrumentation.
Availability
OP413FSZ is available at Aetrix Electronics and suitable for digital scales, strain gage interfaces, RTD thermometers, and thermocouple amplifiers requiring stable component supply across industrial temperature ranges (–40°C to +85°C) and long-lifecycle production programs.
Supply support for OP413FSZ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets since 1965.
The OPx13 family - including OP413FSZ - was engineered for processor-based systems with internal calibration, prioritizing low noise and ultra-low drift to complement digital correction algorithms in unipolar supply environments.
FAQ
What is the maximum supply voltage for OP413FSZ?
The OP413FSZ supports a single-supply range of 4 V to 36 V or dual-supply operation up to ±18 V. Absolute maximum ratings specify ±18 V on both V+ and V– pins. Exceeding this may cause permanent damage. Operation at 36 V single supply is validated per datasheet Table 3 and Figure 15, with output swing and PSRR maintained across the full range.
Does OP413FSZ require external offset nulling components?
No, OP413FSZ does not include offset null pins and is not designed for external trimming. Unlike the OP113 (which has Pins 1 and 5 for null adjustment), the OP413FSZ relies on its guaranteed 125 μV max initial offset and 0.2 μV/°C drift to meet precision requirements without user calibration. External trimming is neither supported nor recommended.
Can OP413FSZ drive a 600 Ω load across the full temperature range?
Yes, OP413FSZ is fully specified driving 600 Ω loads from –40°C to +85°C. Per datasheet Table 1 and Figure 15, output swing remains ≥3.9 V high and ≤8 mV low at 5 V supply, and ≥±13.9 V at ±15 V supply. Short-circuit current is ±30 mA, ensuring robustness under transient overload.
Is OP413FSZ pin-compatible with other OPx13 family members?
No, OP413FSZ is not pin-compatible with OP113 or OP213. It uses a 16-lead SOIC_W package (Pins 1–16), whereas OP113 is 8-lead PDIP/SOIC_N and OP213 is 8-lead SOIC_N. The pin count, layout, and channel count differ fundamentally - OP413FSZ integrates four independent amplifiers versus one or two in the others.
What is the typical 0.1 Hz to 10 Hz noise for OP413FSZ?
The OP413FSZ exhibits 120 nV p-p integrated noise from 0.1 Hz to 10 Hz, as confirmed in datasheet Tables 1 and 2 and Figure 24. This ultra-low flicker noise supports high-resolution DC measurements in weigh scales and precision thermometry where low-frequency stability is critical.
OP413FSZ 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:
- Rail-to-Rail
- Slew Rate:
- 1.2V/µs
- Gain Bandwidth Product:
- 3.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 600 nA
- Voltage - Input Offset:
- 275 µV
- Current - Supply:
- -
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
OP413FSZ FAQ
1.How can I place an order for OP413FSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for OP413FSZ 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 OP413FSZ reliable?
The price and inventory of OP413FSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP413FSZ is usually 5 days.
3.What payment methods are accepted for OP413FSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP413FSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP413FSZ?
OP413FSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP413FSZ 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 OP413FSZ?
For technical support, including OP413FSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP413FSZ requirements.
6.How does Aetrix verify that OP413FSZ is sourced from the original manufacturer or authorized distributors?
All OP413FSZ 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 OP413FSZ meets industry standards.
7.What is the process for return or replacement of OP413FSZ?
All OP413FSZ units undergo pre-shipment inspection (PSI). If there is an issue with OP413FSZ, 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 OP413FSZ part is unused and in its original packaging.
Return procedure for OP413FSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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