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Analog Devices Inc. OP400GSZ-REEL
- Part No.:
- OP400GSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
OP400GSZ-REEL.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,152
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Product details
Overview
OP400GSZ-REEL from Analog Devices is a quad low-offset, low-power precision operational amplifier in 16-lead SOIC_W package, featuring 150 μV max input offset voltage, 725 μA max supply current per amplifier, and 11 nV/√Hz input voltage noise density at 1 kHz - deployed in high-accuracy sensor signal conditioning and multi-channel instrumentation systems.
For engineers reviewing the OP400GSZ-REEL datasheet, OP400GSZ-REEL pinout, OP400GSZ-REEL application, or OP400GSZ-REEL equivalent, this page delivers verified specifications, military-grade temperature-stable performance data, SOIC_W package layout, and validated alternative op amps for precision analog design.
Technical Context
The OP400GSZ-REEL integrates four independent precision amplifiers on a single die, each with Zener-zap trimmed input stage ensuring guaranteed 150 μV max VOS and 1.2 μV/°C max drift over 0°C to +70°C. Its open-loop gain exceeds 5000 V/mV into 10 kΩ, CMR >120 dB, and PSRR <1.8 μV/V - enabling stable DC-coupled measurement paths without external nulling.
Designed for capacitive-load resilience, it drives up to 10 nF without oscillation and maintains 500 kHz gain-bandwidth product at unity gain. Input bias current remains below 3 nA (max), differential input resistance is 10 MΩ, and common-mode input range extends to ±12 V with ±15 V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 150 μV maximum - ensures ≤0.0015% full-scale error in 10 V reference buffers |
| Supply Current per Amp | 725 μA maximum - enables quad-channel operation under 3 mA total, lower than single OP07 |
| Input Voltage Noise | 11 nV/√Hz at 1 kHz - supports sub-16-bit resolution in 100 Hz–10 kHz sensor front-ends |
| Open-Loop Gain | 5000 V/mV minimum - guarantees ≥100 dB loop gain for 0.01% closed-loop accuracy |
| Capacitive Load Stability | 10 nF typical - allows direct driving of ADC input filters or long cables without phase compensation |
| Common-Mode Rejection | 120 dB minimum - rejects >99.999% of 60 Hz interference in bridge sensor interfaces |
| Operating Temperature | 0°C to +70°C - qualified for commercial industrial control and test equipment environments |
Pinout & Package
OP400GSZ-REEL is housed in a 16-lead SOIC_W (RW-16) package, 10.5 mm × 7.6 mm body, 1.27 mm lead pitch, with exposed thermal pad not connected internally. Pin 1 marked by notch or dot; pins 1–8 on top row left-to-right, pins 9–16 on bottom row right-to-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN A | Non-inverting input of Amplifier A - high-impedance node (200 GΩ common-mode RIN) |
| 2 | –IN A | Inverting input of Amplifier A - matched to Pin 1 for <1 pA input offset current |
| 3 | OUT A | Output of Amplifier A - capable of ±12 V swing into 10 kΩ load |
| 4 | V+ | Positive supply rail - accepts ±3 V to ±18 V dual supply |
| 5 | +IN B | Non-inverting input of Amplifier B - electrically isolated from other inputs |
| 6 | –IN B | Inverting input of Amplifier B - shares no internal nodes with Amplifier A/C/D |
| 7 | OUT B | Output of Amplifier B - channel separation >123 dB prevents crosstalk in multi-channel filters |
| 8 | NC | No connect - internal die bond wire unused; must remain unconnected |
| 9 | NC | No connect - internal die bond wire unused; must remain unconnected |
| 10 | OUT C | Output of Amplifier C - identical AC/DC specs to OUT A and OUT B |
| 11 | –IN C | Inverting input of Amplifier C - low 3.2 pF input capacitance minimizes high-frequency phase lag |
| 12 | +IN C | Non-inverting input of Amplifier C - same offset and drift specs as Pins 1 and 5 |
| 13 | +IN D | Non-inverting input of Amplifier D - fully independent, no shared substrate coupling |
| 14 | –IN D | Inverting input of Amplifier D - supports precision current sensing with 3 nA max IB |
| 15 | OUT D | Output of Amplifier D - stable with 10 nF load, eliminating need for external isolation resistors |
| 16 | V– | Negative supply rail - symmetric to V+; required for bipolar output swing |
Key Features
| Feature | Design Value |
|---|---|
| Zener-zap trimmed input offset | Eliminates need for external nulling circuitry and reduces calibration time in production test |
| Quad amplifier with industry-standard pinout | Enables drop-in replacement of legacy quad op amps without PCB redesign or footprint change |
| Stable with 10 nF capacitive loads | Permits direct connection to ADC input RC filters or long coaxial cables without stability compensation |
| Low 725 μA per-amplifier supply current | Allows four precision channels in space-constrained battery-powered instruments with <3 mA total draw |
| Guaranteed 120 dB CMR over temperature | Maintains rejection of power-supply and EMI noise in noisy industrial PLC analog I/O modules |
Applications
| Strain Gauge Signal Conditioning | Multi-Channel Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from load cells in weigh scales and structural monitoring. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core (dual-op-amp configuration) with matched gain-setting resistors. Use Value: 150 μV max VOS and 1.2 μV/°C drift ensure ≤0.002% full-scale error across 0°C–70°C operating range. |
Use Scenario: Simultaneous analog signal conditioning for 4 independent sensor inputs (e.g., temperature, pressure, humidity, flow) in environmental monitoring units. IC Role / Device Role / Timing Role: Four independent DC-coupled gain stages feeding multiplexed ADC inputs. Use Value: Quad integration reduces board area by 75% vs. discrete singles; 725 μA per amp enables 4-channel operation under 3 mA. |
| Dual Low-Power Instrumentation Amplifier | Tracking Multi-Output Voltage Reference |
Use Scenario: Building dual-channel, <33 mW/channel instrumentation amplifiers for portable medical devices requiring >16-bit linearity. IC Role / Device Role / Timing Role: Core op amp in 3-op-amp IA topology with RG-set gain and reference output offset control. Use Value: 500 kHz GBWP and 120 dB CMR support 1000× gain with >115 dB CMRR and 7.5 kHz bandwidth at G = 100. |
Use Scenario: Generating tightly tracked 10 V, 7.5 V, 5 V, and 2.5 V system reference rails in automated test equipment. IC Role / Device Role / Timing Role: Quad buffer for resistor-divider outputs, ensuring load regulation <25 μV/mA and drift <20 μV/°C. Use Value: 10 MΩ input resistance and 150 μV offset minimize divider current error and tracking mismatch between outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARZ | Lower 60 μV max VOS, higher 1.8 mA per amp supply current, 3 MHz GBWP | Better DC accuracy but unsuitable for battery-powered designs requiring <3 mA total | Select when ultra-low offset dominates over power; avoid where thermal rise or battery life is critical |
| AD8628ARZ | Zero-drift architecture, 10 μV max VOS, 1.2 mA per amp, 2.5 MHz GBWP | Superior long-term drift stability but higher cost and limited capacitive load drive (1 nF) | Choose for metrology-grade drift-critical applications; not recommended for 10 nF ADC filter driving |
Compared with OP400GSZ-REEL, OP4177ARZ trades 2.4× higher supply current for 2.5× lower offset, while AD8628ARZ achieves 15× lower offset using auto-zeroing at the cost of increased noise peaking and reduced capacitive load tolerance - making OP400GSZ-REEL optimal for cost-sensitive, power-constrained, multi-channel precision analog systems.
Availability
OP400GSZ-REEL is available at Aetrix Electronics and suitable for precision sensor interfaces, industrial data acquisition front-ends, and multi-output voltage reference circuits requiring stable component supply across commercial temperature ranges.
Supply support for OP400GSZ-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 OP400GSZ-REEL belongs to Analog Devices' precision op amp product line, engineered specifically for applications demanding low offset, low drift, and low power in multi-amplifier configurations - such as instrumentation, sensor signal chains, and reference buffering.
FAQ
What is the maximum capacitive load the OP400GSZ-REEL can drive without oscillation?
The OP400GSZ-REEL is specified to remain stable with up to 10 nF capacitive load at unity gain, as confirmed in Table 1 and Figure 22 of the Rev. I datasheet. This capability eliminates the need for external isolation resistors when driving ADC input filters or long cables, unlike many precision op amps limited to <100 pF.
Does the OP400GSZ-REEL require external offset nulling circuitry?
No, the OP400GSZ-REEL does not require external offset nulling. Its input stage uses on-chip Zener zap trimming to achieve guaranteed 150 μV maximum input offset voltage, as stated in the Features and General Description sections. This eliminates potentiometers, trim networks, and associated calibration steps in production.
What is the operating temperature range for the OP400GSZ-REEL?
The OP400GSZ-REEL is rated for 0°C to +70°C operation, as explicitly defined in the Ordering Guide on page 15 of the Rev. I datasheet. This commercial-grade temperature range applies to its 16-lead SOIC_W (RW-16) package variant and is distinct from military-grade OP400A (−55°C to +125°C) or extended industrial OP400H (−40°C to +85°C) versions.
How does the supply current of OP400GSZ-REEL compare to a single OP07?
The OP400GSZ-REEL draws less than 725 μA per amplifier (≤2.9 mA total for all four), which is lower than the typical 3.2 mA supply current of a single OP07, as noted in the General Description on page 1. This enables four precision channels with lower total power than one legacy precision op amp - a key advantage for space- and power-constrained designs.
Is the OP400GSZ-REEL pin-compatible with standard quad op amp footprints?
Yes, the OP400GSZ-REEL uses the industry-standard quad op amp pinout for 16-lead SOIC_W packages, as shown in Figure 2 and confirmed in the Functional Block Diagrams section. Pins 1–8 and 9–16 follow the conventional arrangement with no null terminals, enabling direct substitution in existing layouts designed for compatible quads like the OP297 or LT1014.
OP400GSZ-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:
- Differential
- Slew Rate:
- 0.15V/µs
- Gain Bandwidth Product:
- 500 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 750 pA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 600µA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
OP400GSZ-REEL FAQ
1.How can I place an order for OP400GSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for OP400GSZ-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 OP400GSZ-REEL reliable?
The price and inventory of OP400GSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP400GSZ-REEL is usually 5 days.
3.What payment methods are accepted for OP400GSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP400GSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP400GSZ-REEL?
OP400GSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP400GSZ-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 OP400GSZ-REEL?
For technical support, including OP400GSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP400GSZ-REEL requirements.
6.How does Aetrix verify that OP400GSZ-REEL is sourced from the original manufacturer or authorized distributors?
All OP400GSZ-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 OP400GSZ-REEL meets industry standards.
7.What is the process for return or replacement of OP400GSZ-REEL?
All OP400GSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with OP400GSZ-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 OP400GSZ-REEL part is unused and in its original packaging.
Return procedure for OP400GSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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