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Analog Devices Inc. OP113ESZ-REEL7
- Part No.:
- OP113ESZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OP113ESZ-REEL7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,081
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Product details
Overview
OP113ESZ-REEL7 from Analog Devices is a precision single-supply operational amplifier optimized for low-noise, low-drift analog signal conditioning in battery-powered and internally calibrated systems. It delivers 4.7 nV/√Hz voltage noise density at 1 kHz, 0.2 μV/°C max offset drift, and 3.4 MHz gain bandwidth - enabling high-resolution strain gage, RTD, and thermocouple amplification with 5 V or ±15 V operation.
For engineers reviewing the OP113ESZ-REEL7 datasheet, OP113ESZ-REEL7 pinout, OP113ESZ-REEL7 application, or OP113ESZ-REEL7 equivalent, this page provides verified specifications, SOIC_N package details, real-world use cases in digital scales and temperature transducer circuits, and validated alternative options for precision analog design.
Technical Context
The OP113ESZ-REEL7 employs a patented bipolar-CMOS hybrid output stage enabling rail-to-rail swing to within ~200 μV of ground and to within 1 V of V+, critical for maximizing dynamic range in 5 V single-supply systems. Its input common-mode range extends from V− to (V+ − 1 V) across full supply (4 V to 36 V), exceeding competitive parts by up to 5 V.
Designed for processor-based systems with internal calibration, it maintains ultra-low drift (0.2 μV/°C typ) and low 0.1 Hz–10 Hz noise (120 nV p-p) - parameters uncorrectable by digital calibration - while supporting unity-gain stability and phase reversal protection when inputs exceed rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 4.7 nV/√Hz @ 1 kHz - enables resolution beyond 20-bit ADCs in sigma-delta systems |
| Offset Drift | 0.2 μV/°C typ - ensures <±1 μV total drift over −40°C to +85°C, eliminating need for system-level thermal recalibration |
| Gain Bandwidth | 3.4 MHz - supports stable closed-loop gain ≥10 at 300 kHz for anti-aliasing filter interfaces |
| Output Swing | Within 1 V of V+ and within 200 μV of V− @ 5 V supply - maximizes usable signal headroom in low-voltage instrumentation |
| Input Range | V− to (V+ − 1 V) - accepts signals down to ground in single-supply mode, simplifying sensor biasing |
| CMRR | 93 dB min @ 0–4 V common-mode - preserves accuracy in bridge amplifier configurations with varying excitation |
| Slew Rate | 0.8 V/μs min - handles 10 V step responses in <13 μs, suitable for fast-settling load-cell readouts |
Pinout & Package
OP113ESZ-REEL7 is housed in an 8-lead narrow-body SOIC_N (SOIC-8) package, RoHS-compliant and tape-and-reel packaged per REEL7 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Null (Offset Adjust) | Connects to wiper of 10 kΩ potentiometer for external offset trim; enables ±2 mV adjustment range |
| 2 | Inverting Input (−IN A) | Differential input node; supports common-mode range from V− to (V+ − 1 V) |
| 3 | Non-Inverting Input (+IN A) | Differential input node; same CMR as Pin 2; used for reference or sensor connection |
| 4 | Negative Supply (V−) | Ground reference in single-supply mode; must be connected to system GND or negative rail |
| 5 | Null (Offset Adjust) | Connects to one end of 10 kΩ potentiometer; other end ties to V− for balanced trim |
| 6 | Output (OUT A) | Class-AB output stage with rail-to-rail capability; drives 600 Ω loads with <1 V saturation |
| 7 | Positive Supply (V+) | Accepts 4 V to 36 V single supply or ±18 V dual supply; PSRR >100 dB up to 100 Hz |
| 8 | No Connect (NC) | Internally unused; must remain floating - no external connection permitted |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Reaches within 200 μV of V− and within 1 V of V+ at 5 V supply - maximizes ADC utilization in portable instruments |
| Phase reversal protection | Prevents output inversion when input exceeds supply rails - eliminates latch-up risk in overvoltage sensor fault conditions |
| Low 0.1–10 Hz noise | 120 nV p-p - critical for DC-coupled strain gage and RTD amplifiers where 1/f noise dominates error budget |
| Unity-gain stable | Operates without external compensation at gain = 1 - simplifies design of buffer stages and active filters |
| Extended industrial temp range | Specified from −40°C to +85°C - qualified for deployment in factory automation and outdoor environmental sensors |
Applications
| Digital Scale Amplifier | Strain Gage Interface |
|---|---|
Use Scenario: Amplifying millivolt-level output from load-cell bridges in commercial weighing equipment operating from 5 V battery or USB power. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier providing differential gain, offset nulling, and low-noise buffering before 24-bit sigma-delta ADC. Use Value: 4.7 nV/√Hz noise and 0.2 μV/°C drift enable <0.01% linearity error over temperature without recalibration. |
Use Scenario: Conditioning Wheatstone bridge outputs from metallic foil strain gages in structural health monitoring sensors. IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier front-end with rail-to-rail output driving precision ADC reference buffers. Use Value: Input range to V− and output swing to within 200 μV of ground allow true-zero bridge output amplification at 5 V. |
| RTD Thermometer | Thermocouple Cold-Junction Compensator |
Use Scenario: Linearizing Pt100 RTD resistance changes into precise 10 mV/°C analog output for industrial temperature controllers. IC Role / Device Role / Timing Role: Dual-op-amp servo loop amplifier implementing zero-suppression and positive feedback linearization. Use Value: Low drift ensures ±0.5°C accuracy from −150°C to +500°C without software correction tables. |
Use Scenario: Amplifying microvolt-level K-type thermocouple outputs while compensating for cold-junction temperature using silicon diode sensing. IC Role / Device Role / Timing Role: High-common-mode-rejection (93 dB) differential amplifier rejecting PCB thermal gradients near junctions. Use Value: 0.02°C resolution achieved via 4.7 nV/√Hz noise floor and stable 0.2 μV/°C offset drift over ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8628ARZ | Chopper-stabilized architecture; 0.1 μV/°C max drift vs. OP113ESZ-REEL7's 0.2 μV/°C; higher 1/f noise (0.25 μV p-p) but lower broadband noise (1.1 nV/√Hz). | Better for ultra-low-drift DC applications; unsuitable for audio or wideband sensor signals due to chopper ripple. | Select AD8628ARZ only when sub-μV total drift is mandatory and bandwidth <10 kHz suffices. |
| OPA333AIDBVR | Zero-drift auto-zero topology; 0.1 μV/°C max drift; rail-to-rail I/O; 350 kHz GBW vs. OP113ESZ-REEL7's 3.4 MHz. | Preferred for low-power (<20 μA), low-bandwidth sensor nodes; lacks phase reversal protection and high-speed settling. | Choose OPA333AIDBVR for battery life-critical designs below 100 kHz; retain OP113ESZ-REEL7 for >300 kHz bandwidth needs. |
Compared with AD8628ARZ and OPA333AIDBVR, OP113ESZ-REEL7 uniquely balances 3.4 MHz bandwidth, 4.7 nV/√Hz noise, and robust phase reversal immunity - making it optimal for high-fidelity, wideband precision instrumentation where chopper artifacts or limited speed are unacceptable.
Availability
OP113ESZ-REEL7 is available at Aetrix Electronics and suitable for digital scale electronics, battery-powered instrumentation, and temperature transducer amplifier designs requiring stable component supply and long-term parametric consistency.
Supply support for OP113ESZ-REEL7 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.
The OPx13 family - including OP113ESZ-REEL7 - was engineered specifically for single-supply, internally calibrated measurement systems where low drift and low noise cannot be digitally corrected, targeting industrial sensing, test equipment, and precision medical instrumentation.
FAQ
What is the maximum supply voltage for OP113ESZ-REEL7?
The absolute maximum supply voltage for OP113ESZ-REEL7 is ±18 V for dual supplies or 36 V for single supply, as specified in Table 3 of the Rev. F datasheet. Continuous operation above ±15 V or 30 V requires derating per thermal resistance data (θJA = 158°C/W for SOIC_N); sustained use at 36 V is not recommended without heatsinking or airflow.
Does OP113ESZ-REEL7 support true rail-to-rail input?
OP113ESZ-REEL7 does not support rail-to-rail input - its input common-mode range extends from V− to (V+ − 1 V) across the full supply range. This allows operation down to ground in single-supply mode but excludes the top 1 V near V+, unlike true RRI op amps. This design prioritizes low noise and precision over full rail access.
Can OP113ESZ-REEL7 drive 600 Ω loads effectively?
Yes - OP113ESZ-REEL7 is fully specified driving 600 Ω loads: output swing is guaranteed to ±14.5 V (at ±15 V supply) and 3.9 V/8 mV (at 5 V supply), with short-circuit current limit of ±40 mA (dual) or ±30 mA (single). Its output stage sustains linearity and low distortion into 600 Ω, matching legacy op amp interface requirements.
Is external offset adjustment necessary for OP113ESZ-REEL7?
No - external offset adjustment is optional. The OP113ESZ-REEL7 has a typical input offset voltage of 75 μV (E grade) or 125 μV (F grade) at 25°C, and guaranteed max of 225 μV over temperature. Trim is only needed if system-level accuracy demands sub-100 μV residual offset; most applications operate without adjustment.
What is the operating temperature range of OP113ESZ-REEL7?
OP113ESZ-REEL7 is rated for the extended industrial temperature range of −40°C to +85°C, as confirmed in the Absolute Maximum Ratings table and Electrical Characteristics sections of Rev. F. All key specs - including offset drift, CMRR, and output swing - are guaranteed across this full range.
OP113ESZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1.2V/µs
- Gain Bandwidth Product:
- 3.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 240 nA
- Voltage - Input Offset:
- 75 µV
- Current - Supply:
- 3mA
- 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:
- 8-SOIC
OP113ESZ-REEL7 FAQ
1.How can I place an order for OP113ESZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for OP113ESZ-REEL7 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 OP113ESZ-REEL7 reliable?
The price and inventory of OP113ESZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP113ESZ-REEL7 is usually 5 days.
3.What payment methods are accepted for OP113ESZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP113ESZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP113ESZ-REEL7?
OP113ESZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP113ESZ-REEL7 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 OP113ESZ-REEL7?
For technical support, including OP113ESZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP113ESZ-REEL7 requirements.
6.How does Aetrix verify that OP113ESZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All OP113ESZ-REEL7 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 OP113ESZ-REEL7 meets industry standards.
7.What is the process for return or replacement of OP113ESZ-REEL7?
All OP113ESZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with OP113ESZ-REEL7, 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 OP113ESZ-REEL7 part is unused and in its original packaging.
Return procedure for OP113ESZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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