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Analog Devices Inc. OP213ESZ
- Part No.:
- OP213ESZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OP213ESZ.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:838
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Product details
Overview
OP213ESZ from Analog Devices is a dual-channel, low-noise, low-drift, single-supply operational amplifier optimized for precision 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 and RTD amplifier designs operating from 5 V or ±15 V supplies.
For engineers reviewing the OP213ESZ datasheet, OP213ESZ pinout, OP213ESZ application, or OP213ESZ equivalent, this page provides verified specifications, SOIC_N package details, real-world use cases in load-cell scales and thermocouple interfaces, and validated alternative parts with documented functional differences.
Technical Context
The OP213ESZ belongs to the OPx13 family designed specifically for unipolar supply operation (4 V to 36 V) while maintaining precision dc performance-unlike legacy bipolar op amps that degrade under single-supply conditions. Its patented hybrid bipolar-CMOS output stage enables rail-to-rail negative swing (to within ~8 mV of V− at 5 V) and input common-mode range extending to the negative rail and within 1 V of V+ across full supply range.
It features unity-gain stability, no phase reversal when inputs stay within supply rails, and guaranteed 0.2 μV/°C offset drift (F grade). Noise performance is characterized over 0.1 Hz–10 Hz (120 nV p-p) and at 1 kHz (4.7 nV/√Hz), making it suitable for sigma-delta ADC front-ends where noise directly limits effective resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 4.7 nV/√Hz @ 1 kHz - enables >20-bit effective resolution in sigma-delta ADC systems without external filtering |
| Offset Drift | 0.2 μV/°C (typ) - ensures <1 μV total drift over 0°C–70°C, critical for uncalibrated industrial temperature sensors |
| Gain Bandwidth | 3.4 MHz - supports stable closed-loop gain ≥10 up to ~300 kHz, sufficient for anti-aliasing and sensor excitation |
| Input Range | VCM = V− to (V+ − 1 V) - allows direct interfacing to ground-referenced bridges and transducers without level-shifting |
| Output Swing | VOL = 8 mV @ RL = 600 Ω, 5 V supply - achieves true zero-output capability for single-supply instrumentation amplifiers |
| Supply Range | ±15 V or +5 V (single) - operates identically across dual- and single-supply configurations, simplifying BOM consolidation |
| Channel Separation | 105 dB @ 1 kHz - prevents crosstalk in dual-channel applications like differential bridge readouts |
Pinout & Package
OP213ESZ is housed in an 8-lead narrow-body SOIC_N (SO-8) package with standard pinout and no internal connections on pins 1 and 5 (NULL). The device uses a dual-amplifier topology with independent input and output terminals per channel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | No internal connection; electrically isolated, may be left floating or grounded for mechanical stability |
| 2 | –IN A | Inverting input of Channel A - accepts differential or single-ended signals with full rail-to-rail common-mode range |
| 3 | +IN A | Non-inverting input of Channel A - used for reference biasing or direct sensor connection in instrumentation topologies |
| 4 | V− | Negative supply rail - serves as circuit ground in single-supply mode; output swings to within 8 mV of this pin |
| 5 | NULL | No internal connection; not bonded, must not be used for signal routing or thermal relief |
| 6 | OUT A | Amplified output of Channel A - drives 600 Ω loads with 3.9 V swing at 5 V supply |
| 7 | OUT B | Amplified output of Channel B - independently buffered; enables dual-path signal conditioning without inter-channel coupling |
| 8 | V+ | Positive supply rail - supports 4 V to 36 V operation; PSRR >100 dB ensures immunity to supply ripple |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail negative output swing | Swings to within 8 mV of V− at 5 V supply - eliminates need for negative rail in portable strain gage amplifiers |
| No phase reversal | Guaranteed when inputs remain within supply rails - prevents latch-up and erroneous outputs during overvoltage transients |
| Low 1/f noise | 120 nV p-p (0.1 Hz–10 Hz) - preserves accuracy in slow-sampling digital scales and temperature loggers |
| Unity-gain stable | Stable at AV = 1 with capacitive loads ≤100 pF - simplifies design of buffer stages and active filters |
| Extended industrial temp range | –40°C to +85°C operation - qualified for deployment in factory automation and outdoor instrumentation |
Applications
| Digital Load-Cell Scale | Single-Supply Strain Gage Amplifier |
|---|---|
Use Scenario: Precision weighing system using a 350 Ω Wheatstone bridge with 100 mV full-scale output, powered by 5 V battery. IC Role / Device Role / Timing Role: Dual-channel amplifier: one half generates stable 10 V excitation; the other performs differential gain and offset correction. Use Value: 4.7 nV/√Hz noise and 0.2 μV/°C drift enable sub-gram resolution and <0.01% linearity error over temperature without recalibration. |
Use Scenario: Portable structural health monitor measuring microstrain on composite materials using 350 Ω foil gages, powered by 5 V Li-ion. IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier front-end with true-zero output, eliminating need for charge pumps or split rails. Use Value: Output swing to 8 mV above V− allows full 0–3.5 V dynamic range from 5 V supply, maximizing ADC utilization and SNR. |
| High-Accuracy RTD Thermometer | K-Type Thermocouple Interface |
Use Scenario: Industrial furnace controller measuring Pt100 RTD over –150°C to +500°C with linearized 10 mV/°C output. IC Role / Device Role / Timing Role: Dual-op-amp servo loop: one channel nulls bridge common-mode voltage; the other applies precision positive feedback for linearization. Use Value: Guaranteed 0.2 μV/°C drift contributes <±0.1°C error over full range, meeting Class A RTD accuracy requirements. |
Use Scenario: Data acquisition module reading K-type thermocouples (40.7 µV/°C) from 0°C to 1000°C using cold-junction compensation with silicon diode. IC Role / Device Role / Timing Role: Low-noise gain stage amplifying µV-level thermocouple EMF while rejecting EMI from heater switching. Use Value: 4.7 nV/√Hz noise translates to <0.02°C RMS resolution at 1000°C, exceeding ASTM E230 thermocouple class limits. |
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 | Zero-drift auto-zero architecture; 0.005 μV/°C drift vs. OP213ESZ's 0.2 μV/°C; higher 1/f noise (0.12 µV p-p) | Better long-term drift stability but higher chopper-induced ripple; unsuitable for low-frequency DC-coupled bridges | Choose AD8628ARZ only when ultra-low drift dominates over broadband noise and ripple sensitivity. |
| OPA2188AIDR | Zero-drift, 850 kHz GBW, 0.003 μV/°C drift; lower noise (5.6 nV/√Hz) but slower slew rate (0.8 V/μs) | Superior drift spec but insufficient bandwidth for fast-settling 24-bit sigma-delta ADC drivers (>1 MHz needed) | Choose OPA2188AIDR for high-precision DC measurements; OP213ESZ preferred for wideband sensor signal chains. |
Compared with AD8628ARZ and OPA2188AIDR, OP213ESZ offers the optimal balance of low broadband noise, adequate bandwidth, and proven rail-to-rail output behavior in single-supply instrumentation-making it uniquely suited for strain gage and RTD applications where both noise and output headroom are simultaneously constrained.
Availability
OP213ESZ is available at Aetrix Electronics and suitable for digital load-cell scales, single-supply strain gage interfaces, and high-accuracy RTD thermometer designs requiring stable component supply and long-term calibration integrity.
Supply support for OP213ESZ 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, with decades of expertise in precision amplification and sensor interface ICs.
The OPx13 family-including OP213ESZ-was engineered specifically for internally calibrated, processor-based instrumentation systems requiring low noise, low drift, and robust single-supply operation from 4 V to 36 V.
FAQ
What is the maximum supply voltage for OP213ESZ?
The absolute maximum supply voltage for OP213ESZ is ±18 V, with recommended operating range from ±4 V to ±15 V (dual) or +4 V to +36 V (single). Operation at ±15 V or +5 V is fully characterized per datasheet Table 1 and Table 2, ensuring specified noise, drift, and output swing performance.
Does OP213ESZ support true rail-to-rail output?
OP213ESZ supports rail-to-rail swing on the negative side (to within 8 mV of V− at 5 V), but its positive output swing is limited to within 1 V of V+. This asymmetric output architecture enables true-zero operation in single-supply systems while maintaining bipolar-stage linearity and speed-distinct from full rail-to-rail op amps.
Can OP213ESZ drive a 600 Ω load at 5 V supply?
Yes, OP213ESZ is fully specified driving 600 Ω loads at 5 V supply: VOH = 3.9 V and VOL = 8 mV (both at TA = –40°C to +85°C). Its output stage sources/sinks ±30 mA short-circuit current, ensuring stable operation into low-impedance ADC drivers or cable-driven outputs.
Is OP213ESZ pin-compatible with OP213?
Yes, OP213ESZ is the SOIC_N packaged version of the OP213 device and shares identical pinout, electrical specifications, and thermal characteristics with the base OP213 part. The "ESZ" suffix denotes the 8-lead narrow-body SOIC package per Analog Devices' ordering guide.
What is the typical 0.1 Hz to 10 Hz noise for OP213ESZ?
The typical peak-to-peak voltage noise of OP213ESZ from 0.1 Hz to 10 Hz is 120 nV p-p, measured under standard conditions (VS = ±15 V, TA = 25°C). This low 1/f noise is critical for high-resolution DC measurements in digital scales and temperature transducer amplifiers.
OP213ESZ 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:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.2V/µs
- Gain Bandwidth Product:
- 3.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 240 nA
- Voltage - Input Offset:
- 100 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:
- 8-SOIC
OP213ESZ FAQ
1.How can I place an order for OP213ESZ through Aetrix?
Please submit a Request for Quotation (RFQ) for OP213ESZ 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 OP213ESZ reliable?
The price and inventory of OP213ESZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP213ESZ is usually 5 days.
3.What payment methods are accepted for OP213ESZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP213ESZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP213ESZ?
OP213ESZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP213ESZ 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 OP213ESZ?
For technical support, including OP213ESZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP213ESZ requirements.
6.How does Aetrix verify that OP213ESZ is sourced from the original manufacturer or authorized distributors?
All OP213ESZ 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 OP213ESZ meets industry standards.
7.What is the process for return or replacement of OP213ESZ?
All OP213ESZ units undergo pre-shipment inspection (PSI). If there is an issue with OP213ESZ, 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 OP213ESZ part is unused and in its original packaging.
Return procedure for OP213ESZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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