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Analog Devices Inc. OP213EP
- Part No.:
- OP213EP
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
OP213EP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,733
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Product details
Overview
OP213EP from Analog Devices is a dual-channel, low-noise, low-drift, single-supply operational amplifier in an 8-lead plastic DIP package. It delivers 4.7 nV/√Hz voltage noise density at 1 kHz, 3.4 MHz gain bandwidth, 0.2 mV/°C max offset drift, ±30 mA output drive, and rail-to-rail input common-mode range (to within 1 V of V+) - enabling high-precision signal conditioning in battery-powered instrumentation and strain-gage interfaces.
For engineers reviewing the OP213EP datasheet, OP213EP pinout, OP213EP application, or OP213EP equivalent, key selection criteria include its guaranteed 150 µV max input offset voltage over –40°C to +85°C, unity-gain stability with no phase reversal, 1.2 V/µs slew rate, and compatibility with 4 V to 36 V single supplies - critical for low-voltage sensor front-ends requiring long-term dc accuracy and minimal thermal error.
Technical Context
The OP213EP implements a proprietary bipolar-CMOS hybrid output stage that enables output swing to within hundreds of microvolts of ground under single-supply operation - a key differentiator versus conventional bipolar op amps limited to ~10 mV above V–. Its PNP input stage supports true zero-input common-mode operation, essential for bridge sensor amplification where one input may sit at ground.
Designed for systems with internal digital calibration, the OP213EP maintains precision performance across supply voltages (4 V to 36 V) and temperature (–40°C to +85°C), with guaranteed offset drift ≤0.2 mV/°C and 0.1 Hz–10 Hz noise of 120 nV p-p - allowing processor-based correction of gain/offset while preserving uncorrectable analog fidelity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 150 µV max over –40°C to +85°C - ensures <±0.5 mV total dc error in 100× gain strain-gage amplifiers without trimming. |
| Voltage Noise Density | 4.7 nV/√Hz @ 1 kHz - enables resolution of sub-µV signals in 24-bit ADC front-ends with >110 dB SNR. |
| Gain Bandwidth Product | 3.4 MHz - supports stable closed-loop gains up to 100× at 34 kHz for anti-aliasing filter design. |
| Slew Rate | 1.2 V/µs - allows full-scale 5 V step response in <4.2 µs, suitable for fast-settling sensor readouts. |
| Input Common-Mode Range | 0 V to (V+ – 1 V) - accommodates grounded-sensor configurations (e.g., load-cell bridges) without level-shifting. |
| Output Swing (RL = 600 Ω) | 0.008 V to 3.9 V @ 5 V supply - delivers >78% of rail-to-rail dynamic range for maximum signal utilization. |
| Offset Drift | 0.2 mV/°C max - limits temperature-induced error to <17 mV over 85°C ambient range in uncalibrated systems. |
Pinout & Package
OP213EP is housed in an 8-lead plastic DIP (N-8) package with 0.3-inch body width and through-hole mounting. Pin 1 is top-left corner when notch faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (A) | Connects to wiper of 10 kΩ potentiometer for external offset trim of Channel A; not required for standard operation. |
| 2 | Inverting Input (A) | High-impedance PNP input node; accepts signals from 0 V to (V+ – 1 V) with no phase reversal. |
| 3 | Non-Inverting Input (A) | High-impedance PNP input node; supports true ground-referenced differential sensing. |
| 4 | Negative Supply (V–) | Ground reference for single-supply operation; output swings to within 8 mV of this pin. |
| 5 | Offset Null (B) | Connects to wiper of second 10 kΩ potentiometer for external offset trim of Channel B. |
| 6 | Output (B) | Class-AB output stage capable of sourcing/sinking ±30 mA into 600 Ω loads. |
| 7 | Inverting Input (B) | Independent high-impedance input for second channel; identical specs to Pin 2. |
| 8 | Positive Supply (V+) | Accepts 4 V to 36 V single supply; regulates internal bias for rail-to-rail input/output operation. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on input overvoltage | Prevents catastrophic output latch-up when inputs exceed V– by >2 mA, eliminating need for external clamping diodes in bridge circuits. |
| Unity-gain stable | Enables direct use in voltage follower, active filter, and buffer configurations without external compensation components. |
| Low 1/f noise (120 nV p-p, 0.1–10 Hz) | Reduces baseline wander in DC-coupled thermocouple and RTD amplifiers, improving long-term measurement repeatability. |
| Guaranteed ESD protection (4 kV HBM) | Allows safe handling during PCB assembly without special grounding protocols, reducing manufacturing yield loss. |
| Single-supply optimized output stage | Delivers 3.9 V output swing on 5 V supply - 200 mV higher than legacy bipolar op amps - increasing usable ADC input range. |
Applications
| Digital Scales | Multimedia Audio Interfaces |
|---|---|
Use Scenario: Amplifying millivolt-level outputs from 350 Ω load cells in industrial weighing platforms powered by 5 V batteries. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: Channel A generates stable 4.000 V bridge excitation; Channel B provides differential gain with CMRR optimization via R4 trim. Use Value: 4.7 nV/√Hz noise enables 20-bit effective resolution; 0.2 mV/°C drift prevents >100 g error over 85°C ambient swing in unheated enclosures. | Use Scenario: Driving 18-bit stereo DAC (AD1868) outputs in PC multimedia sound cards operating from 5 V only. IC Role / Device Role / Timing Role: Low-noise I/V converter and output buffer: converts DAC current to voltage while preserving 110+ dB SNR and driving 47 kΩ//220 µF headphone loads. Use Value: 120 nV p-p 0.1–10 Hz noise avoids audible "hum" in quiet passages; rail-to-rail input allows direct coupling to DAC's common-mode voltage. |
| Strain Gage Instrumentation | Temperature Transducer Amplifier |
Use Scenario: Signal conditioning for quarter-bridge strain gages in structural health monitoring sensors deployed in remote field locations. IC Role / Device Role / Timing Role: Single-supply differential amplifier with zero-input capability: both inputs referenced to system ground, eliminating need for negative supply in compact nodes. Use Value: Input common-mode range to 0 V enables direct connection to grounded gage elements; 3.4 MHz GBW supports 10 kHz anti-aliasing filtering before 20 kSps sampling. | Use Scenario: Linearized RTD (Pt100) amplifier for industrial process control with –150°C to +500°C range and ±0.5°C accuracy. IC Role / Device Role / Timing Role: Precision transimpedance and servo amplifier: Channel A establishes virtual ground for 3-wire RTD; Channel B implements linearization feedback loop. Use Value: 150 µV max VOS ensures <0.15°C offset error at 100°C; low drift preserves calibration over months without recalibration cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-noise, single-supply operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP213ES | Same electrical specs, but in 8-lead SOIC (SO-8) surface-mount package; 158°C/W θJA vs. 103°C/W for EP. | Preferred for automated SMT assembly and space-constrained PCBs; requires reflow profile validation due to plastic DIP vs. SOIC thermal mass differences. | Select OP213ES when board area or production automation outweighs through-hole serviceability needs. |
| AD8628ARZ | Zero-drift auto-zero architecture; 0.003 µV/°C drift vs. 0.2 mV/°C; 1.1 µV p-p 0.1–10 Hz noise vs. 120 nV p-p; 2.5 MHz GBW vs. 3.4 MHz. | Better for ultra-stable DC measurements (e.g., precision weigh scales); lower noise floor but reduced bandwidth limits high-speed sensor sampling. | Choose AD8628ARZ when long-term dc stability dominates over bandwidth; OP213EP remains superior for mixed-signal audio or fast-settling applications. |
Compared with OP213ES and AD8628ARZ, the OP213EP offers the optimal balance of low 1/f noise, wide bandwidth, and robust through-hole packaging - making it uniquely suited for field-deployable instrumentation where mechanical reliability and thermal margin are prioritized over miniaturization.
Availability
OP213EP is available at Aetrix Electronics and suitable for digital scales, strain gage instrumentation, and temperature transducer amplifier designs requiring stable component supply across extended industrial temperature ranges (–40°C to +85°C) and long product lifecycles.
Supply support for OP213EP 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, serving industrial, communications, automotive, and consumer markets since 1965.
The OP213EP belongs to the OP113/OP213/OP413 family - engineered specifically for single-supply, high-precision sensor signal conditioning where low noise, low drift, and rail-to-rail input operation are mandatory in battery-powered or unipolar systems.
FAQ
What is the maximum supply voltage for OP213EP?
The OP213EP supports a single-supply voltage range of 4 V to 36 V, with absolute maximum rating of ±18 V. Operation at 36 V is permitted only when ambient temperature remains ≤+85°C and thermal dissipation is managed per the 103°C/W θJA specification for the 8-lead plastic DIP package. Exceeding 36 V risks permanent damage to the internal ESD protection structures.
Does OP213EP require external offset nulling in typical applications?
No, OP213EP does not require external offset nulling in most applications. Its guaranteed maximum input offset voltage is 150 µV over –40°C to +85°C, which introduces <0.15 mV error in a 100× gain amplifier - well within tolerance for 16-bit systems. Pins 1 and 5 are provided for optional trimming using a 10 kΩ potentiometer only when sub-50 µV residual offset is mandated.
Can OP213EP drive capacitive loads without instability?
OP213EP is unity-gain stable but exhibits increased overshoot with capacitive loads >100 pF. TPC 23 and TPC 26 in the datasheet show 10–15% overshoot at 500 pF with 2 kΩ load. For loads >100 pF, add a 10–50 Ω series resistor between output and capacitance to restore phase margin without degrading bandwidth significantly.
How does OP213EP handle input voltages below the negative supply rail?
OP213EP includes built-in phase reversal protection as long as both inputs remain within the supply rails. If either input falls below V– (ground), input current must be limited to <2 mA using a series resistor to prevent damage. The device does not tolerate sustained input voltages <–0.3 V without external current limiting, per Absolute Maximum Ratings.
Is OP213EP suitable for audio line-driver applications?
Yes, OP213EP is suitable for professional audio line drivers due to its 0.0009% THD + noise at 1 kHz, 4.7 nV/√Hz noise floor, and ability to drive 600 Ω loads with ±30 mA output current. Its 3.4 MHz bandwidth exceeds requirements for 20 kHz audio, and rail-to-rail input enables direct coupling to DAC outputs with common-mode voltages near mid-supply.
OP213EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
OP213EP FAQ
1.How can I place an order for OP213EP through Aetrix?
Please submit a Request for Quotation (RFQ) for OP213EP 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 OP213EP reliable?
The price and inventory of OP213EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP213EP is usually 5 days.
3.What payment methods are accepted for OP213EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP213EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP213EP?
OP213EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP213EP 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 OP213EP?
For technical support, including OP213EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP213EP requirements.
6.How does Aetrix verify that OP213EP is sourced from the original manufacturer or authorized distributors?
All OP213EP 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 OP213EP meets industry standards.
7.What is the process for return or replacement of OP213EP?
All OP213EP units undergo pre-shipment inspection (PSI). If there is an issue with OP213EP, 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 OP213EP part is unused and in its original packaging.
Return procedure for OP213EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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