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Texas Instruments OPA2313QDRQ1
- Part No.:
- OPA2313QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2313QDRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,467
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Product details
Overview
OPA2313QDRQ1 from Texas Instruments is a dual-channel, AEC-Q100 Grade 1 qualified rail-to-rail input/output operational amplifier designed for automotive signal conditioning. It delivers 1 MHz gain-bandwidth, 50 µA/ch quiescent current, 25 nV/√Hz input voltage noise at 1 kHz, and 0.5 mV typical input offset voltage - enabling precision low-power sensing in engine control units and battery management systems.
For engineers reviewing the OPA2313QDRQ1 datasheet, OPA2313QDRQ1 pinout, OPA2313QDRQ1 application, or OPA2313QDRQ1 equivalent, this page provides verified electrical specs, SOIC-8 and VSSOP-8 package mapping, automotive-grade thermal and ESD performance (4-kV HBM), and validated alternatives for infotainment, passive safety, and low-side current sensing designs.
Technical Context
The OPA2313QDRQ1 employs a complementary differential input stage enabling true rail-to-rail input operation - with common-mode range extending 200 mV beyond both supply rails - and a Class AB output stage delivering rail-to-rail swing within 5 mV of either rail under 100-kΩ load. Its unity-gain stability supports capacitive loads up to 1 nF without external compensation.
Designed for 1.8 V to 5.5 V single-supply operation across –40°C to +125°C, it integrates an internal RFI/EMI filter and features no phase reversal during overdrive, high PSRR (90 dB) and CMRR (85 dB), and ultra-low input bias current (0.2 pA) - making it suitable for high-impedance sensor interfaces and ADC driver stages in automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 1 MHz - enables stable closed-loop operation up to 100 kHz at G = +10 for sensor signal amplification. |
| Quiescent Current | 50 µA per channel - allows continuous operation in always-on automotive modules without compromising battery life. |
| Input Offset Voltage | 0.5 mV typical - ensures ≤0.5% error in 100-mV full-scale current-sense applications at room temperature. |
| Input Voltage Noise | 25 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level signals from thermocouples or strain gauges. |
| Rail-to-Rail I/O | Input extends (V−) −0.2 V to (V+) +0.2 V; output swings within 5 mV of rails - maximizes dynamic range in 1.8-V or 3.3-V systems. |
| ESD Rating | ±4 kV HBM - meets automotive manufacturing handling requirements and improves board-level robustness. |
| Supply Range | 1.8 V to 5.5 V - operates directly from Li-ion battery (3.0–4.2 V) or 3.3-V/5-V domain rails without LDO. |
Pinout & Package
OPA2313QDRQ1 is available in SOIC-8 (4.90 mm × 3.91 mm) and VSSOP-8 (3.00 mm × 3.00 mm) packages. Both variants share identical pinout and functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT1 | Output, Channel 1 | Class AB buffered output capable of driving ≥10 kΩ load to within 5 mV of V+ or V−. |
| 2: IN1− | Inverting Input, Channel 1 | Differential input node with 0.2 pA bias current - compatible with >10 MΩ source impedances. |
| 3: IN1+ | Noninverting Input, Channel 1 | Complementary input pair enables rail-to-rail common-mode range including both supply rails. |
| 4: V− | Negative Supply / Ground | Reference terminal for single-supply operation; accepts 0 V (ground) or negative rail down to −7 V absolute max. |
| 5: IN2+ | Noninverting Input, Channel 2 | Independent second channel input with same rail-to-rail and low-bias characteristics as Channel 1. |
| 6: IN2− | Inverting Input, Channel 2 | Enables dual-channel differential sensing or independent signal paths without cross-talk degradation. |
| 7: OUT2 | Output, Channel 2 | Electrically isolated output stage; channel separation >100 dB at dc minimizes inter-channel interference. |
| 8: V+ | Positive Supply | Accepts 1.8–5.5 V; internal regulation ensures stable biasing across full automotive temperature range. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - certified for engine bay and powertrain ECUs. |
| Integrated RFI/EMI filter | Rejects >60 dB of 100-MHz–1-GHz conducted noise - reduces susceptibility in noisy automotive harness environments. |
| No phase reversal on overdrive | Prevents latch-up or erroneous output states when inputs exceed supply rails - critical for fault-tolerant sensor monitoring. |
| Unity-gain stable with 150-pF load | Eliminates need for external compensation in buffer configurations - simplifies PCB layout for ADC front-ends. |
| Low input bias current (0.2 pA) | Enables use with megaohm-level source impedances (e.g., pH electrodes, piezoelectric sensors) without gain error. |
Applications
| Infotainment Audio Preamp | Engine Control Unit Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level analog audio signals from microphone or line-in sources in head unit systems. IC Role / Device Role / Timing Role: Dual-channel op amp configured as noninverting preamplifier and active filter stage. Use Value: 25 nV/√Hz noise density preserves SNR in 24-bit audio paths; rail-to-rail output drives ADC input without level-shifting. |
Use Scenario: Conditioning signals from oxygen, knock, or manifold pressure sensors in real-time engine control loops. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with <1 µs settling time for closed-loop feedback sampling. Use Value: 0.5 mV offset and 2 µV/°C drift ensure <0.2% total error over full temperature range - meeting ASAM MCD-2 MC calibration requirements. |
| Automotive Lighting Current Sense | Battery Management System Voltage Monitor |
Use Scenario: Low-side current sensing for LED driver feedback in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: High-common-mode rejection amplifier with 50 µA quiescent current for always-on diagnostics. Use Value: 0.2 pA input bias current prevents measurement error across 100-Ω shunt; rail-to-rail input accommodates near-ground sensing node. |
Use Scenario: Monitoring individual cell voltages in 12S Li-ion traction battery packs with isolation barriers. IC Role / Device Role / Timing Role: Buffered voltage follower driving isolated sigma-delta ADC reference input. Use Value: 1 MHz bandwidth supports fast transient detection during charge/discharge events; 4-kV HBM withstands ESD events in service bay environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM7322QDRQ1 | Higher IQ (1.3 mA/ch), wider GBW (20 MHz), higher noise (14 nV/√Hz), no integrated EMI filter. | Better for high-speed control loops (e.g., motor phase current); unsuitable for ultra-low-power always-on monitoring. | Select LM7322QDRQ1 only when >10× bandwidth and drive strength are required - not a drop-in replacement due to 26× higher current draw. |
| TSV912IQ2T | Lower IQ (85 µA/ch), lower GBW (8 MHz), higher offset (1.5 mV), no AEC-Q100 Grade 1 rating. | Qualified only for Grade 3 (−40°C to +85°C); lacks automotive ESD and thermal validation for powertrain use. | TSV912IQ2T may be used in cabin infotainment where ambient temperature stays below 85°C - but not in ECU or BMS modules. |
Compared with LM7322QDRQ1 and TSV912IQ2T, the OPA2313QDRQ1 uniquely balances sub-100-µA power, 1-MHz bandwidth, AEC-Q100 Grade 1 compliance, and integrated EMI filtering - making it the only option qualified for cost-sensitive, thermally demanding automotive sensor nodes requiring long-term reliability.
Availability
OPA2313QDRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, engine control unit (ECU), and battery management system (BMS) applications requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for OPA2313QDRQ1 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
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in automotive, industrial, and power management ICs.
The OPA2313QDRQ1 belongs to TI's precision automotive op amp product line, engineered specifically for cost-sensitive, low-power signal conditioning in AEC-Q100-compliant vehicle subsystems - balancing accuracy, robustness, and manufacturability.
FAQ
What is the maximum operating temperature for the OPA2313QDRQ1?
The OPA2313QDRQ1 is AEC-Q100 Grade 1 qualified, with guaranteed operation from −40°C to +125°C ambient temperature. Its electrical specifications - including offset voltage drift (2 µV/°C), PSRR (74 dB min), and quiescent current (85 µA max) - are fully characterized across this full automotive temperature range, making it suitable for under-hood engine control unit deployments.
Does the OPA2313QDRQ1 support single-supply operation?
Yes, the OPA2313QDRQ1 supports true single-supply operation from 1.8 V to 5.5 V. Its rail-to-rail input extends 0.2 V beyond both supply rails, and its rail-to-rail output swings within 5 mV of V− (ground) and V+, enabling direct interfacing with 1.8-V or 3.3-V ADCs without level-shifting circuitry - a key advantage in modern low-voltage automotive domains.
What is the typical input offset voltage of the OPA2313QDRQ1?
The OPA2313QDRQ1 has a typical input offset voltage of 0.5 mV at 25°C, with a maximum of 2.5 mV over temperature (−40°C to +125°C). This low offset, combined with a drift of only 2 µV/°C, ensures minimal gain error in precision current-sense and voltage-monitoring applications - such as battery cell voltage tracking in automotive BMS designs using the OPA2313QDRQ1.
Is the OPA2313QDRQ1 unity-gain stable?
Yes, the OPA2313QDRQ1 is unity-gain stable and remains stable with capacitive loads up to 150 pF without external compensation. Its phase margin exceeds 65° at G = +1, and it can drive up to 1 nF with minor overshoot - verified in Figure 21 of the SBOS823 datasheet. This eliminates the need for complex compensation networks in ADC buffer and sensor interface circuits using the OPA2313QDRQ1.
What packaging options are available for the OPA2313QDRQ1?
The OPA2313QDRQ1 is offered in two RoHS-compliant, lead-free packages: 8-pin SOIC (D) measuring 4.90 mm × 3.91 mm, and 8-pin VSSOP (DGK) measuring 3.00 mm × 3.00 mm. Both packages share identical pinout, thermal metrics (RθJA = 138.4°C/W for SOIC, 191.2°C/W for VSSOP), and AEC-Q100 qualification - allowing flexible layout choices without redesigning the schematic or firmware for the OPA2313QDRQ1.
OPA2313QDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 50µA (x2 Channels)
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2313QDRQ1 FAQ
1.How can I place an order for OPA2313QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2313QDRQ1 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 OPA2313QDRQ1 reliable?
The price and inventory of OPA2313QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2313QDRQ1 is usually 5 days.
3.What payment methods are accepted for OPA2313QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2313QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2313QDRQ1?
OPA2313QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2313QDRQ1 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 OPA2313QDRQ1?
For technical support, including OPA2313QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2313QDRQ1 requirements.
6.How does Aetrix verify that OPA2313QDRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA2313QDRQ1 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 OPA2313QDRQ1 meets industry standards.
7.What is the process for return or replacement of OPA2313QDRQ1?
All OPA2313QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2313QDRQ1, 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 OPA2313QDRQ1 part is unused and in its original packaging.
Return procedure for OPA2313QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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