My Inquiry
My Account
Texas Instruments OPA313IDBVT
- Part No.:
- OPA313IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA313IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,332
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA313IDBVT from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, precision signal conditioning in battery-powered systems. It delivers 1-MHz gain bandwidth, 50 µA quiescent current per channel, 25 nV/√Hz input voltage noise at 1 kHz, 0.5 mV typical offset voltage, and operates from 1.8 V to 5.5 V - enabling high-accuracy sensor interfacing in portable medical monitors and loop-powered industrial transmitters.
For engineers reviewing the OPA313IDBVT datasheet, OPA313IDBVT pinout, OPA313IDBVT application, or OPA313IDBVT equivalent, this page provides verified technical context, real-world design meaning of key specs, validated SOT23-5 pin mapping, application-specific value statements, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The OPA313IDBVT employs a complementary differential input stage (N- and P-channel pairs) enabling true rail-to-rail common-mode input range extending 200 mV beyond both supply rails - critical for single-supply operation down to +1.8 V. Its class AB output stage drives ≥10-kΩ loads while maintaining rail-to-rail swing.
It integrates an internal RF/EMI rejection filter (–3 dB at ~35 MHz) and features no phase reversal under overdrive, 4-kV HBM ESD protection, and unity-gain stability with up to 150 pF capacitive load - simplifying layout and improving robustness in noisy, space-constrained environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct integration into Li-ion, coin-cell, and energy-harvesting power domains without level-shifting. |
| Quiescent Current | 50 µA/ch (typ) - enables >1-year battery life in always-on sensor nodes drawing <1 µA average system current. |
| Gain Bandwidth Product | 1 MHz - sufficient for anti-aliasing filtering before 100-kSPS SAR ADCs and closed-loop control in low-speed analog front-ends. |
| Input Offset Voltage | 0.5 mV (typ), 2.5 mV (max) - ensures ≤0.05% full-scale error in 12-bit measurement systems with ±2.5 V input range. |
| Input Voltage Noise | 25 nV/√Hz at 1 kHz - preserves SNR in high-impedance pH or thermopile sensor interfaces where source impedance exceeds 100 kΩ. |
| Input Bias Current | 0.2 pA (typ) - prevents significant voltage drop across >10 GΩ sensor elements (e.g., piezoelectric, photodiode in photovoltaic mode). |
| CMRR / PSRR | 70–85 dB over –40°C to +125°C - maintains accuracy in unregulated supplies and noisy industrial ground planes. |
Pinout & Package
SOT23-5 package (DBV), 5-pin surface-mount, exposed pad not present - compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified, rail-to-rail voltage output capable of sourcing/sinking ±12 mA; connects directly to ADC input or next-stage buffer. |
| 2 (IN–) | Inverting Input | Differential input node; accepts feedback network or configured as summing junction; protected by internal ESD diodes to rails. |
| 3 (IN+) | Non-inverting Input | High-impedance input (0.2 pA bias); used for reference voltage buffering or high-side sensing; rail-to-rail common-mode range. |
| 4 (V–) | Negative Supply | Ground reference for single-supply operation; must be bypassed with 0.01-µF ceramic capacitor near pin. |
| 5 (V+) | Positive Supply | Primary power connection; supports 1.8–5.5 V; internal regulator enables stable operation across battery discharge curve. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 1.8-V systems - e.g., 0–1.8 V output swing into 10-kΩ load improves ADC effective resolution by ≥1 LSB. |
| Internal RF/EMI filter | Reduces offset shift from 10–6 GHz ambient RF fields - eliminates need for external ferrite beads or π-filters in wireless sensor enclosures. |
| No phase reversal on overdrive | Prevents latch-up or erroneous control signals when inputs exceed rails - essential for fault-tolerant industrial I/O modules. |
| Extended temperature range | Specified from –40°C to +125°C - qualified for under-hood automotive sensors and outdoor utility metering without derating. |
| Low input bias current (0.2 pA) | Minimizes error in megaohm-source applications like electrochemical gas sensors - avoids >1-mV offset drift due to leakage. |
Applications
| Battery-Powered Medical Monitor | Loop-Powered Industrial Transmitter |
|---|---|
Use Scenario: Amplifying low-level ECG electrode signals (0.5–5 mVpp) in a wearable patch monitor powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with rail-to-rail input to capture baseline shifts and rail-referenced common-mode rejection. Use Value: 50 µA quiescent current extends battery life to >18 months; 0.5 mV offset ensures <1% amplitude error in 5-mV signal path without calibration. |
Use Scenario: Conditioning 4–20 mA loop current sensor output in hazardous-area field transmitter with intrinsic safety barriers. IC Role / Device Role / Timing Role: Low-power, high-impedance buffer and level shifter converting loop voltage to 0–2.5 V for microcontroller ADC sampling. Use Value: 1.8-V minimum supply allows direct use of loop-derived power; 0.2 pA input bias prevents loading of high-Z current-sense resistors. |
| Wireless Home Security Sensor | Notebook Ambient Light Controller |
Use Scenario: Signal conditioning for passive infrared (PIR) motion detector output prior to ultra-low-power MCU wake-up interrupt. IC Role / Device Role / Timing Role: High-gain, low-noise amplifier with adjustable hysteresis threshold detection using rail-to-rail output swing. Use Value: 25 nV/√Hz noise density preserves weak PIR signal integrity; 1-MHz GBW supports fast transient response (<10 µs rise time). |
Use Scenario: Amplifying photodiode current in notebook lid-mounted ambient light sensor for automatic display brightness control. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with programmable gain, leveraging rail-to-rail output to maximize ADC input range. Use Value: 0.2 pA input bias avoids photodiode dark-current interference; 50 µA IQ minimizes impact on system sleep-mode power budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-I/OT | Higher IQ (100 µA), lower GBW (1 MHz same), higher offset (1.5 mV max), no integrated EMI filter | Limited to less demanding consumer-grade light sensors; unsuitable for EMI-prone industrial or medical environments | Select when cost is primary constraint and EMI immunity is not required; verify layout-level filtering for RF-sensitive use cases. |
| TLV851DBVR | Lower IQ (38 µA), lower GBW (550 kHz), higher noise (30 nV/√Hz), same rail-to-rail I/O and temp range | Better suited for sub-100-kHz sensor buffering where ultra-low power dominates bandwidth needs | Choose for longest battery life in static-sensing applications (e.g., temperature loggers); avoid for fast-response motion or audio paths. |
Compared with MCP6001T-I/OT and TLV851DBVR, the OPA313IDBVT uniquely balances 1-MHz bandwidth, 50-µA IQ, and integrated EMI filtering - making it the only option among the three qualified for precision, noise-immune operation in certified medical or industrial field devices.
Availability
OPA313IDBVT is available at Aetrix Electronics and suitable for battery-powered instruments, sensor signal conditioning, and wireless sensors requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for OPA313IDBVT 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 leader delivering analog and embedded processing solutions with emphasis on reliability, precision, and low-power innovation.
The OPA313IDBVT belongs to TI's Precision Value Line op amp series - designed specifically for cost-sensitive, battery-operated applications demanding rail-to-rail performance, micro-power operation, and robust EMI immunity without sacrificing DC accuracy.
FAQ
What is the maximum capacitive load the OPA313IDBVT can drive while remaining stable?
The OPA313IDBVT is unity-gain stable with capacitive loads up to 150 pF, as confirmed in the datasheet's Phase Margin vs Capacitive Load plot (Figure 21). This allows direct connection to ADC input capacitors or long PCB traces without external isolation resistors - reducing component count and board area in compact sensor nodes. For loads exceeding 150 pF, a small series resistor (e.g., 10–50 Ω) at the output restores stability without degrading DC accuracy. The OPA313IDBVT's internal compensation eliminates need for external compensation networks.
Does the OPA313IDBVT support true rail-to-rail input at 1.8-V supply?
Yes, the OPA313IDBVT supports rail-to-rail input at 1.8 V: its common-mode input range extends from (V–) – 0.2 V to (V+) + 0.2 V, meaning it accepts signals from –0.2 V to +2.0 V when powered from 1.8 V. This is enabled by its dual-input-stage architecture (N- and P-channel pairs), allowing seamless operation across the full supply range - critical for accurate zero-crossing detection and single-supply sensor biasing in ultra-low-voltage designs using the OPA313IDBVT.
How does the internal EMI filter in the OPA313IDBVT improve system-level robustness?
The OPA313IDBVT's integrated low-pass EMI filter (–3 dB at ~35 MHz) attenuates high-frequency interference before it rectifies at internal junctions - preventing measurable offset voltage shifts during RF exposure (e.g., GSM bursts, Wi-Fi transmissions). Measured EMIRR IN+ exceeds 100 dB at 900 MHz, eliminating need for external shielding or feedthrough capacitors in wireless sensor housings. This built-in immunity directly enhances measurement repeatability in the OPA313IDBVT without added BOM cost or layout complexity.
Can the OPA313IDBVT be used in a transimpedance amplifier (TIA) configuration with photodiodes?
Yes, the OPA313IDBVT is well-suited for TIA applications: its 0.2 pA typical input bias current minimizes dark-current error in high-impedance photodiode circuits, and its 25 nV/√Hz input voltage noise dominates over current noise at typical photodiode impedances (<1 GΩ). Stability is ensured with standard 1–10 pF feedback capacitors to control peaking. The OPA313IDBVT's rail-to-rail output enables full utilization of the ADC's input range - maximizing dynamic range in ambient light sensing systems.
What is the guaranteed operating temperature range for the OPA313IDBVT?
The OPA313IDBVT is fully specified and production-tested over –40°C to +125°C, with absolute maximum ratings extending to +150°C junction temperature. Electrical parameters including offset voltage drift (2 µV/°C typ), CMRR (≥70 dB), and quiescent current (≤85 µA) are guaranteed across this full industrial temperature range - enabling reliable deployment in under-hood automotive modules, outdoor smart meters, and factory-floor instrumentation where the OPA313IDBVT replaces higher-cost automotive-qualified op amps.
OPA313IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA313IDBVT FAQ
1.How can I place an order for OPA313IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA313IDBVT 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 OPA313IDBVT reliable?
The price and inventory of OPA313IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA313IDBVT is usually 5 days.
3.What payment methods are accepted for OPA313IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA313IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA313IDBVT?
OPA313IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA313IDBVT 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 OPA313IDBVT?
For technical support, including OPA313IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA313IDBVT requirements.
6.How does Aetrix verify that OPA313IDBVT is sourced from the original manufacturer or authorized distributors?
All OPA313IDBVT 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 OPA313IDBVT meets industry standards.
7.What is the process for return or replacement of OPA313IDBVT?
All OPA313IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA313IDBVT, 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 OPA313IDBVT part is unused and in its original packaging.
Return procedure for OPA313IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA313IDBVT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
