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Texas Instruments OPA2316SIRUGT
- Part No.:
- OPA2316SIRUGT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-XFQFN
- Datasheet:
-
OPA2316SIRUGT.pdf
- Description:
- IC CMOS 2 CIRCUIT 10X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,928
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Product details
Overview
OPA2316SIRUGT from Texas Instruments is a dual, rail-to-rail input/output, low-power CMOS operational amplifier with shutdown control, designed for precision signal conditioning in space-constrained, battery-powered systems. It delivers 10-MHz unity-gain bandwidth, 400 µA per channel quiescent current, ±0.5-mV typical offset voltage, and 11 nV/√Hz input voltage noise at 1 kHz - enabling high-fidelity amplification in portable medical sensors and industrial IoT front-ends.
For engineers reviewing the OPA2316SIRUGT datasheet, OPA2316SIRUGT pinout, OPA2316SIRUGT application, or OPA2316SIRUGT equivalent, this page provides verified package mapping (10-pin X2QFN, 1.5 mm × 2.0 mm), confirmed dual-channel shutdown timing (tON = 13 µs full, tOFF = 5 µs), rail-to-rail I/O swing down to 1.8-V supply, and real-world performance data across –40°C to +125°C.
Technical Context
The OPA2316SIRUGT integrates two independent amplifiers with individual shutdown pins (SHDN_A and SHDN_B), supporting partial or full device disablement while maintaining bias integrity. Its CMOS input stage enables ±5-pA typical input bias current and >1016 Ω differential input impedance - critical for high-impedance sensor interfaces like piezoresistive bridges and pH electrodes.
Internally compensated for unity-gain stability, it achieves 60° phase margin at 10 MHz with 6 V/µs slew rate and 1-µs 0.1% settling time (2-V step, 100-pF load). The integrated RFI-EMI filter suppresses high-frequency interference without external components, and no phase reversal occurs under overdrive conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 10 MHz - supports stable closed-loop operation up to audio and ultrasonic sensing frequencies without external compensation. |
| Quiescent Current / Channel | 400 µA - enables multi-day operation on coin-cell batteries in always-on wearable health monitors. |
| Input Offset Voltage | ±0.5 mV (typ) - reduces DC error in 12-bit ADC front-ends without trimming, preserving dynamic range. |
| Input Voltage Noise Density | 11 nV/√Hz at 1 kHz - maintains SNR > 85 dB in low-level thermocouple or strain-gauge signal chains. |
| Rail-to-Rail I/O Swing | Operates from 1.8 V to 5.5 V supply; output swings within 15 mV of rails at 1.8 V - maximizes usable ADC input range in single-supply systems. |
| Shutdown Current (Full) | 0.01 µA - cuts total system standby power to sub-nW levels when both channels disabled, extending shelf life. |
| CMRR / PSRR | 86 dB / 150 µV/V (typ) at 1.8 V - rejects supply ripple and common-mode noise in noisy industrial environments. |
Pinout & Package
OPA2316SIRUGT is housed in a 10-pin X2QFN (RUG) package measuring 1.50 mm × 2.00 mm with an exposed thermal pad on the underside, optimized for compact PCB layouts and efficient heat dissipation in dense sensor modules.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream ADC or filter stage; rail-to-rail swing supports full-scale utilization. |
| 2 | –IN A | Inverting input for channel A - used in transimpedance or difference amplifier configurations with MΩ source impedances. |
| 3 | +IN A | Noninverting input for channel A - accepts high-impedance sensor signals with ±5 pA bias current. |
| 4 | V– | Negative supply or ground reference - connects directly to PCB ground plane; thermal pad must be soldered to GND for thermal stability. |
| 5 | SHDN A | Channel A shutdown control - logic-low disables amplifier A; enables independent power gating per channel. |
| 6 | SHDN B | Channel B shutdown control - allows asymmetric power management (e.g., keep B active for wake-up monitoring while A sleeps). |
| 7 | +IN B | Noninverting input for channel B - supports dual-sensor inputs (e.g., differential temperature pair) with matched characteristics. |
| 8 | –IN B | Inverting input for channel B - maintains <1 µV/V channel separation for simultaneous analog acquisition. |
| 9 | OUT B | Amplifier B output - electrically isolated from OUT A; supports independent gain/feedback networks. |
| 10 | V+ | Positive supply - accepts 1.8–5.5 V; internal regulation ensures stable biasing across wide input range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization with 1.8-V single supply - eliminates level-shifting circuitry in ultra-low-voltage designs. |
| Integrated RFI-EMI filter | Rejects >30-dB interference at 900 MHz and 2.4 GHz without external RC networks - simplifies EMI-compliant layout in wireless sensor nodes. |
| No phase reversal on overdrive | Prevents latch-up or erroneous output transitions during input overload - improves reliability in unconditioned industrial signal paths. |
| 4-kV HBM ESD protection | Withstands electrostatic discharge during handling and assembly - reduces field failure risk in automated manufacturing lines. |
| Extended temperature range | Specified from –40°C to +125°C - supports operation in automotive engine compartments and outdoor industrial enclosures. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG electrode signals in disposable patch monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with one channel for lead-I and one for lead-II, each independently shut down between measurements. Use Value: 11 nV/√Hz noise and ±5 pA input bias preserve signal fidelity from dry electrodes; 400 µA/ch extends battery life beyond 7 days. |
Use Scenario: Conditioning 4–20 mA loop sensor outputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision buffer and level shifter converting loop current to 0–5 V for SAR ADC sampling at 100 kSPS. Use Value: 86 dB CMRR rejects common-mode noise from motor drives; rail-to-rail output ensures full ADC code utilization. |
| Automotive Cabin Sensing | Barcode Scanner Signal Chain |
|
Use Scenario: Amplifying photodiode current from IR proximity sensors in smart rearview mirrors. IC Role / Device Role / Timing Role: Transimpedance amplifier with shutdown enabled during vehicle sleep mode to minimize quiescent draw. Use Value: 0.01 µA shutdown current meets ISO 16750-2 parasitic drain limits; 10-MHz bandwidth captures fast gesture events. |
Use Scenario: Boosting weak analog pulses from CMOS image sensors in handheld barcode readers. IC Role / Device Role / Timing Role: High-speed post-amplifier stage driving ADC with 1-µs settling time and 6 V/µs slew rate. Use Value: Unity-gain stability and 60° phase margin prevent oscillation in compact flex-circuit layouts; low 15-mV output headroom maximizes SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2313IDGKR | Lower bandwidth (350 kHz), higher IQ (50 µA/ch), no shutdown, SOIC-8 package (3×3 mm). | Suitable for DC-coupled, low-speed sensor buffers where power is less constrained and board area is not critical. | Choose OPA2313IDGKR only if bandwidth < 1 MHz suffices and shutdown functionality is unnecessary. |
| TLV9062IDSGR | Higher bandwidth (10 MHz), higher IQ (530 µA/ch), no shutdown, WSON-8 package (2.5×2.5 mm), lower offset (±0.3 mV). | Better for high-precision, high-speed applications requiring tighter DC accuracy but lacking independent channel disable capability. | Choose TLV9062IDSGR when lowest offset is prioritized over shutdown control and ultra-low IQ. |
Compared with OPA2316SIRUGT, OPA2313IDGKR trades bandwidth and shutdown for lower cost and simpler biasing, while TLV9062IDSGR offers superior DC precision at the expense of 33% higher quiescent current and no per-channel shutdown - making OPA2316SIRUGT optimal for battery-powered, duty-cycled dual-sensor systems.
Availability
OPA2316SIRUGT is available at Aetrix Electronics and suitable for portable medical devices, industrial process controllers, automotive cabin sensors, and barcode scanner signal chains requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for OPA2316SIRUGT 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 specializing in analog and embedded processing technologies, with decades of expertise in precision amplifiers and low-power design.
The OPAx316 family was engineered for cost-sensitive, battery-operated applications demanding high AC performance and ultra-low quiescent power - targeting portable instrumentation, sensor fusion, and energy-harvesting systems.
FAQ
What is the maximum operating temperature range for the OPA2316SIRUGT?
The OPA2316SIRUGT is specified for continuous operation from –40°C to +125°C ambient temperature, with absolute maximum junction temperature rated at 150°C. This extended range supports deployment in under-hood automotive environments and industrial enclosures exposed to thermal cycling, as confirmed in Section 6.3 of the SBOS703F datasheet.
Does the OPA2316SIRUGT require external compensation for unity-gain stability?
No, the OPA2316SIRUGT is internally compensated and unity-gain stable across its full supply range (1.8 V to 5.5 V), with 60° phase margin verified at 10 MHz. No external compensation components are needed - simplifying layout and reducing BOM count in high-frequency sensor amplifier designs.
How does the shutdown function operate on the OPA2316SIRUGT?
The OPA2316SIRUGT features two independent shutdown pins (SHDN_A and SHDN_B). Driving either pin low disables its respective amplifier channel, reducing quiescent current to 345 µA per partially disabled channel or 0.01 µA for full dual-channel shutdown. Enable/disable times are 13 µs (full) and 5 µs (disable), per Section 6.8 of the datasheet.
Can the OPA2316SIRUGT drive capacitive loads up to 100 pF without oscillation?
Yes - the OPA2316SIRUGT achieves 1-µs 0.1% settling time with a 100-pF capacitive load at unity gain, as measured in Section 6.8 (tS). Its robust phase margin and integrated RFI-EMI filter ensure stable operation into moderate capacitive loads typical of PCB traces and ADC input capacitance, eliminating need for isolation resistors.
What is the input bias current specification for the OPA2316SIRUGT at 125°C?
At +125°C, the OPA2316SIRUGT exhibits ±15 nA maximum input bias current, per Section 6.8 of the SBOS703F datasheet. This remains sufficiently low to avoid significant voltage error in MΩ-range sensor interfaces (e.g., pH electrodes or photodiode TIA feedback networks) even at elevated temperatures.
OPA2316SIRUGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 400µA (x2 Channels)
- Current - Output / Channel:
- 50 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:
- 10-X2QFN (2x1.5)
OPA2316SIRUGT FAQ
1.How can I place an order for OPA2316SIRUGT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2316SIRUGT 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 OPA2316SIRUGT reliable?
The price and inventory of OPA2316SIRUGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2316SIRUGT is usually 5 days.
3.What payment methods are accepted for OPA2316SIRUGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2316SIRUGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2316SIRUGT?
OPA2316SIRUGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2316SIRUGT 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 OPA2316SIRUGT?
For technical support, including OPA2316SIRUGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2316SIRUGT requirements.
6.How does Aetrix verify that OPA2316SIRUGT is sourced from the original manufacturer or authorized distributors?
All OPA2316SIRUGT 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 OPA2316SIRUGT meets industry standards.
7.What is the process for return or replacement of OPA2316SIRUGT?
All OPA2316SIRUGT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2316SIRUGT, 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 OPA2316SIRUGT part is unused and in its original packaging.
Return procedure for OPA2316SIRUGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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