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Texas Instruments OPA2316IDRGT
- Part No.:
- OPA2316IDRGT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
OPA2316IDRGT.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:5,781
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Product details
Overview
OPA2316IDRGT from Texas Instruments is a dual, rail-to-rail input/output, low-noise (11 nV/√Hz), low-power (400 µA/ch) CMOS operational amplifier with 10-MHz unity-gain bandwidth and ±0.5-mV offset voltage, designed for precision signal conditioning in battery-powered medical sensors and portable audio interfaces.
For engineers reviewing the OPA2316IDRGT datasheet, OPA2316IDRGT pinout, OPA2316IDRGT application, or OPA2316IDRGT equivalent, this page delivers verified package mapping (DRG 8-pin DFN), confirmed dual-channel rail-to-rail operation, validated shutdown capability (OPA2316S variant only), and real-world performance data including 6 V/µs slew rate, 1-µs 0.1% settling time, and –40°C to +125°C extended temperature support.
Technical Context
The OPA2316IDRGT implements a fully differential CMOS input stage with p-channel and n-channel input transistors enabling true rail-to-rail common-mode input range down to (V–) – 0.2 V and up to (V+) + 0.2 V at 5.5 V supply. Its internal RFI-EMI filter suppresses high-frequency interference without external components.
It features unity-gain stability with 60° phase margin, no phase reversal under overdrive, and integrated electrostatic discharge protection rated at ±4-kV HBM. The device operates from 1.8 V to 5.5 V total supply, supporting single-supply configurations with ground-referenced inputs and outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 10 MHz - supports stable closed-loop gain ≥1 with full small-signal bandwidth for audio and sensor front-end amplification. |
| Input Voltage Noise | 11 nV/√Hz at 1 kHz - enables high-fidelity amplification of µV-level sensor signals without significant noise contribution. |
| Quiescent Current | 400 µA per channel - allows dual-channel precision amplification in space-constrained, battery-operated devices with >1-year runtime. |
| Input Offset Voltage | ±0.5 mV (typical) - ensures ≤0.1% gain error in 1-V full-scale instrumentation applications without trimming. |
| Rail-to-Rail I/O | Input range: (V–) – 0.2 V to (V+) + 0.2 V; output swing: within 15 mV of rails (1.8 V, RL = 10 kΩ) - maximizes dynamic range in low-voltage systems. |
| Slew Rate | 6 V/µs - supports clean 100-kHz sine-wave output at 2-Vpp without distortion in active filter or driver stages. |
| Settling Time | 1 µs to 0.1% for 2-V step - meets timing requirements for multiplexed sensor acquisition at ≥500 kSPS effective throughput. |
Pinout & Package
OPA2316IDRGT is housed in an 8-pin DFN (DRG) package measuring 3.00 mm × 3.00 mm with 0.5-mm pitch and an exposed thermal pad on the underside, which must be connected to V– for optimal thermal performance (RθJC(bot) = 10.9 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 10 kΩ while maintaining rail-to-rail swing and <1-µs settling. |
| 2 | IN– A | Inverting input A - accepts differential or single-ended signals with ±5 pA bias current, minimizing error in MΩ-source applications. |
| 3 | IN+ A | Noninverting input A - supports common-mode voltages from (V–) – 0.2 V to (V+) + 0.2 V across full supply range. |
| 4 | V– | Negative supply or ground reference - connects to PCB ground plane and thermal pad; supplies return path for both amplifiers. |
| 5 | V+ | Positive supply - accepts 1.8 V to 5.5 V; powers both channels and internal bias circuitry with 400 µA/ch quiescent draw. |
| 6 | IN+ B | Noninverting input B - electrically isolated from Channel A; enables dual independent signal paths on single die. |
| 7 | IN– B | Inverting input B - matched to Channel A for consistent gain accuracy and common-mode rejection in differential configurations. |
| 8 | OUT B | Amplifier B output - identical AC/DC specs to OUT A; supports simultaneous dual-channel buffering or filtering. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply headroom in single-supply sensor interfaces without level-shifting circuitry. |
| Integrated RFI-EMI filter | Rejects >100-MHz RF interference without external RC networks-critical for automotive and industrial EMI-prone environments. |
| No phase reversal on overdrive | Prevents latch-up or system instability when input exceeds supply rails, simplifying anti-aliasing and protection design. |
| 4-kV HBM ESD rating | Meets IEC 61000-4-2 Level 2 requirements for handheld and field-deployable equipment without added protection diodes. |
| Low input bias current (±5 pA) | Supports high-impedance pH electrodes, photodiode transimpedance stages, and piezoelectric sensor conditioning with <1-mV error. |
Applications
| Portable Medical Sensors | Automotive Cabin Sensors |
|---|---|
Use Scenario: Amplifying microvolt-level ECG and pulse oximetry signals in wearable health monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel precision instrumentation amplifier providing gain, filtering, and rail-to-rail buffering before ADC sampling. Use Value: 400 µA/ch quiescent current extends battery life beyond 12 months; 11 nV/√Hz noise preserves SNR in sub-100-µV physiological signals. |
Use Scenario: Signal conditioning for cabin temperature, humidity, and CO₂ sensors in automotive HVAC control modules. IC Role / Device Role / Timing Role: Dual op-amp implementing ratiometric sensor excitation and low-drift differential amplification. Use Value: ±0.5-mV offset and 70–90 dB CMRR ensure <0.5% measurement error across –40°C to +125°C ambient range. |
| Barcode Scanner Front-End | USB-C Audio Adapters |
Use Scenario: Amplifying fast-rise-time analog pulses from laser diode receivers in handheld barcode scanners. IC Role / Device Role / Timing Role: High-speed transimpedance amplifier and pulse shaper driving comparator inputs. Use Value: 10-MHz bandwidth and 6 V/µs slew rate resolve 100-ns laser pulses; 1-µs 0.1% settling enables >500-kSPS digitization. |
Use Scenario: Line-level audio buffering and DC-blocking in compact USB-C DAC/headphone adapters. IC Role / Device Role / Timing Role: Dual rail-to-rail output driver isolating DAC core from variable headphone impedances (16–600 Ω). Use Value: Output swing within 15 mV of rails at 1.8 V ensures >1.7-Vpp headroom into 32-Ω loads; low THD+N (0.0008%) preserves audio fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2313IDR | Lower bandwidth (350 kHz), higher noise (25 nV/√Hz), same 400 µA/ch IQ and rail-to-rail I/O. | Better suited for DC-coupled sensor interfaces where speed is secondary to ultra-low power and cost. | Select OPA2313IDR when bandwidth <1 MHz suffices and system-level noise budget allows ≥2× higher input noise. |
| LMV358IDR | Wider supply range (2.7–5.5 V), higher IQ (130 µA/ch), lower GBP (1 MHz), no RFI filter or ESD rating above 2 kV. | Targeted at cost-sensitive industrial controls where extended temperature and EMI robustness are not required. | Choose LMV358IDR only for legacy designs with existing 2.7-V minimum supply and relaxed noise/EMI specifications. |
Compared with OPA2316IDRGT, OPA2313IDR trades bandwidth and noise performance for lower cost in static-signal applications, while LMV358IDR offers broader legacy compatibility but lacks rail-to-rail input, EMI filtering, and extended temperature support critical for modern portable and automotive use cases.
Availability
OPA2316IDRGT is available at Aetrix Electronics and suitable for portable medical sensors, automotive cabin monitoring systems, and USB-C audio interface designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for OPA2316IDRGT 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 signal-chain solutions.
The OPAx316 family was engineered to deliver best-in-class noise-power-bandwidth trade-offs for battery-constrained, high-fidelity sensing and audio applications operating from 1.8 V, extending TI's portfolio of rail-to-rail CMOS op-amps.
FAQ
What is the maximum supply voltage for OPA2316IDRGT?
The OPA2316IDRGT supports a total supply voltage range of 1.8 V to 5.5 V. This means it can operate from a single 1.8-V supply (V+ = 1.8 V, V– = 0 V) up to ±2.75-V dual supplies (V+ = +2.75 V, V– = –2.75 V). Absolute maximum ratings specify 7 V total supply, but functional operation is guaranteed only within the 1.8–5.5 V range per the datasheet's Recommended Operating Conditions.
Does OPA2316IDRGT include a shutdown function?
No, the OPA2316IDRGT does not include a shutdown feature. Shutdown capability is exclusive to the OPA2316S variant (e.g., OPA2316SIDGKR). The OPA2316IDRGT is a standard dual op-amp with continuous operation; its quiescent current remains at 400 µA per channel regardless of signal activity. For power-gated applications, external enable circuitry or selection of the OPA2316S is required.
What package type is used for OPA2316IDRGT?
The OPA2316IDRGT uses the DRG package: an 8-pin DFN (Dual Flat No-lead) measuring 3.00 mm × 3.00 mm with 0.5-mm pitch and an exposed thermal pad on the underside. This package is distinct from the SOIC (D), MSOP (DGK), or shutdown-enabled MSOP (DGS) variants. The thermal pad must be soldered to a V–-connected copper area for thermal and electrical integrity.
How does OPA2316IDRGT perform at low supply voltages like 1.8 V?
At 1.8 V supply, the OPA2316IDRGT maintains rail-to-rail input (VCM = (V–) – 0.2 V to (V+) V) and output (within 15 mV of rails, RL = 10 kΩ), 10-MHz gain bandwidth, and 400 µA/ch quiescent current. Open-loop gain drops to 94 dB (min), and output swing degrades slightly under heavy load (60 mV from rails at RL = 2 kΩ), but all key specs remain functional per datasheet Electrical Characteristics tables.
Is OPA2316IDRGT suitable for driving ADC inputs?
Yes, the OPA2316IDRGT is well-suited for driving SAR and delta-sigma ADC inputs. Its 1-µs 0.1% settling time, 6 V/µs slew rate, and low output impedance (<250 Ω at 10 MHz) ensure accurate acquisition of 12- to 16-bit conversions. Combined with rail-to-rail output and low noise (11 nV/√Hz), it preserves SNR and minimizes code spread in precision data acquisition systems using OPA2316IDRGT.
OPA2316IDRGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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:
- 8-SON (3x3)
OPA2316IDRGT FAQ
1.How can I place an order for OPA2316IDRGT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2316IDRGT 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 OPA2316IDRGT reliable?
The price and inventory of OPA2316IDRGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2316IDRGT is usually 5 days.
3.What payment methods are accepted for OPA2316IDRGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2316IDRGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2316IDRGT?
OPA2316IDRGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2316IDRGT 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 OPA2316IDRGT?
For technical support, including OPA2316IDRGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2316IDRGT requirements.
6.How does Aetrix verify that OPA2316IDRGT is sourced from the original manufacturer or authorized distributors?
All OPA2316IDRGT 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 OPA2316IDRGT meets industry standards.
7.What is the process for return or replacement of OPA2316IDRGT?
All OPA2316IDRGT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2316IDRGT, 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 OPA2316IDRGT part is unused and in its original packaging.
Return procedure for OPA2316IDRGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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