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Texas Instruments OPA2316IDRGR
- Part No.:
- OPA2316IDRGR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
OPA2316IDRGR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,491
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Product details
Overview
OPA2316IDRGR from Texas Instruments is a dual, rail-to-rail input/output, low-noise CMOS operational amplifier optimized for 1.8-V to 5.5-V single-supply operation. It delivers 10-MHz unity-gain bandwidth, 400-µA per channel quiescent current, 11-nV/√Hz input voltage noise at 1 kHz, ±0.5-mV offset voltage, and ±5-pA input bias current - enabling precision signal conditioning in space-constrained, battery-powered systems such as portable medical sensors and barcode scanners.
For engineers reviewing the OPA2316IDRGR datasheet, OPA2316IDRGR pinout, OPA2316IDRGR application, or OPA2316IDRGR equivalent, this device supports low-voltage, low-power analog front-ends requiring high DC accuracy, wide dynamic range, and robust EMI rejection without external filtering.
Technical Context
The OPA2316IDRGR integrates a unity-gain stable, fully differential CMOS input stage with internal RFI-EMI filtering and no phase reversal under overdrive. Its rail-to-rail output swing (within 15 mV of rails at 1.8 V, 30 mV at 5.5 V) and wide common-mode input range (extending 0.2 V beyond both supply rails) support direct interfacing with ADCs and microcontroller I/O in single-supply configurations.
Designed for low-voltage precision, it maintains 94–100 dB open-loop gain across 1.8–5.5 V supply, achieves 6 V/µs slew rate, settles to 0.1% in 1 µs (2-V step), and recovers from overload in 0.3 µs - making it suitable for active filters, audio preamps, and fast-settling sensor interfaces where power, noise, and speed must coexist.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 10 MHz - enables stable closed-loop operation up to 10× gain at 1 MHz or unity gain at full bandwidth for wideband signal amplification. |
| Quiescent Current / Channel | 400 µA - allows dual-channel operation at <1 mW total power from 2.5-V supply, critical for coin-cell or energy-harvesting systems. |
| Input Voltage Noise | 11 nV/√Hz at 1 kHz - preserves SNR in high-impedance sensor interfaces (e.g., thermopiles, photodiodes) without degrading resolution. |
| Input Bias Current | ±5 pA - supports accurate amplification of signals from MΩ-level source impedances (e.g., pH electrodes, piezoresistive sensors). |
| Offset Voltage | ±0.5 mV - ensures ≤0.02% error in 2.5-V full-scale measurements, reducing need for system-level calibration. |
| Supply Range | 1.8 V to 5.5 V - interoperates with Li-ion, Li-po, and 3.3-V/5-V logic domains without level-shifting circuitry. |
| CMRR / PSRR | ≥86 dB / ≥150 µV/V - rejects supply ripple and common-mode interference in noisy industrial or automotive environments. |
Pinout & Package
OPA2316IDRGR is housed in an 8-pin DFN (DRG) package measuring 3.0 mm × 3.0 mm with 0.5-mm pitch and an exposed thermal pad on the underside, which must be connected to V– for optimal thermal performance and EMI suppression.
| 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 low distortion. |
| 2 | –IN A | Inverting input of Amplifier A - forms feedback node in inverting configurations; high impedance minimizes loading. |
| 3 | +IN A | Noninverting input of Amplifier A - accepts signals from 0.2 V below V– to 0.2 V above V+ across full supply range. |
| 4 | V– | Negative supply or ground reference - serves as return path for both amplifiers and thermal pad connection point. |
| 5 | +IN B | Noninverting input of Amplifier B - electrically isolated from Channel A; supports dual-sensor or differential pair topologies. |
| 6 | –IN B | Inverting input of Amplifier B - shares same low-bias, high-CMRR characteristics as Channel A for matched performance. |
| 7 | OUT B | Amplifier B output - independently buffered; enables dual-path signal processing without crosstalk (channel separation >100 dB). |
| 8 | V+ | Positive supply - powers both amplifiers; supplies internal bias networks and output stage drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full utilization of 1.8-V supply headroom: input common-mode extends to V– – 0.2 V and V+ + 0.2 V; output swings within 15 mV of rails at 1.8 V. |
| Integrated RFI-EMI Filter | Rejects >30 dB of 100-MHz–2-GHz RF interference at the input pins, eliminating need for external ferrite beads or RC filters in EMC-sensitive designs. |
| No Phase Reversal | Prevents output latch-up during input overdrive - critical for sensor interfaces where transient excursions exceed supply rails (e.g., ESD events, inductive kickback). |
| High ESD Protection | 4-kV HBM rating protects against handling damage and system-level ESD events without external TVS diodes. |
| Extended Temperature Range | Specified from –40°C to +125°C - qualified for under-hood automotive, industrial control, and outdoor IoT deployments. |
Applications
| Portable Medical Sensors | Barcode Scanner Signal Chain |
|---|---|
Use Scenario: Amplifying low-level bio-potential signals (e.g., ECG, pulse oximetry) from dry electrodes in handheld diagnostic devices. IC Role / Device Role / Timing Role: Dual-channel precision instrumentation amplifier front-end, providing gain, filtering, and ADC driver functionality. Use Value: 11-nV/√Hz noise and ±5-pA bias current preserve microvolt-level signal integrity from high-impedance sources without added complexity or power penalty. | Use Scenario: Conditioning analog output from laser diode photodiode arrays in compact handheld barcode readers. IC Role / Device Role / Timing Role: Transimpedance amplifier and post-amplifier stage converting photocurrent to clean digital-ready voltage. Use Value: 10-MHz bandwidth and 6-V/µs slew rate support fast edge detection of narrow bar-code pulses; rail-to-rail output ensures full ADC utilization. |
| Automotive Cabin Sensors | Active Low-Pass Filters |
Use Scenario: Signal conditioning for cabin temperature, humidity, and CO₂ sensors in automotive infotainment and climate control modules. IC Role / Device Role / Timing Role: Precision buffer and gain stage interfacing resistive/capacitive sensors to 12-bit SAR ADCs. Use Value: ±0.5-mV offset and 86-dB CMRR maintain accuracy despite 12-V battery ripple and thermal drift across –40°C to +125°C. | Use Scenario: Implementing 2nd-order Sallen-Key or multiple-feedback active filters in audio line drivers and sensor anti-aliasing paths. IC Role / Device Role / Timing Role: Unity-gain stable op-amp core enabling precise pole placement with minimal external components. Use Value: 10-MHz GBP and 60° phase margin ensure predictable filter response without peaking or instability across process/voltage/temperature corners. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2313IDR | Lower bandwidth (1 MHz), higher noise (25 nV/√Hz), same 1.8–5.5-V supply and 50-µA IQ. | Better suited for ultra-low-power DC-coupled applications (e.g., pH meters) where speed is secondary to battery life. | Select OPA2313IDR only when bandwidth <1 MHz suffices and sub-50-µA per channel IQ is mandatory. |
| MCP6022-E/SN | Higher IQ (1 mA/ch), lower GBP (10 MHz same), wider offset (±1.5 mV), no integrated RFI filter. | Preferred in cost-sensitive industrial controls where EMI immunity is managed externally and higher drive capability is needed. | Choose MCP6022-E/SN if board-level EMI filtering is already implemented and output short-circuit current (>25 mA) is required. |
Compared with OPA2316IDRGR, OPA2313IDR trades bandwidth and noise for lower power, while MCP6022-E/SN offers higher output drive at the expense of noise, offset, and built-in EMI protection - making OPA2316IDRGR the optimal balance for precision, speed, and robustness in compact battery-powered systems.
Availability
OPA2316IDRGR is available at Aetrix Electronics and suitable for portable medical diagnostics, automotive cabin sensing, and industrial barcode scanning requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for OPA2316IDRGR 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 for industrial, automotive, personal electronics, and communications markets.
The OPAx316 family was designed specifically for low-voltage, low-power precision analog signal chains - targeting battery-operated instruments, sensor interfaces, and portable medical equipment where rail-to-rail operation, low noise, and EMI resilience are non-negotiable.
FAQ
What is the operating supply voltage range for the OPA2316IDRGR?
The OPA2316IDRGR operates from 1.8 V to 5.5 V total supply voltage (V+ to V–), supporting single-supply configurations down to 1.8 V - ideal for Li-ion, Li-po, and regulated 3.3-V systems. This range is fully specified across –40°C to +125°C, and the device maintains rail-to-rail input/output performance throughout.
Does the OPA2316IDRGR include EMI filtering?
Yes, the OPA2316IDRGR integrates an internal RFI-EMI rejection filter on its input pins, providing >30 dB attenuation of high-frequency interference (100 MHz–2 GHz). This eliminates the need for external RC filters or ferrite beads in most consumer and industrial applications, simplifying layout and reducing BOM count.
What is the typical input offset voltage of the OPA2316IDRGR?
The typical input offset voltage of the OPA2316IDRGR is ±0.5 mV at 25°C and 5-V supply, with a maximum of ±2.5 mV over temperature and supply. This low offset enables high-accuracy DC-coupled amplification - for example, achieving <0.02% error in a 2.5-V full-scale measurement without trimming.
Can the OPA2316IDRGR drive capacitive loads directly?
The OPA2316IDRGR is unity-gain stable and characterized to drive up to 100 pF capacitive loads without oscillation, as verified in the datasheet's settling time and phase margin tests. For larger loads (>100 pF), a small series resistor (e.g., 10–50 Ω) at the output is recommended to maintain stability and preserve transient response.
Is the OPA2316IDRGR pin-compatible with other packages in the OPA2316 family?
No - the OPA2316IDRGR uses the 8-pin DFN (DRG) package with a specific 3.0 mm × 3.0 mm footprint and exposed thermal pad. It is not pin-compatible with the SOIC-8 (D), MSOP-8 (DGK), or other variants; each package has distinct pin assignments and thermal pad requirements. Always verify layout against the DRG-specific mechanical drawing.
OPA2316IDRGR 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)
OPA2316IDRGR FAQ
1.How can I place an order for OPA2316IDRGR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2316IDRGR 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 OPA2316IDRGR reliable?
The price and inventory of OPA2316IDRGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2316IDRGR is usually 5 days.
3.What payment methods are accepted for OPA2316IDRGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2316IDRGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2316IDRGR?
OPA2316IDRGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2316IDRGR 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 OPA2316IDRGR?
For technical support, including OPA2316IDRGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2316IDRGR requirements.
6.How does Aetrix verify that OPA2316IDRGR is sourced from the original manufacturer or authorized distributors?
All OPA2316IDRGR 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 OPA2316IDRGR meets industry standards.
7.What is the process for return or replacement of OPA2316IDRGR?
All OPA2316IDRGR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2316IDRGR, 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 OPA2316IDRGR part is unused and in its original packaging.
Return procedure for OPA2316IDRGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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