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Texas Instruments OPA316IDCKT
- Part No.:
- OPA316IDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
OPA316IDCKT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,444
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Product details
Overview
OPA316IDCKT from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-voltage, low-power applications. It delivers 10-MHz unity-gain bandwidth, 400 µA/ch quiescent current, 11 nV/√Hz input voltage noise at 1 kHz, ±0.5 mV offset voltage, and operates from 1.8 V to 5.5 V supply. It is used in battery-powered sensor signal conditioning circuits where precision, low power, and rail-to-rail swing are critical.
For engineers reviewing the OPA316IDCKT datasheet, OPA316IDCKT pinout, OPA316IDCKT application, or OPA316IDCKT equivalent, key selection considerations include its 10-MHz gain-bandwidth product with 6 V/µs slew rate, ultra-low input bias current (±5 pA), extended temperature range (–40°C to +125°C), and integrated RFI-EMI filter for robust operation in noisy environments.
Technical Context
The OPA316IDCKT employs a CMOS input stage enabling femtoampere-level input bias current and high input impedance (1016 Ω differential), making it suitable for high-impedance sensor interfaces. Its internal compensation ensures unity-gain stability without external components.
It features rail-to-rail input common-mode range extending 200 mV beyond both rails and rail-to-rail output swing within 15 mV of each rail under light load (10 kΩ), supporting full dynamic range utilization in 1.8-V systems. The device includes an integrated RFI-EMI rejection filter and exhibits no phase reversal during overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 10 MHz - enables stable closed-loop operation up to 10 MHz at gain = +1, suitable for active filters and audio preamps. |
| Quiescent Current | 400 µA/ch - allows continuous operation in coin-cell–powered devices for multi-year battery life. |
| Input Voltage Noise | 11 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level sensor outputs without significant SNR degradation. |
| Input Bias Current | ±5 pA - permits use with MΩ-range source impedances (e.g., pH electrodes, photodiode transimpedance stages) without measurable offset drift. |
| Offset Voltage | ±0.5 mV (typ) - ensures ≤0.5% error in 1-V full-scale measurement systems without trimming. |
| Supply Range | 1.8 V to 5.5 V - interoperable with Li-ion, Li-po, and dual AA/AAA battery systems, including direct connection to 1.8-V logic rails. |
| Slew Rate | 6 V/µs - supports clean 100-kHz full-scale sine-wave output with <0.1% distortion at 1-V amplitude. |
Pinout & Package
OPA316IDCKT is packaged in a 5-pin SC-70 (DCK) package measuring 1.25 mm × 2.00 mm, optimized for space-constrained portable designs. Thermal pad is not present in this variant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output node; capable of rail-to-rail swing (within 15 mV of V+ or V− at 10 kΩ load). |
| 2 | V− | Negative supply or ground reference; serves as return path for bias current and output current. |
| 3 | +IN | Noninverting input; high-impedance CMOS node (1016 Ω || 2 pF) compatible with high-Z sensors. |
| 4 | −IN | Inverting input; matched to +IN for optimal common-mode rejection and minimal input offset. |
| 5 | V+ | Positive supply; accepts 1.8 V to 5.5 V; internally decoupled to suppress supply noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends (V−) − 0.2 V to (V+) + 0.2 V; output swings within 15 mV of either rail at 10 kΩ - maximizes dynamic range in low-voltage systems. |
| RFI-EMI Filter | Integrated front-end filter rejects >30 MHz RF interference (e.g., GSM bursts, WiFi harmonics) without external components - improves reliability in handheld electronics. |
| No Phase Reversal | Output remains monotonic and predictable even when inputs exceed supply rails - eliminates latch-up risk in overdriven sensor interfaces. |
| High ESD Robustness | 4-kV HBM rating - withstands handling and board-level ESD events without functional degradation or parameter shift. |
| Extended Temperature Range | Specified from –40°C to +125°C - qualified for automotive cabin and industrial control environments without derating. |
Applications
| Portable Medical Sensors | Automotive Cabin Monitoring |
|---|---|
Use Scenario: Amplifying low-amplitude signals from wearable ECG or pulse oximetry sensors powered by coin cells. IC Role / Device Role / Timing Role: Precision DC-coupled transducer amplifier with rail-to-rail output driving 12-bit SAR ADC reference range. Use Value: 400 µA quiescent current extends battery life beyond 3 years; ±5 pA input bias prevents electrode polarization errors in DC-coupled biopotential acquisition. | Use Scenario: Signal conditioning for cabin temperature/humidity sensors in automotive infotainment modules. IC Role / Device Role / Timing Role: Low-drift buffer and gain stage interfacing NTC thermistors and capacitive humidity elements to MCU ADC inputs. Use Value: ±0.5 mV offset and ±2 µV/°C drift ensure <0.5°C measurement accuracy across –40°C to +85°C; RFI filter suppresses ignition noise. |
| Barcode Scanner Front-End | Industrial IoT Analog Input Modules |
Use Scenario: Amplifying fast-rise-time photocurrent pulses from linear image sensors in handheld barcode scanners. IC Role / Device Role / Timing Role: High-speed transimpedance amplifier with 10-MHz bandwidth and 6 V/µs slew rate driving ADC sampling at ≥1 MSPS. Use Value: 10-MHz GBP and 1.66 µs settling to 0.01% enable accurate digitization of sub-microsecond optical pulses; rail-to-rail output matches 0–3.3 V ADC input range. | Use Scenario: Isolated analog input channel in DIN-rail-mounted PLC modules measuring 4–20 mA or 0–10 V field signals. IC Role / Device Role / Timing Role: Precision buffer and level-shifter between isolated signal conditioning stage and 24-bit delta-sigma ADC. Use Value: 100 dB open-loop gain and 86 dB CMRR at DC ensure <0.01% linearity over temperature; 1.8-V minimum supply supports wide-input-range auxiliary power rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher input bias current (1 pA vs ±5 pA), no integrated RFI filter, same SC-70 package. | Not suitable for >100-kHz signal paths or high-Z sensor nodes requiring sub-pA bias; lacks EMI immunity in noisy industrial settings. | Select when cost sensitivity outweighs bandwidth/noise requirements and EMI environment is benign. |
| LMV321IDBVR | Higher quiescent current (80 µA vs 400 µA), lower GBW (1 MHz), no rail-to-rail input, wider offset (±3 mV), same SOT-23-5 but not SC-70 pin-compatible. | Unsuitable for battery life-critical or low-offset precision applications; incompatible pinout requires PCB redesign. | Consider only if legacy LMV321 design reuse is mandatory and performance trade-offs are acceptable. |
Compared with MCP6001T-E/OT and LMV321IDBVR, OPA316IDCKT provides 10× higher bandwidth, 5× lower input bias current, integrated RFI filtering, and guaranteed rail-to-rail input-making it the sole choice for precision, low-power, high-frequency sensor interfaces in compact SC-70 layouts.
Availability
OPA316IDCKT is available at Aetrix Electronics and suitable for portable medical sensors, automotive cabin monitoring, barcode scanner front-ends, and industrial IoT analog input modules requiring stable component supply across long production lifecycles.
Supply support for OPA316IDCKT 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 designed specifically for battery-powered instrumentation and sensor interfaces demanding high precision, ultra-low power, and robust operation in space-constrained, noise-prone environments.
FAQ
What is the maximum operating temperature range for the OPA316IDCKT?
The OPA316IDCKT is specified for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD22-A104 and supports deployment in automotive cabin electronics, industrial control enclosures, and outdoor IoT sensor nodes without thermal derating.
Does the OPA316IDCKT require external compensation for unity-gain stability?
No, the OPA316IDCKT is internally compensated and unity-gain stable across its full supply range (1.8 V to 5.5 V) and temperature range (–40°C to +125°C). No external capacitors or resistors are needed to maintain phase margin ≥60° at G = +1, simplifying layout and reducing BOM count.
Can the OPA316IDCKT operate from a single 1.8-V supply?
Yes, the OPA316IDCKT is fully specified down to 1.8 V total supply voltage (V+ to V−), with rail-to-rail input extending 200 mV beyond both rails and output swing within 15 mV of each rail at 10 kΩ load. This enables direct interface with 1.8-V microcontrollers and ADCs without level-shifting circuitry.
What is the typical input offset voltage drift of the OPA316IDCKT over temperature?
The OPA316IDCKT has a typical input offset voltage drift of ±2 µV/°C over the full –40°C to +125°C range. This low drift ensures minimal calibration drift in precision measurement systems, such as medical sensors or industrial transmitters, where long-term accuracy is critical.
Is the OPA316IDCKT pin-compatible with other SC-70 op-amps like the TLV2371 or MCP6001?
No, the OPA316IDCKT uses the standard 5-pin SC-70 pinout (V+, OUT, +IN, −IN, V−), which matches TLV2371IDCKT and MCP6001T-E/OT. However, electrical behavior differs significantly: OPA316IDCKT offers 10× higher bandwidth, lower noise, and integrated RFI filtering - direct substitution requires verification of loop stability and noise performance in the target application.
OPA316IDCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- Current - Output / Channel:
- -
- 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:
- SC-70-5
OPA316IDCKT FAQ
1.How can I place an order for OPA316IDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA316IDCKT 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 OPA316IDCKT reliable?
The price and inventory of OPA316IDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA316IDCKT is usually 5 days.
3.What payment methods are accepted for OPA316IDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA316IDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA316IDCKT?
OPA316IDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA316IDCKT 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 OPA316IDCKT?
For technical support, including OPA316IDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA316IDCKT requirements.
6.How does Aetrix verify that OPA316IDCKT is sourced from the original manufacturer or authorized distributors?
All OPA316IDCKT 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 OPA316IDCKT meets industry standards.
7.What is the process for return or replacement of OPA316IDCKT?
All OPA316IDCKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA316IDCKT, 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 OPA316IDCKT part is unused and in its original packaging.
Return procedure for OPA316IDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA316IDCKT Tags
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