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Texas Instruments OPA4316IPWR
- Part No.:
- OPA4316IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4316IPWR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,732
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Product details
Overview
OPA4316IPWR from Texas Instruments is a quad rail-to-rail input/output (RRIO), low-noise, low-power 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.
For engineers reviewing the OPA4316IPWR datasheet, OPA4316IPWR pinout, OPA4316IPWR application, or OPA4316IPWR equivalent, this device supports high-accuracy sensor interfaces, portable medical instrumentation, automotive cabin sensors, and low-voltage active filters where rail-to-rail swing, low power, and EMI robustness are critical selection criteria.
Technical Context
The OPA4316IPWR integrates four independent, unity-gain stable amplifiers in a single TSSOP-14 package, each featuring internal RFI-EMI filtering, no phase reversal under overdrive, and 4-kV HBM ESD protection. Its CMOS input stage enables ultra-low input bias current (±5 pA typical), supporting high-impedance source applications such as photodiode transimpedance stages and piezoelectric sensor buffers.
Designed for wide supply flexibility (1.8 V to 5.5 V), the device maintains rail-to-rail input common-mode range down to (V–) – 0.2 V and output swing within 15 mV of rails (at 1.8 V, RL = 10 kΩ, –40°C to +125°C), while delivering 6 V/µs slew rate and 1-µs 0.1% settling time - balancing speed, precision, and efficiency in mixed-signal front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 10 MHz - supports stable closed-loop operation up to audio and ultrasonic frequencies without external compensation. |
| Quiescent Current per Channel | 400 µA - enables four-channel amplification with only 1.6 mA total supply current, ideal for always-on sensor nodes. |
| Input Voltage Noise Density | 11 nV/√Hz at 1 kHz - preserves signal integrity in low-level analog front-ends like thermopile or strain gauge interfaces. |
| Input Bias Current | ±5 pA - allows use with MΩ-range source impedances without significant offset drift or gain error. |
| Offset Voltage | ±0.5 mV (typical) - ensures <0.1% gain error in 5-V full-scale 12-bit systems without trimming. |
| Rail-to-Rail I/O | Input extends 0.2 V beyond rails; output swings to within 15 mV of rails at 1.8 V - maximizes dynamic range in low-voltage ADC drivers. |
| Supply Voltage Range | 1.8 V to 5.5 V - interoperable with Li-ion, coin-cell, and standard logic supplies without level-shifting. |
Pinout & Package
TSSOP-14 (PW) package: 4.40 mm × 5.00 mm body, 0.65-mm pitch, exposed thermal pad not present (non-power-dissipation optimized variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 10 kΩ with rail-to-rail swing and 6 V/µs slew rate. |
| 2 | –IN A | Inverting input of Amplifier A - differential pair node with ±5 pA bias current and 10¹⁶ Ω || 2 pF impedance. |
| 3 | +IN A | Noninverting input of Amplifier A - accepts common-mode voltages from (V–) – 0.2 V to (V+) + 0.2 V (at VS ≥ 2.5 V). |
| 4 | V– | Negative supply or ground reference - shared return path for all four amplifiers; must be low-impedance for PSRR >86 dB. |
| 5 | +IN B | Noninverting input of Amplifier B - electrically isolated from A/C/D; identical specs and layout-sensitive routing required. |
| 6 | –IN B | Inverting input of Amplifier B - matched to Pin 2; channel separation >100 dB prevents crosstalk in multi-channel filters. |
| 7 | OUT B | Amplifier B output - independent output stage; no internal connection to OUT A/C/D. |
| 8 | V+ | Positive supply - powers all four amplifiers; bypassing with 100 nF ceramic capacitor at pin reduces PSRR degradation above 10 kHz. |
| 9 | +IN C | Noninverting input of Amplifier C - third channel input; requires separate PCB trace routing to avoid coupling from A/B outputs. |
| 10 | –IN C | Inverting input of Amplifier C - matched performance to Pins 2 and 6; supports individual feedback networks per channel. |
| 11 | OUT C | Amplifier C output - capable of driving capacitive loads up to 100 pF with 1.66-µs 0.01% settling. |
| 12 | +IN D | Noninverting input of Amplifier D - fourth channel input; shares V+ and V– rails but has independent input/output nodes. |
| 13 | –IN D | Inverting input of Amplifier D - supports differential configurations with matched offset and drift across all channels. |
| 14 | OUT D | Amplifier D output - fully specified for 10-kΩ load, 1.8-V supply, and –40°C to +125°C ambient. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply range in single-ended ADC driver and sensor buffer topologies. |
| Integrated RFI-EMI filter | Rejects >30 dB of 100-MHz–2-GHz RF interference without external ferrite beads or RC snubbers. |
| No phase reversal on overdrive | Prevents latch-up and system instability when inputs exceed common-mode range during transient events. |
| 4-kV HBM ESD protection | Eliminates need for external TVS diodes in handheld and automotive interior sensor modules. |
| Extended temperature range | Specified from –40°C to +125°C - suitable for engine bay sensors, industrial PLC I/O, and outdoor IoT nodes. |
Applications
| Portable Medical Pulse Oximeter | Automotive Cabin Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifies weak DC-coupled photodiode current from red/IR LEDs through transimpedance configuration. IC Role / Device Role / Timing Role: Quad OPA4316IPWR provides four matched, low-noise, low-bias-current amplifiers for simultaneous red/IR channel processing and reference buffering. Use Value: ±5-pA input bias current minimizes dark-current-induced offset; 11-nV/√Hz noise preserves SNR in sub-µA photocurrent measurements. |
Use Scenario: Conditions analog output from NTC thermistor bridge in HVAC control module operating at 125°C ambient. IC Role / Device Role / Timing Role: OPA4316IPWR acts as precision instrumentation amplifier front-end with rail-to-rail output driving 12-bit SAR ADC. Use Value: ±0.5-mV offset and 70-dB CMRR at dc ensure <0.1°C measurement accuracy across full temperature range. |
| Barcode Scanner Signal Chain | Low-Power Active Anti-Aliasing Filter |
Use Scenario: Amplifies fast-rise-time analog pulses from CMOS image sensor during laser line scanning. IC Role / Device Role / Timing Role: One OPA4316IPWR channel serves as high-speed comparator preamplifier; others condition reference and bias voltages. Use Value: 10-MHz GBW and 6-V/µs slew rate resolve 100-ns pulse edges without distortion in 300-ppi decoding. |
Use Scenario: Implements 2nd-order Sallen-Key low-pass filter before 1-MSPS SAR ADC in battery-powered data logger. IC Role / Device Role / Timing Role: OPA4316IPWR provides unity-gain stable, low-noise, low-power op-amp core for filter topology. Use Value: 400-µA/channel quiescent current limits total filter power to <1.6 mA, extending coin-cell life to >2 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4314IPWR | Lower 3-MHz GBW, 150-µA/ch IQ, higher 16-nV/√Hz noise; same RRIO, 1.8–5.5-V supply, and TSSOP-14 package. | Better suited for ultra-low-power, sub-audio applications (e.g., CO₂ sensor baseline correction) where bandwidth <3 MHz suffices. | Select OPA4314IPWR when power budget is tighter than 1.6 mA and 10-MHz bandwidth is unnecessary. |
| LMV844QMA/NOPB | Higher 1200-µA/ch IQ, 22-nV/√Hz noise, 4.2-MHz GBW; AEC-Q100 qualified; SOIC-14 package only (no TSSOP option). | Targeted at automotive under-hood applications requiring qualification; unsuitable for space-constrained portable designs due to larger SOIC footprint. | Choose LMV844QMA/NOPB only if AEC-Q100 compliance is mandatory and board area permits SOIC-14. |
Compared with OPA4316IPWR, OPA4314IPWR trades bandwidth and noise for lower power, while LMV844QMA/NOPB adds automotive qualification at the cost of higher noise, current, and package size - making OPA4316IPWR the optimal balance for unqualified, high-precision, low-power portable systems.
Availability
OPA4316IPWR is available at Aetrix Electronics and suitable for battery-powered instruments, sensor signal conditioning, and automotive cabin electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA4316IPWR 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 - including OPA4316IPWR - was designed specifically for cost-sensitive, battery-operated applications demanding rail-to-rail performance, low noise, and robust EMI immunity without sacrificing bandwidth or precision.
FAQ
What is the maximum operating temperature range for the OPA4316IPWR?
The OPA4316IPWR is fully specified from –40°C to +125°C ambient temperature, with electrical characteristics guaranteed across this range. Its design includes thermal protection features and stable biasing that maintain offset drift ≤±10 µV/°C and open-loop gain ≥86 dB even at maximum junction temperature, making it suitable for under-dash automotive and industrial control environments where ambient heat exceeds 85°C.
Does the OPA4316IPWR support true rail-to-rail input at 1.8-V supply?
Yes, the OPA4316IPWR supports rail-to-rail input common-mode range down to (V–) – 0.2 V and up to (V+) at 1.8-V supply. This allows direct interfacing with 0-V to 1.8-V sensors and digital logic without level-shifting circuitry. The input stage remains linear and exhibits no phase reversal or increased bias current when driven to the rails - a key differentiator versus older CMOS op-amps.
Can the OPA4316IPWR drive a 100-pF capacitive load without oscillation?
Yes, the OPA4316IPWR is unity-gain stable and characterized to drive up to 100-pF capacitive loads with 1.66-µs 0.01% settling time and no peaking or ringing. Its internal compensation and RFI-EMI filter provide phase margin ≥60° into 100-pF loads, eliminating the need for external isolation resistors in ADC input buffers or cable-driving applications.
How does the OPA4316IPWR's input bias current compare to bipolar-input op-amps?
The OPA4316IPWR's ±5-pA typical input bias current is over 1000× lower than typical bipolar-input op-amps (e.g., LM324: ~45 nA). This enables accurate amplification of signals from high-impedance sources like pH electrodes, piezoresistive sensors, and photodiodes without introducing significant offset error or requiring guard traces - a critical advantage in precision analog front-ends.
Is the OPA4316IPWR pin-compatible with other devices in the OPAx316 family?
No - the OPA4316IPWR (TSSOP-14) is not pin-compatible with OPA316 (SC-70/SOT-23), OPA2316 (MSOP/DFN/SOIC-8), or OPA2316S (MSOP/QFN-10). Each variant has distinct pin counts, layouts, and channel counts. However, all share identical electrical specifications and functional behavior per channel, allowing schematic reuse with package-specific layout adaptation.
OPA4316IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-TSSOP
OPA4316IPWR FAQ
1.How can I place an order for OPA4316IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4316IPWR 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 OPA4316IPWR reliable?
The price and inventory of OPA4316IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4316IPWR is usually 5 days.
3.What payment methods are accepted for OPA4316IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4316IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4316IPWR?
OPA4316IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4316IPWR 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 OPA4316IPWR?
For technical support, including OPA4316IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4316IPWR requirements.
6.How does Aetrix verify that OPA4316IPWR is sourced from the original manufacturer or authorized distributors?
All OPA4316IPWR 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 OPA4316IPWR meets industry standards.
7.What is the process for return or replacement of OPA4316IPWR?
All OPA4316IPWR units undergo pre-shipment inspection (PSI). If there is an issue with OPA4316IPWR, 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 OPA4316IPWR part is unused and in its original packaging.
Return procedure for OPA4316IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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