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Texas Instruments OPA4364AIPWT
- Part No.:
- OPA4364AIPWT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4364AIPWT.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,699
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Product details
Overview
OPA4364AIPWT from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for low-voltage, single-supply operation (1.8 V to 5.5 V). It delivers 7 MHz gain-bandwidth, 5 V/µs slew rate, 90 dB typical CMRR, ±10 pA input bias current, and 500 µV maximum input offset voltage - enabling high-fidelity signal conditioning in battery-powered sensor interfaces and portable audio front-ends.
For engineers reviewing the OPA4364AIPWT datasheet, OPA4364AIPWT pinout, OPA4364AIPWT application, or OPA4364AIPWT equivalent, key selection considerations include its 14-pin TSSOP package, quad-channel integration with independent inputs/outputs, rail-to-rail I/O swing within 10 mV of supply rails, and guaranteed operation from –40°C to +125°C for industrial and automotive subsystems.
Technical Context
The OPA4364AIPWT uses a CMOS input stage with no crossover distortion, delivering consistent common-mode rejection across the full input range - critical for driving SAR ADCs without degrading differential linearity or THD. Its unity-gain stable architecture supports active filter, transimpedance, and microphone preamplifier configurations without external compensation.
All four amplifiers share a common supply domain (V+ on Pin 4, V– on Pin 11) and operate independently with no internal enable/shutdown control - distinguishing it from the OPA363 family. Input common-mode range extends 0.1 V beyond both rails, and output swing reaches within 10 mV of each rail at 10 kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - enables direct interface with Li-ion, 3.3 V, and 5 V logic domains without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports stable closed-loop gain ≥10 up to ~700 kHz, suitable for anti-aliasing and reconstruction filters. |
| Slew Rate | 5 V/µs - ensures <1.5 µs settling to 0.01% for 4-V step inputs, critical for fast data acquisition front-ends. |
| Input Offset Voltage | ≤500 µV (max) - reduces DC error in precision sensor amplification (e.g., bridge-based pressure or temperature sensors). |
| CMRR | 90 dB (typ), 74 dB (min) - maintains accuracy when amplifying small differential signals in noisy industrial environments. |
| Quiescent Current | 750 µA per channel (max) - enables ultra-low-power operation in always-on monitoring systems with four parallel signal paths. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, motor control feedback, and industrial PLC analog I/O modules. |
Pinout & Package
OPA4364AIPWT is packaged in a 14-pin TSSOP (PW package), body size 5.00 mm × 4.40 mm, with exposed pad for thermal enhancement. Pin numbering follows standard JEDEC TSSOP convention (Pin 1 = VOUT A, Pin 14 = VOUT D).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT A | Output of Channel A - drives downstream ADC input or next-stage filter; rail-to-rail swing supports full-scale utilization of 12-bit+ converters. |
| 2 | –IN A | Inverting input of Channel A - used in transimpedance or inverting gain configurations; low 2 pF differential capacitance minimizes phase margin loss. |
| 3 | +IN A | Noninverting input of Channel A - accepts high-impedance sensor signals (e.g., thermocouple, piezo) with ±10 pA bias current limiting error. |
| 4 | V+ | Positive power supply - shared by all four amplifiers; must be decoupled locally with ≥100 nF ceramic capacitor. |
| 5 | +IN B | Noninverting input of Channel B - electrically isolated from other channels; enables simultaneous multi-sensor acquisition without crosstalk. |
| 6 | –IN B | Inverting input of Channel B - identical electrical characteristics to Pin 2; supports matched dual-channel instrumentation topologies. |
| 7 | VOUT B | Output of Channel B - independent output node; allows separate gain/offset tuning per channel in multi-axis sensor systems. |
| 8 | VOUT C | Output of Channel C - provides third analog path without external op-amp count increase, reducing board area and BOM cost. |
| 9 | –IN C | Inverting input of Channel C - same layout-sensitive routing requirements as Pins 2 and 6; requires symmetric trace lengths for matched performance. |
| 10 | +IN C | Noninverting input of Channel C - supports true differential input pairs when paired with Pin 9 and external resistors. |
| 11 | V– | Negative power supply - ground reference for single-supply operation; must be low-impedance return path for all four channels. |
| 12 | +IN D | Noninverting input of Channel D - completes quad-channel set; enables 4-channel simultaneous sampling in data loggers or audio mixers. |
| 13 | –IN D | Inverting input of Channel D - matches input capacitance and bias behavior of other channels for system-level calibration consistency. |
| 14 | VOUT D | Output of Channel D - fully buffered output; capable of driving 10 kΩ loads while maintaining rail-to-rail swing and low THD+N. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Input common-mode range extends 0.1 V beyond V– and V+, output swings within 10 mV of both rails - maximizes dynamic range in 1.8–5.5 V systems. |
| No phase reversal | CMOS input stage eliminates output polarity inversion during overdrive - prevents latch-up or false triggering in comparator-like applications. |
| Low input bias current | ±10 pA max at 25°C - enables high-Z sensor interfacing (e.g., pH electrodes, photodiodes) without significant DC error or drift. |
| High CMRR without crossover | 90 dB typical CMRR maintained across full input range - preserves signal integrity in unshielded industrial wiring environments. |
| Unity-gain stable | Operates stably at G = 1 without external compensation - simplifies design of voltage followers, active filters, and buffer stages. |
Applications
| Medical Sensor Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying low-level biopotential signals (ECG, EMG) from dry electrodes in portable diagnostic devices. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end providing simultaneous gain, filtering, and level-shifting for four electrode pairs. Use Value: 500 µV max offset and 90 dB CMRR suppress common-mode interference from AC mains and RF sources, improving SNR by >15 dB vs legacy amplifiers. | Use Scenario: Conditioning 4–20 mA loop sensor outputs (pressure, flow, temperature) in distributed I/O modules. IC Role / Device Role / Timing Role: Four independent transimpedance and voltage-output buffers converting current loops to ratiometric ADC inputs. Use Value: Rail-to-rail I/O enables full 0–5 V span utilization with 3.3 V microcontrollers, eliminating need for external level shifters or charge pumps. |
| Automotive Cabin Microphone Array | Portable Audio Preamp |
Use Scenario: Preamplifying electret microphone outputs in noise-cancelling automotive infotainment systems with 4-mic beamforming. IC Role / Device Role / Timing Role: Quad mic preamp with matched gain and phase response across all channels for coherent digital beamsteering. Use Value: 7 MHz GBW and 5 V/µs slew rate support wideband acoustic capture (20 Hz–20 kHz) with <0.002% THD+N at 1 Vrms output. | Use Scenario: Low-noise signal conditioning in battery-powered USB-C audio interfaces supporting 24-bit/192 kHz recording. IC Role / Device Role / Timing Role: Dual-channel line-level preamp and dual-channel headphone driver buffer in compact form factor. Use Value: 17 nV/√Hz input voltage noise density and 10 µVPP 0.1–10 Hz noise ensure clean audio capture without audible hiss at 20 dB gain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4340UA | Lower GBW (1 MHz), higher offset (1.5 mV max), but includes shutdown pins and rail-to-rail output only (not input). | Not suitable for high-speed or precision DC-coupled sensor front-ends requiring full rail-to-rail input range. | Select when ultra-low quiescent current (<200 µA) and shutdown capability outweigh bandwidth and offset requirements. |
| LMV324IDR | Wider supply range (2.7–5.5 V), lower cost, but lower CMRR (65 dB min), higher offset (3 mV max), and slower slew rate (1 V/µs). | Acceptable for non-critical consumer-grade signal buffering where precision and speed are secondary to cost and availability. | Select for cost-sensitive volume production where 7 MHz bandwidth and 90 dB CMRR are not required. |
Compared with OPA4364AIPWT, OPA4340UA trades bandwidth and precision for power savings and integrated shutdown, while LMV324IDR offers broader voltage compatibility and lower unit cost at the expense of linearity, speed, and noise performance - making OPA4364AIPWT optimal for high-fidelity, multi-channel analog signal chains demanding consistent rail-to-rail operation and industrial temperature reliability.
Availability
OPA4364AIPWT is available at Aetrix Electronics and suitable for medical diagnostics equipment, industrial process controllers, automotive cabin audio systems, and portable test instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for OPA4364AIPWT 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 op-amps and signal chain solutions.
The OPAx364 family was designed specifically for low-voltage, high-accuracy signal conditioning in space-constrained, battery-operated, and thermally demanding applications - emphasizing rail-to-rail I/O, low noise, and robust CMRR without phase reversal.
FAQ
What is the maximum capacitive load the OPA4364AIPWT can drive while remaining stable?
The OPA4364AIPWT is unity-gain stable and characterized for capacitive loads up to 100 pF with minimal overshoot (<10%) and 0.01% settling in ≤1.5 µs. For loads >100 pF, external series resistance (≥50 Ω) at the output is recommended to maintain phase margin. The OPA4364AIPWT does not require isolation resistors for typical 10 kΩ ADC input loads.
Does the OPA4364AIPWT support true single-supply operation down to 1.8 V?
Yes, the OPA4364AIPWT is fully specified from 1.8 V to 5.5 V single supply, with all key parameters - including input common-mode range (extending 0.1 V beyond rails), output swing (within 10 mV of rails), and 7 MHz GBW - guaranteed across this range. At 1.8 V, quiescent current remains ≤750 µA per channel.
How does the OPA4364AIPWT handle input overvoltage conditions?
The OPA4364AIPWT input terminals are diode-clamped to the supply rails. Input signals exceeding (V–) – 0.5 V or (V+) + 0.5 V must be current-limited to ≤10 mA to prevent damage. This clamping protects against ESD and transient overvoltage but does not support continuous operation outside the absolute maximum rating range.
Is the OPA4364AIPWT pin-compatible with other quad op-amps in TSSOP-14 packages?
No, the OPA4364AIPWT has a unique pinout optimized for quad-channel symmetry (e.g., V+ on Pin 4, V– on Pin 11). It is not pin-compatible with LM324, TLV2464, or MCP6004 in TSSOP-14. Layout reuse requires verification of signal routing, power pin placement, and thermal pad connection per TI's OPA4364AIPWT datasheet Figure 7.
What is the typical THD+N performance of the OPA4364AIPWT at audio frequencies?
The OPA4364AIPWT achieves 0.002% THD+N at 20 Hz–20 kHz with 5 V supply, G = 1, and 1 Vrms output into 10 kΩ. This performance is enabled by its 7 MHz GBW, 5 V/µs slew rate, and low 17 nV/√Hz input voltage noise - making it suitable for high-resolution audio preamplification and line-driver applications.
OPA4364AIPWT 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:
- 5V/µs
- Gain Bandwidth Product:
- 7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.1mA (x4 Channels)
- Current - Output / Channel:
- 85 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
OPA4364AIPWT FAQ
1.How can I place an order for OPA4364AIPWT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4364AIPWT 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 OPA4364AIPWT reliable?
The price and inventory of OPA4364AIPWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4364AIPWT is usually 5 days.
3.What payment methods are accepted for OPA4364AIPWT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4364AIPWT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4364AIPWT?
OPA4364AIPWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4364AIPWT 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 OPA4364AIPWT?
For technical support, including OPA4364AIPWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4364AIPWT requirements.
6.How does Aetrix verify that OPA4364AIPWT is sourced from the original manufacturer or authorized distributors?
All OPA4364AIPWT 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 OPA4364AIPWT meets industry standards.
7.What is the process for return or replacement of OPA4364AIPWT?
All OPA4364AIPWT units undergo pre-shipment inspection (PSI). If there is an issue with OPA4364AIPWT, 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 OPA4364AIPWT part is unused and in its original packaging.
Return procedure for OPA4364AIPWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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