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Texas Instruments OPA1654AIDR
- Part No.:
- OPA1654AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA1654AIDR.pdf
- Description:
- IC AUDIO 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,945
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Product details
Overview
OPA1654AIDR from Texas Instruments is a quad-channel, FET-input audio operational amplifier optimized for high-fidelity signal conditioning. It delivers 4.5 nV/√Hz input voltage noise at 1 kHz, 0.00005% THD+N at 1 kHz, and 10 V/µs slew rate across ±2.25 V to ±18 V supplies - enabling low-noise preamplification in professional audio mixing consoles and high-resolution DAC output stages.
For engineers reviewing the OPA1654AIDR datasheet, OPA1654AIDR pinout, OPA1654AIDR application, or OPA1654AIDR equivalent, key selection criteria include verified rail-to-rail output swing (within 800 mV of rails at 2 kΩ), channel separation of –120 dB at 1 kHz, and guaranteed operation from –40°C to +85°C in TSSOP-14 packaging.
Technical Context
The OPA1654AIDR implements a folded-cascode input stage with rail-to-rail Class AB output topology, achieving ultra-low distortion without phase reversal under common-mode overdrive. Its independent channel circuitry ensures minimal crosstalk even during overload conditions.
It operates stably at unity gain with full-power bandwidth of 1.6 MHz (at 1 VP) and supports capacitive loads up to 100 pF while maintaining ≥45° phase margin - critical for driving long cables or ADC input filters in studio-grade analog interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise density | 4.5 nV/√Hz at 1 kHz - enables 118 dB SNR in 20-kHz audio band with 600-Ω source |
| THD+N | 0.00005% at 1 kHz - meets THX Ultra2 and EBU R68 broadcast linearity requirements |
| Slew rate | 10 V/µs - supports clean 20-VPP signal reproduction up to 800 kHz without slewing distortion |
| Supply range | ±2.25 V to ±18 V - allows flexible dual-rail biasing in portable and mains-powered audio gear |
| Output drive | ±30 mA per channel - directly drives 600-Ω professional audio lines without external buffers |
| Channel separation | –120 dB at 1 kHz - preserves stereo imaging integrity in multi-channel summing amplifiers |
| Input bias current | 10 pA max - minimizes DC error in high-impedance microphone preamp feedback networks |
Pinout & Package
OPA1654AIDR is packaged in a 14-pin TSSOP (PW) with 5.00 mm × 4.40 mm body size and exposed thermal pad connected to V–. The package supports standard reflow profiles and provides 126.9°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output A/B/C/D | Amplified outputs; rail-to-rail swing within 800 mV of rails into 2-kΩ load |
| 2, 6, 9, 13 | Inverting input A/B/C/D | Differential inputs with 6 GΩ||2 pF common-mode impedance |
| 3, 5, 10, 12 | Noninverting input A/B/C/D | FET-input terminals; 10 pA max bias current enables high-Z sensor interfacing |
| 4 | V+ | Positive supply rail; accepts up to +18 V with 40-V absolute maximum rating |
| 11 | V– | Negative supply rail; connects to exposed thermal pad for enhanced heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Phase reversal protection | Prevents output inversion when inputs exceed common-mode range - eliminates clipping artifacts in non-inverting mic preamp topologies |
| Rail-to-rail output | Swings to within 800 mV of V+ and V– at 2-kΩ load - maximizes dynamic range in ±15-V systems |
| Independent channel design | Zero shared bias circuitry between channels - maintains –120 dB isolation during overload recovery |
| ESD robustness | ±2000-V HBM and ±1000-V CDM - survives handling and board-level ESD events without parameter shift |
| Unity-gain stability | Stable with gain ≥1 and 100-pF capacitive load - simplifies filter integration in active crossover networks |
Applications
| Analog Audio Mixing Console | High-Resolution DAC Output Stage |
|---|---|
Use Scenario: Summing multiple line-level sources with precise level matching and minimal crosstalk. IC Role / Device Role / Timing Role: Quad-channel precision op amp performing DC-coupled summing and level buffering before analog output drivers. Use Value: –120 dB channel separation preserves stereo image integrity; 4.5-nV/√Hz noise floor prevents degradation of 120-dB DAC dynamic range. | Use Scenario: Post-filtering and current-to-voltage conversion for delta-sigma DACs in audiophile-grade players. IC Role / Device Role / Timing Role: Low-noise I/V converter and output buffer with rail-to-rail swing capability. Use Value: 0.00005% THD+N ensures no audible distortion added to 32-bit audio; ±30-mA drive supports direct 600-Ω headphone loading. |
| Musical Instrument Preamp | Car Audio Signal Processor |
Use Scenario: High-impedance instrument input (e.g., electric guitar) with adjustable gain and tone shaping. IC Role / Device Role / Timing Role: FET-input front-end amplifier with programmable gain and low-noise active filtering. Use Value: 10-pA input bias current avoids loading passive pickups; wide ±2.25-V to ±18-V supply range accommodates battery and vehicle power variations. | Use Scenario: Multi-channel analog signal routing and level adjustment in DSP-based automotive head units. IC Role / Device Role / Timing Role: Quad-channel line driver and level translator between DSP core and power amplifier inputs. Use Value: Guaranteed –40°C to +85°C operation withstands under-dash thermal cycling; 10-V/µs slew rate preserves transient response in bass-heavy content. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA1612AIDR | Lower noise (1.1 nV/√Hz), dual-channel only, higher quiescent current (4.5 mA/ch) | Better suited for ultra-low-noise microphone preamps; not pin-compatible due to SO-8 vs TSSOP-14 | Select OPA1612AIDR only when single-digit nV/√Hz noise is mandatory and channel count permits dual configuration. |
| NE5532APDR | Higher noise (5 nV/√Hz), bipolar input, higher THD+N (0.003%), 8 mA/ch quiescent current | Legacy industrial audio; lacks rail-to-rail output and phase reversal protection | Choose NE5532APDR only for cost-sensitive legacy designs where 110-dB SNR suffices and PCB layout cannot accommodate TSSOP-14. |
Compared with OPA1654AIDR, OPA1612AIDR trades channel density and power efficiency for lower noise in dual-channel roles, while NE5532APDR offers broader temperature tolerance but sacrifices audio fidelity and modern protection features required in premium consumer and pro-audio systems.
Availability
OPA1654AIDR is available at Aetrix Electronics and suitable for analog audio mixing consoles, high-resolution DAC output stages, musical instrument preamplifiers, and car audio signal processors requiring stable component supply and consistent parametric performance across production batches.
Supply support for OPA1654AIDR 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 audio signal chain solutions.
The OPA165x product line was engineered specifically for high-fidelity audio applications demanding ultra-low noise, vanishingly low distortion, and robust rail-to-rail operation - targeting professional recording equipment, premium consumer audio, and automotive infotainment systems.
FAQ
What is the maximum capacitive load the OPA1654AIDR can drive while remaining stable?
The OPA1654AIDR maintains stability with up to 100 pF capacitive load at unity gain, as verified by phase margin ≥45° in TI's SBOS477B datasheet Figure 29. This allows direct connection to ADC input filters or long coaxial cables without external isolation resistors - preserving signal integrity in studio interface designs where the OPA1654AIDR serves as a line driver.
Does the OPA1654AIDR support single-supply operation?
Yes, the OPA1654AIDR operates from 4.5 V to 36 V total supply range, enabling true single-supply use (e.g., +5 V and GND). Its rail-to-rail output swings within 800 mV of both rails into 2 kΩ, and input common-mode range extends to (V–) + 0.5 V, making the OPA1654AIDR suitable for battery-powered portable audio devices where the OPA1654AIDR functions as a headphone amplifier buffer.
How does the OPA1654AIDR handle input overvoltage beyond the common-mode range?
The OPA1654AIDR incorporates internal phase-reversal protection that clamps the output to the nearest rail instead of inverting it when inputs exceed the linear common-mode range - a critical feature in non-inverting microphone preamp circuits. This behavior is confirmed in SBOS477B Figure 35 and ensures predictable clipping rather than signal polarity inversion in the OPA1654AIDR's audio path.
What is the thermal performance of the OPA1654AIDR in TSSOP-14 (PW) package?
The OPA1654AIDR in TSSOP-14 exhibits 126.9°C/W junction-to-ambient thermal resistance (RθJA) and 58.6°C/W junction-to-board resistance (RθJB). With 2.5 mA per channel quiescent current, power dissipation remains below 100 mW at ±15 V - allowing reliable operation in compact audio modules without forced airflow, as validated in TI's SBOS477B Section 6.5 for the OPA1654AIDR.
Is the OPA1654AIDR pin-compatible with other quad op amps like the TL074 or NE5534?
No, the OPA1654AIDR uses a unique 14-pin TSSOP pinout optimized for audio performance - differing from TL074 (SO-14 with different pin assignments) and NE5534 (8-pin DIP/SO). Its pin configuration (e.g., V– on pin 11, V+ on pin 4) is incompatible with legacy quad op amps; redesign is required when upgrading to the OPA1654AIDR for improved noise and distortion performance.
OPA1654AIDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SoundPlus™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Audio
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 2mA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
OPA1654AIDR FAQ
1.How can I place an order for OPA1654AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA1654AIDR 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 OPA1654AIDR reliable?
The price and inventory of OPA1654AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA1654AIDR is usually 5 days.
3.What payment methods are accepted for OPA1654AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA1654AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA1654AIDR?
OPA1654AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA1654AIDR 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 OPA1654AIDR?
For technical support, including OPA1654AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA1654AIDR requirements.
6.How does Aetrix verify that OPA1654AIDR is sourced from the original manufacturer or authorized distributors?
All OPA1654AIDR 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 OPA1654AIDR meets industry standards.
7.What is the process for return or replacement of OPA1654AIDR?
All OPA1654AIDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA1654AIDR, 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 OPA1654AIDR part is unused and in its original packaging.
Return procedure for OPA1654AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA1654AIDR Tags
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