My Inquiry
My Account
Texas Instruments OPA1662AIDGKRQ1
- Part No.:
- OPA1662AIDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA1662AIDGKRQ1.pdf
- Description:
- IC AUDIO 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,914
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA1662AIDGKRQ1 from Texas Instruments is a dual, bipolar-input automotive-grade audio operational amplifier designed for premium infotainment and cluster audio signal conditioning. It delivers 3.3 nV/√Hz input voltage noise density, 0.00006% THD+N at 1 kHz, 22 MHz gain-bandwidth, rail-to-rail output swing within 600 mV of rails (RL = 2 kΩ), and operates from ±1.5 V to ±18 V supplies with 1.5 mA per channel quiescent current - enabling high-fidelity analog front-end amplification in car audio head units and external amplifier modules.
For engineers reviewing the OPA1662AIDGKRQ1 datasheet, OPA1662AIDGKRQ1 pinout, OPA1662AIDGKRQ1 application, or OPA1662AIDGKRQ1 equivalent, key selection criteria include ultra-low noise performance at audio frequencies, AEC-Q100 Grade 3 qualification (–40°C to +85°C), rail-to-rail output drive into 2-kΩ loads, and verified THD+N stability across supply voltages from 3 V to 36 V.
Technical Context
The OPA1662AIDGKRQ1 employs a fully differential bipolar input stage optimized for low 1/f and broadband voltage noise, with independent channel circuitry ensuring –120 dB channel separation at 1 kHz. Its 17 V/µs slew rate and 22 MHz unity-gain bandwidth support wideband audio signal integrity and fast overload recovery (1 µs).
It features robust input protection via back-to-back diodes, rail-to-rail output stage capable of ±30 mA drive, and stable operation with capacitive loads up to 200 pF - making it suitable for driving cables, filters, and ADC inputs without phase reversal or instability in automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise Density | 3.3 nV/√Hz at 1 kHz - enables high-SNR preamplification of low-level microphone or line-level signals without degrading dynamic range. |
| THD+N | 0.00006% at 1 kHz, G = 1, VO = 3 VRMS - preserves harmonic fidelity in premium audio paths where distortion below –124 dB is required. |
| Gain-Bandwidth Product | 22 MHz (G = 1) - supports stable unity-gain buffering and high-frequency filter implementation up to ~2.7 MHz full-power bandwidth. |
| Rail-to-Rail Output Swing | Within 600 mV of supply rails (RL = 2 kΩ) - maximizes usable output voltage headroom in single-supply or asymmetric supply configurations. |
| Supply Range | ±1.5 V to ±18 V (or 3 V to 36 V total) - accommodates direct battery connection (e.g., 12 V nominal) and low-voltage microcontroller interfaces without regulation. |
| Quiescent Current | 1.5 mA per channel - balances ultra-low-noise performance with power efficiency in always-on automotive subsystems. |
| AEC-Q100 Grade | Grade 3 (–40°C to +85°C ambient) - certified for under-hood and cabin-mounted infotainment applications with validated ESD robustness (H2/HBM, C3B/CDM). |
Pinout & Package
OPA1662AIDGKRQ1 is packaged in an 8-pin VSSOP (DGK) with body size 3.00 mm × 3.00 mm, optimized for space-constrained automotive PCB layouts while maintaining thermal performance (RθJA = 225.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | High-impedance (600 kΩ common-mode) node for differential signal reference; requires symmetric layout to minimize CMRR degradation. |
| –IN A (Pin 2) | Inverting input, Channel A | Accepts feedback network for gain-setting; input bias current (600–1200 nA) necessitates matched source impedances in precision applications. |
| OUT A (Pin 1) | Output, Channel A | Capable of ±30 mA drive; stable with ≥200 pF capacitive load; rail-to-rail swing enables direct interface to SAR ADCs or Class-D gate drivers. |
| V– (Pin 4) | Negative supply | Reference for internal biasing; must remain ≥ (V+) – 40 V; supports asymmetric supplies (e.g., V+ = +25 V, V– = –5 V). |
| +IN B (Pin 5) | Noninverting input, Channel B | Electrically isolated from Channel A; enables stereo or dual-path signal processing without crosstalk (–120 dB at 1 kHz). |
| –IN B (Pin 6) | Inverting input, Channel B | Independent feedback path; same electrical characteristics as Channel A - allows identical gain configuration for matched stereo channels. |
| OUT B (Pin 7) | Output, Channel B | Identical drive capability and noise performance to OUT A; supports parallel output configurations or independent signal routing. |
| V+ (Pin 8) | Positive supply | Maximum 40 V absolute rating; PSRR > 100 dB ensures immunity to supply ripple in noisy automotive 12 V systems. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low THD+N | 0.00006% at 1 kHz enables transparent audio reproduction in premium OEM head units and external amplifiers without audible coloration. |
| Bipolar input architecture | Delivers 3.3 nV/√Hz noise and low input bias current (600–1200 nA), optimizing SNR for line-level and DAC output buffering. |
| Rail-to-rail output stage | Swings to within 600 mV of V+ and V– with 2-kΩ load, preserving maximum dynamic range in single-supply automotive audio designs. |
| Wide supply flexibility | Operates from ±1.5 V to ±18 V (3–36 V total), supporting direct connection to unregulated vehicle batteries and low-voltage MCU domains. |
| AEC-Q100 qualification | Grade 3 temperature range (–40°C to +85°C), H2-class HBM ESD (±2 kV), and C3B-class CDM ESD (±750 V) ensure reliability in harsh automotive environments. |
Applications
| Infotainment Head Unit Audio Preamp | Cluster Chime Amplifier |
|---|---|
Use Scenario: Amplifying low-level analog outputs from digital signal processors (DSPs) or DACs before feeding Class-D power stages in center-stack infotainment systems. IC Role / Device Role / Timing Role: Dual-channel, low-noise, unity-gain buffer and level-shifter ensuring signal integrity across temperature and supply variations. Use Value: 3.3 nV/√Hz noise and 0.00006% THD+N preserve wide dynamic range and harmonic accuracy, critical for multi-band equalization and spatial audio rendering. | Use Scenario: Driving piezoelectric or small dynamic speakers for driver alerts, turn-signal chimes, and ADAS notification tones in instrument clusters. IC Role / Device Role / Timing Role: Single-supply (5 V or 12 V) audio amplifier delivering clean, low-distortion output without external DC-blocking capacitors. Use Value: Rail-to-rail output swing and ±30 mA drive enable direct speaker coupling with minimal BOM count and no clipping at peak chime amplitudes. |
| Body Control Module (BCM) Sensor Signal Conditioning | HEV/EV Motor Control Feedback Amplifier |
Use Scenario: Amplifying and filtering analog sensor signals (e.g., cabin temperature, door lock status, ambient light) in BCMs requiring long-term stability and EMC resilience. IC Role / Device Role / Timing Role: Precision dual op amp providing gain, filtering, and impedance transformation for mixed-signal microcontroller ADC inputs. Use Value: Low offset drift (2–8 µV/°C) and high CMRR (>100 dB) ensure accurate sensor readings across automotive temperature extremes. | Use Scenario: High-speed current sensing in motor phase legs of hybrid/electric vehicle inverters, where fast transient response and low noise are essential for peak current mode control. IC Role / Device Role / Timing Role: High-slew-rate (17 V/µs), wide-bandwidth (22 MHz) amplifier for shunt-based current measurement with minimal phase lag. Use Value: 1 µs overload recovery and stable operation with capacitive loads improve closed-loop control bandwidth and fault detection speed in safety-critical traction systems. |
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), higher IQ (3.6 mA/ch), non-automotive grade (no AEC-Q100), SOIC/VSSOP only | Targeted at studio-grade audio equipment; lacks automotive qualification and extended temperature validation | Select when ultra-low noise dominates over automotive compliance and power budget permits higher IQ. |
| LM4562MA/NOPB | Higher THD+N (0.00003% typical but not guaranteed over temp), no AEC-Q100, wider supply (±2.5 V to ±17 V), higher IQ (3.6 mA/ch) | Designed for consumer audio; lacks automotive ESD ratings and temperature assurance for under-dash deployment | Choose for cost-sensitive non-automotive audio systems where AEC-Q100 is not mandated. |
Compared with OPA1662AIDGKRQ1, OPA1612AIDR offers superior noise performance but sacrifices automotive qualification and power efficiency, while LM4562MA/NOPB provides competitive THD+N in commercial audio but lacks the validated thermal, EMC, and reliability envelope required for automotive production.
Availability
OPA1662AIDGKRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, instrument cluster chime amplifiers, and body control module sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA1662AIDGKRQ1 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 deep expertise in automotive electronics, power management, and high-performance signal chain solutions.
The OPA1662AIDGKRQ1 belongs to TI's automotive-qualified precision audio op amp product line, engineered specifically for low-noise, low-distortion signal conditioning in infotainment, cluster, and ADAS subsystems operating under demanding environmental conditions.
FAQ
What is the maximum supply voltage rating for OPA1662AIDGKRQ1?
The OPA1662AIDGKRQ1 has an absolute maximum supply voltage rating of 40 V between V+ and V– terminals. It operates reliably across a recommended range of ±1.5 V to ±18 V (or 3 V to 36 V total), including asymmetric configurations such as +25 V / –5 V. Exceeding 40 V risks permanent damage per Absolute Maximum Ratings in the datasheet.
Does OPA1662AIDGKRQ1 support single-supply operation?
Yes, OPA1662AIDGKRQ1 supports true single-supply operation from 3 V to 36 V total supply range. Its rail-to-rail output stage swings within 600 mV of both supply rails with 2-kΩ load, and its input common-mode range extends from (V–) + 0.5 V to (V+) – 1 V - enabling use in 5 V or 12 V automotive systems without dual-rail generation.
What is the AEC-Q100 qualification status of OPA1662AIDGKRQ1?
OPA1662AIDGKRQ1 is fully AEC-Q100 qualified as Grade 3, with ambient operating temperature range of –40°C to +85°C, H2-class HBM ESD rating (±2000 V), and C3B-class CDM ESD rating (±750 V). These qualifications are documented in the official TI production datasheet SLOS805C and verified through TI's automotive qualification program.
Can OPA1662AIDGKRQ1 drive capacitive loads?
Yes, OPA1662AIDGKRQ1 is specified to drive capacitive loads up to 200 pF while maintaining stability and phase margin > 45°, as confirmed in Typical Characteristics (Figure 31). For larger loads, external isolation resistors or feedback network adjustments may be required to prevent peaking or oscillation.
How does the noise performance of OPA1662AIDGKRQ1 compare at different source impedances?
OPA1662AIDGKRQ1 achieves optimal noise performance with source impedances < 1 kΩ due to its low 3.3 nV/√Hz voltage noise dominating over current noise (1 pA/√Hz). At higher source impedances, current noise contribution increases - e.g., at RS = 10 kΩ, total input-referred noise rises significantly, making lower-noise alternatives like OPA1612 more suitable for high-Z sensor interfaces.
OPA1662AIDGKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Audio
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 17V/µs
- Gain Bandwidth Product:
- 22 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 600 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 1.5mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA1662AIDGKRQ1 FAQ
1.How can I place an order for OPA1662AIDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA1662AIDGKRQ1 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 OPA1662AIDGKRQ1 reliable?
The price and inventory of OPA1662AIDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA1662AIDGKRQ1 is usually 5 days.
3.What payment methods are accepted for OPA1662AIDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA1662AIDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA1662AIDGKRQ1?
OPA1662AIDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA1662AIDGKRQ1 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 OPA1662AIDGKRQ1?
For technical support, including OPA1662AIDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA1662AIDGKRQ1 requirements.
6.How does Aetrix verify that OPA1662AIDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA1662AIDGKRQ1 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 OPA1662AIDGKRQ1 meets industry standards.
7.What is the process for return or replacement of OPA1662AIDGKRQ1?
All OPA1662AIDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA1662AIDGKRQ1, 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 OPA1662AIDGKRQ1 part is unused and in its original packaging.
Return procedure for OPA1662AIDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA1662AIDGKRQ1 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
