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Texas Instruments TL972QDRQ1
- Part No.:
- TL972QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL972QDRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,343
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Product details
Overview
TL972QDRQ1 from Texas Instruments is a dual-channel, rail-to-rail output operational amplifier qualified for automotive applications (AEC-Q100 Grade 1, –40°C to +125°C), featuring 4 nV/√Hz input voltage noise, 12 MHz gain bandwidth, and ±2.4 V output swing at ±2.5 V supply - used in audio preamplification stages of infotainment head units and sensor signal conditioning in ADAS front-end modules.
For engineers reviewing the TL972QDRQ1 datasheet, TL972QDRQ1 pinout, TL972QDRQ1 application, or TL972QDRQ1 equivalent, key selection criteria include low-noise audio performance, rail-to-rail output drive into 2 kΩ loads, automotive temperature compliance, and SOIC-8 package compatibility with legacy PCB layouts.
Technical Context
The TL972QDRQ1 implements a bipolar-input, fully differential op-amp architecture optimized for low-noise, low-distortion operation across 2.7 V to 12 V single-supply or ±1.35 V to ±6 V dual-supply configurations. Its output stage delivers rail-to-rail swing with 5 V/μs slew rate and maintains stability driving 100 pF capacitive loads.
Internal ESD protection meets JESD 22 (2000-V HBM, 200-V MM, 1500-V CDM), and latch-up immunity exceeds 100 mA per JESD 78 Class II - critical for automotive subsystems exposed to load-dump transients and board-level ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V single-supply or ±1.35 V to ±6 V dual-supply - supports direct integration into 3.3 V or 5 V automotive domains without level-shifting. |
| Input Voltage Noise | 4 nV/√Hz at 100 kHz - enables high-fidelity amplification of weak sensor signals (e.g., piezoelectric knock sensors) without degrading SNR. |
| Gain Bandwidth Product | 12 MHz at 25°C - sustains stable unity-gain buffer operation up to ~10 MHz with 2 kΩ load, suitable for wideband analog front-ends. |
| Output Swing | ±2.4 V at ±2.5 V supply - delivers >96% of full rail-to-rail dynamic range, maximizing ADC input utilization in 12-bit+ data acquisition systems. |
| Total Harmonic Distortion | 0.003% at 1 kHz, AV = –1, RL = 10 kΩ - meets THD requirements for premium automotive audio line drivers and microphone preamps. |
| Common-Mode Input Range | VCC– + 1.15 V to VCC+ – 1.15 V - allows direct sensing of signals referenced to mid-supply in single-supply configurations. |
| Quiescent Current | 2.8 mA per amplifier (max) - enables dual-amplifier operation within <6 mA total, supporting always-on low-power vehicle subsystems. |
Pinout & Package
TL972QDRQ1 is housed in an 8-pin SOIC (D) package (JEDEC MS-012, variation AA), 3.9 mm × 4.9 mm footprint, 1.75 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting output of Channel 1 - drives external load directly; rail-to-rail capable with 5 V/μs slew rate. |
| 2 | IN1– | Inverting input of Channel 1 - accepts feedback network connection; common-mode range extends to within 1.15 V of rails. |
| 3 | IN1+ | Non-inverting input of Channel 1 - high-impedance node (IIB = 750 nA max); matched to IN1– for precision DC-coupled gain stages. |
| 4 | VCC– | Negative supply pin - connects to ground (single-supply) or negative rail (dual-supply); decoupling capacitor required within 1 cm. |
| 5 | IN2+ | Non-inverting input of Channel 2 - electrically isolated from Channel 1; supports independent biasing for differential sensor interfaces. |
| 6 | IN2– | Inverting input of Channel 2 - paired with IN2+ for second independent gain path; same CMRR (85 dB typ) as Channel 1. |
| 7 | OUT2 | Inverting output of Channel 2 - identical AC/DC specs to OUT1; enables stereo audio buffering or dual-sensor signal conditioning. |
| 8 | VCC+ | Positive supply pin - accepts 2.7–12 V; PSRR = 70 dB (typ) ensures immunity to power rail ripple in noisy automotive environments. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers ±2.4 V into 2 kΩ at ±2.5 V supply - preserves full dynamic range for 12-bit ADCs without external level-shifting circuitry. |
| Ultra-low distortion | 0.003% THD at 1 kHz enables clean amplification in premium audio signal chains, including digital radio tuners and active noise cancellation circuits. |
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C) with 100 mA latch-up immunity - certified for engine bay, cabin, and ADAS module deployment. |
| Low-noise architecture | 4 nV/√Hz input voltage noise at 100 kHz - reduces audible hiss in microphone preamps and improves resolution in low-level thermocouple amplifiers. |
| Stable capacitive drive | Maintains ≥60° phase margin driving 100 pF loads - eliminates need for isolation resistors when interfacing with long traces or ADC input capacitance. |
Applications
| Infotainment Audio Preamp | ADAS Radar Signal Conditioning |
|---|---|
Use Scenario: Amplifying low-level analog outputs from digital radio receivers and Bluetooth audio codecs before ADC sampling in automotive head units. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing gain, filtering, and rail-to-rail output drive to 12-bit SAR ADC inputs. Use Value: 4 nV/√Hz noise floor and 0.003% THD preserve audio fidelity across 20 Hz–20 kHz band; dual-channel layout minimizes PCB area vs. discrete solutions. |
Use Scenario: Conditioning intermediate-frequency (IF) signals from 77 GHz radar transceivers prior to digitization in autonomous driving ECUs. IC Role / Device Role / Timing Role: Low-noise, wideband amplifier for IF chain gain staging and anti-alias filtering interface. Use Value: 12 MHz GBWP supports >5 MHz IF bandwidth; rail-to-rail output ensures maximum ADC utilization without clipping during fast chirp transitions. |
| Engine Knock Sensor Interface | Body Control Module Sensor Hub |
Use Scenario: Amplifying high-impedance piezoelectric knock sensor signals in gasoline engine control units for real-time combustion timing adjustment. IC Role / Device Role / Timing Role: Charge-sensitive preamplifier with high input impedance and low input bias current (150 nA max). Use Value: 4 nV/√Hz noise density resolves sub-mV knock events; AEC-Q100 qualification ensures reliability under thermal cycling and vibration stress. |
Use Scenario: Multiplexing and conditioning analog outputs from multiple cabin sensors (temperature, humidity, light) in centralized body control modules. IC Role / Device Role / Timing Role: Dual-channel general-purpose amplifier for DC-coupled sensor signal buffering and level translation. Use Value: 2.7 V minimum supply enables operation from degraded 3.3 V rail; 2.8 mA per channel supports always-on monitoring with <6 mA total quiescent draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2376QDRQ1 | Lower noise (2.8 nV/√Hz), higher quiescent current (760 µA per amp), no rail-to-rail output (clips 100 mV from rails) | Better suited for ultra-low-noise precision instrumentation; unsuitable where full rail-to-rail swing is required for ADC headroom. | Select OPA2376QDRQ1 only when noise dominates over output swing and power budget allows +150% IQ increase. |
| LMV722QDRQ1 | Higher noise (10 nV/√Hz), lower GBWP (1.5 MHz), rail-to-rail input/output, lower supply voltage (2.7 V min) | Acceptable for cost-sensitive non-audio sensor buffers but fails THD and bandwidth requirements in audio or radar IF paths. | Choose LMV722QDRQ1 only for simple DC-coupled sensor interfaces where bandwidth <2 MHz and THD >0.01% are acceptable. |
Compared with TL972QDRQ1, OPA2376QDRQ1 trades rail-to-rail output and lower power for superior noise performance, while LMV722QDRQ1 sacrifices bandwidth and noise floor to reduce cost - making TL972QDRQ1 the optimal balance for automotive audio and radar signal chains requiring simultaneous low noise, rail-to-rail swing, and 12 MHz bandwidth.
Availability
TL972QDRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS radar modules, and engine control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL972QDRQ1 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 automotive-grade product development and manufacturing expertise.
The TL97x-Q1 family was designed specifically for automotive signal conditioning applications demanding low noise, rail-to-rail output, and AEC-Q100 qualification - targeting infotainment, ADAS, and powertrain subsystems.
FAQ
What is the operating temperature range for TL972QDRQ1?
The TL972QDRQ1 is qualified for automotive applications per AEC-Q100 Grade 1, with a guaranteed operating free-air temperature range of –40°C to +125°C. This specification is validated across all electrical parameters in the datasheet, including input offset voltage drift (5 µV/°C typ), GBWP (12 MHz min at 25°C, derated per curve), and output drive capability. The TL972QDRQ1 maintains full functionality throughout this range without derating or external compensation.
Does TL972QDRQ1 support single-supply operation?
Yes, TL972QDRQ1 supports true single-supply operation from 2.7 V to 12 V. Its input common-mode range extends from VCC– + 1.15 V to VCC+ – 1.15 V, and its rail-to-rail output swings within 100 mV of both supply rails under load. For example, with VCC+ = 5 V and VCC– = 0 V, it accepts inputs from 1.15 V to 3.85 V and delivers outputs from 0.1 V to 4.9 V into 2 kΩ - enabling direct interfacing with microcontrollers and ADCs in 3.3 V or 5 V domains.
What is the maximum capacitive load TL972QDRQ1 can drive stably?
TL972QDRQ1 maintains ≥60° phase margin when driving up to 100 pF capacitive loads with a 2 kΩ series resistor, as verified in the datasheet's typical characteristics (Figure 10). Without the series resistor, stability is guaranteed for ≤30 pF. For larger loads (e.g., ADC input capacitance >100 pF), a 10–100 Ω isolation resistor between TL972QDRQ1 output and the capacitive node is recommended to preserve phase margin and prevent peaking or oscillation.
How does TL972QDRQ1 compare to standard TL972 in terms of automotive qualification?
TL972QDRQ1 is the automotive-qualified variant of the TL972 family, tested and certified to AEC-Q100 Grade 1 (–40°C to +125°C), with enhanced ESD robustness (2000-V HBM), latch-up immunity (>100 mA), and extended reliability testing per TI's automotive quality standards. The standard TL972 is a catalog part rated only for commercial temperature (0°C to 70°C) and lacks automotive-specific qualification documentation, making TL972QDRQ1 the only version approved for use in safety-critical or under-hood automotive applications.
What package options are available for TL972QDRQ1?
TL972QDRQ1 is available exclusively in the SOIC-8 (D) package: 3.9 mm × 4.9 mm body, 1.75 mm max height, 1.27 mm lead pitch, RoHS-compliant NIPDAU finish, MSL Level-1. The pin-compatible TSSOP-8 variant (TL972QPWRQ1) is a separate orderable part with different marking and tape-and-reel packaging - TL972QDRQ1 itself is not offered in TSSOP. Board designs must use the SOIC-8 footprint defined in TI's D0008A package outline.
TL972QDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5V/µs
- Gain Bandwidth Product:
- 12 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 2mA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL972QDRQ1 FAQ
1.How can I place an order for TL972QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL972QDRQ1 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 TL972QDRQ1 reliable?
The price and inventory of TL972QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL972QDRQ1 is usually 5 days.
3.What payment methods are accepted for TL972QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL972QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL972QDRQ1?
TL972QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL972QDRQ1 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 TL972QDRQ1?
For technical support, including TL972QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL972QDRQ1 requirements.
6.How does Aetrix verify that TL972QDRQ1 is sourced from the original manufacturer or authorized distributors?
All TL972QDRQ1 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 TL972QDRQ1 meets industry standards.
7.What is the process for return or replacement of TL972QDRQ1?
All TL972QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TL972QDRQ1, 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 TL972QDRQ1 part is unused and in its original packaging.
Return procedure for TL972QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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