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Texas Instruments THS4541QWRGTRQ1
- Part No.:
- THS4541QWRGTRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
THS4541QWRGTRQ1.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,481
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Product details
Overview
THS4541QWRGTRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified, negative-rail input, rail-to-rail output fully differential amplifier optimized for high-speed, precision ADC/DAC interface in automotive LIDAR and thermal imaging systems. It delivers 500MHz small-signal bandwidth at G = 2 V/V, 850MHz gain-bandwidth product, 1500V/µs slew rate, –95dBc HD2 at 10MHz (2VPP), and operates from 2.7V to 5.4V single supply with 10.1mA quiescent current.
For engineers reviewing the THS4541QWRGTRQ1 datasheet, THS4541QWRGTRQ1 pinout, THS4541QWRGTRQ1 application, or THS4541QWRGTRQ1 equivalent, key selection criteria include negative-rail input capability for dc-coupled bipolar sources, rail-to-rail output swing, low distortion at high frequencies, power-down functionality (2µA), and AEC-Q100 Grade 1 qualification for automotive ambient temperature range (–40°C to +125°C).
Technical Context
The THS4541QWRGTRQ1 employs a voltage-feedback architecture with dual-stage transconductance amplification and integrated common-mode feedback loop. Its negative-rail input stage enables direct interfacing of ground-centered, dc-coupled signal sources without level-shifting circuitry, while the rail-to-rail output stage supports full dynamic range utilization across SAR, delta-sigma, and pipeline ADCs.
It features a dedicated Vocm input pin with 150MHz bandwidth and 0.982V/V gain, enabling precise control of differential output common-mode voltage. The power-down pin (PD) provides fast enable/disable timing (100ns turn-on, 60ns turn-off) and reduces quiescent current to ≤8µA, supporting low-power system states in automotive sensing modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = 2) | 500MHz - supports high-frequency analog front-ends for ToF and LIDAR signal conditioning |
| Gain-bandwidth product | 850MHz - enables stable operation up to G = 10 with >125MHz bandwidth |
| Slew rate | 1500V/µs - preserves fast transient fidelity in pulsed LIDAR receiver chains |
| HD2 @ 10MHz | –95dBc (2VPP, RL = 500Ω) - ensures minimal harmonic contamination in wideband imaging digitization |
| Input noise density | 2.2nV/√Hz (>100kHz) - maintains SNR integrity for low-amplitude microbolometer signals |
| Quiescent current | 10.1mA @ 5V - balances performance and power efficiency in thermally constrained automotive modules |
| Power-down current | 2µA (typ) - enables ultra-low standby consumption during sensor idle cycles |
| Operating temp range | –40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood and cabin-mounted systems |
Pinout & Package
The THS4541QWRGTRQ1 is housed in a 16-pin VQFN package (RGT) with 3mm × 3mm footprint and exposed thermal pad. Wettable flanks are not present in this variant (THS4541W-Q1 is the wettable-flank option).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN– | Differential input pair | Negative-rail input allows dc-coupled, ground-referenced source connection without level shifters |
| OUT+, OUT– | Differential output pair | Rail-to-rail swing maximizes ADC input dynamic range with single 5V supply |
| Vocm | Common-mode voltage control | Directly sets output common-mode level (0.982V/V gain) for precise ADC reference alignment |
| FB+, FB– | Output feedback terminals | Enable external gain-setting resistor networks for configurable single-ended-to-differential conversion |
| PD | Power-down enable | Logic-high activates amplifier; logic-low reduces supply current to ≤8µA for duty-cycled operation |
| Vs+, Vs– | Power supply inputs | Supports 2.7V–5.4V single supply or ±1.35V–±2.7V split supply; Vs– pins 13–16 share internal connection |
Key Features
| Feature | Design Value |
|---|---|
| Negative-rail input (NRI) | Accepts input voltages down to (Vs–) – 0.1V, enabling direct interface with bipolar, ground-centered sensors |
| Rail-to-rail output (RRO) | Swings within 200mV of Vs– and 250mV of Vs+ at full load, maximizing usable output swing on 5V supply |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation from –40°C to +125°C ambient, suitable for automotive ADAS and cabin sensing |
| Low offset drift | ±0.5µV/°C typical - minimizes temperature-induced baseline error in precision imaging signal chains |
| Integrated Vocm control | 150MHz bandwidth and <±2mV CM offset at 25°C ensure stable, accurate common-mode setting for ADC drivers |
| High PSRR | 85–100dB - rejects supply noise coupling into differential output, critical in noisy automotive electrical environments |
Applications
| Mechanically Scanning LIDAR | Solid-State LIDAR |
|---|---|
Use Scenario: Amplifying weak, high-bandwidth return pulses from rotating mirror-based time-of-flight detection. IC Role / Device Role / Timing Role: Fully differential driver between photodetector TIA output and high-speed SAR ADC input. Use Value: 500MHz bandwidth and 1500V/µs slew rate preserve pulse edge integrity; NRI enables direct dc-coupling to TIA output without AC coupling capacitors. | Use Scenario: Conditioning analog outputs from flash LIDAR arrays with parallel pixel readout. IC Role / Device Role / Timing Role: Single-ended-to-differential interface for multi-channel ADC acquisition with synchronized sampling. Use Value: Rail-to-rail output swing maximizes ADC effective number of bits (ENOB); power-down mode reduces average system power during inter-frame intervals. |
| Thermal Imaging Camera | Microbolometer Camera |
Use Scenario: Amplifying low-amplitude, low-frequency analog signals from uncooled infrared focal plane arrays. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage before delta-sigma ADC in radiometric measurement path. Use Value: ±0.5µV/°C offset drift and 2.2nV/√Hz input noise maintain thermal resolution across automotive temperature range. | Use Scenario: Signal conditioning for microbolometer pixel readout in compact automotive cabin occupancy sensors. IC Role / Device Role / Timing Role: Low-power FDA driving successive approximation register (SAR) ADC in space-constrained modules. Use Value: 10.1mA quiescent current and 2µA power-down current meet strict thermal and battery-life constraints in always-on sensing nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4521 | Lower bandwidth (145MHz), lower quiescent current (0.95mA), higher input noise (4.6nV/√Hz) | Targeted at medium-speed, low-power data acquisition-not automotive qualified | Select when cost and power dominate over speed/noise; not suitable for AEC-Q100 systems |
| THS4520 | Higher bandwidth (620MHz), higher quiescent current (14.2mA), lower HD2 (–107dBc @ 100kHz) | Optimized for high-fidelity instrumentation-lacks AEC-Q100 qualification and NRI feature | Choose for non-automotive test equipment requiring maximum linearity at lower frequencies |
Compared with THS4541QWRGTRQ1, THS4521 trades bandwidth and noise for power efficiency and cost, while THS4520 offers higher speed but lacks automotive qualification and negative-rail input-making THS4541QWRGTRQ1 uniquely suited for AEC-Q100 LIDAR and thermal imaging interfaces.
Availability
THS4541QWRGTRQ1 is available at Aetrix Electronics and suitable for mechanically scanning LIDAR, solid-state LIDAR, and thermal imaging camera designs requiring stable component supply, automotive-grade reliability, and long-term production continuity.
Supply support for THS4541QWRGTRQ1 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 company specializing in analog and embedded processing technologies, with leadership in high-performance signal chain and power management solutions.
The THS4541-Q1 belongs to TI's automotive-qualified fully differential amplifier product line, designed specifically for precision, high-speed analog front-ends in safety-critical ADAS and cabin sensing applications including LIDAR, thermal cameras, and ToF systems.
FAQ
What is the operating temperature range for THS4541QWRGTRQ1?
The THS4541QWRGTRQ1 is AEC-Q100 Grade 1 qualified and specified for continuous operation from –40°C to +125°C ambient temperature. This rating is validated per automotive stress testing standards and applies across all electrical parameters in the datasheet's recommended operating conditions, making THS4541QWRGTRQ1 suitable for under-hood and cabin-mounted sensing modules.
Does THS4541QWRGTRQ1 support single-supply operation?
Yes, THS4541QWRGTRQ1 supports true single-supply operation from 2.7V to 5.4V. With its negative-rail input and rail-to-rail output, it enables dc-coupled interface of ground-referenced sources (e.g., TIAs in LIDAR receivers) directly to ADCs using only one positive supply and ground-eliminating need for split supplies or level-shifting circuitry in THS4541QWRGTRQ1-based designs.
What is the function of the Vocm pin on THS4541QWRGTRQ1?
On THS4541QWRGTRQ1, the Vocm pin controls the common-mode voltage of the differential output. Driven with a stable voltage, it sets the average output level with 0.982V/V gain and <±2mV offset at 25°C. This allows precise alignment of the THS4541QWRGTRQ1 output common-mode to the ADC's required input common-mode voltage-critical for maximizing dynamic range and minimizing distortion in precision data acquisition systems.
How does the power-down feature work on THS4541QWRGTRQ1?
The PD pin on THS4541QWRGTRQ1 enables hardware-controlled power-down: logic high (≥1.7V above Vs–) enables normal operation; logic low (≤0.7V above Vs–) places the device in ultra-low-power state with quiescent current ≤8µA. Turn-on and turn-off delays are 100ns and 60ns respectively, allowing rapid cycling in time-gated LIDAR or pulsed thermal imaging systems using THS4541QWRGTRQ1.
Is THS4541QWRGTRQ1 pin-compatible with THS4541W-Q1?
Yes, THS4541QWRGTRQ1 and THS4541W-Q1 share identical pin configuration, electrical specifications, and 16-pin VQFN (RGT) package outline. The sole difference is that THS4541W-Q1 includes wettable flanks on all perimeter pins to facilitate automated optical inspection (AOI) after reflow-while THS4541QWRGTRQ1 does not. Both variants use the same PCB footprint and schematic symbol.
THS4541QWRGTRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential, Rail-to-Rail
- Slew Rate:
- 1500V/µs
- Gain Bandwidth Product:
- 850 MHz
- -3db Bandwidth:
- 620 MHz
- Current - Input Bias:
- 10 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 10.1mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.4 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
THS4541QWRGTRQ1 FAQ
1.How can I place an order for THS4541QWRGTRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4541QWRGTRQ1 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 THS4541QWRGTRQ1 reliable?
The price and inventory of THS4541QWRGTRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4541QWRGTRQ1 is usually 5 days.
3.What payment methods are accepted for THS4541QWRGTRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4541QWRGTRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4541QWRGTRQ1?
THS4541QWRGTRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4541QWRGTRQ1 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 THS4541QWRGTRQ1?
For technical support, including THS4541QWRGTRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4541QWRGTRQ1 requirements.
6.How does Aetrix verify that THS4541QWRGTRQ1 is sourced from the original manufacturer or authorized distributors?
All THS4541QWRGTRQ1 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 THS4541QWRGTRQ1 meets industry standards.
7.What is the process for return or replacement of THS4541QWRGTRQ1?
All THS4541QWRGTRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with THS4541QWRGTRQ1, 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 THS4541QWRGTRQ1 part is unused and in its original packaging.
Return procedure for THS4541QWRGTRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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