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Texas Instruments TLE2021QDRQ1
- Part No.:
- TLE2021QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2021QDRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,992
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Product details
Overview
TLE2021QDRQ1 from Texas Instruments is a single-channel, AEC-Q100 qualified automotive precision operational amplifier in an 8-pin SOIC package. It delivers 2 MHz unity-gain bandwidth, 0.45 V/μs minimum slew rate, 100 μV maximum input offset voltage, 300 μA maximum supply current, and rail-to-rail common-mode input down to the negative supply rail - enabling accurate low-level signal conditioning in 5V single-supply or ±15V split-supply automotive sensor interfaces.
For engineers reviewing the TLE2021QDRQ1 datasheet, TLE2021QDRQ1 pinout, TLE2021QDRQ1 application, or TLE2021QDRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), phase-reversal protection, low 19 nV/√Hz input voltage noise at 10 Hz, and stable dc performance across temperature and time - critical for battery management, motor control feedback, and automotive lighting driver circuits.
Technical Context
The TLE2021QDRQ1 uses a proprietary Texas Instruments bipolar process with integrated bias circuitry, delivering exceptional parameter stability over temperature and lifetime. Its architecture supports both single-supply (5V) and dual-supply (±15V) operation while maintaining high open-loop gain (6.5 V/μV typical) and 136 dB CMRR at 25°C.
Phase-reversal protection prevents output inversion when either input falls below the negative supply rail - a critical safeguard in automotive transients and sensor fault conditions. The device's common-mode input range includes the negative rail and extends to within 1.5 V of the positive rail under ±15V operation, enabling direct interfacing with ground-referenced sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 300 μA max - enables ultra-low-power operation in always-on automotive modules without compromising precision. |
| Input Offset Voltage | 100 μV max - ensures ≤0.1% error in 100 mV full-scale sensor signal amplification at room temperature. |
| Unity-Gain Bandwidth | 2 MHz typical - supports stable closed-loop operation up to ~1.2 MHz with adequate phase margin (46°). |
| Slew Rate | 0.45 V/μs min - allows clean 10 kHz sine-wave output at 4.5 Vpp without distortion under 5V supply. |
| Input Voltage Noise | 19 nV/√Hz at 10 Hz - preserves SNR in sub-1 kHz precision measurement paths such as thermistor or strain gauge interfaces. |
| Common-Mode Range | Includes negative rail to +13.2 V (±15V) or 0 V to +3.2 V (5V) - enables direct connection to ground-sensed current shunts or battery terminals. |
| AEC-Q100 Grade | Grade 1 (–40°C to +125°C TA) - qualified for engine bay, powertrain, and body control module environments. |
Pinout & Package
Package: D (SOIC-8), 8-pin small-outline integrated circuit with standard 1.27 mm pitch and gull-wing leads. RoHS-compliant, moisture sensitivity level (MSL) 2a per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | External offset null adjustment terminal - used with potentiometer to trim input offset voltage to <50 μV in high-accuracy applications. |
| 2 | –IN | Inverting input - accepts feedback network or inverted signal path; phase-reversal protected. |
| 3 | +IN | Noninverting input - accepts reference or sensor signal; common-mode range includes V–. |
| 4 | V– | Negative power supply - must be connected to lowest potential (0 V in single-supply, –15 V in dual-supply). |
| 5 | OFFSET N2 | External offset null adjustment terminal - paired with Pin 1 for balanced nulling; float if unused. |
| 6 | OUT | Amplifier output - drives loads ≥10 kΩ; capable of ±13.6 V swing at ±15 V supply or 0.95 V to 3.8 V at 5 V supply. |
| 7 | V+ | Positive power supply - highest potential node (5 V or +15 V); decoupling capacitor required. |
| 8 | NC | No connection - must be left floating; no internal bond wire or circuit connection. |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal protection | Prevents output latch-up or polarity inversion when input signals drop below V– - eliminates need for external clamping diodes in harsh automotive environments. |
| Rail-included common-mode input | Accepts inputs at V– (0 V or –15 V) without degradation - simplifies design of ground-referenced current sensing and battery voltage monitoring. |
| Stable dc parameters over time/temperature | Input offset drift ≤±2 μV/°C and minimal supply-current change ensure long-term calibration integrity in safety-critical BMS and motor control loops. |
| Low-noise bipolar architecture | 19 nV/√Hz input voltage noise at 10 Hz and 0.16 μVPP 0.1–1 Hz noise enable high-resolution analog front-end design for thermocouple or pressure sensor signal chains. |
| AEC-Q100 qualification | Validated for automotive use across –40°C to +125°C ambient with ESD >1000 V (MIL-STD-883 Method 3015) - meets ISO 16750-2 electrical load dump and transient immunity requirements. |
Applications
| Automotive Battery Management System (BMS) | On-Board Charger (OBC) Feedback Loop |
|---|---|
Use Scenario: Precision measurement of cell voltage and pack current in 48V mild-hybrid battery stacks. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier front-end stage for shunt-based current sensing and differential cell voltage monitoring. Use Value: 100 μV max offset and rail-to-rail input allow accurate sub-mV resolution on 10 mΩ shunts without level-shifting, reducing component count and thermal drift errors. | Use Scenario: Voltage and current regulation feedback in bidirectional AC/DC converters for EV charging systems. IC Role / Device Role / Timing Role: Error amplifier in isolated voltage/current control loop, interfacing with optocoupler or digital isolator outputs. Use Value: Phase-reversal protection prevents false triggering during line transients; 2 MHz bandwidth supports fast loop response (<500 ns settling) for dynamic load changes. |
| Automotive Lighting Driver Control | Body Electronics Sensor Interface |
Use Scenario: Closed-loop brightness control of LED headlamps using PWM dimming and photodiode feedback. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photodiode current to voltage, driving ADC input of microcontroller. Use Value: 19 nV/√Hz noise floor preserves dynamic range for low-light detection; 300 μA supply current minimizes thermal impact on optical calibration. | Use Scenario: Signal conditioning for HVAC temperature sensors, door position Hall-effect sensors, and seat occupancy capacitive sensors. IC Role / Device Role / Timing Role: Single-supply (5V) buffer and gain stage for millivolt-level analog sensor outputs prior to MCU ADC sampling. Use Value: Common-mode input including ground enables direct connection to thermistors and resistive sensors without biasing networks, reducing BOM cost and layout area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9001QDRQ1 | Fully rail-to-rail I/O, lower 0.15 mV offset (typ), but only 1 MHz GBW and higher 150 μA supply current; CMOS process. | Better for ultra-low-voltage (1.8V) systems; less suitable for high-speed feedback loops requiring >1.5 MHz bandwidth. | Select TLV9001QDRQ1 when rail-to-rail output swing and sub-1V operation are mandatory; retain TLE2021QDRQ1 for 2 MHz bandwidth and proven bipolar noise performance in 5V/±15V domains. |
| OPA333QDBVRQ1 | Zero-drift architecture, 10 μV max offset, 0.17 μV/°C drift, but 350 kHz GBW and 17 μA supply current; no phase-reversal protection. | Ideal for ultra-stable DC measurements (e.g., cabin air quality sensors); unsuitable for dynamic motor control feedback requiring >500 kHz closed-loop bandwidth. | Choose OPA333QDBVRQ1 for static sensor offsets where long-term drift dominates; choose TLE2021QDRQ1 when combined speed, noise, and fault tolerance are required in real-time control. |
Compared with TLV9001QDRQ1 and OPA333QDBVRQ1, the TLE2021QDRQ1 uniquely balances 2 MHz bandwidth, 100 μV offset, phase-reversal protection, and AEC-Q100 Grade 1 qualification - making it the optimal choice for automotive feedback amplifiers where speed, precision, and robustness must coexist.
Availability
TLE2021QDRQ1 is available at Aetrix Electronics and suitable for automotive battery management systems, on-board chargers, and body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLE2021QDRQ1 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 IC development and manufacturing expertise.
The TLE202x-Q1 product line was engineered specifically for high-reliability automotive signal conditioning - combining precision dc performance, high-speed capability, and fault-tolerant features like phase-reversal protection to meet stringent ASIL-B system requirements.
FAQ
What is the operating temperature range for the TLE2021QDRQ1?
The TLE2021QDRQ1 is AEC-Q100 Grade 1 qualified and specified for continuous operation from –40°C to +125°C ambient temperature (TA). All electrical characteristics - including input offset voltage, supply current, and common-mode range - are guaranteed across this full automotive temperature range, making it suitable for engine compartment and powertrain applications.
Does the TLE2021QDRQ1 support single-supply operation?
Yes, the TLE2021QDRQ1 is fully specified for 5V single-supply operation (V+ = 5V, V– = 0V). Its common-mode input range extends from 0 V (the negative rail) to +3.2 V, and output swings from 0.95 V to 3.8 V into a 10 kΩ load - enabling direct interface with 3.3V microcontrollers and ground-referenced sensors without level-shifting circuitry.
What is the purpose of Pins 1 and 5 (OFFSET N1 and OFFSET N2) on the TLE2021QDRQ1?
Pins 1 and 5 are external offset null terminals used to adjust input offset voltage via an external 10 kΩ potentiometer connected between them, with the wiper grounded. This allows trimming the TLE2021QDRQ1's offset to <50 μV in high-accuracy applications such as precision current sensing or bridge amplifier configurations.
How does phase-reversal protection work in the TLE2021QDRQ1?
The TLE2021QDRQ1 integrates internal circuitry that prevents output polarity inversion when either input falls below the negative supply rail (V–). Unlike standard op-amps that may latch or reverse output state under such fault conditions, the TLE2021QDRQ1 maintains predictable behavior - eliminating risk of uncontrolled actuator activation in automotive safety-critical systems.
Is the TLE2021QDRQ1 pin-compatible with other devices in the TLE202x-Q1 family?
No - the TLE2021QDRQ1 (single-channel, SOIC-8) has a unique pinout optimized for offset nulling and single-amplifier use. The TLE2022QDRQ1 (dual) and TLE2024QDWQ1 (quad) use different pin assignments for channel inputs/outputs and do not share pin-for-pin compatibility. PCB layout must be designed specifically for the TLE2021QDRQ1's 8-pin D package configuration.
TLE2021QDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.65V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 120 µV
- Current - Supply:
- 200µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2021QDRQ1 FAQ
1.How can I place an order for TLE2021QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021QDRQ1 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 TLE2021QDRQ1 reliable?
The price and inventory of TLE2021QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021QDRQ1 is usually 5 days.
3.What payment methods are accepted for TLE2021QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021QDRQ1?
TLE2021QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021QDRQ1 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 TLE2021QDRQ1?
For technical support, including TLE2021QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021QDRQ1 requirements.
6.How does Aetrix verify that TLE2021QDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLE2021QDRQ1 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 TLE2021QDRQ1 meets industry standards.
7.What is the process for return or replacement of TLE2021QDRQ1?
All TLE2021QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021QDRQ1, 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 TLE2021QDRQ1 part is unused and in its original packaging.
Return procedure for TLE2021QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2021QDRQ1 Tags
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