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Texas Instruments TLE2021QDRG4Q1
- Part No.:
- TLE2021QDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2021QDRG4Q1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,514
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Product details
Overview
TLE2021QDRG4Q1 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, and 100 µV maximum input offset voltage at −40°C to +125°C ambient. Designed for low-level signal conditioning in battery management systems and automotive lighting control circuits.
For engineers reviewing the TLE2021QDRG4Q1 datasheet, TLE2021QDRG4Q1 pinout, TLE2021QDRG4Q1 application, or TLE2021QDRG4Q1 equivalent, this page provides verified electrical specifications, automotive-grade thermal performance data, phase-reversal protection details, and validated alternative options for high-reliability vehicle electronics design.
Technical Context
The TLE2021QDRG4Q1 uses a proprietary Texas Instruments bipolar process optimized for stable dc performance across temperature and time. Its bias circuit enables minimal supply-current change (≤300 µA max) over −40°C to +125°C and supports both single-supply (5 V) and dual-supply (±15 V) operation.
It features phase-reversal protection to prevent output state inversion when inputs fall below the negative rail, and its common-mode input range includes the negative rail-enabling true single-supply operation with rail-to-rail input capability down to VCC−. Open-loop gain of 6.5 V/µV (136 dB typ) ensures high-precision closed-loop accuracy in sensor interface and feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current | 300 µA maximum - enables ultra-low-power operation in always-on automotive modules without compromising precision. |
| Unity-gain bandwidth | 2 MHz typical - supports stable amplification of medium-frequency sensor signals (e.g., thermistor, potentiometer, current-sense outputs). |
| Slew rate | 0.45 V/µs minimum - ensures faithful reproduction of fast transients in motor control feedback loops and lighting PWM conditioning. |
| Input offset voltage | 100 µV maximum - maintains <±0.1% error in 100 mV full-scale BMS cell voltage monitoring at room temperature. |
| Common-mode input range | Includes VCC− (to −15 V on ±15 V supply) - allows direct interfacing with ground-referenced sensors in single-supply configurations. |
| Open-loop gain | 6.5 V/µV (136 dB) typical - delivers >100 dB loop gain at 1 kHz for high-accuracy closed-loop gain setting in instrumentation amplifiers. |
| ESD protection | Exceeds 1000 V per MIL-STD-883 Method 3015 - meets automotive board-level ESD robustness requirements without external protection. |
Pinout & Package
Package: D (SOIC, 8-pin), 3.9 mm × 4.9 mm body, 1.27 mm pitch, gull-wing leads. RoHS-compliant, automotive-grade molding compound rated for 150°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | External offset null adjustment terminal - used with potentiometer to trim input offset voltage to <10 µV in high-accuracy applications. |
| 2 | –IN | Inverting input - accepts feedback network or inverted signal path; phase-reversal protected against sub-rail excursions. |
| 3 | +IN | Noninverting input - referenced to VCC−; supports rail-to-rail common-mode input including ground in single-supply mode. |
| 4 | V– | Negative power supply - must be connected to lowest potential rail (e.g., GND in 5 V single-supply, –15 V in dual-supply). |
| 5 | OFFSET N2 | External offset null adjustment terminal - paired with Pin 1 for balanced nulling; unused pins must be left floating. |
| 6 | OUT | Amplifier output - drives loads ≥10 kΩ; delivers ±20 mA short-circuit current with thermal foldback protection. |
| 7 | V+ | Positive power supply - supplies up to +20 V (absolute max); decoupling capacitor required within 1 cm of Pin 7. |
| 8 | NC | No connection - internal die pad not bonded; must remain unconnected and floating on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualification | Rated for −40°C to +125°C ambient operation with full parametric validation - eliminates requalification effort for Tier 1 automotive designs. |
| Phase-reversal protection | Prevents output latch-up or polarity inversion when either input drops below V– - critical for fault-tolerant sensor interfaces in ADAS domains. |
| Low input bias current | 50 nA maximum - minimizes voltage error across high-impedance sources (e.g., thermistors, pH electrodes, piezoelectric sensors). |
| Low noise voltage | 19 nV/√Hz at 10 Hz - enables clean amplification of microvolt-level signals from strain gauges and current-shunt monitors. |
| Stable supply current vs. temperature | ICC remains ≤300 µA across full automotive temperature range - simplifies power budgeting in thermally varying engine bay environments. |
Applications
| Automotive Battery Management System (BMS) | Automotive Lighting Control |
|---|---|
|
Use Scenario: Precision measurement of individual Li-ion cell voltages in 12–48 V pack monitoring units. IC Role / Device Role / Timing Role: Low-drift difference amplifier front-end with external offset trimming for <0.05% total measurement error. Use Value: 100 µV max VIO and ±2 µV/°C drift ensure <±1 mV error over full temperature range, meeting ISO 26262 ASIL-B voltage monitoring requirements. |
Use Scenario: Closed-loop current regulation for LED headlamp drivers with PWM dimming. IC Role / Device Role / Timing Role: High-speed current-sense amplifier feeding into PWM comparator with phase-reversal immunity during transient load switching. Use Value: 0.45 V/µs slew rate and rail-to-rail input allow accurate capture of 100 ns current spikes; 2 MHz bandwidth supports >100 kHz sensing loop bandwidth. |
| On-Board Charger (OBC) Feedback | Body Electronics Sensor Interface |
|
Use Scenario: Isolated voltage and current feedback in bidirectional AC/DC converters for EV charging systems. IC Role / Device Role / Timing Role: Precision op-amp in secondary-side error amplifier loop, rejecting common-mode noise from isolated gate drivers. Use Value: 115 dB CMRR and 120 dB PSRR maintain <0.1% regulation accuracy despite 100 Vpp common-mode ripple on isolated feedback traces. |
Use Scenario: Signal conditioning for HVAC blower motor position sensors and door lock actuator current monitors. IC Role / Device Role / Timing Role: Single-supply amplifier operating from 5 V rail, accepting 0–5 V sensor outputs while rejecting battery ripple. Use Value: Common-mode input range to V– (0 V) and 300 µA supply current enable direct integration into low-power body control modules without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9061QDRQ1 | CMOS input (0.5 pA IIB), lower supply current (50 µA), but reduced open-loop gain (120 dB) and no offset-null pins. | Better for ultra-low-power, high-impedance sensor nodes; unsuitable where manual offset trimming or >130 dB gain is required. | Select TLV9061QDRQ1 only if input bias current <1 pA is mandatory and offset trimming is unnecessary. |
| OPA333AIDBVRQ1 | Zero-drift architecture (0.1 µV/°C drift), rail-to-rail I/O, but lower slew rate (0.16 V/µs) and 350 kHz bandwidth. | Preferred for DC-critical applications like thermocouple amplification; inadequate for >100 kHz signal conditioning or fast transient response. | Choose OPA333AIDBVRQ1 when long-term dc stability dominates over speed; avoid for motor control or lighting PWM feedback. |
Compared with TLV9061QDRQ1 and OPA333AIDBVRQ1, the TLE2021QDRG4Q1 uniquely balances bipolar precision (100 µV VIO, 136 dB AVD), automotive thermal stability (300 µA ICC over −40°C to +125°C), and phase-reversal protection-making it irreplaceable in safety-critical analog front-ends requiring manual calibration and transient resilience.
Availability
TLE2021QDRG4Q1 is available at Aetrix Electronics and suitable for automotive battery management systems, lighting control modules, and on-board charger feedback circuits requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLE2021QDRG4Q1 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 qualification expertise and AEC-Q100-compliant manufacturing infrastructure.
The TLE202x-Q1 product line was engineered specifically for high-reliability automotive signal conditioning-emphasizing dc precision, thermal stability, and fault tolerance in harsh under-hood and cabin environments.
FAQ
What is the maximum operating temperature range for the TLE2021QDRG4Q1?
The TLE2021QDRG4Q1 is AEC-Q100 qualified for continuous operation from −40°C to +125°C ambient temperature. Its thermal metrics-including 129.1°C/W junction-to-ambient resistance in the SOIC-8 package-ensure reliable performance in engine control units and battery junction boxes without derating up to 125°C.
Does the TLE2021QDRG4Q1 support single-supply operation?
Yes, the TLE2021QDRG4Q1 is fully specified for 5 V single-supply operation. Its common-mode input range extends to the negative rail (0 V), and output swings to within 0.95 V of the negative rail at 125°C-enabling direct interfacing with ground-referenced sensors without level-shifting circuitry.
What is the purpose of Pins 1 and 5 (OFFSET N1 and OFFSET N2) on the TLE2021QDRG4Q1?
Pins 1 and 5 provide external offset null adjustment terminals. Connecting a 10-kΩ potentiometer between them-with the wiper tied to V–-allows manual trimming of input offset voltage to <10 µV. This capability is essential for achieving sub-millivolt accuracy in precision BMS voltage monitoring using the TLE2021QDRG4Q1.
How does phase-reversal protection function in the TLE2021QDRG4Q1?
The TLE2021QDRG4Q1 integrates internal circuitry that prevents output polarity inversion when either input falls below the negative supply rail. This eliminates unexpected output latching during sensor disconnect faults or ESD events-ensuring predictable behavior in automotive lighting and motor control feedback paths where the TLE2021QDRG4Q1 is deployed.
Is the TLE2021QDRG4Q1 pin-compatible with other devices in the TLE202x-Q1 family?
No-the TLE2021QDRG4Q1 (single-channel, SOIC-8) has a different pinout than the dual-channel TLE2022-Q1 and quad-channel TLE2024-Q1. While all share the same D-package footprint, the channel count, pin assignments (e.g., multiple IN+/IN− pairs), and absence/presence of NC pins differ. PCB layout must be specific to the TLE2021QDRG4Q1's 8-pin configuration.
TLE2021QDRG4Q1 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
TLE2021QDRG4Q1 FAQ
1.How can I place an order for TLE2021QDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021QDRG4Q1 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 TLE2021QDRG4Q1 reliable?
The price and inventory of TLE2021QDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021QDRG4Q1 is usually 5 days.
3.What payment methods are accepted for TLE2021QDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021QDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021QDRG4Q1?
TLE2021QDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021QDRG4Q1 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 TLE2021QDRG4Q1?
For technical support, including TLE2021QDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021QDRG4Q1 requirements.
6.How does Aetrix verify that TLE2021QDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All TLE2021QDRG4Q1 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 TLE2021QDRG4Q1 meets industry standards.
7.What is the process for return or replacement of TLE2021QDRG4Q1?
All TLE2021QDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021QDRG4Q1, 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 TLE2021QDRG4Q1 part is unused and in its original packaging.
Return procedure for TLE2021QDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2021QDRG4Q1 Tags
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LM358DT
STMicroelectronics
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Texas Instruments
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Texas Instruments
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Texas Instruments
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Texas Instruments
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Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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Texas Instruments
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Texas Instruments
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Texas Instruments
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