My Inquiry
My Account
Texas Instruments TLV2471AQDRQ1
- Part No.:
- TLV2471AQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2471AQDRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,445
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2471AQDRQ1 from Texas Instruments is an automotive-qualified, single-channel CMOS rail-to-rail input/output operational amplifier optimized for low-voltage, low-power sensor signal conditioning. It delivers 2.8 MHz gain-bandwidth, 600 µA supply current per channel, ±35 mA output drive at 500 mV from rail, and 250 µV typical input offset voltage across −40°C to 125°C. It is used in automotive cabin pressure sensors, battery monitoring front-ends, and portable medical ECG analog front-ends.
For engineers reviewing the TLV2471AQDRQ1 datasheet, TLV2471AQDRQ1 pinout, TLV2471AQDRQ1 application, or TLV2471AQDRQ1 equivalent, key selection criteria include rail-to-rail I/O swing at 2.7–6 V supply, 2.5 pA input bias current, automotive temperature qualification, output drive capability under load, and compatibility with capacitive-load compensation techniques.
Technical Context
The TLV2471AQDRQ1 employs a CMOS input stage enabling ultra-low input bias current (2.5 pA) and rail-to-rail common-mode input range (0 V to VDD). Its output stage supports true rail-to-rail swing under 10 mA load (within 180 mV of rails) and high-current sourcing/sinking (±35 mA at 500 mV from rail), resolving limitations of legacy micropower op-amps.
It operates across the full automotive temperature range (−40°C to 125°C) with guaranteed specifications at 3 V and 5 V supplies. The device features 61° phase margin with 1000 pF capacitive load and includes internal ESD protection exceeding 2000 V HBM and 200 V machine model.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - Enables direct operation from single-cell Li-ion (3.0–3.7 V) or dual-cell alkaline (3.0 V min) without regulation. |
| Gain-Bandwidth Product | 2.8 MHz - Supports stable closed-loop gain ≥10 up to ~280 kHz for anti-aliasing filter interfaces. |
| Input Bias Current | 2.5 pA (typ) - Minimizes voltage error in high-impedance sensor bridges (e.g., piezoresistive pressure sensors). |
| Output Drive | ±35 mA at 500 mV from rail - Drives 100 Ω loads directly or charges 10 nF sampling capacitors in SAR ADC front-ends. |
| Input Offset Voltage | 250 µV (typ), 1800 µV (max over temp) - Enables <0.1% accuracy in 2.5 V full-scale instrumentation amplifiers. |
| Quiescent Current | 600 µA per channel - Allows continuous operation in always-on automotive modules with <1.5 mW power budget at 3 V. |
| CMRR / PSRR | 84 dB / 92 dB (typ at 5 V) - Rejects supply ripple and common-mode noise in noisy automotive 12 V systems with local LDO. |
Pinout & Package
SOP-8 (D package), surface-mount, thermally enhanced plastic small-outline package with exposed thermal pad (non-electrical). Pin count: 8. Pin 1 marked by beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pin; must be left floating or tied to GND for mechanical stability - no electrical function. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; requires guard ring or short trace to minimize leakage-induced offset drift. |
| 3 (IN+) | Non-inverting input | Rail-to-rail common-mode range (0 V to VDD); accepts signals directly from resistive sensors or DAC outputs. |
| 4 (GND) | Analog ground reference | Primary return path for input bias currents and output load current; must connect to low-impedance ground plane. |
| 5 (NC) | No internal connection | Unused pin; electrically isolated - no routing or soldering required. |
| 6 (VDD) | Positive supply | Accepts 2.7–6 V; requires local 0.1 µF ceramic + 6.8 µF tantalum decoupling per TI layout guidelines. |
| 7 (OUT) | Amplifier output | Capable of ±35 mA drive; series resistor (RNULL ≥20 Ω) required for >10 pF capacitive loads to maintain stability. |
| 8 (NC) | No internal connection | Unused pin; no internal bond wire - may be omitted from PCB footprint if mechanical clearance allows. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3 V systems - e.g., 0–3 V output swing driving SAR ADC reference buffers. |
| Automotive AEC-Q100 qualified | Guaranteed operation from −40°C to 125°C ambient with tested reliability for engine control, body electronics, and ADAS subsystems. |
| 2.5 pA input bias current | Reduces offset error below 1 µV in 1 MΩ source impedance applications - critical for thermopile and strain gauge interfaces. |
| 600 µA quiescent current | Supports always-on wake-up circuits in vehicle entry systems with <10 µA average system current when duty-cycled. |
| ±35 mA output drive | Eliminates need for external buffer stages when driving LED indicators, relay drivers, or multi-pole active filters. |
Applications
| Automotive Cabin Pressure Sensing | Portable ECG Front-End |
|---|---|
Use Scenario: Measures differential pressure across HVAC ducts using piezoresistive bridge with 1–10 mV output. IC Role / Device Role / Timing Role: Instrumentation amplifier input stage providing gain, offset trimming, and rail-to-rail buffering into 16-bit delta-sigma ADC. Use Value: 2.5 pA input bias current prevents bridge imbalance errors; 250 µV offset enables <0.5 Pa resolution at 100 Pa full scale. | Use Scenario: Amplifies 0.5–2 mV biopotential signals from dry electrodes in wearable heart-rate monitors. IC Role / Device Role / Timing Role: First-stage low-noise, low-drift amplifier with 2.8 MHz bandwidth for 100 Hz cutoff filtering. Use Value: 15 nV/√Hz input noise at 1 kHz ensures SNR > 85 dB; rail-to-rail output drives ADC reference without level-shifting. |
| Battery Cell Voltage Monitoring | Industrial 4–20 mA Loop Transmitter |
Use Scenario: Monitors individual Li-ion cell voltages (2.5–4.2 V) in 12S BMS with isolated SPI communication. IC Role / Device Role / Timing Role: High-impedance voltage follower feeding isolated sigma-delta modulator input. Use Value: 600 µA supply current minimizes self-heating drift; 2.7–6 V supply range matches auxiliary LDO output. | Use Scenario: Converts 0–5 V process controller output to 4–20 mA current loop with HART modulation capability. IC Role / Device Role / Timing Role: Precision I/V converter op-amp driving NPN/PNP current mirror with feedback sensing. Use Value: ±35 mA output drive sustains 20 mA loop current into 600 Ω load at 12 V supply; 84 dB CMRR rejects common-mode noise on long cables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2471QDRQ1 | Same silicon, standard grade (no 'A' suffix); 2000 µV max VIO vs 1800 µV for TLV2471AQDRQ1. | Approved for automotive but not AEC-Q100 Grade 1; suitable for non-safety-critical infotainment sensors. | Select TLV2471QDRQ1 only if VIO spec >2000 µV is acceptable and AEC-Q100 Grade 1 compliance is not required. |
| OPA333AIDBVR | Zero-drift architecture; 0.1 µV max VIO, 0.02 µV/°C drift, but 350 kHz GBW and 17 µA IQ. | Superior DC precision for weigh scales or medical diagnostics; insufficient bandwidth for audio or fast sensor sampling. | Choose OPA333AIDBVR when microvolt-level offset stability dominates over bandwidth and power; avoid for >100 kHz signal paths. |
Compared with TLV2471QDRQ1, the TLV2471AQDRQ1 offers tighter offset voltage and full AEC-Q100 Grade 1 validation, while the OPA333AIDBVR trades bandwidth and current efficiency for near-zero drift - making each optimal for distinct automotive subsystem requirements.
Availability
TLV2471AQDRQ1 is available at Aetrix Electronics and suitable for automotive cabin pressure sensing, portable ECG front-ends, and battery cell voltage monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2471AQDRQ1 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, embedded processing, and digital signal technologies with broad automotive, industrial, and personal electronics portfolios.
The TLV247x product line was designed specifically for automotive and portable industrial signal conditioning - delivering rail-to-rail performance at micropower current levels while meeting AEC-Q100 reliability standards.
FAQ
What is the operating temperature range for TLV2471AQDRQ1?
The TLV2471AQDRQ1 is qualified for automotive applications with a guaranteed operating free-air temperature range of −40°C to 125°C. All electrical specifications in the datasheet are validated across this full range, including input offset voltage, supply current, and output drive capability - making it suitable for under-hood and cabin-mounted electronic control units.
Does TLV2471AQDRQ1 support rail-to-rail input and output simultaneously?
Yes, the TLV2471AQDRQ1 supports true rail-to-rail input common-mode range (0 V to VDD) and rail-to-rail output swing. At 3 V supply with 10 mA load, it swings within 180 mV of both rails; at 5 V, it achieves similar performance. This simultaneous RRO operation enables maximum signal dynamic range in low-voltage systems without external level-shifting circuitry.
What is the recommended decoupling for TLV2471AQDRQ1?
Texas Instruments specifies a 0.1 µF ceramic capacitor placed as close as possible (<0.1 inch) to the VDD and GND pins of TLV2471AQDRQ1, plus a 6.8 µF tantalum capacitor shared across multiple devices. This dual-capacitor network suppresses high-frequency noise and stabilizes supply impedance - critical for maintaining 61° phase margin and preventing oscillation in high-gain configurations.
Can TLV2471AQDRQ1 drive capacitive loads directly?
No - TLV2471AQDRQ1 requires external isolation for capacitive loads exceeding 10 pF. A series resistor (RNULL ≥20 Ω) must be placed between the OUT pin and the capacitive load to preserve phase margin. Without this, loads >100 pF cause ringing or oscillation due to reduced loop stability, as confirmed by phase margin testing down to 61° at 1000 pF with RNULL = 0 Ω.
How does the 'A' suffix in TLV2471AQDRQ1 affect its specifications?
The 'A' suffix denotes enhanced initial input offset voltage grade: TLV2471AQDRQ1 has a maximum VIO of 1800 µV over temperature, versus 2400 µV for the standard TLV2471QDRQ1. It also signifies full AEC-Q100 Grade 1 qualification, including stress testing for temperature cycling, humidity, and lifetime reliability - essential for safety-critical automotive subsystems.
TLV2471AQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 2.8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2.5 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2471AQDRQ1 FAQ
1.How can I place an order for TLV2471AQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471AQDRQ1 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 TLV2471AQDRQ1 reliable?
The price and inventory of TLV2471AQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471AQDRQ1 is usually 5 days.
3.What payment methods are accepted for TLV2471AQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471AQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471AQDRQ1?
TLV2471AQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471AQDRQ1 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 TLV2471AQDRQ1?
For technical support, including TLV2471AQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471AQDRQ1 requirements.
6.How does Aetrix verify that TLV2471AQDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV2471AQDRQ1 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 TLV2471AQDRQ1 meets industry standards.
7.What is the process for return or replacement of TLV2471AQDRQ1?
All TLV2471AQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471AQDRQ1, 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 TLV2471AQDRQ1 part is unused and in its original packaging.
Return procedure for TLV2471AQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2471AQDRQ1 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…
