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Texas Instruments TLV2474AIDR
- Part No.:
- TLV2474AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2474AIDR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TLV2474AIDR from Texas Instruments is a quad-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-power, high-output-drive signal conditioning in 2.7V–6V single-supply systems. It delivers 2.8MHz gain-bandwidth, ±35mA output drive at 500mV from rail, 250μV typical input offset voltage, and 600μA per channel supply current - enabling precision sensor interfacing and portable medical instrumentation.
For engineers reviewing the TLV2474AIDR datasheet, TLV2474AIDR pinout, TLV2474AIDR application, or TLV2474AIDR equivalent, this page provides verified functional specifications, TSSOP-14 package layout, real-world use cases in battery-powered data acquisition, and validated alternative op-amps with documented performance trade-offs.
Technical Context
The TLV2474AIDR employs a CMOS input stage delivering 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD), paired with a robust output stage capable of ±35mA sourcing/sinking while maintaining 180mV rail headroom under 10mA load. Its 2.8MHz unity-gain bandwidth and 1.5V/μs slew rate support stable closed-loop operation up to 10kHz with 10kΩ load and 1000pF capacitive feedback.
Shutdown functionality is implemented via logic-level control (VIH = 2V, VIL = 0.8V) that reduces quiescent current to 1000nA/channel at 5V, with 5μs turn-on and 250ns turn-off times. The device is fully specified across –40°C to +125°C and supports stable operation with load capacitances up to 1000pF when using series nulling resistors ≥20Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 6V - enables direct integration into Li-ion (3.7V nominal) and dual-cell alkaline (3V) systems without LDO pre-regulation. |
| Gain-Bandwidth Product | 2.8MHz - supports stable unity-gain buffer configurations up to ~200kHz with 10kΩ//100pF load. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 100Ω loads directly (e.g., ADC reference buffers, analog multiplexer drivers). |
| Input Offset Voltage | 250μV (typ) - ensures ≤0.5mV total error in 12-bit (2.5V full-scale) sensor front-ends without trimming. |
| Supply Current per Channel | 600μA - allows four independent channels to operate within 2.4mA total IDD, critical for multi-sensor IoT nodes. |
| Shutdown Current | 1000nA/channel at 5V - extends battery life by >100× vs active mode in duty-cycled measurement systems. |
| Input Bias Current | 2.5pA - preserves signal integrity in high-impedance pH electrode or photodiode transimpedance applications. |
Pinout & Package
TSSOP-14 package (4.4mm × 5mm × 1.2mm height) with exposed pad for thermal enhancement; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Channel 1 output - rail-to-rail swing supports full dynamic range in single-supply 12-bit ADC interfaces. |
| 2 | IN1− | Inverting input - matched to IN1+ for <100μV input offset drift over temperature. |
| 3 | IN1+ | Non-inverting input - accepts signals from 0V to VDD, enabling direct connection to resistive sensors. |
| 4 | VDD | Positive supply - decoupling capacitor (0.1μF) required within 5mm for stability with capacitive loads. |
| 5 | IN2+ | Non-inverting input - isolated from IN1+/IN1− to prevent crosstalk in multi-channel ECG front-ends. |
| 6 | IN2− | Inverting input - differential pair with IN2+ enables precise instrumentation amplifier configurations. |
| 7 | OUT2 | Channel 2 output - independently driven; no internal coupling to OUT1/OUT3/OUT4. |
| 8 | GND | Analog ground - must be star-connected to system AGND; separate from digital ground plane. |
| 9 | OUT4 | Channel 4 output - identical electrical specs to OUT1; supports redundant signal paths in safety-critical designs. |
| 10 | IN4− | Inverting input - shares same process-matched characteristics as IN1−/IN2−/IN3−. |
| 11 | IN4+ | Non-inverting input - enables simultaneous sampling of four independent sensor outputs. |
| 12 | GND | Second ground terminal - improves PSRR by reducing ground bounce in high-frequency switching environments. |
| 13 | IN3+ | Non-inverting input - used in 3-channel thermocouple cold-junction compensation circuits. |
| 14 | IN3− | Inverting input - complements IN3+ for differential thermistor bridge amplification. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full 0V–VDD signal swing in single-supply 3.3V systems, maximizing ADC utilization without level-shifting. |
| 600μA per channel supply current | Supports always-on sensor monitoring with four channels drawing only 2.4mA total - extends CR2032 battery life to >2 years. |
| ±35mA output drive capability | Drives 100Ω loads directly (e.g., 50Ω coax + 50Ω termination), eliminating external buffer stages in test equipment. |
| 2.5pA input bias current | Maintains accuracy in 1GΩ photodiode transimpedance amplifiers with <1mV output error at 100nA photocurrent. |
| Logic-compatible shutdown control | Reduces power to 1μA total (4 channels) using standard GPIO; no external pull-up/pull-down required. |
| Specified from –40°C to +125°C | Validated for automotive cabin temperature sensors and industrial motor control feedback loops without derating. |
Applications
| Portable ECG Monitor Front-End | Multi-Sensor IoT Node Signal Conditioning |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable ECG devices. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end providing simultaneous gain, filtering, and level-shifting for four limb leads. Use Value: Rail-to-rail I/O and 250μV offset enable >90dB SNR in 12-bit digitization; 600μA/channel allows 72-hour continuous operation on 200mAh LiPo. |
Use Scenario: Conditioning analog outputs from temperature, humidity, and gas sensors in LPWAN-connected environmental monitors. IC Role / Device Role / Timing Role: Four independent precision buffers driving SAR ADC inputs while rejecting supply noise in shared 3.3V rail. Use Value: 2.8MHz GBW supports anti-aliasing filter settling in <1μs; shutdown mode cuts idle current to 4μA, extending 2xAA battery life to 5+ years. |
| Industrial 4–20mA Transmitter Interface | Portable Medical Glucose Meter Analog Front-End |
Use Scenario: Converting 4–20mA loop current to 0–5V for microcontroller ADC sampling in factory automation transmitters. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with programmable gain and rail-to-rail output swing. Use Value: ±35mA drive capability sustains 5V output into 250Ω load (standard PLC input impedance); 2.5pA IB prevents gain error in 100kΩ sense resistor. |
Use Scenario: Amplifying amperometric current from glucose oxidase biosensors in handheld diagnostic meters. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier with programmable gain and auto-zero calibration path. Use Value: 250μV VOS limits glucose concentration error to <2mg/dL; shutdown mode reduces standby power to enable one-button wake-up with <10ms latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2474CDR | Same architecture and pinout, but rated for 0°C to +70°C only; 250μV VOS max at 25°C vs 1800μV over full industrial range for TLV2474AIDR. | Limited to commercial-grade consumer electronics; unsuitable for automotive or industrial ambient conditions. | Select TLV2474CDR only for cost-sensitive, non-temperature-critical applications where full industrial range is unnecessary. |
| OPA4340UA | Higher 5.5MHz GBW and lower 0.5μV/°C VOS drift, but consumes 750μA/channel and lacks shutdown function. | Better for high-speed, low-drift applications like precision data loggers; cannot replace TLV2474AIDR in battery-duty-cycle designs. | Choose OPA4340UA when bandwidth >2.8MHz or VOS drift <0.5μV/°C is mandatory, and shutdown is not required. |
Compared with TLV2474CDR, TLV2474AIDR adds guaranteed –40°C to +125°C operation and tighter VOS spec over temperature, while OPA4340UA trades shutdown capability for higher speed and lower drift - making TLV2474AIDR optimal for ruggedized, power-constrained sensor nodes.
Availability
TLV2474AIDR is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial sensor signal conditioning, and battery-powered data acquisition requiring stable component supply across extended temperature ranges.
Supply support for TLV2474AIDR 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 over 50 years of innovation in precision amplifiers and low-power signal chains.
The TLV247x family was designed specifically for ultra-low-power, high-output-drive rail-to-rail op-amp applications in portable medical, sensor interface, and industrial data acquisition systems operating from 2.7V to 6V supplies.
FAQ
What is the maximum capacitive load the TLV2474AIDR can drive without oscillation?
The TLV2474AIDR remains stable with capacitive loads up to 1000pF when a series nulling resistor (≥20Ω) is placed between the output pin and the load, as confirmed in Figure 18–21 of the SLOS232E datasheet. Without RNULL, oscillation may occur above 10pF due to phase margin degradation.
Does the TLV2474AIDR have built-in ESD protection, and what is its rating?
Yes, the TLV2474AIDR includes on-chip ESD protection diodes rated to ±2kV HBM (Human Body Model) per JEDEC JESD22-A114, as stated in the "ESD Information" section of the TI datasheet. Handling requires standard ESD precautions to avoid latent damage to the 2.5pA input bias circuitry.
Can the TLV2474AIDR operate from a 2.5V supply?
No - the absolute minimum supply voltage for TLV2474AIDR is 2.7V, as specified in the Recommended Operating Conditions table (Section 6.2). Operation below 2.7V risks undefined behavior, including failure to achieve rail-to-rail output swing and increased input offset voltage.
What is the thermal resistance θJA for the TLV2474AIDR in TSSOP-14 package?
The junction-to-ambient thermal resistance (θJA) for TLV2474AIDR in TSSOP-14 (PWP) package is 30.7°C/W, measured on a 2-layer PCB with 1in² copper pour per JEDEC JESD51-7 standards, as listed in the Dissipation Rating Table (Section 6.1).
Is the shutdown pin of TLV2474AIDR internally pulled up or down?
The TLV2474AIDR has no internal pull-up or pull-down on the shutdown pin (pin 13 is IN3−; shutdown is not implemented on this variant). TLV2474AIDR does not include shutdown functionality - only TLV2474AIPWP and TLV2475 variants feature SHDN pins, as confirmed in the Family Package Table and Pinouts section.
TLV2474AIDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLV2474AIDR FAQ
1.How can I place an order for TLV2474AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2474AIDR 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 TLV2474AIDR reliable?
The price and inventory of TLV2474AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2474AIDR is usually 5 days.
3.What payment methods are accepted for TLV2474AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2474AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2474AIDR?
TLV2474AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2474AIDR 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 TLV2474AIDR?
For technical support, including TLV2474AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2474AIDR requirements.
6.How does Aetrix verify that TLV2474AIDR is sourced from the original manufacturer or authorized distributors?
All TLV2474AIDR 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 TLV2474AIDR meets industry standards.
7.What is the process for return or replacement of TLV2474AIDR?
All TLV2474AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2474AIDR, 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 TLV2474AIDR part is unused and in its original packaging.
Return procedure for TLV2474AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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