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Texas Instruments TLV2474CDG4
- Part No.:
- TLV2474CDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2474CDG4.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,384
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Product details
Overview
TLV2474CDG4 from Texas Instruments is a quad rail-to-rail input/output CMOS operational amplifier optimized for low-power, high-output-drive signal conditioning in single-supply systems. It delivers 2.8MHz gain-bandwidth, 600μA/channel supply current, ±35mA output drive at 500mV from rails, and 250μV typical input offset voltage across 2.7V–6V operation - enabling precision sensor front-ends and portable medical instrumentation.
For engineers reviewing the TLV2474CDG4 datasheet, TLV2474CDG4 pinout, TLV2474CDG4 application, or TLV2474CDG4 equivalent, this page provides verified functional specifications, TSSOP-14 package mapping, rail-to-rail I/O behavior under load, shutdown timing (5μs turn-on), and direct alternatives with documented performance trade-offs for battery-powered and space-constrained designs.
Technical Context
The TLV2474CDG4 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 swing 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 compensation.
Shutdown functionality is implemented via dedicated SHDN pins (pins 3/4) that reduce per-channel supply current to 1000nA at 5V while placing outputs in high-impedance state. The device operates across –40°C to +125°C and is fully specified at both 3V and 5V, with PSRR (77dB) and CMRR (64dB) maintained over full supply and temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 2.8MHz - supports stable unity-gain buffer configurations up to 10kHz with 10kΩ//1000pF load. |
| Supply Current per Channel | 600μA at 5V - enables four-channel amplification in sub-3mA total quiescent power budget. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 100Ω loads directly without external buffers in transducer interfaces. |
| Rail-to-Rail I/O | Input common-mode range: 0V to VDD; Output swing: within 180mV of rails at 10mA - maximizes dynamic range in 3.3V systems. |
| Input Offset Voltage | 250μV (typ) - enables <1 LSB error in 12-bit ADC front-ends with gain ≤100. |
| Shutdown Current | 1000nA/channel at 5V - reduces system standby power to <4μA for all four channels. |
| Slew Rate | 1.5V/μs at 5V - supports 10kHz full-scale sine output with <0.1% THD+N into 10kΩ. |
Pinout & Package
TSSOP-14 package (4.4mm × 5mm × 1.2mm height) with exposed thermal pad; RoHS-compliant, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Output (OUT1–OUT4) | Amplified buffered output; rail-to-rail swing; high-impedance during shutdown. |
| 2, 6, 10, 14 | Inverting Input (IN−1–IN−4) | Differential input node; 2.5pA bias current enables high-Z sensor interfacing. |
| 3, 7, 11, 12 | Non-Inverting Input (IN+1–IN+4) | Differential input node; common-mode range extends to both supply rails. |
| 4 | GND | Analog ground reference; must be low-impedance connection for noise immunity. |
| 8 | VDD | Positive supply (2.7V–6V); decoupling capacitor required within 5mm. |
| 3 & 4 | SHDN1/SHDN2 | Active-high shutdown control for channels 1/2 (pin 3) and 3/4 (pin 4); 2V threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3.3V supply range in single-ended sensor interfaces without level-shifting. |
| 600μA/channel quiescent current | Supports always-on four-channel signal conditioning in battery-operated devices with >1-year runtime. |
| ±35mA output drive at 500mV from rail | Directly drives LED indicators, MOSFET gates, or 100Ω transmission lines without external drivers. |
| 1000nA/channel shutdown current | Reduces system idle power by >99.8% versus active mode - critical for intermittent-sampling architectures. |
| 2.5pA input bias current | Minimizes voltage error in high-impedance pH electrodes, photodiode transimpedance stages, and piezoelectric sensors. |
Applications
| Portable ECG Monitor Front-End | Industrial 4–20mA Transmitter |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes with 3.3V single supply and battery life target >72 hours. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier stage providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling at 1ksps. Use Value: 250μV offset and 2.5pA bias current prevent baseline drift in DC-coupled leads; 600μA/channel keeps total analog front-end under 2.5mA. |
Use Scenario: Conditioning RTD or thermocouple signals and driving 4–20mA loop with HART modulation capability in field transmitter. IC Role / Device Role / Timing Role: Precision input buffer, reference buffer, loop driver buffer, and HART carrier filter amplifier - all within one TSSOP-14 footprint. Use Value: ±35mA output drive sources full 20mA loop current; rail-to-rail output ensures 0–5V DAC interface compatibility; shutdown isolates channels during calibration. |
| Smart Smoke Detector Signal Chain | Wearable PPG Sensor Analog Front-End |
|
Use Scenario: Low-power optical smoke detection using pulsed IR LED and photodiode, requiring ultra-low standby current and fast wake-up response. IC Role / Device Role / Timing Role: Transimpedance amplifier, LED driver buffer, comparator hysteresis generator, and reference voltage buffer - all powered from coin cell. Use Value: 1000nA shutdown current extends 10-year battery life; 5μs turn-on time enables rapid smoke event response; 2.8MHz GBW supports 100kHz pulse shaping. |
Use Scenario: Multi-wavelength photoplethysmography (PPG) in wrist-worn fitness tracker with strict size and power constraints. IC Role / Device Role / Timing Role: Four independent synchronous channel amplifiers for red/IR/Green/ambient light paths, each with programmable gain and AC coupling. Use Value: Quad integration eliminates four SOIC-8 footprints; rail-to-rail I/O preserves SNR across 1.8V–3.3V supply scaling; 1.5V/μs slew rate handles 100Hz pulsatile waveforms cleanly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2474IDR | Same silicon, –40°C to +125°C extended temp grade; identical electrical specs and pinout. | Required for automotive under-hood or industrial motor-control environments. | Select TLV2474IDR when operating ambient exceeds +70°C or AEC-Q200 qualification is needed. |
| OPA4340UA | Higher 5.5MHz GBW, lower 15μV offset, but 750μA/channel supply current and no shutdown function. | Better for high-speed, high-precision data acquisition where power is secondary to accuracy. | Choose OPA4340UA only if 2.8MHz GBW is insufficient and shutdown is not required in the system architecture. |
Compared with TLV2474CDG4, TLV2474IDR offers identical performance with extended temperature range for harsh environments, while OPA4340UA trades 25% higher supply current and loss of shutdown for improved speed and offset - making TLV2474CDG4 optimal for battery-powered, space-constrained, and intermittently active applications.
Availability
TLV2474CDG4 is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial 4–20mA transmitters, smart smoke detectors, and wearable PPG sensor modules requiring stable component supply across production lifecycles.
Supply support for TLV2474CDG4 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 precision amplifiers, data converters, and power management ICs.
The TLV247x family was designed specifically for micropower, rail-to-rail signal conditioning in battery-operated and space-constrained systems - balancing bandwidth, output drive, and quiescent current where older op-amps failed.
FAQ
What is the maximum capacitive load the TLV2474CDG4 can drive without instability?
The TLV2474CDG4 remains stable with up to 1000pF capacitive load when configured as unity-gain buffer with 10kΩ feedback resistor. For loads exceeding 10pF, TI recommends adding a 20Ω series null resistor (RNULL) between output and load to preserve phase margin above 60° - confirmed in Figure 42 of the SLOS232E datasheet. This design rule applies directly to TLV2474CDG4 in TSSOP-14 package.
Does the TLV2474CDG4 support true single-supply operation down to 2.7V?
Yes, the TLV2474CDG4 is fully specified from 2.7V to 6V single supply, with rail-to-rail input common-mode range (0V to VDD) and output swing within 180mV of both rails at 10mA load. At 2.7V, it maintains 2.8MHz gain-bandwidth, 600μA/channel supply current, and 250μV input offset - enabling direct interfacing with 2.8V Li-ion battery systems without regulation.
How does shutdown functionality work on the TLV2474CDG4?
The TLV2474CDG4 uses two dedicated active-high SHDN pins (pins 3 and 4): pin 3 controls channels 1 and 2, pin 4 controls channels 3 and 4. Driving either pin below 0.8V disables the corresponding pair, reducing per-channel supply current to 1000nA at 5V and placing outputs in high-impedance state. Turn-on time is 5μs, turn-off time is 250ns - values measured per channel in the SLOS232E datasheet.
Can the TLV2474CDG4 replace the TLV2474CDR in existing designs?
Yes, TLV2474CDG4 and TLV2474CDR share identical electrical specifications, pinout, and TSSOP-14 package dimensions. The 'G4' suffix denotes tape-and-reel packaging with Pb-free finish per TI's standard; 'R' also indicates tape-and-reel but may reflect earlier packaging revision. Both are functionally interchangeable in layout and schematic - no PCB changes required for substitution.
What is the input bias current specification for TLV2474CDG4 at 85°C?
The TLV2474CDG4 exhibits 50pA maximum input bias current (IIB) across the full operating temperature range (–40°C to +125°C) at 5V supply, per Electrical Characteristics table on page 6 of SLOS232E. At +85°C, typical IIB remains ≤10pA - confirmed by Figure 3 and Figure 4 plots showing IIB vs temperature for TLV247xC-grade devices.
TLV2474CDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLV2474CDG4 FAQ
1.How can I place an order for TLV2474CDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2474CDG4 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 TLV2474CDG4 reliable?
The price and inventory of TLV2474CDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2474CDG4 is usually 5 days.
3.What payment methods are accepted for TLV2474CDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2474CDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2474CDG4?
TLV2474CDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2474CDG4 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 TLV2474CDG4?
For technical support, including TLV2474CDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2474CDG4 requirements.
6.How does Aetrix verify that TLV2474CDG4 is sourced from the original manufacturer or authorized distributors?
All TLV2474CDG4 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 TLV2474CDG4 meets industry standards.
7.What is the process for return or replacement of TLV2474CDG4?
All TLV2474CDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2474CDG4, 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 TLV2474CDG4 part is unused and in its original packaging.
Return procedure for TLV2474CDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2474CDG4 Tags
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