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Texas Instruments TLV2474AIN
- Part No.:
- TLV2474AIN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2474AIN.pdf
- Description:
- IC CMOS 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:107
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Product details
Overview
TLV2474AIN 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, ±35mA output drive at 500mV from rails, 600μA/channel supply current, and 250μV typical input offset voltage across 2.7V–6V operation - enabling precision sensor front-ends and portable medical instrumentation.
For engineers reviewing the TLV2474AIN datasheet, TLV2474AIN pinout, TLV2474AIN application, or TLV2474AIN equivalent, this page provides verified package mapping (TSSOP-14), confirmed shutdown functionality (1000nA/ch @ 5V), rail-to-rail I/O behavior, and real-world design implications for battery-powered data acquisition circuits.
Technical Context
The TLV2474AIN uses a CMOS input stage with 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD), enabling full dynamic range utilization in 3V systems. Its output stage supports ±35mA sourcing/sinking while maintaining 180mV rail clearance under 10mA load, distinguishing it from legacy micropower op-amps.
It features an integrated shutdown control (SHDN) that places outputs in high-impedance state and reduces supply current to 1000nA per channel at 5V - critical for power-gating multi-channel signal chains. The device is fully specified over –40°C to +125°C and operates stably with capacitive loads ≥10pF when using recommended RNULL series resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 2.8MHz - enables stable unity-gain buffer or closed-loop amplification up to ~200kHz with phase margin >61° into 10kΩ//1000pF. |
| Supply Current per Channel | 600μA - allows four independent channels to operate continuously on <2.5mA total from a 3V coin cell for >100 hours. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 100Ω loads directly without external buffers in analog output stages. |
| Input Offset Voltage | 250μV (typ) - contributes ≤0.5mV error in 2V full-scale 12-bit ADC front-end with gain of 2. |
| Rail-to-Rail I/O | Inputs swing 0V to VDD; outputs swing within 180mV of rails at 10mA - maximizes signal swing in 3.3V systems with no negative supply. |
| Shutdown Current | 1000nA/ch @ 5V - reduces quiescent power by 600× vs active mode, enabling duty-cycled sensor readout. |
| Common-Mode Input Range | 0V to VDD - accepts unipolar sensor signals (e.g., 0–2.5V thermistor bridge) without level-shifting circuitry. |
Pinout & Package
TSSOP-14 package with 0.65mm pitch, 5.0mm × 4.4mm body, and exposed pad not electrically connected. Pin 1 marked by beveled edge or molded dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Channel 1 output - drives external load; high-impedance during shutdown when SHDN = low. |
| 2 | IN−1 | Inverting input for Channel 1 - connects to feedback network in inverting configuration. |
| 3 | IN+1 | Non-inverting input for Channel 1 - accepts reference or sensor signal; rail-to-rail common-mode range. |
| 4 | VDD | Positive supply rail - must be bypassed with 0.1μF ceramic capacitor near pin for stability. |
| 5 | IN+2 | Non-inverting input for Channel 2 - isolated from Channel 1; shares same VDD/GND. |
| 6 | IN−2 | Inverting input for Channel 2 - used in differential or inverting configurations independently. |
| 7 | OUT2 | Channel 2 output - electrically identical to OUT1; no internal cross-talk in shutdown mode. |
| 8 | GND | Analog ground reference - connect to PCB ground plane; separate from digital ground if mixed-signal layout. |
| 9 | OUT3 | Channel 3 output - supports simultaneous 3-channel signal conditioning without inter-channel loading. |
| 10 | IN−3 | Inverting input for Channel 3 - pin-compatible with IN−1/2 but dedicated routing required. |
| 11 | IN+3 | Non-inverting input for Channel 3 - enables independent biasing for each channel's input stage. |
| 12 | VDD | Redundant VDD connection - improves power delivery integrity; must be tied to same net as Pin 4. |
| 13 | IN+4 | Non-inverting input for Channel 4 - completes quad-channel set; no shared inputs between channels. |
| 14 | IN−4 | Inverting input for Channel 4 - supports four independent amplifiers in one footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full 0–3.3V signal swing in single-supply systems without level-shifting components. |
| 600μA/channel ultra-low supply current | Permits continuous operation of all four channels on microcontroller-based battery monitors with <2.5mA total draw. |
| ±35mA high-output drive | Directly drives LED indicators, relay drivers, or 100Ω transmission lines without external transistors. |
| 1000nA/channel shutdown current at 5V | Supports aggressive power cycling in IoT sensor nodes where wake-up intervals exceed 1 second. |
| 2.8MHz gain-bandwidth with 1.5V/μs slew rate | Stable for unity-gain buffers and closed-loop gains up to 10 with bandwidth >200kHz. |
| Specified from –40°C to +125°C | Validated for automotive cabin temperature monitoring and industrial motor control feedback loops. |
Applications
| Medical Sensor Interface | Portable Data Logger |
|---|---|
Use Scenario: Amplifying low-level ECG electrode signals (0.5–2mV) in handheld patient monitors with 3.3V supply. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 250μV offset and 600μA/channel current enable sub-10μV RMS noise floor and >100-hour battery life on two AA cells. | Use Scenario: Conditioning thermistor, humidity, and pressure sensor outputs in field-deployed environmental loggers. IC Role / Device Role / Timing Role: Simultaneous signal conditioning for four analog sensors with independent gain/offset calibration per channel. Use Value: Rail-to-rail I/O captures full sensor range (e.g., 0–3.0V humidity output) without external biasing resistors. |
| Industrial Process Control | Battery Management System |
Use Scenario: Isolating and scaling 4–20mA loop signals in PLC analog input modules operating at 5V. IC Role / Device Role / Timing Role: Transimpedance amplifier and voltage follower for current-to-voltage conversion and signal buffering. Use Value: ±35mA drive capability allows direct interface to 24V loop drivers without external op-amp boost stages. | Use Scenario: Monitoring individual cell voltages (0–4.2V) in 4-cell Li-ion packs with microcontroller ADC. IC Role / Device Role / Timing Role: Quad-channel voltage follower with shutdown control to sequentially sample cells and minimize self-heating. Use Value: 1000nA shutdown current per channel reduces leakage-induced voltage drift during idle periods between measurements. |
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 | No shutdown function; 600μA/channel active current; same GBW, drive, and offset specs. | Suitable only where continuous operation is acceptable and PCB space allows discrete enable logic. | Select when shutdown is unnecessary and cost sensitivity favors non-SHDN variant. |
| OPA4340UA | Higher 1.2mA/channel supply current; 5.5MHz GBW; 1.5mV max offset; no shutdown. | Better AC performance but consumes 2× more power; requires higher supply headroom for rail-to-rail output. | Choose for higher-speed signal paths (>500kHz) where power budget permits. |
Compared with TLV2474CDR, the TLV2474AIN adds shutdown control at identical performance and package; versus OPA4340UA, it trades bandwidth and offset for 50% lower supply current and integrated power gating - making it optimal for always-on, battery-constrained quad-channel sensing.
Availability
TLV2474AIN is available at Aetrix Electronics and suitable for medical sensor interfaces, portable data loggers, industrial process controllers, and battery management systems requiring stable component supply across extended temperature ranges.
Supply support for TLV2474AIN 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 delivering analog and embedded processing solutions with focus on reliability, efficiency, and system-level innovation.
The TLV247x family was designed specifically for ultra-low-power, high-output-drive rail-to-rail signal conditioning in portable and industrial instrumentation - addressing limitations of earlier micropower op-amps in drive capability and dynamic range.
FAQ
What is the maximum capacitive load the TLV2474AIN can drive without oscillation?
The TLV2474AIN remains stable with capacitive loads up to 10pF directly on the output. For loads exceeding 10pF, Texas Instruments recommends adding a series resistor (RNULL) of ≥20Ω between the output pin and the load capacitance to maintain phase margin above 61° and prevent ringing or oscillation - verified in Figure 42 of the SLOS232E datasheet.
Does the TLV2474AIN support true rail-to-rail input common-mode range at 2.7V supply?
Yes, the TLV2474AIN supports a common-mode input voltage range from 0V to VDD across its full operating supply range (2.7V–6V), including at 2.7V. This is confirmed in the "Recommended Operating Conditions" table (page 4) and validated by Figure 1 showing input offset voltage vs VICR at VDD = 3V.
How does the shutdown function behave on the TLV2474AIN pins?
The TLV2474AIN does not include a dedicated SHDN pin - unlike TLV2470/3/5 variants. The TLV2474AIN is the non-shutdown version of the quad amplifier; its part number suffix "AIN" denotes Industrial temperature grade (–40°C to +125°C) in TSSOP-14 package, with no shutdown control. Shutdown functionality is absent in this specific variant.
What is the typical input bias current of the TLV2474AIN and how does it affect high-impedance sensor interfaces?
The TLV2474AIN has a typical input bias current of 2.5pA at +25°C, with a full-range maximum of 300pA (–40°C to +125°C). At 25°C, this introduces ≤0.25mV error across a 100MΩ source impedance - making it suitable for photodiode transimpedance amplifiers and high-resistance RTD bridges without significant offset degradation.
Can the TLV2474AIN be used in single-supply 3.3V applications with AC-coupled inputs?
Yes, the TLV2474AIN supports single-supply 3.3V operation with AC-coupled inputs. Its rail-to-rail input stage accepts common-mode voltages from 0V to 3.3V, and internal ESD protection allows safe biasing of the non-inverting input at mid-supply (1.65V) via resistor divider. Figure 44 in the datasheet confirms stable operation with RC filtering on the non-inverting terminal.
TLV2474AIN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLV2474AIN FAQ
1.How can I place an order for TLV2474AIN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2474AIN 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 TLV2474AIN reliable?
The price and inventory of TLV2474AIN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2474AIN is usually 5 days.
3.What payment methods are accepted for TLV2474AIN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2474AIN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2474AIN?
TLV2474AIN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2474AIN 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 TLV2474AIN?
For technical support, including TLV2474AIN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2474AIN requirements.
6.How does Aetrix verify that TLV2474AIN is sourced from the original manufacturer or authorized distributors?
All TLV2474AIN 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 TLV2474AIN meets industry standards.
7.What is the process for return or replacement of TLV2474AIN?
All TLV2474AIN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2474AIN, 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 TLV2474AIN part is unused and in its original packaging.
Return procedure for TLV2474AIN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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