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Texas Instruments TLV2473AIDR
- Part No.:
- TLV2473AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2473AIDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,948
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Product details
Overview
TLV2473AIDR from Texas Instruments is a dual-channel, rail-to-rail input/output CMOS operational amplifier with shutdown functionality, delivering 2.8MHz gain-bandwidth, 600μA/channel supply current, and ±35mA output drive at 500mV from rails-ideal for low-voltage sensor signal conditioning in portable medical devices and battery-powered data acquisition systems.
For engineers reviewing the TLV2473AIDR datasheet, TLV2473AIDR pinout, TLV2473AIDR application, or TLV2473AIDR equivalent, key selection criteria include its 2.8MHz GBW at 600μA/channel, rail-to-rail I/O swing, 250μV typical input offset voltage, and active-low shutdown enabling <1μA/channel quiescent current in power-sensitive designs.
Technical Context
The TLV2473AIDR employs a CMOS input stage enabling 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD), while its output stage supports true rail-to-rail swing under ±10mA load (within 180mV of rails) and high-current sourcing/sinking (±35mA at 500mV off rail). It operates across 2.7V–6V single-supply or ±1.35V–±3V split-supply configurations.
Its integrated shutdown control (active-low, VIH = 2V, VIL = 0.8V) places outputs in high-impedance state and reduces supply current to 350nA/channel at 3V or 1000nA/channel at 5V. The device is fully specified over –40°C to +125°C and features 61° phase margin into 1000pF capacitive load with 10kΩ feedback 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 ~2.5MHz with adequate phase margin |
| Supply Current per Channel | 600μA - ultra-low power operation suitable for always-on sensor front-ends with battery life constraints |
| Input Offset Voltage (typ) | 250μV - supports precision DC-coupled amplification of mV-level sensor signals without significant error |
| Output Drive Capability | ±35mA at 500mV from rail - drives moderate loads (e.g., ADC reference buffers, LED drivers, or analog multiplexers) without external boost |
| Rail-to-Rail I/O | Full swing input (0V to VDD) and output (within 180mV of rails at 10mA) - maximizes dynamic range in 3V/5V systems |
| Shutdown Current (per ch) | 350nA at 3V - enables microamp-level system sleep mode for extended battery runtime |
| Common-Mode Rejection | 88dB (typ at 25°C) - rejects noise on shared sensor ground or supply lines in noisy industrial environments |
Pinout & Package
TLV2473AIDR is housed in a 10-pin MSOP (DGQ) package with exposed thermal pad, optimized for space-constrained PCB layouts and thermal performance in dual-amplifier applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting amplifier output channel 1 - directly interfaces with downstream circuitry (e.g., ADC input or filter stage) |
| 2 | IN−1 | Inverting input channel 1 - connects to feedback network or sensor signal path requiring inversion |
| 3 | IN+1 | Non-inverting input channel 1 - accepts high-impedance sensor inputs (e.g., thermistor, bridge, or photodiode) |
| 4 | VDD | Positive supply rail - must be decoupled with ≥0.1μF ceramic capacitor near pin for stability |
| 5 | IN+2 | Non-inverting input channel 2 - independent signal path for differential pair or dual-sensor conditioning |
| 6 | IN−2 | Inverting input channel 2 - supports independent feedback configuration per channel |
| 7 | OUT2 | Inverting amplifier output channel 2 - provides second analog signal path without cross-talk |
| 8 | GND | Analog ground reference - requires low-impedance connection to system ground plane |
| 9 | SHDN | Active-low shutdown control - logic-low (≤0.8V) disables both amplifiers; logic-high (≥2V) enables operation |
| 10 | NC | No internal connection - left unconnected; no routing or soldering required |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 2.7V–6V supply range - preserves signal headroom in low-voltage systems |
| 600μA/channel supply current | Reduces total system power by >50% vs. legacy rail-to-rail op-amps - extends battery life in portable instruments |
| 2.8MHz gain-bandwidth product | Supports accurate amplification of sensor signals up to ~200kHz with <0.1% gain error - meets medical ECG and pulse oximetry bandwidth needs |
| Active-low shutdown with 350nA/ch current | Allows synchronized power gating of both channels - eliminates leakage paths during system standby |
| ±35mA output drive capability | Drives 10kΩ loads to rail with <10mV error and sources/sinks 20mA into 500Ω - eliminates need for external buffer stages |
| Specified over –40°C to +125°C | Validates performance in automotive cabin modules, industrial PLC I/O, and outdoor environmental sensors |
Applications
| Portable ECG Monitor Front-End | Industrial Temperature Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying low-amplitude, high-impedance biopotential signals from dry electrodes in battery-powered ECG patches. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before 16-bit SAR ADC sampling. Use Value: 250μV offset and 2.8MHz GBW enable sub-μV resolution and 100Hz+ bandwidth capture without DC drift or settling errors. |
Use Scenario: Conditioning output from Pt100 RTD or thermistor bridges in factory-floor temperature transmitters. IC Role / Device Role / Timing Role: Precision voltage follower and excitation current buffer driving 4–20mA loop drivers or sigma-delta ADC references. Use Value: Rail-to-rail I/O and ±35mA drive ensure accurate 0–5V scaling across full temperature range without external components. |
| Battery-Powered Gas Detector | Low-Power IoT Environmental Node |
Use Scenario: Amplifying nanoamp-level current from electrochemical gas sensors in handheld safety monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable gain and shutdown-controlled biasing for intermittent measurement cycles. Use Value: 2.5pA input bias current minimizes sensor loading error; 350nA shutdown current extends 10-year battery life. |
Use Scenario: Signal conditioning for multi-sensor nodes (humidity, pressure, VOC) in smart building wireless nodes. IC Role / Device Role / Timing Role: Shared dual-op-amp resource for analog multiplexing, reference buffering, and anti-alias filtering prior to MCU ADC. Use Value: Dual-channel integration reduces BOM count and PCB area; 600μA/channel enables continuous sensing at <100μA average system current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2473CDR | Same architecture and pinout, but C-suffix rated for 0°C to +70°C only; 250μV max VIO (vs. 1600μV for TLV2473AIDR over full temp range) | Suitable for commercial-grade consumer electronics, not industrial or automotive ambient conditions | Select when operating temperature stays within 0°C–70°C and tighter initial offset is prioritized over wide-temp stability |
| OPA2333AIDR | Zero-drift architecture; 0.02μV/°C offset drift vs. 0.4μV/°C for TLV2473AIDR; higher 350kHz GBW but 17μA/channel supply current | Better for DC-precision applications (e.g., weigh scales), less suitable for battery-powered AC-coupled sensor front-ends | Choose for ultra-low drift requirements where power budget allows >25× higher quiescent current |
Compared with TLV2473CDR, TLV2473AIDR offers guaranteed performance over –40°C to +125°C and superior long-term offset stability; versus OPA2333AIDR, it delivers 28× lower supply current at the cost of higher offset drift-making it optimal for wide-temp, low-power signal chains where microvolt-level drift is acceptable.
Availability
TLV2473AIDR is available at Aetrix Electronics and suitable for portable medical devices, industrial temperature transmitters, battery-powered gas detectors, and low-power IoT environmental nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2473AIDR 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 expertise in precision amplifiers and low-power signal conditioning solutions.
The TLV247x family was designed specifically for battery-operated and low-voltage industrial systems requiring rail-to-rail performance, micropower efficiency, and robust shutdown control-addressing limitations of earlier generation op-amps in sensor interface applications.
FAQ
What is the maximum supply voltage for TLV2473AIDR?
The absolute maximum supply voltage for TLV2473AIDR is 7V, but the recommended operating range is 2.7V to 6V. Operation beyond 6V risks exceeding safe power dissipation limits and may degrade long-term reliability. At 6V, the device maintains full rail-to-rail output swing and specified 2.8MHz gain-bandwidth, making it ideal for 5V industrial systems or dual-cell Li-ion (8.4V max) with regulator staging.
Does TLV2473AIDR support true rail-to-rail input common-mode range?
Yes, TLV2473AIDR supports a true rail-to-rail input common-mode voltage range from 0V to VDD. This is enabled by its complementary CMOS input stage, allowing direct interfacing with sensors referenced to ground or VDD-such as resistive bridges or current-output photodiodes-without level-shifting circuitry. Input bias current remains stable across this full range, minimizing offset variation.
How does the shutdown function behave on TLV2473AIDR?
The TLV2473AIDR features an active-low shutdown pin (SHDN) that places both amplifier outputs in high-impedance state and reduces total supply current to 350nA per channel at 3V (1000nA at 5V). The enable threshold is VIH ≥ 2V and VIL ≤ 0.8V relative to GND. Turn-on time is 5μs; turn-off time is 250ns-enabling rapid power cycling in duty-cycled sensor systems without compromising signal integrity.
Can TLV2473AIDR drive capacitive loads without oscillation?
TLV2473AIDR can safely drive ≤10pF capacitive loads directly. For larger loads (e.g., ADC input capacitance or cable termination), TI recommends adding a series null resistor (RNULL) of ≥20Ω between the output and load, as shown in Figure 42 of the datasheet. This preserves phase margin (>61° into 1000pF with RNULL=20Ω) and prevents ringing or instability-critical for precision data acquisition timing.
What is the typical input offset voltage drift over temperature for TLV2473AIDR?
The TLV2473AIDR has a typical input offset voltage drift of 0.4μV/°C, measured across the full –40°C to +125°C operating range. This low drift ensures minimal DC error accumulation in temperature-varying environments-such as automotive cabin sensors or outdoor environmental monitors-where offset shift could otherwise dominate measurement uncertainty over wide ambient swings.
TLV2473AIDR 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:
- 2
- 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 (x2 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
TLV2473AIDR FAQ
1.How can I place an order for TLV2473AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2473AIDR 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 TLV2473AIDR reliable?
The price and inventory of TLV2473AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2473AIDR is usually 5 days.
3.What payment methods are accepted for TLV2473AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2473AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2473AIDR?
TLV2473AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2473AIDR 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 TLV2473AIDR?
For technical support, including TLV2473AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2473AIDR requirements.
6.How does Aetrix verify that TLV2473AIDR is sourced from the original manufacturer or authorized distributors?
All TLV2473AIDR 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 TLV2473AIDR meets industry standards.
7.What is the process for return or replacement of TLV2473AIDR?
All TLV2473AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2473AIDR, 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 TLV2473AIDR part is unused and in its original packaging.
Return procedure for TLV2473AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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