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Texas Instruments TLV2473CDGQ
- Part No.:
- TLV2473CDGQ
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV2473CDGQ.pdf
- Description:
- IC CMOS 2 CIRCUIT 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,632
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Product details
Overview
TLV2473CDGQ from Texas Instruments is a dual-channel, rail-to-rail input/output CMOS operational amplifier with shutdown functionality, 2.8MHz gain-bandwidth product, 600μA per channel supply current, and ±35mA output drive at 500mV from rails. It operates from 2.7V to 6V and is used in portable medical sensors and low-voltage data acquisition systems.
For engineers reviewing the TLV2473CDGQ datasheet, TLV2473CDGQ pinout, TLV2473CDGQ application, or TLV2473CDGQ equivalent, key selection criteria include rail-to-rail I/O swing, ultra-low shutdown current (1000nA/ch at 5V), input bias current (2.5pA), and MSOP-10 package compatibility with space-constrained analog front-ends.
Technical Context
The TLV2473CDGQ integrates two independent high-drive op-amps sharing a common shutdown control line, enabling synchronized power gating. Its CMOS input stage delivers 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD), while the output stage supports ±35mA sourcing/sinking within 500mV of either rail.
Shutdown mode reduces supply current to 1000nA per channel at 5V, with turn-on/turn-off times of 5μs and 250ns respectively. The device maintains 61° phase margin into 1000pF loads and achieves 2.8MHz unity-gain bandwidth across 2.7V–6V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.8MHz - enables stable closed-loop operation up to ~280kHz at gain=10 without compensation. |
| Supply current per channel | 600μA - allows battery-powered operation for >1 year in 10μA average-current sensor nodes. |
| Input bias current | 2.5pA - minimizes voltage error in high-impedance pH or photodiode sensor interfaces. |
| Output drive capability | ±35mA at 500mV from rail - drives 10kΩ loads to full scale while maintaining linearity in active filters. |
| Shutdown current per channel | 1000nA at 5V - reduces system standby power to sub-μW levels in portable ECG monitors. |
| Input offset voltage | 250μV typical - ensures <0.01% gain error in 12-bit precision instrumentation amplifiers. |
| Supply voltage range | 2.7V to 6V - supports single-cell Li-ion (3.0–4.2V) and dual-cell alkaline (2.7–4.8V) power sources. |
Pinout & Package
TLV2473CDGQ is housed in a 10-pin MSOP (DGQ) package with exposed thermal pad, measuring 3.0mm × 3.0mm × 1.0mm. Pin 1 is marked by a beveled edge or molded dot; the package is RoHS-compliant and rated for industrial temperature range (–40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of ±35mA drive within 500mV of rails; requires no external pull-up/down. |
| 2 | IN− A | Inverting input A - high-impedance CMOS node; sensitive to PCB leakage and ESD. |
| 3 | IN+ A | Non-inverting input A - accepts signals from 0V to VDD; used for unity-gain buffers in sensor conditioning. |
| 4 | VDD | Positive supply - decoupling capacitor (0.1μF) required within 5mm for stability. |
| 5 | IN+ B | Non-inverting input B - electrically isolated from Channel A; enables dual-sensor simultaneous sampling. |
| 6 | IN− B | Inverting input B - shares same input stage architecture as Channel A; matched offset drift <0.4μV/°C. |
| 7 | OUT B | Amplifier B output - identical drive strength and rail-swing to OUT A; supports independent load switching. |
| 8 | GND | Analog ground - must be connected to low-impedance ground plane; separate from digital ground if mixed-signal layout. |
| 9 | SHDN | Active-low shutdown control - logic low (<0.8V) disables both amplifiers; high impedance when pulled to VDD. |
| 10 | NC | No internal connection - left unconnected; not used for thermal relief or grounding. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3V systems - e.g., 0–3.3V ADC input scaling without level-shifting. |
| Ultra-low shutdown current | 1000nA per channel at 5V - extends battery life in wearable devices during sleep cycles without external FET switches. |
| High output drive (±35mA) | Drives 10kΩ loads to rail while maintaining 2.8MHz GBW - eliminates need for external buffer stages in active filter designs. |
| Low input bias current (2.5pA) | Reduces voltage error in 10MΩ source impedances to <25μV - critical for precision thermistor and strain gauge signal chains. |
| Industrial temperature range | Specified from –40°C to +125°C - supports under-hood automotive sensor modules and industrial motor control feedback loops. |
Applications
| Portable Medical Sensors | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Amplifying microvolt-level EEG signals in battery-powered headsets with real-time noise filtering. IC Role / Device Role / Timing Role: Dual-channel signal conditioning amplifier - Channel A for differential biosignal amplification, Channel B for reference buffer and active filtering. Use Value: Rail-to-rail I/O preserves 99% of 3.3V ADC range; 2.5pA input bias prevents electrode polarization drift over multi-hour sessions. | Use Scenario: Signal conditioning for 12-bit SAR ADCs in handheld multimeters powered by two AA cells. IC Role / Device Role / Timing Role: Precision gain stage and anti-aliasing filter driver - configured as non-inverting amplifier (G=2) with Sallen-Key topology. Use Value: 250μV offset ensures <0.1 LSB error at 12-bit resolution; ±35mA drive sustains 10kΩ load without settling time penalty. |
| Industrial Process Monitoring | Portable Test Equipment |
Use Scenario: Conditioning 4–20mA loop sensor outputs in factory-floor temperature transmitters operating at 4.5V min supply. IC Role / Device Role / Timing Role: Current-to-voltage converter and output buffer - converts loop current to 0–5V while driving long cables. Use Value: 2.7V minimum supply allows operation down to end-of-battery; shutdown mode cuts quiescent current to 2μA total for remote wireless nodes. | Use Scenario: Input stage for handheld oscilloscope front-end handling ±5V signals with 10MΩ input impedance. IC Role / Device Role / Timing Role: High-Z probe buffer and DC-coupled gain block - provides unity-gain isolation and 10× attenuation switching. Use Value: 10¹²Ω input resistance prevents loading of passive probes; 2.8MHz GBW supports 100kHz bandwidth with <0.1dB flatness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2473IDGQ | Same electrical specs but rated for –40°C to +125°C industrial temp range; C-suffix version is 0°C to +70°C. | Required for automotive under-hood or outdoor industrial deployments where ambient exceeds 70°C. | Select TLV2473IDGQ when extended temperature qualification is mandatory; otherwise TLV2473CDGQ suffices for consumer/portable use. |
| OPA2340UA | Lower input offset (125μV typ), higher GBW (5.5MHz), but no shutdown function and 1.2mA/ch supply current. | Suitable for high-speed, high-precision applications where power gating is unnecessary and PCB area permits SOIC-8. | Choose OPA2340UA only when 5.5MHz bandwidth and lower offset outweigh 2× higher quiescent current and lack of shutdown control. |
Compared with TLV2473IDGQ, TLV2473CDGQ trades extended temperature rating for lower cost and sufficient performance in portable equipment; versus OPA2340UA, it offers integrated shutdown and micropower operation at the expense of bandwidth and offset precision.
Availability
TLV2473CDGQ is available at Aetrix Electronics and suitable for portable medical devices, industrial process transmitters, handheld test instruments, and low-power sensor nodes requiring stable component supply across production lifecycles.
Supply support for TLV2473CDGQ 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 90 years of innovation in precision analog ICs.
The TLV247x family was designed specifically for micropower, rail-to-rail signal conditioning in battery-operated and low-voltage industrial systems - balancing bandwidth, drive strength, and quiescent current.
FAQ
What is the maximum capacitive load the TLV2473CDGQ can drive without instability?
The TLV2473CDGQ maintains 61° phase margin into 1000pF loads with 10kΩ series resistance. For loads >10pF, TI recommends adding a 20Ω–100Ω null resistor (RNULL) in series with the output, as shown in Figure 42 of the datasheet. This prevents ringing or oscillation in active filter and cable-driving applications.
Does the TLV2473CDGQ support single-supply operation below 3V?
Yes, the TLV2473CDGQ is fully specified from 2.7V to 6V. At 2.7V, it delivers 2.8MHz gain-bandwidth, 600μA per channel supply current, and rail-to-rail output swing within 180mV of each rail under 10mA load - making it suitable for single-cell lithium-polymer (2.7–4.2V) and two-cell alkaline (2.7–3.2V) systems.
How does the shutdown pin (Pin 9) behave during power-up?
The TLV2473CDGQ's SHDN pin is active-low and internally pulled up. During power-up, if SHDN is left floating, the internal pull-up ensures both amplifiers enable automatically. For guaranteed behavior, tie SHDN to VDD through a 10kΩ resistor or drive actively - never leave unconnected in noise-prone environments.
Can the TLV2473CDGQ be used in inverting amplifier configurations with gain >10?
Yes, the TLV2473CDGQ supports stable inverting configurations up to gain=100 at DC and low frequencies. At higher gains, phase margin degrades with capacitive loads; TI recommends limiting closed-loop bandwidth to ≤280kHz for gain=10 and using RNULL compensation for gains >10 with reactive loads.
Is the TLV2473CDGQ pin-compatible with other MSOP-10 dual op-amps?
No - the TLV2473CDGQ uses a proprietary pinout optimized for dual-channel independence and shutdown control. Its Pin 9 (SHDN) and Pin 10 (NC) differ from standard dual op-amps like OPA2340UA (SOIC-8) or MCP6022 (MSOP-8). Layout redesign is required for substitution.
TLV2473CDGQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-HVSSOP
TLV2473CDGQ FAQ
1.How can I place an order for TLV2473CDGQ through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2473CDGQ 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 TLV2473CDGQ reliable?
The price and inventory of TLV2473CDGQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2473CDGQ is usually 5 days.
3.What payment methods are accepted for TLV2473CDGQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2473CDGQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2473CDGQ?
TLV2473CDGQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2473CDGQ 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 TLV2473CDGQ?
For technical support, including TLV2473CDGQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2473CDGQ requirements.
6.How does Aetrix verify that TLV2473CDGQ is sourced from the original manufacturer or authorized distributors?
All TLV2473CDGQ 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 TLV2473CDGQ meets industry standards.
7.What is the process for return or replacement of TLV2473CDGQ?
All TLV2473CDGQ units undergo pre-shipment inspection (PSI). If there is an issue with TLV2473CDGQ, 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 TLV2473CDGQ part is unused and in its original packaging.
Return procedure for TLV2473CDGQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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