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Texas Instruments TLV2472CDGNR
- Part No.:
- TLV2472CDGNR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TLV2472CDGNR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,708
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Product details
Overview
TLV2472CDGNR from Texas Instruments is a dual-channel, rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, high-output-drive applications. 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 supply range - ideal for precision sensor signal conditioning in battery-powered medical devices.
For engineers reviewing the TLV2472CDGNR datasheet, TLV2472CDGNR pinout, TLV2472CDGNR application, or TLV2472CDGNR equivalent, key selection criteria include its rail-to-rail I/O swing, shutdown capability (1000nA/ch at 5V), low input bias current (2.5pA), and MSOP-8 package compatibility with space-constrained analog front-ends.
Technical Context
The TLV2472CDGNR employs a CMOS input stage enabling 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD). Its output stage supports true rail-to-rail swing - delivering ±35mA into loads 500mV from either rail - resolving a key limitation of legacy micropower op-amps.
It integrates independent shutdown control per channel (SHDN pin) that places outputs in high-impedance state while reducing supply current to 1000nA/channel at 5V. The device is fully specified over 0°C to +70°C (C-suffix) and operates stably with capacitive loads ≥10pF when using recommended series nulling resistor (RNULL ≥20Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 6V - enables direct operation from single-cell Li-ion (3.0–4.2V) or two-cell alkaline (3.0–3.6V) without regulation. |
| Gain-Bandwidth Product | 2.8MHz - supports stable closed-loop gain up to ~28 at 100kHz for anti-aliasing filter interfaces. |
| Input Offset Voltage | 250μV (typ) - ensures ≤0.5mV error in 2V full-scale 12-bit ADC front-end with unity-gain buffer. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 100Ω loads directly (e.g., 50Ω transmission line + 50Ω termination) without external buffers. |
| Shutdown Current | 1000nA/channel at 5V - extends battery life >100× vs active mode in intermittent-sampling systems. |
| Input Bias Current | 2.5pA - minimizes voltage error across high-impedance sources (e.g., pH electrodes, piezoelectric sensors). |
| Common-Mode Input Range | 0V to VDD - accepts signals spanning full supply, simplifying single-supply level-shifting in sensor interfaces. |
Pinout & Package
TLV2472CDGNR is housed in an 8-pin MSOP (DGN) package with exposed thermal pad (PowerPAD™), measuring 3.0mm × 3.0mm × 1.0mm - optimized for thermal performance and PCB area efficiency in portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Channel 1 output | Delivers rail-to-rail voltage swing; capable of ±35mA sourcing/sinking at 500mV from rails. |
| 2 (IN−1) | Channel 1 inverting input | High-impedance CMOS node; 2.5pA bias current enables use with MΩ-range feedback networks. |
| 3 (IN+1) | Channel 1 non-inverting input | Accepts common-mode signals from 0V to VDD; supports single-supply sensor biasing without level shift. |
| 4 (GND) | Analog ground reference | Primary return path for both channels; must be connected to low-impedance system ground plane. |
| 5 (IN+2) | Channel 2 non-inverting input | Independent high-Z input; enables dual-sensor buffering or differential pair configuration. |
| 6 (IN−2) | Channel 2 inverting input | Matched to Pin 2; supports precise dual-channel instrumentation amplifier topologies. |
| 7 (OUT2) | Channel 2 output | Functionally identical to Pin 1; allows independent loading and layout isolation per channel. |
| 8 (VDD) | Positive supply rail | Accepts 2.7V–6V; internal ESD protection rated to ±2kV HBM; requires local 100nF ceramic decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3V systems - e.g., 0–3V sensor output mapped directly to 0–3V ADC input. |
| Ultra-low 600μA/channel quiescent current | Permits continuous operation in coin-cell-powered devices (e.g., glucose monitors) for >1 year on CR2032. |
| Independent per-channel shutdown | Allows selective power gating - e.g., disable Channel 2 during standby while keeping Channel 1 active for wake-up detection. |
| 2.5pA input bias current | Reduces offset drift in high-gain transimpedance amplifiers used with photodiodes or ion-selective electrodes. |
| Stable driving of ≥100pF capacitive loads | Eliminates need for external isolation resistors in LCD bias or DAC output buffering applications. |
| Specified from –40°C to +125°C (I-suffix variants) | Validates performance in automotive cabin modules or industrial motor controllers without derating. |
Applications
| Portable ECG Monitor Front-End | Industrial 4–20mA Loop Receiver |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes with minimal noise and DC drift. IC Role / Device Role / Timing Role: Dual-channel rail-to-rail buffer and gain stage - Channel 1 for lead-I differential input, Channel 2 for right-leg drive (RLD) feedback. Use Value: 2.5pA input bias current prevents electrode polarization; 250μV offset ensures <1% error in 25mV ECG amplitude measurement. |
Use Scenario: Converting 4–20mA loop current to 0.5–2.5V for ADC sampling in PLC analog input modules. IC Role / Device Role / Timing Role: Precision I-to-V converter with programmable gain (via external resistor) and output clamping. Use Value: ±35mA output drive sustains 2.5V across 100Ω load + ADC input impedance; rail-to-rail output guarantees full 0.5–2.5V span. |
| Wireless Sensor Node Signal Chain | Battery-Powered Gas Detector |
|
Use Scenario: Conditioning output from MEMS accelerometer and temperature sensor before SAR ADC sampling. IC Role / Device Role / Timing Role: Dual-channel low-noise amplifier - one channel for sensor gain, second for reference buffer or filtering. Use Value: 600μA/channel current enables 10Hz sampling at <10μA average system current; shutdown mode reduces idle draw to 1μA total. |
Use Scenario: Amplifying low-current output from electrochemical gas sensor (e.g., CO, NO₂) with high source impedance. IC Role / Device Role / Timing Role: Transimpedance amplifier with guarded input and low-offset DC restoration. Use Value: 2.5pA bias current avoids significant error in 100nA–1μA sensor currents; rail-to-rail output interfaces directly to 3V ADC reference. |
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 |
|---|---|---|---|
| TLV2462CDR | Higher 550μA/channel supply current, 6.4MHz GBW, ±90mA output drive - but no shutdown function. | Better for high-speed active filters or driving heavier loads; unsuitable where ultra-low standby power is required. | Choose TLV2462CDR when bandwidth or output current outweighs shutdown necessity. |
| OPA2340UA/2K5 | Lower 550μA/channel current, 5.5MHz GBW, ±20mA drive, rail-to-rail output only (not input); no shutdown. | Superior AC performance for audio or higher-frequency sensor signals; lacks rail-to-rail input for true single-supply DC coupling. | Choose OPA2340UA/2K5 for applications needing >5MHz bandwidth without input rail-to-rail requirement. |
Compared with TLV2472CDGNR, TLV2462CDR offers higher speed and drive at cost of missing shutdown, while OPA2340UA/2K5 trades input rail-to-rail capability for greater bandwidth - making TLV2472CDGNR optimal for precision, low-power, single-supply DC-coupled systems requiring flexible power management.
Availability
TLV2472CDGNR is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20mA receivers, and wireless sensor nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TLV2472CDGNR 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 op-amps and low-power signal chain solutions.
The TLV247x family was designed specifically for battery-operated instrumentation and sensor interface applications demanding rail-to-rail operation, micropower consumption, and robust output drive - addressing limitations of earlier CMOS op-amps.
FAQ
What is the maximum capacitive load the TLV2472CDGNR can drive without oscillation?
The TLV2472CDGNR remains stable with capacitive loads up to 100pF when using the recommended series nulling resistor (RNULL ≥20Ω) at the output. For loads >10pF, TI's datasheet Figure 42 specifies RNULL placement to maintain ≥61° phase margin - critical for reliable operation in DAC output buffering or LCD bias circuits. Without RNULL, instability may occur above ~10pF.
Does the TLV2472CDGNR support true rail-to-rail input common-mode range?
Yes, the TLV2472CDGNR supports a common-mode input voltage range from 0V to VDD - verified across 2.7V–6V supply and full temperature range. This enables direct interfacing with sensors whose output spans the entire supply (e.g., bridge-based pressure sensors), eliminating level-shifting circuitry and associated errors in TLV2472CDGNR designs.
What is the shutdown behavior of the TLV2472CDGNR outputs?
When SHDN is pulled low (≤0.8V), both TLV2472CDGNR outputs enter high-impedance state - effectively disconnecting them from the load. Output leakage remains <10nA, and supply current drops to 1000nA/channel at 5V. This allows safe multiplexing of multiple TLV2472CDGNR outputs onto shared buses or ADC inputs without contention.
How does input offset voltage drift affect precision over temperature in TLV2472CDGNR?
The TLV2472CDGNR exhibits a temperature coefficient of input offset voltage (αVIO) of 0.4μV/°C. Over a 0°C to 70°C ambient range, this contributes ≤28μV additional drift beyond the 250μV typical room-temperature offset - well within tolerance for 12-bit systems (LSB = 1.22mV at 5V full-scale) and acceptable for most medical-grade sensor interfaces using TLV2472CDGNR.
Can TLV2472CDGNR operate from a 2.7V supply while maintaining full rail-to-rail output swing?
Yes, the TLV2472CDGNR maintains rail-to-rail output swing down to 2.7V supply - delivering ±10mA within 180mV of each rail and ±35mA within 500mV. At 2.7V, this yields usable output range of 0.18V to 2.52V (for ±10mA) or 0.5V to 2.2V (for ±35mA), enabling direct interfacing with 2.5V or 3.3V ADC references in TLV2472CDGNR-based data acquisition systems.
TLV2472CDGNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TLV2472CDGNR FAQ
1.How can I place an order for TLV2472CDGNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2472CDGNR 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 TLV2472CDGNR reliable?
The price and inventory of TLV2472CDGNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2472CDGNR is usually 5 days.
3.What payment methods are accepted for TLV2472CDGNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2472CDGNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2472CDGNR?
TLV2472CDGNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2472CDGNR 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 TLV2472CDGNR?
For technical support, including TLV2472CDGNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2472CDGNR requirements.
6.How does Aetrix verify that TLV2472CDGNR is sourced from the original manufacturer or authorized distributors?
All TLV2472CDGNR 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 TLV2472CDGNR meets industry standards.
7.What is the process for return or replacement of TLV2472CDGNR?
All TLV2472CDGNR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2472CDGNR, 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 TLV2472CDGNR part is unused and in its original packaging.
Return procedure for TLV2472CDGNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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