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Texas Instruments TLV2472CDR
- Part No.:
- TLV2472CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2472CDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,492
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Product details
Overview
TLV2472CDR from Texas Instruments is a dual-channel, rail-to-rail input/output CMOS operational amplifier optimized for 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 - enabling precision signal conditioning in battery-powered sensor interfaces and portable medical devices.
For engineers reviewing the TLV2472CDR datasheet, TLV2472CDR pinout, TLV2472CDR application, or TLV2472CDR equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The TLV2472CDR implements a CMOS input stage with rail-to-rail common-mode input range (0V to VDD) and rail-to-rail output swing, supporting full dynamic range in single-supply systems down to 2.7V. Its 2.8MHz unity-gain bandwidth and 1.5V/μs slew rate enable stable closed-loop operation with capacitive loads up to 1000pF when properly compensated.
Each channel features independent shutdown control via dedicated SHDN pins, reducing quiescent current to 350nA at 3V (1000nA at 5V) while placing outputs in high-impedance state. Input bias current is 2.5pA (typ), enabling high-impedance source interfacing without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 6V - supports direct integration into Li-ion (3.0–4.2V) and 5V logic systems without level-shifting. |
| Gain-Bandwidth Product | 2.8MHz - enables stable unity-gain buffer or gain-of-10 amplification up to ~280kHz with phase margin ≥61°. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 10Ω loads directly (e.g., 50Ω transmission lines with series termination) without external buffers. |
| Input Offset Voltage | 250μV (typ) - contributes ≤0.025% error in 1V full-scale 12-bit ADC front-end designs. |
| Supply Current per Channel | 600μA (typ at 3V) - allows dual-opamp operation within 1.2mA total, suitable for always-on sensor nodes with 10-year battery life. |
| Shutdown Current per Channel | 350nA at 3V - reduces system standby power by >99.9% versus active mode, critical for intermittent-sampling architectures. |
| Input Bias Current | 2.5pA (typ) - permits use with >100MΩ sensor elements (e.g., piezoresistive strain gauges, pH electrodes) without significant offset drift. |
Pinout & Package
TLV2472CDR is packaged in an 8-pin MSOP (DGN) with exposed thermal pad, measuring 3.0mm × 3.0mm × 1.0mm. This ultra-small outline supports high-density PCB layouts in space-constrained portable equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Channel 1 output | Delivers rail-to-rail voltage swing; requires no pull-up/down for high-Z shutdown state. |
| 1IN− | Channel 1 inverting input | High-impedance CMOS node; sensitive to PCB leakage - guard ring recommended for <1pA bias applications. |
| 1IN+ | Channel 1 non-inverting input | Accepts signals from 0V to VDD; enables true single-supply instrumentation amplifier configurations. |
| GND | Analog ground reference | Must be connected to low-impedance system ground plane; separate from digital ground if mixed-signal layout used. |
| VDD | Positive supply rail | Accepts 2.7–6V; decoupling capacitor (0.1μF ceramic) required within 5mm of pin for stability. |
| 2IN+ | Channel 2 non-inverting input | Independent of Channel 1; supports dual-sensor simultaneous sampling with matched DC performance. |
| 2IN− | Channel 2 inverting input | Electrically identical to 1IN−; differential pair matching ensures <10μV inter-channel offset drift. |
| 2OUT | Channel 2 output | Functionally identical to 1OUT; both outputs can drive separate loads without crosstalk degradation (−60dB @ 1MHz). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full utilization of 2.7–6V supply range - eliminates need for negative rail or level-shifting in single-supply data acquisition. |
| 600μA/channel supply current | Permits dual op-amp integration in sub-1.5mA system budgets - ideal for wearable ECG monitors and IoT edge nodes. |
| ±35mA output drive at 500mV from rail | Drives 10Ω loads directly (e.g., 50Ω coax with 40Ω series resistor), reducing BOM count vs. discrete buffer solutions. |
| 350nA/channel shutdown current at 3V | Extends battery life in duty-cycled sensors - e.g., 1-second wake-up every 10 minutes yields average current <1μA per channel. |
| 2.8MHz gain-bandwidth with 61° phase margin | Supports stable closed-loop gain ≥10 with 1000pF capacitive load - simplifies anti-aliasing filter design in SAR ADC drivers. |
| 2.5pA input bias current | Minimizes voltage error across high-impedance sources (e.g., 100MΩ thermistor networks), preserving measurement accuracy. |
Applications
| Portable ECG Front-End | Low-Power Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry-electrode ECG sensors in wrist-worn monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier first stage (gain = 100) with rail-to-rail output driving 12-bit SAR ADC. Use Value: 250μV offset and 2.5pA bias ensure <0.5% gain error and <1μV baseline drift over 8-hour wear, meeting AHA clinical thresholds. |
Use Scenario: Conditioning output from MEMS pressure sensors in battery-operated HVAC duct monitors. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier converting 100nA sensor current to 0–3V output for MCU ADC. Use Value: 600μA/channel supply current enables continuous 1Hz sampling for 5+ years on CR2032 coin cell; rail-to-rail output maximizes ADC resolution. |
| Industrial 4–20mA Loop Receiver | Medical Infusion Pump Motor Control |
|
Use Scenario: Converting 4–20mA loop current to 0.5–2.5V for PLC analog input modules in factory automation. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with 250Ω shunt, followed by rail-to-rail buffer. Use Value: 250μV offset contributes <0.0125% FSR error; ±35mA drive capability sustains 2.5V output into 10kΩ ADC input + 100pF trace capacitance. |
Use Scenario: Closed-loop current sensing for stepper motor phase current regulation in portable infusion pumps. IC Role / Device Role / Timing Role: High-speed difference amplifier monitoring shunt voltage, feeding PWM controller with <1μs latency. Use Value: 2.8MHz GBW and 1.5V/μs slew rate support 20kHz PWM frequency with <0.5° phase lag; shutdown mode cuts idle current during pump pause. |
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 6.4MHz GBW but 550μA/channel supply current; no shutdown function; ±90mA output drive. | Preferred for high-speed active filters or fast-settling ADC drivers where shutdown is unnecessary. | Select TLV2462CDR when speed >2.8MHz is required and system lacks shutdown control logic. |
| OPA2316IDR | Lower 1MHz GBW and 100μA/channel supply current; rail-to-rail I/O; no shutdown; 50mA output drive. | Better suited for ultra-low-power always-on sensor conditioners where bandwidth <100kHz suffices. | Choose OPA2316IDR for multi-year battery life in environmental sensors where 2.8MHz is excessive. |
Compared with TLV2472CDR, TLV2462CDR trades shutdown capability and lower power for higher bandwidth and stronger drive, while OPA2316IDR sacrifices bandwidth and drive strength to achieve 1/6 the supply current - making each optimal for distinct power-speed-application triads.
Availability
TLV2472CDR is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20mA receivers, and battery-powered sensor nodes requiring stable component supply across extended production lifecycles.
Supply support for TLV2472CDR 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 chain solutions.
The TLV247x family was designed specifically for single-supply, rail-to-rail signal conditioning in portable and industrial instrumentation - balancing micropower operation with robust output drive and wide supply range.
FAQ
What is the maximum capacitive load the TLV2472CDR can drive without oscillation?
The TLV2472CDR maintains ≥61° phase margin with up to 1000pF capacitive load when configured as unity-gain buffer with RL = 10kΩ. For loads >10pF, TI recommends adding a 20Ω series null resistor (RNULL) between output and load to preserve stability - verified in Figure 42 of the SLOS232E datasheet.
Does the TLV2472CDR support true single-supply operation from 2.7V?
Yes, the TLV2472CDR supports true single-supply operation from 2.7V to 6V. Its rail-to-rail input range (0V to VDD) and rail-to-rail output swing (within 180mV of rails at 10mA) enable full dynamic range utilization without negative supply - confirmed in the "DESCRIPTION" section and electrical characteristics tables of the TLV2472CDR datasheet.
How does the shutdown function affect output state in TLV2472CDR?
When SHDN is pulled low, both amplifier outputs enter high-impedance state (not clamped or shorted), and supply current drops to 350nA/channel at 3V. The outputs remain electrically disconnected - allowing multiple TLV2472CDR devices to share a common bus or ADC input without contention, as specified in the "DESCRIPTION (CONTINUED)" section.
What is the typical input offset voltage drift over temperature for TLV2472CDR?
The TLV2472CDR exhibits 0.4μV/°C typical input offset voltage drift (αVIO), measured across the full operating range. At 25°C, VIO is 250μV (typ); over –40°C to +125°C, max VIO is 2400μV for C-suffix devices - ensuring predictable calibration behavior in automotive and industrial environments.
Can TLV2472CDR drive a 50Ω transmission line directly?
Yes, the TLV2472CDR can drive a 50Ω load directly when operating at 5V supply: it delivers ±35mA at 500mV from rail, enabling 2.5V output into 50Ω (50mA required for 2.5V). For 3V operation, use series termination (e.g., 40Ω) to limit current while maintaining signal integrity - validated in the "High Output Drive Capability" specification.
TLV2472CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2472CDR FAQ
1.How can I place an order for TLV2472CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2472CDR 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 TLV2472CDR reliable?
The price and inventory of TLV2472CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2472CDR is usually 5 days.
3.What payment methods are accepted for TLV2472CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2472CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2472CDR?
TLV2472CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2472CDR 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 TLV2472CDR?
For technical support, including TLV2472CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2472CDR requirements.
6.How does Aetrix verify that TLV2472CDR is sourced from the original manufacturer or authorized distributors?
All TLV2472CDR 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 TLV2472CDR meets industry standards.
7.What is the process for return or replacement of TLV2472CDR?
All TLV2472CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2472CDR, 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 TLV2472CDR part is unused and in its original packaging.
Return procedure for TLV2472CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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