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Texas Instruments TLV2470CD
- Part No.:
- TLV2470CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2470CD.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,341
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Product details
Overview
TLV2470CD from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier with shutdown functionality, designed for ultra-low-power signal conditioning in battery-powered systems. It delivers 2.8MHz gain-bandwidth, ±10mA output drive at 180mV from rails, 600μA/channel supply current, and 250μV typical input offset voltage across 2.7V–6V operation - ideal for portable medical sensors and precision data acquisition front-ends.
For engineers reviewing the TLV2470CD datasheet, TLV2470CD pinout, TLV2470CD application, or TLV2470CD equivalent, this page provides verified technical context, package-specific pin definitions, real-world use cases in sensor interfaces and portable instrumentation, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2470CD implements a CMOS input stage enabling rail-to-rail common-mode input range (0V to VDD) and rail-to-rail output swing (within 180mV of both rails under 10mA load). Its shutdown terminal places the output in high-impedance state while reducing supply current to 350nA/channel at 3V, making it suitable for intermittent-sampling architectures.
It features 2.8MHz unity-gain bandwidth with 1.5V/μs slew rate, 90dB CMRR at 25°C, and 74dB PSRR across 2.7V–6V supply range. The device is fully specified over 0°C to +70°C (C-suffix), with guaranteed performance at 3V and 5V operating points.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 6V - supports single-cell Li-ion (3.0–3.7V) and dual-AA (3.0V) systems without level-shifting. |
| Gain-Bandwidth Product | 2.8MHz - enables stable closed-loop gain ≥10 up to ~280kHz for anti-aliasing or sensor amplification. |
| 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 | ±10mA at 180mV from rail - drives 10kΩ loads with rail-to-rail swing; ±35mA at 500mV off rail supports active filters. |
| Shutdown Supply Current | 350nA/ch at 3V - extends battery life by >100× vs active mode in duty-cycled sensor nodes. |
| Input Bias Current | 2.5pA (typ) - minimizes voltage error across high-impedance sources (e.g., pH electrodes, piezoelectric sensors). |
| Common-Mode Input Range | 0V to VDD - accepts signals directly referenced to ground or VDD in single-supply configurations. |
Pinout & Package
SOT-23-6 package (DBV) with 6-pin surface-mount footprint; 2.9mm × 1.6mm body, 0.95mm height, 0.95mm pitch. Pin 1 marked by beveled edge or molded dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Delivers rail-to-rail output swing; high-impedance during shutdown. |
| 2 (IN−) | Inverting Input | Differential input node; 2.5pA bias current enables high-Z source interfacing. |
| 3 (IN+) | Non-Inverting Input | Accepts signals from 0V to VDD; rail-to-rail common-mode range eliminates level-shifting needs. |
| 4 (GND) | Analog Ground Reference | Primary return path for input/output currents; must be low-impedance for noise control. |
| 5 (SHDN) | Active-Low Shutdown Control | Logic-low (≤0.8V) disables amplifier; logic-high (≥2V) enables operation. |
| 6 (VDD) | Positive Supply Rail | Accepts 2.7V–6V; internal regulation ensures stable biasing across supply range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 3V systems - e.g., 0–3V output from 0–3V sensor signal without clipping. |
| 600μA/channel supply current | Allows continuous operation in always-on wearable health monitors with multi-day battery life on CR2032. |
| 350nA shutdown current | Reduces quiescent power to <1μW per channel - critical for energy-harvesting IoT endpoints. |
| 2.8MHz GBW with 1.5V/μs SR | Supports fast-settling (≤4μs to 0.01%) in 12-bit SAR ADC drivers with 10kΩ load and 56pF capacitance. |
| 2.5pA input bias current | Permits direct connection to >100MΩ sensor elements (e.g., thermistors, photodiodes) without guard traces. |
| Specified at 3V and 5V | Guarantees performance across common portable supply rails - no derating required for low-voltage design. |
Applications
| Portable ECG Front-End | Low-Power Gas Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-operated ECG patches. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail input/output instrumentation amplifier stage with shutdown between measurement cycles. Use Value: 2.5pA input bias prevents electrode polarization drift; 350nA shutdown current extends 7-day battery life. |
Use Scenario: Conditioning output of electrochemical CO sensors requiring high-impedance transimpedance conversion. IC Role / Device Role / Timing Role: Transimpedance amplifier with rail-to-rail output driving 10-bit ADC reference range. Use Value: 250μV offset ensures <0.1% full-scale error; 600μA supply current enables continuous 1Hz sampling. |
| Industrial Temperature Transmitter | Smart Smoke Detector Analog Front-End |
|
Use Scenario: Linearizing and amplifying RTD bridge outputs in 4–20mA loop-powered transmitters. IC Role / Device Role / Timing Role: Precision voltage follower and excitation buffer in 3.3V isolated sensing subsystem. Use Value: 2.7V–6V supply range accommodates loop-powered 3.6V rail; 90dB CMRR rejects 50/60Hz interference. |
Use Scenario: Amplifying weak photoelectric chamber signals in UL-certified battery smoke alarms. IC Role / Device Role / Timing Role: Low-noise preamp with shutdown during standby to meet 10-year battery life requirement. Use Value: 28nV/√Hz input noise preserves signal integrity; 350nA shutdown current limits annual drain to <3μAh. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2460CD | Higher 6.4MHz GBW but no shutdown; 550μA supply current; ±90mA output drive. | Preferred where speed and drive strength outweigh power savings - e.g., active filter stages. | Select TLV2460CD when shutdown is unnecessary and higher slew rate (1.6V/μs) is required for faster settling. |
| OPA348AIDBVR | Lower 1MHz GBW; 45μA supply current; no shutdown; 200μV max VIO (vs 2400μV max for TLV2470CD). | Better for ultra-low-power always-on monitoring where 2.8MHz bandwidth is excessive. | Choose OPA348AIDBVR for sub-50μA systems where 1MHz bandwidth suffices and shutdown is not needed. |
Compared with TLV2470CD, TLV2460CD trades shutdown capability for higher bandwidth and output drive, while OPA348AIDBVR reduces supply current by >90% at the cost of bandwidth and shutdown - enabling selection based on priority: power gating (TLV2470CD), speed (TLV2460CD), or ultra-low quiescent current (OPA348AIDBVR).
Availability
TLV2470CD is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, and battery-powered smoke detectors requiring stable component supply across extended production lifecycles.
Supply support for TLV2470CD 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 chains.
The TLV2470CD belongs to TI's TLV247x family of rail-to-rail I/O op-amps optimized for micropower, high-output-drive, and shutdown-capable applications in portable and industrial sensing systems.
FAQ
What is the maximum capacitive load the TLV2470CD can drive without instability?
The TLV2470CD requires external isolation for capacitive loads >10pF. As confirmed in TI's SLOS232E datasheet Figure 42, a series resistor (RNULL ≥20Ω) must be placed between the output and load to maintain phase margin above 61° with 1000pF capacitance. This prevents ringing or oscillation in ADC driver or filter applications using the TLV2470CD.
Does the TLV2470CD support true rail-to-rail output swing at full rated load?
Yes - the TLV2470CD delivers rail-to-rail output swing within 180mV of each supply rail while sourcing or sinking ±10mA, as specified in the "High Output Drive Capability" section of the TLV2470CD datasheet. At ±35mA, output swing degrades to within 500mV of rails - a verified design boundary for the TLV2470CD under heavy load.
What is the recommended PCB layout practice for the SHDN pin of the TLV2470CD?
TI specifies the SHDN pin of the TLV2470CD as an active-low digital control input with VIH ≥2V and VIL ≤0.8V. To prevent false triggering, the trace should be short, routed away from noisy digital lines, and decoupled with a 0.1μF capacitor to GND near the pin - per layout guidance in the TLV2470CD evaluation board documentation and SLOS232E Section 10.
Can the TLV2470CD operate from a 2.5V supply?
No - the absolute minimum supply voltage for the TLV2470CD is 2.7V, as stated in the "Recommended Operating Conditions" table of the SLOS232E datasheet. Operation below 2.7V risks undefined behavior, including failure to achieve rail-to-rail output swing or proper shutdown functionality in the TLV2470CD.
How does the input offset voltage drift with temperature for the TLV2470CD?
The TLV2470CD has a temperature coefficient of input offset voltage (αVIO) of 0.4μV/°C, as measured across the full operating range. Over a 0°C to +70°C ambient span, this results in ≤28μV additional offset drift - a deterministic, linear contribution that must be included in total error budgeting for precision designs using the TLV2470CD.
TLV2470CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2470CD FAQ
1.How can I place an order for TLV2470CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2470CD 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 TLV2470CD reliable?
The price and inventory of TLV2470CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2470CD is usually 5 days.
3.What payment methods are accepted for TLV2470CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2470CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2470CD?
TLV2470CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2470CD 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 TLV2470CD?
For technical support, including TLV2470CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2470CD requirements.
6.How does Aetrix verify that TLV2470CD is sourced from the original manufacturer or authorized distributors?
All TLV2470CD 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 TLV2470CD meets industry standards.
7.What is the process for return or replacement of TLV2470CD?
All TLV2470CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2470CD, 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 TLV2470CD part is unused and in its original packaging.
Return procedure for TLV2470CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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