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Texas Instruments TLV313IDCKR
- Part No.:
- TLV313IDCKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV313IDCKR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,253
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Product details
Overview
TLV313IDCKR from Texas Instruments is a single-channel, rail-to-rail input/output precision operational amplifier optimized for cost-sensitive, low-power systems. It delivers 1-MHz gain bandwidth, 65 µA typical quiescent current per channel, 26 nV/√Hz input voltage noise at 1 kHz, 0.75 mV typical input offset voltage, and operates from 1.8 V to 5.5 V supply - enabling high-accuracy signal conditioning in battery-powered medical sensors and utility metering front-ends.
For engineers reviewing the TLV313IDCKR datasheet, TLV313IDCKR pinout, TLV313IDCKR application, or TLV313IDCKR equivalent, this page provides verified technical context, package-specific pin functions, real-world use-value mapping, and validated alternative options for wearable, industrial sensing, and energy measurement designs.
Technical Context
The TLV313IDCKR uses a complementary N/P-channel input stage enabling true rail-to-rail common-mode input range (–0.2 V to VS + 0.2 V), with a defined transition region near VS – 1.3 V where CMRR and PSRR degrade. Its class AB output stage achieves rail-to-rail output swing - typically within 5 mV of either rail at 100-kΩ load - and supports unity-gain stability with capacitive loads up to 1 nF.
Designed for ultra-low-power operation, the device maintains 1-MHz GBW and 0.5 V/µs slew rate across 1.8–5.5 V supply, while delivering 85 dB CMRR (in non-transition region) and 90 dB PSRR at 25°C. Input bias current remains at ±1 pA over –40°C to +125°C, supporting high-impedance sensor interfacing without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with Li-ion, coin-cell, and 3.3 V/5 V logic systems without level-shifting. |
| Quiescent Current | 65 µA/ch - allows continuous operation for years on a single CR2032 battery in always-on sensor nodes. |
| Gain Bandwidth Product | 1 MHz - supports accurate amplification of DC–100 kHz signals (e.g., ECG, flow meter outputs) with minimal phase lag. |
| Input Offset Voltage | 0.75 mV (typ) - ensures ≤0.015% full-scale error in 5-V-span 12-bit ADC front-ends without trimming. |
| Input Voltage Noise | 26 nV/√Hz at 1 kHz - preserves SNR in low-level transducer signals (e.g., thermopile, strain gauge) below 100 µV. |
| Rail-to-Rail I/O | Input: –0.2 V to VS + 0.2 V; Output: within 5 mV of rails at 100 kΩ - maximizes dynamic range in single-supply data acquisition. |
| Operating Temperature | –40°C to +125°C - qualified for deployment in outdoor utility meters and automotive cabin sensors. |
Pinout & Package
TLV313IDCKR is packaged in a 5-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for space-constrained PCB layouts in wearables and portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN | Noninverting input - accepts signals up to VS + 0.2 V; high-impedance (1 pA bias) for direct connection to resistive sensors. |
| 2 | V– | Negative supply terminal - referenced to ground in single-supply configurations; must be stable under 100-mV ripple. |
| 3 | –IN | Inverting input - used in transimpedance or differential configurations; matched to +IN for CMRR optimization. |
| 4 | OUT | Amplifier output - drives loads down to 2 kΩ while maintaining rail-to-rail swing; includes internal RF/EMI filtering. |
| 5 | V+ | Positive supply terminal - accepts 1.8–5.5 V; decoupling capacitor (0.1 µF) required within 2 mm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Internal RF/EMI filter | Reduces rectified offset shift from GSM/ISM-band interference - critical for clinical-grade wearable biosensors. |
| No phase reversal | Prevents catastrophic output inversion during input overdrive - eliminates need for external clamping in sensor protection circuits. |
| 4-kV HBM ESD rating | Enables robust handling in automated assembly and field-replaceable modules without additional protection components. |
| Unity-gain stable | Operates reliably as buffer or gain-of-1 amplifier without external compensation - simplifies layout in compact PCBs. |
| Low input bias current | ±1 pA enables use with >10 MΩ source impedances (e.g., pH electrodes, piezoelectric sensors) without gain error. |
Applications
| Medical Biosensing | Fitness Wearables |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or EMG signals from dry electrodes in ambulatory monitors. IC Role / Device Role / Timing Role: Precision front-end amplifier with rail-to-rail I/O and ultra-low noise to preserve signal integrity before 12-bit ADC sampling. Use Value: 26 nV/√Hz noise and 0.75 mV offset enable ≥80 dB SNR in 0.5–100 Hz band without calibration - reducing firmware complexity. |
Use Scenario: Conditioning photodiode current from optical heart-rate sensors in smartwatches. IC Role / Device Role / Timing Role: Transimpedance amplifier with low input bias current and 1-MHz bandwidth for pulse detection. Use Value: ±1 pA input bias minimizes dark-current error; 65 µA quiescent current extends battery life beyond 7 days per charge. |
| Utility Metering | Building Automation |
Use Scenario: Isolating and scaling current-sense signals in heat/water meter flow measurement circuits. IC Role / Device Role / Timing Role: High-CMRR (85 dB) differential amplifier rejecting common-mode noise from switching power supplies. Use Value: 85 dB CMRR at 50/60 Hz suppresses mains-induced error to <0.02% reading - meeting ANSI C12.20 Class 0.5 accuracy. |
Use Scenario: Signal conditioning for CO₂, temperature, and humidity sensors in HVAC controllers. IC Role / Device Role / Timing Role: Low-drift, rail-to-rail amplifier driving SAR ADC inputs across –40°C to +125°C ambient range. Use Value: 2 µV/°C offset drift ensures <0.1°C equivalent error over full temperature range - eliminating thermal recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA313IDBVR | Higher 1.8-MHz GBW, 110-dB CMRR, but 120 µA IQ - consumes 1.8× more current than TLV313IDCKR. | Better for higher-speed sensor interfaces (e.g., ultrasonic flow meters); less suitable for multi-year battery life targets. | Select OPA313IDBVR when bandwidth >1.2 MHz is required and power budget allows ≥100 µA/ch. |
| MCP6001UT-E/OT | Lower 100-µA IQ, 1-MHz GBW, but only 60 dB CMRR and no guaranteed rail-to-rail input - limited common-mode range. | Acceptable for low-cost consumer wearables with relaxed accuracy; unsuitable for utility metering or medical diagnostics. | Choose MCP6001UT-E/OT only for cost-driven applications where CMRR >75 dB and rail-to-rail input are not required. |
Compared with OPA313IDBVR and MCP6001UT-E/OT, TLV313IDCKR uniquely balances sub-100-µA power, 1-MHz bandwidth, rail-to-rail I/O, and 85-dB CMRR - making it the optimal choice for battery-powered, high-accuracy analog front-ends in regulated markets.
Availability
TLV313IDCKR is available at Aetrix Electronics and suitable for medical biosensing, utility metering, and building automation applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLV313IDCKR 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 TLV313IDCKR belongs to TI's TLVx313 family - designed specifically for cost-sensitive, battery-operated systems demanding rail-to-rail performance, ultra-low quiescent current, and robust EMI immunity in harsh environments.
FAQ
What is the maximum capacitive load the TLV313IDCKR can drive while remaining stable?
The TLV313IDCKR remains unity-gain stable with pure capacitive loads up to 1 nF. For larger loads (e.g., >10 nF), adding a 10–20 Ω series resistor between the output and capacitor restores stability by isolating the reactive load from the amplifier's feedback loop. This technique is documented in TI's SBOS753B datasheet Figure 19 and validated across –40°C to +125°C.
Does TLV313IDCKR support true rail-to-rail input at 1.8 V supply?
Yes - TLV313IDCKR guarantees rail-to-rail input operation from –0.2 V to VS + 0.2 V across its full 1.8–5.5 V supply range. At 1.8 V, this means the input common-mode range extends from –0.2 V to +2.0 V, enabling direct interfacing with sensors operating near ground or supply without level-shifting circuitry.
What is the typical input offset voltage drift over temperature for TLV313IDCKR?
The TLV313IDCKR has a typical input offset voltage drift of 2 µV/°C over the full –40°C to +125°C operating range. This low drift ensures minimal calibration drift in precision measurement systems - for example, contributing only ~340 µV total offset change across the entire temperature span, well within 12-bit ADC resolution at 5-V full scale.
Can TLV313IDCKR be used in single-supply configurations with ground-referenced inputs?
Yes - TLV313IDCKR is explicitly designed for single-supply operation. With V– tied to ground and V+ at 1.8–5.5 V, its rail-to-rail input accepts signals from –0.2 V to V+ + 0.2 V, and its output swings within 5 mV of ground and V+. This makes it ideal for ground-referenced sensor interfaces like thermistors or bridge amplifiers without dual supplies.
How does the internal EMI filter in TLV313IDCKR improve system reliability?
The integrated RF/EMI filter in TLV313IDCKR attenuates high-frequency interference (e.g., GSM bursts, WiFi harmonics) before it reaches the input stage, preventing rectification-induced DC offset shifts. This eliminates erratic baseline drift in sensitive analog paths - such as ECG front-ends - without requiring external ferrite beads or RC filters, reducing BOM count and board area.
TLV313IDCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 750 µV
- Current - Supply:
- 65µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TLV313IDCKR FAQ
1.How can I place an order for TLV313IDCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV313IDCKR 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 TLV313IDCKR reliable?
The price and inventory of TLV313IDCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV313IDCKR is usually 5 days.
3.What payment methods are accepted for TLV313IDCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV313IDCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV313IDCKR?
TLV313IDCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV313IDCKR 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 TLV313IDCKR?
For technical support, including TLV313IDCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV313IDCKR requirements.
6.How does Aetrix verify that TLV313IDCKR is sourced from the original manufacturer or authorized distributors?
All TLV313IDCKR 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 TLV313IDCKR meets industry standards.
7.What is the process for return or replacement of TLV313IDCKR?
All TLV313IDCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV313IDCKR, 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 TLV313IDCKR part is unused and in its original packaging.
Return procedure for TLV313IDCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV313IDCKR Tags
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