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Texas Instruments TLV333IDCKR
- Part No.:
- TLV333IDCKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV333IDCKR.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1CIRC SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,095
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Product details
Overview
TLV333IDCKR from Texas Instruments is a single-channel, zero-drift CMOS operational amplifier optimized for precision, low-voltage, low-power applications. It delivers 2 µV max input offset voltage, 0.02 µV/°C drift, 17 µA quiescent current, and rail-to-rail input/output swing across 1.8 V to 5.5 V supply - enabling high-accuracy signal conditioning in battery-powered medical sensors and handheld test equipment.
For engineers reviewing the TLV333IDCKR datasheet, TLV333IDCKR pinout, TLV333IDCKR application, or TLV333IDCKR equivalent, key selection criteria include ultra-low offset drift over temperature, sub-2 µV initial VOS, 1.1 µVPP 0.1–10 Hz noise, EMI-hardened input filtering, and SC70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TLV333IDCKR employs a proprietary auto-calibration architecture that corrects input offset every 8 µs using a time-continuous 125-kHz chopper-stabilized core, eliminating 1/f flicker noise while maintaining unity-gain stability. Its input stage features internal 10-kΩ EMI filter resistors and clamping diodes, with common-mode range extending 100 mV beyond both rails.
Output stage design supports rail-to-rail swing within 30 mV of each supply under load, and enables ground-referenced output extension (down to –2 mV) via external pull-down resistor. The device operates continuously from –40°C to +125°C without phase reversal or gain collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 2 µV typical (15 µV max); enables <1 LSB error in 16-bit systems at 2.5 V full-scale |
| Offset Drift | 0.02 µV/°C; ensures <0.3 µV total drift over –40°C to +125°C ambient |
| Quiescent Current | 17 µA per amplifier; allows >1-year battery life in coin-cell-powered instrumentation |
| Supply Voltage Range | 1.8 V to 5.5 V; supports direct connection to Li-ion, alkaline, or regulated 3.3 V rails |
| 0.1–10 Hz Noise | 1.1 µVPP; critical for DC-coupled thermistor, strain gauge, and medical bio-signal amplification |
| Gain-Bandwidth | 350 kHz; sufficient for anti-aliasing filters and sensor interface loops up to ~35 kHz closed-loop bandwidth |
| CMRR | 102 dB min; rejects common-mode interference in noisy industrial or automotive environments |
Pinout & Package
TLV333IDCKR is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for high-density portable designs. Thermal resistance RθJA is 298.4°C/W, requiring minimal copper area for thermal management in low-power operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply | Highest potential rail; must be ≥1.8 V and ≤5.5 V; bypass with 0.1 µF ceramic capacitor |
| OUT | Amplifier output | Rail-to-rail capable; swings within 30 mV of V+ or V– under 10 kΩ load; supports external pull-down to extend below V– |
| +IN | Noninverting input | High-impedance CMOS node; common-mode range extends 0.1 V beyond V+ and V– rails |
| –IN | Inverting input | High-impedance CMOS node; matched to +IN for optimal CMRR and offset cancellation |
| V– | Negative power supply | Lowest potential rail; may be ground in single-supply configurations; requires local 0.1 µF bypass |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Auto-calibrates every 8 µs to maintain <2 µV VOS and eliminate 1/f noise - no external trimming required |
| Internal EMI filtering | Integrated 10-kΩ input resistors + low-pass network suppresses 8 MHz–band RF interference without added external components |
| Rail-to-rail I/O | Input accepts signals 100 mV beyond supply rails; output drives within 30 mV of either rail - simplifies level-shifting in 1.8 V systems |
| Ultra-low quiescent current | 17 µA at 25°C and full temperature range - enables always-on sensing in energy-harvesting and wearable devices |
| Extended temperature rating | Specified from –40°C to +125°C - suitable for under-hood automotive sensors and industrial process controllers |
Applications
| Temperature Measurements | Electronic Scales |
|---|---|
Use Scenario: Precision thermistor or RTD front-end in portable environmental monitors and HVAC controls. IC Role / Device Role / Timing Role: Low-noise, low-drift gain stage converting small resistance changes into stable voltage outputs. Use Value: 1.1 µVPP 0.1–10 Hz noise and 0.02 µV/°C drift ensure <0.05°C measurement uncertainty over full industrial temperature range. | Use Scenario: Strain-gauge bridge amplifier in battery-powered kitchen or industrial weighing platforms. IC Role / Device Role / Timing Role: Instrumentation-grade differential amplifier with high CMRR and rail-to-rail output driving ADC reference buffers. Use Value: 2 µV VOS and 102 dB CMRR minimize zero-point drift and linearity errors caused by supply ripple or thermal gradients. |
| Medical Instrumentation | Current Sense |
Use Scenario: Front-end amplifier for ECG, pulse oximetry, or glucose sensor analog signal chains. IC Role / Device Role / Timing Role: Ultra-low-noise, low-input-bias-current buffer isolating high-impedance electrodes from downstream circuitry. Use Value: ±70 pA input bias current and 1.1 µVPP noise preserve microvolt-level biopotential signals without distortion or baseline shift. | Use Scenario: High-side or low-side current shunt monitor in smart battery packs and motor drivers. IC Role / Device Role / Timing Role: Precision difference amplifier rejecting common-mode bus voltage while amplifying mV-level shunt drops. Use Value: 17 µA IQ enables continuous current monitoring in always-on power management ICs without compromising battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Same zero-drift architecture but 17 µA IQ, 0.1–10 Hz noise = 1.2 µVPP, VOS = 10 µV max | Higher initial offset limits resolution in 18-bit+ data acquisition; identical SC70-5 footprint | Select when cost sensitivity outweighs need for sub-2 µV VOS; verify system-level offset calibration capability |
| MCP6V81T-E/OT | Chopper-stabilized, 1.6 µV VOS max, 0.01 µV/°C drift, but 65 µA IQ and 2.2 µVPP 0.1–10 Hz noise | Higher power consumption precludes use in multi-year battery applications; SOIC-5 only | Prefer for ultra-low-drift requirements where board space and power budget allow larger package and higher IQ |
Compared with OPA333AIDBVR and MCP6V81T-E/OT, TLV333IDCKR offers the lowest combination of initial offset (2 µV typ), drift (0.02 µV/°C), and quiescent current (17 µA), making it optimal for long-life, high-resolution portable instrumentation where every microamp and microvolt matters.
Availability
TLV333IDCKR is available at Aetrix Electronics and suitable for battery-powered instruments, temperature measurements, transducer applications, and medical instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLV333IDCKR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TLV333IDCKR belongs to TI's Zero-Drift Series of precision op amps, designed specifically for cost-sensitive, low-power, high-accuracy signal conditioning in portable and battery-operated systems.
FAQ
What is the maximum supply voltage for TLV333IDCKR?
The absolute maximum supply voltage for TLV333IDCKR is 7 V, but the recommended operating range is strictly 1.8 V to 5.5 V. Exceeding 5.5 V risks permanent damage and violates the device's specified electrical characteristics; operation above 7 V causes irreversible junction breakdown per the Absolute Maximum Ratings table in SBOS751.
Does TLV333IDCKR support rail-to-rail input and output simultaneously?
Yes, TLV333IDCKR supports true rail-to-rail input and output operation: its input common-mode range extends 0.1 V beyond both V+ and V– rails, and its output swings within 30 mV of each rail under 10 kΩ load. This enables full dynamic range utilization in 1.8 V single-supply systems without external level-shifting circuitry.
How does the auto-calibration in TLV333IDCKR affect noise performance?
TLV333IDCKR's proprietary auto-calibration eliminates 1/f (flicker) noise entirely, resulting in flat voltage noise density (55 nV/√Hz at 1 kHz) and ultra-low 0.1–10 Hz integrated noise (1.1 µVPP). Unlike conventional choppers, this technique introduces no switching artifacts or aliasing, preserving signal integrity in DC-coupled precision applications.
Can TLV333IDCKR drive capacitive loads without instability?
TLV333IDCKR is unity-gain stable and characterized to drive ≥100 pF capacitive loads without oscillation, as confirmed in Figure 14 of SBOS751. For loads >100 pF, a series isolation resistor (typically 10–100 Ω) between the output and capacitance is recommended to maintain phase margin and prevent peaking in step response.
Is TLV333IDCKR pin-compatible with other packages in the TLVx333 family?
No - TLV333IDCKR (SC70-5) has a different pinout than TLV333DBVR (SOT23-5) and TLV333DR (SOIC-8). While all share identical electrical functionality, the SC70-5 pin mapping (V+, OUT, +IN, –IN, V–) differs from SOT23-5 (V+, –IN, +IN, V–, OUT) and SOIC-8 (V+, OUT, +IN, V–, –IN, NC, NC, NC). PCB layout must match the DCK package assignment.
TLV333IDCKR 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:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.16V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 70 pA
- Voltage - Input Offset:
- 2 µV
- Current - Supply:
- 17µA
- 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
TLV333IDCKR FAQ
1.How can I place an order for TLV333IDCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV333IDCKR 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 TLV333IDCKR reliable?
The price and inventory of TLV333IDCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV333IDCKR is usually 5 days.
3.What payment methods are accepted for TLV333IDCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV333IDCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV333IDCKR?
TLV333IDCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV333IDCKR 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 TLV333IDCKR?
For technical support, including TLV333IDCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV333IDCKR requirements.
6.How does Aetrix verify that TLV333IDCKR is sourced from the original manufacturer or authorized distributors?
All TLV333IDCKR 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 TLV333IDCKR meets industry standards.
7.What is the process for return or replacement of TLV333IDCKR?
All TLV333IDCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV333IDCKR, 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 TLV333IDCKR part is unused and in its original packaging.
Return procedure for TLV333IDCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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