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Texas Instruments TLV333IDR
- Part No.:
- TLV333IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV333IDR.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:978
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Product details
Overview
TLV333IDR from Texas Instruments is a single-channel, zero-drift CMOS operational amplifier optimized for precision low-voltage operation (1.8 V to 5.5 V). It delivers 2 µV typical input offset voltage, 0.02 µV/°C drift, 17 µA quiescent current, and rail-to-rail input/output swing - enabling high-accuracy signal conditioning in battery-powered instrumentation and transducer interfaces.
For engineers reviewing the TLV333IDR datasheet, TLV333IDR pinout, TLV333IDR application, or TLV333IDR equivalent, key selection criteria include its ultra-low 1.1 µVPP (0.1–10 Hz) noise, internal EMI filtering, –40°C to +125°C operating range, and SC70-5/SOT23-5/SOIC-8 package flexibility for space-constrained designs.
Technical Context
The TLV333IDR employs a proprietary auto-calibration architecture with continuous 125-kHz correction cycles every 8 µs, eliminating 1/f flicker noise while maintaining unity-gain stability and no output phase reversal. Its input stage supports common-mode voltage from (V–) – 0.1 V to (V+) + 0.1 V, and its output drives within 30 mV of either rail under load.
This amplifier integrates on-die EMI filtering (–3 dB at ~8 MHz) for robust operation in noisy environments and features high PSRR (102–115 dB) and CMRR (102–115 dB), making it suitable for direct battery-sensing without regulation and precision DC-coupled measurement paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 2 µV typ - enables sub-millivolt DC accuracy without calibration |
| Offset Drift | 0.02 µV/°C - ensures <1 µV total drift over –40°C to +125°C |
| Quiescent Current | 17 µA per amplifier - supports multi-year battery life in portable sensors |
| Supply Range | 1.8 V to 5.5 V - operates directly from single Li-ion or two alkaline cells |
| 0.1–10 Hz Noise | 1.1 µVPP - critical for low-frequency thermistor, strain gauge, and medical biosensor front-ends |
| Gain-Bandwidth | 350 kHz - sufficient for DC–100 Hz sensor signal amplification with margin |
| CMRR / PSRR | 102–115 dB - rejects supply ripple and common-mode interference in unregulated systems |
Pinout & Package
TLV333IDR is available in SC70-5 (2.00 mm × 1.25 mm), SOT23-5 (2.90 mm × 1.60 mm), and SOIC-8 (4.90 mm × 3.91 mm) packages. The SC70-5 variant (DCK) is most common for space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply | Highest potential rail; accepts 1.8–5.5 V; bypass with 0.1 µF ceramic capacitor |
| OUT | Amplifier output | Rail-to-rail swing; drives loads down to 10 kΩ; stable with ≤100 pF capacitive load |
| +IN | Noninverting input | High-impedance CMOS node; common-mode range extends 0.1 V beyond supplies |
| –IN | Inverting input | High-impedance CMOS node; matched to +IN for optimal CMRR and offset cancellation |
| V– | Negative supply | Lowest potential rail; supports single-supply (0 V ground) or dual-supply (±0.9 V) operation |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Auto-calibrates every 8 µs to eliminate 1/f noise and maintain <2 µV VOS over temperature/time |
| Rail-to-rail I/O | Input accepts signals 100 mV beyond rails; output swings within 30 mV of V– and V+ under load |
| Internal EMI filter | Integrated 8-MHz low-pass filter reduces rectified noise from RF interference on input pins |
| Ultra-low power | 17 µA IQ enables always-on sensing in energy-harvesting and wearable devices |
| Wide temperature range | Specified from –40°C to +125°C for automotive cabin, industrial sensor, and medical equipment use |
Applications
| Electronic Scales | Medical Instrumentation |
|---|---|
Use Scenario: Amplifying microvolt-level outputs from load-cell bridges in portable weighing devices. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low offset and drift to preserve weight resolution below 1 g. Use Value: 2 µV VOS and 0.02 µV/°C drift prevent thermal zero-shift errors during ambient temperature changes. | Use Scenario: Signal conditioning for ECG, pulse oximetry, or glucose sensor analog front-ends. IC Role / Device Role / Timing Role: Low-noise, low-power buffer and amplifier for biopotential signals with DC coupling requirements. Use Value: 1.1 µVPP (0.1–10 Hz) noise and rail-to-rail output enable full-scale utilization of 16-bit ADC inputs. |
| Battery-Powered Instruments | Temperature Measurements |
Use Scenario: Portable multimeters, handheld DMMs, and field calibrators operating from coin-cell or AA batteries. IC Role / Device Role / Timing Role: Precision reference buffer, current-sense amplifier, and sensor interface in low-quiescent-current systems. Use Value: 17 µA supply current extends battery life to >5 years in sleep-mode monitoring applications. | Use Scenario: Linearization and amplification of NTC/PT100 thermistor outputs in HVAC controls and industrial process sensors. IC Role / Device Role / Timing Role: High-input-impedance, low-drift amplifier driving ratiometric ADCs with stable excitation current sources. Use Value: 0.02 µV/°C drift minimizes temperature measurement error across wide ambient ranges (–40°C to +125°C). |
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; 17 µA IQ; but 10 µV max VOS vs TLV333IDR's 15 µV max | Identical rail-to-rail I/O and 1.8–5.5 V supply; slightly higher 0.1–10 Hz noise (1.2 µVPP) | Preferred where TI's enhanced production screening for lower VOS distribution is required |
| MCP6V81T-E/OT | Microchip zero-drift op amp; 1.6 µV max VOS; 100 nA input bias vs TLV333IDR's ±70 pA | Same 1.8–5.5 V range and –40°C to +125°C rating; no integrated EMI filter | Selected when lowest possible offset is prioritized over EMI immunity in shielded environments |
Compared with OPA333AIDBVR and MCP6V81T-E/OT, the TLV333IDR offers superior EMI rejection due to its on-die 8-MHz filter, tighter VOS distribution (2 µV typ), and lower input bias current - making it optimal for unshielded, battery-operated sensor nodes exposed to RF fields.
Availability
TLV333IDR 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 long product lifecycles.
Supply support for TLV333IDR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog signal chain solutions.
The TLV333IDR belongs to TI's Zero-Drift Series of CMOS op amps, designed specifically for cost-sensitive, ultra-low-power, high-accuracy DC and low-frequency measurement applications in portable and industrial systems.
FAQ
What is the maximum supply voltage for TLV333IDR?
The absolute maximum supply voltage for TLV333IDR 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 5.5 V voids performance guarantees including offset voltage, drift, and noise specifications.
Does TLV333IDR support rail-to-rail input and output simultaneously?
Yes, TLV333IDR supports true rail-to-rail input and output operation. Its input common-mode range extends from (V–) – 0.1 V to (V+) + 0.1 V, and its output swings within 30 mV of both rails under 10-kΩ load. This allows full utilization of supply headroom in single-supply configurations, such as 0–3.3 V or 0–5 V systems using TLV333IDR.
How does the auto-calibration circuit in TLV333IDR affect settling time?
The TLV333IDR's auto-calibration runs continuously at 125 kHz, correcting offset every 8 µs without interrupting signal path continuity. As a result, its small-signal settling time remains fast (≈10 µs to 0.1%), and large-signal step response shows no calibration-related artifacts. Power-up stabilization requires only 100 µs to reach full VOS accuracy.
Can TLV333IDR drive capacitive loads without oscillation?
TLV333IDR is stable with capacitive loads up to 100 pF when configured as a unity-gain buffer. For loads exceeding 100 pF, external isolation (e.g., series resistor ≥100 Ω) is required to maintain phase margin. The datasheet's Typical Characteristics section confirms stability up to 100 pF; no external compensation is needed within this limit for TLV333IDR.
Is TLV333IDR qualified for automotive applications?
TLV333IDR is not AEC-Q200 qualified, though it is specified for operation from –40°C to +125°C - matching the temperature range of many automotive cabin and under-hood applications. For production automotive use, TI recommends AEC-Q200–qualified alternatives like TLV333QDBVRQ1; TLV333IDR is intended for industrial, medical, and consumer-grade systems.
TLV333IDR 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:
- 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:
- 8-SOIC
TLV333IDR FAQ
1.How can I place an order for TLV333IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV333IDR 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 TLV333IDR reliable?
The price and inventory of TLV333IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV333IDR is usually 5 days.
3.What payment methods are accepted for TLV333IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV333IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV333IDR?
TLV333IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV333IDR 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 TLV333IDR?
For technical support, including TLV333IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV333IDR requirements.
6.How does Aetrix verify that TLV333IDR is sourced from the original manufacturer or authorized distributors?
All TLV333IDR 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 TLV333IDR meets industry standards.
7.What is the process for return or replacement of TLV333IDR?
All TLV333IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV333IDR, 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 TLV333IDR part is unused and in its original packaging.
Return procedure for TLV333IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV333IDR Tags
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