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Texas Instruments TLV9041IDCKR
- Part No.:
- TLV9041IDCKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV9041IDCKR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:93,286
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Product details
Overview
TLV9041IDCKR from Texas Instruments is a single-channel, rail-to-rail input/output (RRIO), ultra-low-voltage operational amplifier optimized for power-constrained systems. It operates from 1.2 V to 5.5 V supply, draws only 10 µA quiescent current per channel, features ±0.6 mV input offset voltage and 350 kHz gain-bandwidth product, and is specified over –40°C to +125°C - enabling use in coin-cell-powered wearables and IoT sensor nodes.
For engineers reviewing the TLV9041IDCKR datasheet, TLV9041IDCKR pinout, TLV9041IDCKR application, or TLV9041IDCKR equivalent, this page delivers verified electrical specs, package-validated pin functions, real-world use cases in low-power analog signal conditioning, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The TLV9041IDCKR implements a low-power CMOS input stage with 1 pA typical input bias current and integrated RFI/EMI filtering on input pins. Its unity-gain stable architecture supports direct connection to high-capacitance loads up to 100 pF without external compensation.
It delivers rail-to-rail output swing within 1–8 mV of either rail under 10–100 kΩ loads and maintains >65° phase margin across 10 pF capacitive loading - critical for stable operation in battery-powered sensor front-ends and precision current-sense amplifiers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 5.5 V - enables direct operation from 1.5 V coin cells and Li-ion single-cell systems without LDOs. |
| Quiescent Current | 10 µA/ch - reduces battery drain in always-on wearable monitors and motion detectors. |
| Input Offset Voltage | ±0.6 mV (typ) - supports accurate DC-coupled amplification in low-side current sensing with <1% error at 100 mV full-scale. |
| Gain-Bandwidth Product | 350 kHz - sufficient for anti-aliasing and sensor signal conditioning up to ~35 kHz with unity-gain stability. |
| Input Bias Current | 1 pA (typ), 12 pA (max) - minimizes voltage error in high-impedance pH, thermopile, or photodiode interfaces. |
| Rail-to-Rail I/O | Full swing from V– to V+ on both inputs and output - maximizes dynamic range in single-supply 1.2 V systems. |
| EMI Rejection Ratio | 70 dB at 1 GHz - suppresses RF interference in noisy portable electronics environments (e.g., Bluetooth headsets). |
Pinout & Package
TLV9041IDCKR uses the SC70-5 (DCK) package: 2.0 mm × 2.1 mm, 0.65 mm pitch, 5-pin surface-mount outline with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output - drives loads up to 100 pF directly; rail-to-rail swing supports full utilization of 1.2 V supply headroom. |
| 2 | V– | Negative supply or ground reference - must be connected to system ground in single-supply configurations. |
| 3 | IN– | Inverting input - high-impedance node (100 GΩ || 0.5 pF); sensitive to PCB leakage; requires guard ring in precision designs. |
| 4 | IN+ | Noninverting input - same impedance as IN–; used for reference-based sensing (e.g., current shunt monitoring). |
| 5 | V+ | Positive supply - accepts 1.2–5.5 V; internal ESD diodes clamp inputs to rails ±0.5 V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply voltage | Operates down to 1.2 V - eliminates need for boost converters in coin-cell applications like fitness trackers. |
| Micro-power consumption | 10 µA quiescent current - extends battery life beyond 1 year in wake-on-motion sensor nodes with 10 µA average draw. |
| Integrated EMI filtering | RFI/EMI rejection on input pins - prevents corruption of weak sensor signals in Bluetooth/Wi-Fi coexistence environments. |
| No phase reversal | Robust input overdrive behavior - avoids latch-up or erroneous output during transient common-mode excursions in industrial sensors. |
| Wide temperature range | –40°C to +125°C operation - qualified for automotive cabin modules and building automation controllers without derating. |
Applications
| Wearable Fitness Monitor | Low-Side Current Sensing |
|---|---|
Use Scenario: Amplifying microvolt-level signals from piezoresistive strain gauges in smart wristbands during step detection. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail output driving ADC input at 1.2 V supply. Use Value: 1 pA input bias current prevents offset drift in high-impedance bridge circuits; 10 µA IQ enables multi-week battery life. |
Use Scenario: Measuring battery discharge current in portable EPOS terminals using a 10 mΩ shunt resistor. IC Role / Device Role / Timing Role: Single-supply, low-side current-sense amplifier with 0.6 mV VOS and 350 kHz GBW for fast transient response. Use Value: Rail-to-rail input allows sensing near ground; ±0.6 mV VOS limits measurement error to <0.06% at 1 A full-scale. |
| Wireless Headset Audio Preamp | PIR Motion Detector Signal Chain |
Use Scenario: Buffering electret microphone output before ADC in Bluetooth earbuds operating from 1.5 V coin cell. IC Role / Device Role / Timing Role: Low-noise (6.5 µVPP, 0.1–10 Hz), unity-gain stable buffer with EMI filtering. Use Value: 70 dB EMI rejection prevents RF demodulation artifacts; 10 µA IQ preserves battery runtime during standby. |
Use Scenario: Amplifying pyroelectric sensor output in battery-powered occupancy sensors with wake-on-motion logic. IC Role / Device Role / Timing Role: High-input-impedance, low-drift amplifier feeding comparator threshold detection circuitry. Use Value: 12 pA max input bias current avoids signal attenuation across high-value feedback networks; –40°C to 125°C rating ensures outdoor reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV8511IDBVR | Higher IQ (28 µA), wider VS (1.8–6 V), lower VOS (±0.35 mV), no EMI filtering | Better DC accuracy but incompatible with 1.2–1.5 V coin cells; unsuitable for EMI-prone wireless audio | Select when higher precision outweighs battery life and RF immunity requirements |
| OPA316IDBVR | Higher IQ (400 µA), wider VS (1.8–5.5 V), higher GBW (10 MHz), no 1.2 V support | Enables faster signal chains (e.g., active filters) but drains batteries 40× faster than TLV9041IDCKR | Select only when bandwidth >1 MHz is mandatory and power budget permits |
Compared with TLV8511IDBVR and OPA316IDBVR, TLV9041IDCKR uniquely supports 1.2 V operation and integrates EMI filtering - making it the only viable choice for sub-1.5 V, RF-dense, battery-limited applications where both ultra-low power and noise immunity are non-negotiable.
Availability
TLV9041IDCKR is available at Aetrix Electronics and suitable for wearable electronics, portable medical sensors, and building automation systems requiring stable component supply across extended production lifecycles.
Supply support for TLV9041IDCKR 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 design.
The TLV904x family was engineered specifically for battery-operated IoT endpoints and wearables - prioritizing 1.2 V operability, nanoamp quiescent current, and robustness against electromagnetic interference in compact form factors.
FAQ
What is the minimum supply voltage for reliable operation of TLV9041IDCKR?
The TLV9041IDCKR is fully specified and guaranteed to operate down to 1.2 V across –40°C to +125°C. At this voltage, key parameters including input offset voltage (±2.5 mV max), gain-bandwidth product (350 kHz), and rail-to-rail output swing remain within datasheet limits - enabling direct integration into 1.5 V coin-cell systems without voltage boosting.
Does TLV9041IDCKR support rail-to-rail input and output simultaneously?
Yes, TLV9041IDCKR supports true rail-to-rail input and output operation. Its input common-mode range extends from V– to V+, and its output swings within 1–8 mV of either rail depending on load - allowing full utilization of the 1.2 V supply range in single-ended configurations without level-shifting circuitry.
How does the EMI filtering in TLV9041IDCKR improve system-level robustness?
The TLV9041IDCKR integrates on-chip RFI/EMI rejection filters on its input pins, delivering 70 dB suppression at 1 GHz. This prevents high-frequency noise (e.g., from Bluetooth transceivers or switching regulators) from demodulating into audible or measurement band - a critical feature validated in headset and wireless sensor applications where unfiltered op-amps exhibit audible clicks or offset shifts.
Can TLV9041IDCKR drive capacitive loads without oscillation?
Yes, TLV9041IDCKR is characterized to drive up to 100 pF capacitive loads while maintaining >65° phase margin and stable step response. This capability eliminates the need for isolation resistors in ADC driver or filter applications - simplifying layout and preserving signal integrity in space-constrained wearable PCBs.
What is the thermal performance of TLV9041IDCKR in the SC70-5 package?
In the DCK (SC70-5) package, TLV9041IDCKR has a junction-to-ambient thermal resistance (RθJA) of 214.6°C/W. Under typical 10 µA operation, self-heating remains negligible (<0.002°C), ensuring stable DC performance in sealed enclosures. The package's small footprint (2.0 mm × 2.1 mm) also minimizes board area in high-density wearable layouts.
TLV9041IDCKR 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:
- 0.2V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 600 µV
- Current - Supply:
- 10µA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 1.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TLV9041IDCKR FAQ
1.How can I place an order for TLV9041IDCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9041IDCKR 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 TLV9041IDCKR reliable?
The price and inventory of TLV9041IDCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9041IDCKR is usually 5 days.
3.What payment methods are accepted for TLV9041IDCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9041IDCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9041IDCKR?
TLV9041IDCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9041IDCKR 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 TLV9041IDCKR?
For technical support, including TLV9041IDCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9041IDCKR requirements.
6.How does Aetrix verify that TLV9041IDCKR is sourced from the original manufacturer or authorized distributors?
All TLV9041IDCKR 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 TLV9041IDCKR meets industry standards.
7.What is the process for return or replacement of TLV9041IDCKR?
All TLV9041IDCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV9041IDCKR, 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 TLV9041IDCKR part is unused and in its original packaging.
Return procedure for TLV9041IDCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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