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Texas Instruments TLV9044IDYYR
- Part No.:
- TLV9044IDYYR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-14 Thin, SOT-23 Variant
- Datasheet:
-
TLV9044IDYYR.pdf
- Description:
- QUAD, 5.5-V, 350-KHZ, ULTRA-LOW
- Quantity:
- Payment:
- Shipping:
Inventory:20,871
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Product details
Overview
TLV9044IDYYR from Texas Instruments is a quad-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 per channel, features ±0.6 mV max input offset voltage, and delivers 350 kHz gain-bandwidth - enabling precision signal conditioning in coin-cell-powered wearables and IoT sensors.
For engineers reviewing the TLV9044IDYYR datasheet, TLV9044IDYYR pinout, TLV9044IDYYR application, or TLV9044IDYYR equivalent, this page provides verified specifications, package-validated pin functions, real-world use cases in low-power analog front-ends, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The TLV9044IDYYR implements a low-power CMOS input stage with 1 pA typical input bias current and integrated RFI/EMI filtering on all inputs. Its unity-gain stability and robust 100 pF capacitive load drive capability simplify layout in space-constrained PCBs without external compensation.
It supports full rail-to-rail operation at 1.2 V supply, maintains >60 dB CMRR across –40°C to 125°C, and achieves 6.5 µVP-P integrated noise (0.1–10 Hz) - making it suitable for high-impedance sensor interfaces where quiescent current and input error sources dominate system accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 5.5 V - enables direct operation from single 1.5 V coin cells or Li-ion battery rails without LDO. |
| Quiescent Current / Channel | 10 µA typical - allows four independent amplifiers to consume <45 µA total in active mode, critical for multi-sensor nodes. |
| Input Offset Voltage | ±0.6 mV max - ensures ≤0.2% gain error in 12-bit ADC front-ends with 1 V full-scale reference. |
| Gain-Bandwidth Product | 350 kHz - supports anti-aliasing filtering and sensor signal amplification up to ~35 kHz at unity gain. |
| Input Bias Current | 1 pA typical - minimizes voltage error across >100 MΩ source impedances (e.g., pH electrodes, piezoresistive sensors). |
| Rail-to-Rail I/O | Fully functional swing within 1 mV of rails at 100 kΩ load - preserves dynamic range in single-supply, low-voltage systems. |
| Operating Temperature | –40°C to +125°C - qualified for industrial and automotive cabin ambient environments. |
Pinout & Package
SOT-23-THN (DYY) 14-pin package: 4.2 mm × 3.26 mm footprint with exposed thermal pad connected to V–; designed for high-density, low-profile layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT1, OUT2, OUT3, OUT4 | Amplifier output terminals - each drives ≥100 pF directly; no phase reversal on overdrive. |
| 2, 6, 9, 13 | IN1–, IN2–, IN3–, IN4– | Inverting inputs - 100 GΩ common-mode input impedance; EMI-filtered for noisy environments. |
| 3, 5, 10, 12 | IN1+, IN2+, IN3+, IN4+ | Noninverting inputs - rail-to-rail common-mode range from V– to V+; 1 pA bias current enables high-Z sensing. |
| 4 | V+ | Positive supply terminal - accepts 1.2–5.5 V; decoupling capacitor required within 1 cm. |
| 11 | V– | Negative supply or ground - internal thermal pad must be soldered to this net for thermal reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply voltage | Operates down to 1.2 V - eliminates need for boost converters in 1.5 V coin-cell applications. |
| Micro-power consumption | 10 µA/ch quiescent current - extends battery life in always-on wearable monitors beyond 1 year. |
| Integrated EMI filtering | RFI/EMI rejection ratio ≥70 dB at 1 GHz - suppresses cellular/Wi-Fi interference without external RC filters. |
| No phase reversal | Guaranteed non-inverting behavior during input overdrive - prevents latch-up in sensor saturation events. |
| High temperature grade | Specified from –40°C to +125°C - supports deployment in automotive body control modules and smart building sensors. |
Applications
| Wearable Fitness Monitor | Single-Supply Current Sensing |
|---|---|
|
Use Scenario: Amplifying microvolt-level signals from photoplethysmography (PPG) LEDs and photodiodes in wrist-worn heart-rate sensors. IC Role / Device Role / Timing Role: Quad-channel RRIO op-amp providing simultaneous DC-coupled gain, baseline correction, and LED driver feedback. Use Value: 10 µA/ch current draw enables continuous PPG acquisition for >12 months on CR2032; rail-to-rail output maximizes ADC utilization. |
Use Scenario: Low-side current sensing in battery management systems for portable medical devices. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with 1 pA input bias minimizing shunt resistor error. Use Value: ±0.6 mV offset ensures <1% measurement error at 100 mV shunt drop; 1.2 V operation supports direct connection to fuel gauge ICs. |
| Headset Audio Signal Conditioning | Motion Detector Analog Front-End |
|
Use Scenario: Biasing and amplifying electret microphone outputs in Bluetooth earbuds with tight power budgets. IC Role / Device Role / Timing Role: Dual-channel amplifier providing mic bias (via internal resistor network) and AC-coupled gain before ADC. Use Value: Integrated EMI filtering rejects RF ingress from 2.4 GHz transceivers; 6.5 µVP-P 0.1–10 Hz noise preserves voice SNR. |
Use Scenario: Signal conditioning for passive infrared (PIR) motion detectors in smart home occupancy sensors. IC Role / Device Role / Timing Role: Quad op-amp implementing window comparator, bandpass filter, and amplifier stages in one package. Use Value: 350 kHz GBW supports 10 Hz–10 kHz detection bandwidth; 125°C rating ensures reliability behind wall-mounted enclosures. |
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 |
|---|---|---|---|
| OPA316IDBVR | Higher quiescent current (400 µA/ch), wider GBW (10 MHz), but same 1.8–5.5 V supply range and SOIC/TSSOP packaging. | Better for higher-frequency sensor interfaces (e.g., ultrasonic distance sensing); not suitable for sub-10 µA battery life targets. | Select when bandwidth >1 MHz is required and power budget allows >4× higher IQ. |
| LPV821DBVR | Lower IQ (650 nA/ch), lower GBW (6.5 kHz), same 1.6–5.5 V supply; optimized for nano-power, not ultra-low-voltage operation. | Ideal for wake-up circuits and intermittent sensing; cannot operate below 1.6 V, excluding 1.5 V coin cell use. | Select when longest battery life is priority and signal bandwidth <10 kHz suffices. |
Compared with TLV9044IDYYR, OPA316IDBVR trades 40× higher quiescent current for 28× greater bandwidth, while LPV821DBVR reduces IQ by 15× but sacrifices 54× bandwidth and fails to support 1.2 V operation - making TLV9044IDYYR uniquely balanced for 1.2–5.5 V, 10 µA/ch, 350 kHz applications.
Availability
TLV9044IDYYR is available at Aetrix Electronics and suitable for wearable electronics, battery-powered IoT sensors, and portable medical devices requiring stable component supply across extended production lifecycles.
Supply support for TLV9044IDYYR 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 and embedded processing solutions, with over 90 years of innovation in precision analog design and low-power signal chain technology.
The TLV904x family was engineered specifically for ultra-low-voltage, micro-power applications in space- and energy-constrained systems - targeting battery-operated wearables, portable health monitors, and industrial edge sensors.
FAQ
What is the minimum supply voltage for TLV9044IDYYR?
The TLV9044IDYYR operates down to 1.2 V, enabling direct use with 1.5 V alkaline or lithium coin cells without voltage boosting. This specification is guaranteed across the full –40°C to +125°C temperature range and is validated per TI's SBOS836H datasheet Section 6.3.
Does TLV9044IDYYR include shutdown functionality?
No - TLV9044IDYYR is the standard quad-channel variant without integrated shutdown pins. The shutdown-enabled version is TLV9044S (e.g., TLV9044SIDYYR), which adds SHDN1/SHDN2 pins and reduces quiescent current to <200 nA per amplifier when disabled.
What is the maximum capacitive load TLV9044IDYYR can drive stably?
TLV9044IDYYR is specified to robustly drive 100 pF loads without external compensation, as confirmed in Section 7.3.10 of the datasheet. Phase margin remains ≥65° at 10 pF and ≥48° at 150 pF, supporting direct connection to ADC input capacitors and long PCB traces.
Is TLV9044IDYYR pin-compatible with other TLV904x variants?
TLV9044IDYYR uses a 14-pin SOT-23-THN (DYY) package with unique pinout - it is not pin-compatible with TLV9042 (8-pin) or TLV9041 (5-pin) variants. However, its pin functions align with the TLV9044 family across SOIC (D) and TSSOP (PW) packages per Table 5-5.
What does "RRIO" mean for TLV9044IDYYR?
RRIO stands for Rail-to-Rail Input and Output: TLV9044IDYYR accepts input voltages from V– to V+, and its output swings within 1 mV of either rail under 100 kΩ load - preserving full signal range in single-supply, low-voltage systems like 1.8 V or 2.5 V microcontroller interfaces.
TLV9044IDYYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-14 Thin, SOT-23 Variant
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 Channels)
- 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:
- 14-SOT-23-THIN
TLV9044IDYYR FAQ
1.How can I place an order for TLV9044IDYYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9044IDYYR 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 TLV9044IDYYR reliable?
The price and inventory of TLV9044IDYYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9044IDYYR is usually 5 days.
3.What payment methods are accepted for TLV9044IDYYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9044IDYYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9044IDYYR?
TLV9044IDYYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9044IDYYR 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 TLV9044IDYYR?
For technical support, including TLV9044IDYYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9044IDYYR requirements.
6.How does Aetrix verify that TLV9044IDYYR is sourced from the original manufacturer or authorized distributors?
All TLV9044IDYYR 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 TLV9044IDYYR meets industry standards.
7.What is the process for return or replacement of TLV9044IDYYR?
All TLV9044IDYYR units undergo pre-shipment inspection (PSI). If there is an issue with TLV9044IDYYR, 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 TLV9044IDYYR part is unused and in its original packaging.
Return procedure for TLV9044IDYYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV9044IDYYR Tags
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