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Texas Instruments TLV9044IDR
- Part No.:
- TLV9044IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV9044IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,060
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Product details
Overview
TLV9044IDR 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 TLV9044IDR datasheet, TLV9044IDR pinout, TLV9044IDR application, or TLV9044IDR equivalent, this page provides verified package mapping (SOIC-14), confirmed quad-channel RRIO op-amp functionality, low-noise (6.5 µVPP, 0.1–10 Hz) performance, thermal robustness (–40°C to 125°C), and validated alternatives for battery-operated analog front-ends.
Technical Context
The TLV9044IDR 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 ability to drive ≥100 pF capacitive loads simplify sensor interface design without external compensation.
It supports single-supply operation down to 1.2 V with rail-to-rail input common-mode range (V– to V+) and output swing within 1 mV of rails at light loads - critical for maximizing dynamic range in low-voltage ADC driver and current-sense amplifier configurations.
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-SOCl₂ batteries without regulation. |
| Quiescent Current / Channel | 10 µA typical - reduces total system standby power to <40 µA for quad-channel sensing nodes. |
| Input Offset Voltage | ±0.6 mV max - ensures ≤0.024% error at 25 mV full-scale in low-side current sensing. |
| Gain-Bandwidth Product | 350 kHz - supports stable closed-loop gain up to 100× at DC–3.5 kHz for ECG or PIR signal amplification. |
| Input Noise (0.1–10 Hz) | 6.5 µVPP - preserves SNR in sub-10 Hz biomedical and motion-detection applications. |
| Operating Temperature | –40°C to +125°C - qualified for industrial building automation and automotive cabin ambient sensing. |
| Rail-to-Rail I/O | Full V––V+ input range and output swing to within 1 mV of rails - maximizes ADC utilization in 1.8 V or 3.3 V systems. |
Pinout & Package
TLV9044IDR is packaged in a 14-pin SOIC (D) package measuring 8.65 mm × 6.0 mm, with exposed pad not present. Pin functions are electrically isolated per channel and share common V+ and V– supplies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT1, OUT2, OUT3, OUT4 | Amplifier outputs - each drives independent load; no internal crosstalk between channels. |
| 2, 6, 9, 13 | IN1–, IN2–, IN3–, IN4– | Inverting inputs - high-impedance (100 GΩ || 0.5 pF) for precision transducer interfacing. |
| 3, 5, 10, 12 | IN1+, IN2+, IN3+, IN4+ | Noninverting inputs - rail-to-rail common-mode range supports direct connection to resistive sensors. |
| 4 | V+ | Positive supply - accepts 1.2–5.5 V; decoupling capacitor required at pin for noise immunity. |
| 11 | V– | Negative supply or ground - serves as reference for single-supply operation and output swing baseline. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply voltage | Operates down to 1.2 V - eliminates need for LDOs in 1.5 V battery systems, reducing BOM count and quiescent loss. |
| Integrated EMI/RFI filtering | Input pins include on-die RC filters - suppresses GSM/Bluetooth interference without external ferrites or capacitors. |
| No phase reversal on overdrive | Remains stable when inputs exceed supply rails - prevents latch-up in unbuffered thermistor or potentiometer interfaces. |
| Robust 100 pF capacitive drive | Stable with direct connection to ADC input capacitance or long PCB traces - avoids external isolation resistors. |
| Low input bias current | 1 pA typical - minimizes voltage error across high-value feedback networks (>10 MΩ) used in pH or gas sensors. |
Applications
| Wearable Fitness Monitor | Single-Supply Current Sensing |
|---|---|
|
Use Scenario: Amplifying microvolt-level signals from photoplethysmography (PPG) LEDs and photodiodes in smartwatches. IC Role / Device Role: Quad-channel RRIO op-amp providing simultaneous DC-coupled gain, filtering, and level-shifting before 12-bit SAR ADC sampling. Use Value: 10 µA/channel quiescent current extends battery life beyond 7 days on CR2032; 6.5 µVPP noise preserves pulse amplitude fidelity. |
Use Scenario: Low-side bidirectional current measurement in portable power banks using shunt resistor and MCU ADC. IC Role / Device Role: Precision instrumentation amplifier front-end with rail-to-rail input enabling accurate zero-current detection at 1.2 V supply. Use Value: ±0.6 mV offset ensures <1% error at 100 mA full-scale; 1.2 V minimum supply allows direct integration with buck converter output. |
| Building Automation Sensor Node | PIR Motion Detector |
|
Use Scenario: Signal conditioning for CO₂, humidity, and temperature sensors in battery-powered HVAC controllers. IC Role / Device Role: Quad op-amp performing sensor excitation, bridge amplification, reference buffering, and ADC driving in one package. Use Value: –40°C to +125°C rating ensures reliability in attic-mounted units; 350 kHz GBW supports fast-response gas sensor readouts. |
Use Scenario: Amplifying weak differential signals from pyroelectric infrared (PIR) sensors in smart lighting controls. IC Role / Device Role: Dual-channel configured as AC-coupled preamp + active low-pass filter; remaining two channels buffer reference and comparator inputs. Use Value: No phase reversal prevents false triggers during transient overdrive; 1 pA input bias avoids drift in high-Z sensor paths. |
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 |
|---|---|---|---|
| TLV9004IDR | Higher quiescent current (60 µA/ch), wider supply range (1.8–5.5 V), lower GBW (1 MHz), no EMI filtering. | Better AC performance but unsuitable for 1.2–1.5 V coin-cell operation; requires higher supply headroom. | Select TLV9004IDR only if >1 MHz bandwidth is needed and supply ≥1.8 V is guaranteed. |
| OPA316QDGKRQ1 | Automotive-grade (AEC-Q100), 100 µA/ch, 10 MHz GBW, rail-to-rail I/O, no 1.2 V support. | Designed for under-hood automotive use; excessive power draw for wearable or IoT edge nodes. | Choose OPA316QDGKRQ1 only for automotive safety-critical systems requiring AEC-Q100 qualification. |
Compared with TLV9004IDR and OPA316QDGKRQ1, TLV9044IDR uniquely enables sub-1.5 V operation with lowest quiescent current and integrated EMI rejection - making it the sole option for extended-life, ultra-low-voltage sensor nodes where supply headroom and RF immunity are constrained.
Availability
TLV9044IDR is available at Aetrix Electronics and suitable for wearable electronics, building automation sensor nodes, and portable medical monitoring devices requiring stable component supply across multi-year production cycles.
Supply support for TLV9044IDR 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 op-amp innovation and broad manufacturing scale.
The TLV904x family was designed specifically for ultra-low-power, space-constrained applications such as battery-powered IoT endpoints and wearables - prioritizing 1.2 V operability, nanoamp quiescent current, and integrated noise immunity.
FAQ
What is the minimum supply voltage for reliable operation of TLV9044IDR?
The TLV9044IDR is fully specified to operate from 1.2 V to 5.5 V. At 1.2 V, it maintains rail-to-rail input/output swing, 350 kHz gain-bandwidth, and 10 µA typical quiescent current per channel - enabling direct use with 1.5 V coin cells and primary lithium batteries without voltage regulation.
Does TLV9044IDR support true rail-to-rail input and output?
Yes. TLV9044IDR features rail-to-rail input common-mode range (V– to V+) and rail-to-rail output swing - delivering output voltages within 1 mV of V– and V+ at light loads (100 kΩ). This maximizes dynamic range in low-voltage ADC driver and sensor interface circuits.
What is the input bias current specification for TLV9044IDR?
The TLV9044IDR has an input bias current of ±1 pA typical and ±12 pA maximum across temperature (–40°C to +125°C). This ultra-low value minimizes offset errors in high-impedance sensor interfaces, such as pH electrodes, photodiode transimpedance stages, and thermistor bridges.
Can TLV9044IDR drive capacitive loads without oscillation?
Yes. TLV9044IDR is characterized to drive ≥100 pF capacitive loads while maintaining stability and phase margin >65°. This allows direct connection to ADC input capacitance or long PCB traces without series isolation resistors - simplifying layout and preserving signal integrity.
Is TLV9044IDR qualified for industrial temperature range?
Yes. TLV9044IDR is fully specified and tested over –40°C to +125°C ambient temperature. Its electrical parameters - including input offset voltage drift (±0.8 µV/°C), PSRR (±100 µV/V), and quiescent current (≤13.5 µA/ch) - are guaranteed across this range, supporting deployment in harsh industrial environments.
TLV9044IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- 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-SOIC
TLV9044IDR FAQ
1.How can I place an order for TLV9044IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9044IDR 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 TLV9044IDR reliable?
The price and inventory of TLV9044IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9044IDR is usually 5 days.
3.What payment methods are accepted for TLV9044IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9044IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9044IDR?
TLV9044IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9044IDR 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 TLV9044IDR?
For technical support, including TLV9044IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9044IDR requirements.
6.How does Aetrix verify that TLV9044IDR is sourced from the original manufacturer or authorized distributors?
All TLV9044IDR 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 TLV9044IDR meets industry standards.
7.What is the process for return or replacement of TLV9044IDR?
All TLV9044IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV9044IDR, 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 TLV9044IDR part is unused and in its original packaging.
Return procedure for TLV9044IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV9044IDR Tags
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