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Texas Instruments TLV9042IPWR
- Part No.:
- TLV9042IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV9042IPWR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,840
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Product details
Overview
TLV9042IPWR from Texas Instruments is a dual-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 input offset voltage and 350 kHz gain-bandwidth product, and is used in battery-powered wearable sensors and low-side current sensing circuits.
For engineers reviewing the TLV9042IPWR datasheet, TLV9042IPWR pinout, TLV9042IPWR application, or TLV9042IPWR equivalent, this page delivers verified electrical specs, SOIC-8 package mapping, real-world use cases in portable electronics and motion detection, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TLV9042IPWR implements a low-power CMOS input stage enabling 1 pA typical input bias current and operation down to 1.2 V - supporting coin-cell (1.5 V) applications. Its unity-gain stability and robust 100 pF capacitive load drive simplify filter and sensor interface design without external compensation.
Integrated RFI/EMI filtering on input pins suppresses high-frequency interference, while no-phase-reversal behavior under input overdrive ensures reliable operation in transient-rich environments like PIR motion detectors and EPOS terminals.
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 cell or Li-ion battery without regulator. |
| Quiescent Current | 10 µA per channel - reduces total system standby power to sub-20 µA for dual-channel signal conditioning. |
| 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 bandwidth-limited biosensor front-ends and motion detector analog filters (e.g., 10–100 Hz bandpass). |
| Input Bias Current | 1 pA (typ), 12 pA (max) - minimizes voltage error across high-impedance sources like piezoelectric transducers or pH electrodes. |
| Rail-to-Rail I/O | Full swing from V– to V+ - maximizes dynamic range in single-supply systems, eliminating level-shifting circuitry. |
| EMI Rejection Ratio | 70 dB at 1 GHz - mitigates RF ingress from Bluetooth/Wi-Fi coexistence in earbuds and wearables. |
Pinout & Package
TLV9042IPWR is housed in an 8-pin SOIC (D) package measuring 4.9 mm × 6 mm, with exposed pad not present. Thermal resistance RθJA is 148.3°C/W, suitable for moderate-power PCB layouts without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 (Pin 1) | Output, Channel 1 | Drives downstream ADC input or filter network; rail-to-rail swing supports full utilization of 12-bit+ converters. |
| IN1– (Pin 2) | Inverting Input, Channel 1 | Accepts feedback signal in inverting configurations; high impedance avoids loading of preceding stages. |
| IN1+ (Pin 3) | Noninverting Input, Channel 1 | Connects to sensor output or reference node; internal EMI filtering reduces noise coupling in noisy environments. |
| V– (Pin 4) | Negative Supply / Ground | Serves as common return for single-supply operation; must be connected directly to low-impedance ground plane. |
| IN2+ (Pin 5) | Noninverting Input, Channel 2 | Enables dual-sensor monitoring (e.g., differential temperature or dual-axis motion) with matched DC performance. |
| IN2– (Pin 6) | Inverting Input, Channel 2 | Supports independent gain-setting resistors per channel; no crosstalk due to isolated input stages. |
| OUT2 (Pin 7) | Output, Channel 2 | Provides second analog path without shared output stage; allows simultaneous signal conditioning for multi-parameter sensing. |
| V+ (Pin 8) | Positive Supply | Accepts 1.2–5.5 V; internal regulation ensures stable biasing across supply variation, critical for battery discharge profiles. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply voltage support | Operates down to 1.2 V - enables direct integration into energy-harvesting nodes and disposable medical patches. |
| Integrated RFI/EMI filtering | Reduces susceptibility to 900 MHz–2.4 GHz interference without external RC networks - saves board space in compact earbuds. |
| No phase reversal on overdrive | Prevents latch-up or erroneous output during sensor saturation (e.g., sudden PIR trigger), improving system reliability. |
| Robust 100 pF capacitive load drive | Stable operation into ADC input capacitance or long PCB traces - eliminates need for isolation resistors in sensor-to-ADC paths. |
| Wide temperature range | Specified from –40°C to +125°C - qualified for industrial building automation and automotive cabin ambient sensing. |
Applications
| Wearable Fitness Monitor | Low-Side Current Sensing |
|---|---|
Use Scenario: Amplifying microvolt-level signals from photoplethysmography (PPG) LEDs and photodiodes in wrist-worn heart-rate monitors. IC Role / Device Role: Dual-channel RRIO op-amp providing gain and baseline stabilization for AC-coupled optical sensor front-end. Use Value: 10 µA/channel quiescent current extends battery life beyond 7 days on CR2032; 1 pA input bias prevents signal drift from high-impedance photodiode. | Use Scenario: Measuring load current in battery-powered point-of-sale (EPOS) terminals using shunt resistor below ground. IC Role / Device Role: Single-supply, rail-to-rail input amplifier configured in noninverting topology to sense voltage across 10 mΩ shunt. Use Value: ±0.6 mV offset ensures <0.5% measurement error at 100 mA full-scale; 1.2 V minimum supply allows operation during deep battery discharge. |
| Motion Detection (PIR) | Headset Audio Conditioning |
Use Scenario: Amplifying and filtering weak pyroelectric sensor outputs in smart home occupancy sensors. IC Role / Device Role: Dual op-amp implementing active bandpass filter (0.3–10 Hz) and DC-blocking stage before comparator. Use Value: No-phase-reversal behavior prevents false triggers during rapid ambient IR transients; 350 kHz GBW supports clean 10 Hz cutoff with minimal phase lag. | Use Scenario: Buffering and level-shifting microphone signals in Bluetooth earbuds with 1.8 V DSP core. IC Role / Device Role: Rail-to-rail output buffer driving 10 kΩ ADC input while rejecting RF noise from nearby 2.4 GHz radio. Use Value: 70 dB EMI rejection ratio suppresses Bluetooth-induced distortion; 10 µA quiescent current aligns with ultra-low-power audio SoC sleep modes. |
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 |
|---|---|---|---|
| OPA316IDR | Higher quiescent current (400 µA/ch), higher GBW (10 MHz), wider supply range (1.8–5.5 V) | Better for higher-speed signal chains (e.g., active filters >1 kHz); unsuitable for coin-cell operation due to 40× higher IQ | Select when speed outweighs power; avoid where <15 µA total system IQ is mandatory. |
| LPV821DBVR | Lower IQ (650 nA/ch), lower GBW (6.5 kHz), same 1.2–5.5 V supply | Optimized for nano-power sensor wake-up circuits; insufficient bandwidth for motion detector filtering or audio buffering | Choose for always-on environmental monitors; reject for applications requiring >100 kHz closed-loop response. |
Compared with OPA316IDR and LPV821DBVR, TLV9042IPWR uniquely balances sub-15 µA power, 350 kHz bandwidth, and 1.2 V operation - making it the only dual-channel option viable for 1.5 V coin-cell wearables requiring both precision and responsiveness.
Availability
TLV9042IPWR is available at Aetrix Electronics and suitable for portable electronics, wearable fitness monitors, and building automation systems requiring stable component supply across multi-year production cycles.
Supply support for TLV9042IPWR 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 for industrial, automotive, and personal electronics markets.
The TLV904x family targets ultra-low-power, cost-sensitive signal conditioning in battery-operated IoT endpoints - emphasizing 1.2 V operation, rail-to-rail performance, and integrated EMI resilience for space-constrained designs.
FAQ
What is the minimum supply voltage for TLV9042IPWR?
The TLV9042IPWR operates down to 1.2 V, enabling direct use with 1.5 V coin-cell batteries and low-voltage energy-harvesting sources. 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 TLV9042IPWR support rail-to-rail input and output?
Yes, TLV9042IPWR provides true rail-to-rail input and output swing. Input common-mode range extends from V– to V+, and output can drive within 1 mV of either rail under light loads (100 kΩ), as confirmed in Section 6.7 Electrical Characteristics of the TLV9042IPWR datasheet.
What is the quiescent current per channel for TLV9042IPWR?
The TLV9042IPWR draws 10 µA per channel at 5.5 V supply and 25°C, with a maximum of 13.5 µA across –40°C to +125°C. This value is measured under no-load conditions and is specified in Table 6-7 of the official TLV9042IPWR datasheet.
Which package does TLV9042IPWR use?
TLV9042IPWR uses the SOIC-8 (D) package, 4.9 mm × 6 mm body size, with standard gull-wing leads. Pinout matches industry-standard dual op-amp layout, and thermal resistance RθJA is 148.3°C/W per Section 6.5 of the TLV9042IPWR datasheet.
Is TLV9042IPWR suitable for single-supply operation?
Yes, TLV9042IPWR is explicitly designed for single-supply operation. Its rail-to-rail input allows V– to serve as ground reference, and its output swings fully to V– and V+, enabling use in 1.2–5.5 V systems without split supplies - a key feature highlighted in the TLV9042IPWR device description and Section 6.7.
TLV9042IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 400 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:
- 8-TSSOP
TLV9042IPWR FAQ
1.How can I place an order for TLV9042IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9042IPWR 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 TLV9042IPWR reliable?
The price and inventory of TLV9042IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9042IPWR is usually 5 days.
3.What payment methods are accepted for TLV9042IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9042IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9042IPWR?
TLV9042IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9042IPWR 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 TLV9042IPWR?
For technical support, including TLV9042IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9042IPWR requirements.
6.How does Aetrix verify that TLV9042IPWR is sourced from the original manufacturer or authorized distributors?
All TLV9042IPWR 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 TLV9042IPWR meets industry standards.
7.What is the process for return or replacement of TLV9042IPWR?
All TLV9042IPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLV9042IPWR, 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 TLV9042IPWR part is unused and in its original packaging.
Return procedure for TLV9042IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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