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Texas Instruments TLV9042SIRUGR
- Part No.:
- TLV9042SIRUGR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-XFQFN
- Datasheet:
-
TLV9042SIRUGR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:16,561
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Product details
Overview
TLV9042SIRUGR 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 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 TLV9042SIRUGR datasheet, TLV9042SIRUGR pinout, TLV9042SIRUGR application, or TLV9042SIRUGR equivalent, this page provides verified electrical specs, X2QFN-10 package details, shutdown-controlled dual-channel operation, low-noise performance (6.5 µVPP, 0.1–10 Hz), and real-world use cases in battery-sensitive analog front-ends.
Technical Context
The TLV9042SIRUGR implements a 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 independent channel shutdown via SHDN1 and SHDN2 pins, achieving <150 nA total quiescent current when both channels are disabled. The device maintains rail-to-rail input common-mode range down to V– and output swing within 1 mV of rails at light loads - critical for single-supply 1.2 V–1.5 V systems.
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 | 10 µA per channel - reduces average system power by >50% vs comparable micropower op-amps. |
| Input Offset Voltage | ±0.6 mV (max) - supports accurate DC-coupled sensing in low-gain current monitors and thermistor interfaces. |
| Gain-Bandwidth Product | 350 kHz - sufficient for anti-aliasing filters, sensor amplification, and slow-control loops up to ~35 kHz. |
| Input Noise (0.1–10 Hz) | 6.5 µVPP - preserves signal integrity in high-resolution ADC front-ends for wearable biopotential measurement. |
| Shutdown Current | 75 nA (typical) per channel - allows dynamic power gating in duty-cycled sensor nodes without leakage penalties. |
| Operating Temperature | –40°C to +125°C - qualified for industrial-grade environmental resilience in building automation and automotive cabin modules. |
Pinout & Package
RUG package is a 10-pin, 1.5 mm × 2.0 mm X2QFN with exposed thermal pad connected to V–. Pin pitch is 0.5 mm; no leaded package variant exists for TLV9042S.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V– (Pin 1) | Negative supply / ground reference | Must be connected to system ground or negative rail; thermal pad tied to this node for optimal thermal dissipation. |
| SHDN1 (Pin 2) | Channel 1 shutdown control | Logic high (>V– + 1 V) enables Channel 1; logic low disables it with <150 nA standby current. |
| SHDN2 (Pin 3) | Channel 2 shutdown control | Independent enable/disable of Channel 2; allows asymmetric power management in multi-sensor systems. |
| IN2+ (Pin 4) | Noninverting input, Channel 2 | High-impedance (100 GΩ || 0.5 pF) node for precision voltage sensing or reference buffering. |
| IN2– (Pin 5) | Inverting input, Channel 2 | Matches IN2+ in bias current (±12 pA max); supports low-offset differential amplification. |
| OUT2 (Pin 6) | Output, Channel 2 | Rail-to-rail swing (within 1 mV of rails at 100 kΩ load); drives 100 pF directly without oscillation. |
| V+ (Pin 7) | Positive supply | Accepts 1.2–5.5 V; PSRR of 77 dB (min) suppresses supply noise in noisy battery-fed systems. |
| OUT1 (Pin 8) | Output, Channel 1 | Electrically identical to OUT2; supports dual-path signal conditioning without cross-talk degradation. |
| IN1– (Pin 9) | Inverting input, Channel 1 | EMI-filtered input; rejects 1 GHz RF interference with 70 dB attenuation (EMIRR). |
| IN1+ (Pin 10) | Noninverting input, Channel 1 | Common-mode range extends to V– and V+; enables true single-supply operation with ground-referenced inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply voltage | Operates down to 1.2 V - eliminates need for LDOs in 1.5 V coin-cell designs, extending battery life. |
| Independent dual-channel shutdown | SHDN1/SHDN2 allow per-channel power gating - essential for adaptive sensor fusion in wearables. |
| Integrated EMI/RFI filtering | Input pins reject 1 GHz interference at 70 dB - prevents corruption in wireless-enabled portable electronics. |
| No phase reversal on overdrive | Remains stable during input overvoltage events - avoids latch-up or erroneous outputs in unconditioned sensor paths. |
| Rail-to-rail I/O with low headroom | Output swings within 1 mV of rails at light loads - maximizes dynamic range in low-voltage ADC interfaces. |
Applications
| Wearable Fitness Monitor | Single-Supply Current Sensing |
|---|---|
Use Scenario: Amplifying microvolt-level signals from photoplethysmography (PPG) LEDs and photodiodes in compact earbuds. IC Role / Device Role / Timing Role: Dual-channel RRIO op-amp performing transimpedance conversion and DC-coupled gain staging. Use Value: 10 µA/channel quiescent current extends battery life beyond 7 days; 6.5 µVPP noise ensures clean pulse waveform capture. | Use Scenario: Measuring bidirectional current in USB-C power delivery circuits using a shunt resistor and single 3.3 V supply. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with rail-to-rail input common-mode range down to ground. Use Value: ±0.6 mV offset enables <1% error at 100 mV full-scale; 350 kHz GBW supports fast transient response. |
| Building Automation Sensor Node | Low-Voltage Motion Detector |
Use Scenario: Conditioning analog outputs from PIR and ambient light sensors in battery-operated smart thermostats. IC Role / Device Role / Timing Role: Dual-channel signal conditioner for simultaneous temperature and occupancy detection. Use Value: Independent SHDN1/SHDN2 pins allow motion-triggered wake-up while keeping light-sense path active at <150 nA. | Use Scenario: Amplifying weak signals from microwave Doppler sensors operating from 1.5 V alkaline cells. IC Role / Device Role / Timing Role: Low-noise, low-power gain block preceding envelope detection and MCU ADC sampling. Use Value: 1.2 V minimum supply enables direct battery connection; 1 pA input bias prevents drift in high-Z sensor interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, dual-channel op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9042DR | SOIC-8 package (4.9 mm × 6 mm); no shutdown pins; 10 µA/ch quiescent current; same electrical specs. | Suitable for board space-constrained but not ultra-low-power duty-cycled systems; lacks independent channel disable. | Select TLV9042DR for cost-sensitive industrial PCBs where layout area is less critical than BOM count. |
| OPA2313IDR | 12 µA/ch quiescent current; 1 MHz GBW; 1.8 V min supply; SOIC-8/WSON-8 packages; no shutdown function. | Better bandwidth for higher-frequency sensor signals, but incompatible with 1.2–1.5 V coin-cell operation. | Choose OPA2313IDR when system supply ≥1.8 V and AC response >350 kHz is required, e.g., ultrasonic proximity sensing. |
Compared with TLV9042DR and OPA2313IDR, TLV9042SIRUGR uniquely combines 1.2 V operation, per-channel shutdown, and X2QFN-10 miniaturization - making it the only option for sub-2 mm², coin-cell-powered dual-sensor nodes requiring dynamic power control.
Availability
TLV9042SIRUGR is available at Aetrix Electronics and suitable for wearable electronics, battery-powered IoT edge nodes, and low-voltage industrial sensor interfaces requiring stable component supply across long production lifecycles.
Supply support for TLV9042SIRUGR 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 targets ultra-low-power, space-constrained applications including coin-cell wearables, portable medical devices, and energy-harvesting sensor nodes - prioritizing micropower efficiency without sacrificing DC accuracy or noise performance.
FAQ
What is the minimum supply voltage for reliable operation of TLV9042SIRUGR?
The TLV9042SIRUGR is fully specified to operate from 1.2 V to 5.5 V. At 1.2 V, it maintains rail-to-rail input common-mode range, 350 kHz gain-bandwidth, and 10 µA per channel quiescent current - enabling direct interface with 1.5 V coin cells and primary lithium batteries without voltage regulation. Performance parameters such as offset voltage and CMRR remain within datasheet limits across this range.
Does TLV9042SIRUGR support independent shutdown of each amplifier channel?
Yes, TLV9042SIRUGR provides two dedicated shutdown pins: SHDN1 (Pin 2) controls Channel 1, and SHDN2 (Pin 3) controls Channel 2. Each pin accepts standard CMOS logic levels - high (>V– + 1 V) enables the respective channel, low disables it. When both are low, total quiescent current drops to 75 nA (typical), making TLV9042SIRUGR ideal for adaptive power management in multi-sensor systems.
What package type and dimensions does TLV9042SIRUGR use?
TLV9042SIRUGR uses the RUG package: a 10-pin, 1.5 mm × 2.0 mm X2QFN with 0.5 mm pitch and an exposed thermal pad. The pad must be soldered to a V–-connected copper area for thermal and electrical performance. This package is 75% smaller than SOIC-8 and enables ultra-compact layouts in wearables and hearing aids where board area is at a premium.
How does TLV9042SIRUGR handle electromagnetic interference in portable designs?
TLV9042SIRUGR integrates RFI and EMI filtering on all input pins, achieving 70 dB electro-magnetic interference rejection ratio (EMIRR) at 1 GHz. This built-in filtering eliminates the need for external RC networks or ferrite beads in Bluetooth/Wi-Fi-enabled devices like earbuds and smartwatches - reducing BOM count and preventing signal corruption from nearby RF transceivers without degrading bandwidth or noise performance.
Can TLV9042SIRUGR drive capacitive loads without instability?
Yes, TLV9042SIRUGR is characterized to robustly drive up to 100 pF of capacitive load while maintaining ≥65° phase margin and monotonic step response. This capability allows direct connection to ADC input capacitors, long PCB traces, or LCD bias networks without external isolation resistors - simplifying layout and preserving signal fidelity in mixed-signal systems where TLV9042SIRUGR serves as a buffer or filter stage.
TLV9042SIRUGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- -
- 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:
- 10-X2QFN (2x1.5)
TLV9042SIRUGR FAQ
1.How can I place an order for TLV9042SIRUGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9042SIRUGR 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 TLV9042SIRUGR reliable?
The price and inventory of TLV9042SIRUGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9042SIRUGR is usually 5 days.
3.What payment methods are accepted for TLV9042SIRUGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9042SIRUGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9042SIRUGR?
TLV9042SIRUGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9042SIRUGR 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 TLV9042SIRUGR?
For technical support, including TLV9042SIRUGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9042SIRUGR requirements.
6.How does Aetrix verify that TLV9042SIRUGR is sourced from the original manufacturer or authorized distributors?
All TLV9042SIRUGR 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 TLV9042SIRUGR meets industry standards.
7.What is the process for return or replacement of TLV9042SIRUGR?
All TLV9042SIRUGR units undergo pre-shipment inspection (PSI). If there is an issue with TLV9042SIRUGR, 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 TLV9042SIRUGR part is unused and in its original packaging.
Return procedure for TLV9042SIRUGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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