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Texas Instruments TLV342IDGKR
- Part No.:
- TLV342IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV342IDGKR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,765
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Product details
Overview
TLV342IDGKR from Texas Instruments is a dual, low-voltage, rail-to-rail output CMOS operational amplifier with active-low shutdown control, designed for precision signal conditioning in space-constrained, battery-powered systems. It delivers 2.3MHz gain bandwidth, 0.9V/μs slew rate, and 70μA per channel supply current at 1.8V, enabling high-fidelity audio preamplification and battery monitoring in portable electronics.
For engineers reviewing the TLV342IDGKR datasheet, TLV342IDGKR pinout, TLV342IDGKR application, or TLV342IDGKR equivalent, key selection criteria include its 1.5V–5.5V single-supply operation, –40°C to 125°C extended temperature range, A-grade 1.25mV max input offset voltage at 25°C, and X2QFN-10 package with integrated shutdown functionality.
Technical Context
The TLV342IDGKR implements a PMOS input stage enabling ultra-low 1pA typical input bias current and common-mode input range extending from –0.2V to (V+ – 0.5V), supporting ground-sensing applications. Its CMOS output stage achieves rail-to-rail swing with ≤25mV from each rail under 10kΩ load at 1.8V.
Shutdown mode reduces supply current to 10pA typical per channel while placing the outputs in high-impedance state; turnon time from shutdown is 5μs typical. The device operates across 1.5V–5.5V supply and maintains ≥55° phase margin with 200pF capacitive load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5V to 5.5V - enables direct integration into Li-ion, coin-cell, and 3.3V/5V systems without level shifting |
| Gain Bandwidth Product | 2.3MHz typical - supports stable closed-loop gain up to ~23 at 100kHz for sensor signal amplification |
| Input Offset Voltage (A grade) | 1.25mV max at 25°C - ensures <0.1% error in 12-bit ADC front-ends with ±1V input range |
| Rail-to-Rail Output Swing | ≤25mV from V+ and GND at 10kΩ load - maximizes dynamic range in low-voltage audio and supply monitoring |
| Shutdown Current | 10pA typical per channel - extends battery life in intermittent-sampling systems by >1000× vs active mode |
| Input Bias Current | 1pA typical - prevents loading errors in high-impedance pH sensors, photodiode transimpedance stages, and leakage-critical circuits |
| Operating Temperature | –40°C to 125°C - qualified for automotive cabin modules, industrial motor controllers, and outdoor IoT nodes |
Pinout & Package
The TLV342IDGKR is housed in a 10-pin X2QFN package (1.5mm × 2.0mm, 0.5mm pitch) with wettable flanks for automated optical inspection. Thermal resistance RθJA is 167°C/W, supporting continuous operation at ambient temperatures up to 85°C with minimal derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | Accepts signals down to –0.2V; compatible with ground-referenced sensors and DAC outputs |
| 1IN− | Inverting input, Channel 1 | High-impedance node; requires matched trace routing to minimize offset drift from parasitic capacitance |
| 1OUT | Output, Channel 1 | Rail-to-rail capable; drives 10kΩ loads to within 25mV of V+ or GND at 1.8V supply |
| GND | Ground reference | Common return for both channels; must connect to low-impedance analog ground plane |
| NC | No internal connection | Pins 3 and 8 are unconnected - leave floating or tie to GND only if required for mechanical stability |
| 2IN+ | Noninverting input, Channel 2 | Independent input path; supports dual-channel filtering or differential input stage configuration |
| 2IN− | Inverting input, Channel 2 | Matches 1IN− characteristics; enables matched gain-setting resistor networks |
| 2OUT | Output, Channel 2 | Electrically isolated from 1OUT; allows independent signal paths without crosstalk |
| V+ | Positive supply | Single-supply input; accepts 1.5–5.5V; bypass with 0.1μF ceramic capacitor placed ≤2mm from pin |
| SHDN | Active-low shutdown control | Pull to GND to disable both amplifiers; pull to V+ to enable; 5μs wake-up latency |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 1pA typical - eliminates voltage error in MΩ-range feedback networks used in precision integrators |
| A-grade offset voltage | 1.25mV max at 25°C - reduces calibration burden in factory-trimmed medical sensor modules |
| 1.5V minimum supply operation | Functional at single 1.5V alkaline cell - enables direct battery coupling without regulators in wearables |
| ESD robustness | 2000V HBM - withstands handling in non-ESD-controlled assembly environments without additional protection |
| Turnon time from shutdown | 5μs typical - supports microsecond-scale duty cycling in energy-harvesting sensor nodes |
Applications
| Battery Monitoring | Audio Preamplification |
|---|---|
Use Scenario: Real-time measurement of single-cell Li-ion voltage during charge/discharge cycles in Bluetooth earbuds. IC Role / Device Role / Timing Role: Dual op-amp configured as precision buffer + differential amplifier to reject common-mode noise on PCB traces. Use Value: 1.25mV max offset ensures <0.05% full-scale error over 3.0–4.2V range; rail-to-rail output preserves resolution at low SOC. | Use Scenario: Low-noise microphone preamplifier in voice-controlled smart home hubs operating from 3.3V USB power. IC Role / Device Role / Timing Role: First-stage gain block with 20nV/√Hz input voltage noise and 2.3MHz GBW for wideband voice capture. Use Value: 1pA input bias avoids loading electret mic bias resistors; shutdown mode cuts quiescent current to 20pA for always-listening standby. |
| Portable ECG Front-End | Supply Current Sensing |
Use Scenario: Instrumentation amplifier input stage in handheld ECG monitors powered by two AAA batteries. IC Role / Device Role / Timing Role: Dual-channel buffer isolating electrode inputs before programmable-gain instrumentation amplifier. Use Value: –0.2V to (V+ – 0.5V) common-mode range accommodates electrode DC offsets; 125°C rating supports sterilization cycles. | Use Scenario: High-side current sensing in USB-C PD power delivery modules using 10mΩ shunt resistors. IC Role / Device Role / Timing Role: Difference amplifier with matched internal resistors rejecting common-mode voltage up to 5.5V. Use Value: 75dB min PSRR at 5V supply rejects ripple from switching regulators; 70μA/channel enables always-on monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV342IDR | VSSOP-8 package (3.0mm × 3.0mm); no shutdown pin; 200μA/channel supply current | Lacks power gating - unsuitable for ultra-low-power intermittent sampling | Select when board area permits larger package and shutdown is unnecessary |
| OPA2333AIDGKR | Zero-drift architecture; 0.02μV/°C offset drift; 17μA/channel; no shutdown | Superior DC accuracy but higher cost and no power-down capability | Select for precision DC-coupled sensor interfaces where offset drift dominates error budget |
Compared with TLV342IDR and OPA2333AIDGKR, the TLV342IDGKR uniquely combines X2QFN-10 miniaturization, active-low shutdown, and A-grade offset in a single 1.5–5.5V supply solution - making it optimal for size- and energy-constrained dual-channel signal chains.
Availability
TLV342IDGKR is available at Aetrix Electronics and suitable for battery monitoring, portable medical devices, and USB-C power delivery systems requiring stable component supply, long-term lifecycle support, and guaranteed authentic sourcing from Texas Instruments.
Supply support for TLV342IDGKR 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, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TLV34xx family was engineered for ultra-low-voltage, low-power precision amplification in portable and battery-operated equipment - emphasizing rail-to-rail output, shutdown capability, and extended temperature performance.
FAQ
What is the maximum supply voltage for TLV342IDGKR?
The absolute maximum supply voltage for TLV342IDGKR is 5.5V. Operation above this level risks permanent damage. Recommended operating range is 1.5V to 5.5V, with full specification compliance verified at 1.8V and 5V per the datasheet's electrical characteristics tables. Exceeding 5.5V violates Absolute Maximum Ratings and voids warranty coverage.
Does TLV342IDGKR support true rail-to-rail input?
TLV342IDGKR does not support rail-to-rail input - its common-mode input voltage range extends from –0.2V to (V+ – 0.5V), meaning the upper limit stops 0.5V below V+. However, it does provide rail-to-rail output swing, achieving ≤25mV from both supply rails under 10kΩ load at 1.8V. This makes it suitable for ground-referenced inputs but not for sensing signals near V+.
How does shutdown mode affect the output state of TLV342IDGKR?
In shutdown mode (SHDN pin pulled low), both amplifier outputs of TLV342IDGKR enter high-impedance state - neither sourcing nor sinking current. This prevents loading downstream circuitry and eliminates signal interference. The supply current drops to 10pA typical per channel. Outputs remain in high-Z until 5μs after SHDN is returned high, ensuring clean power-state transitions.
Can TLV342IDGKR drive capacitive loads?
TLV342IDGKR is characterized for stability with up to 200pF capacitive load, maintaining ≥55° phase margin per Figure 5-24. Driving larger capacitive loads (e.g., >500pF) may cause peaking or oscillation. For such cases, isolate the amplifier output with a series resistor (e.g., 10–100Ω) placed adjacent to the IC pin, or use a unity-gain stable op-amp variant like TLV342S which includes enhanced capacitive-load drive capability.
Is TLV342IDGKR pin-compatible with other TLV342 variants?
TLV342IDGKR (X2QFN-10) is not pin-compatible with TLV342IDR (VSSOP-8) or TLV342CDR (SOIC-8) due to differing pin counts, layouts, and presence of shutdown functionality. The X2QFN-10 package includes dedicated SHDN and NC pins absent in 8-pin variants. Migration requires PCB redesign and layout validation - no drop-in replacement exists across these packages.
TLV342IDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 2.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 75µA (x2 Channels)
- Current - Output / Channel:
- 115 mA
- Voltage - Supply Span (Min):
- 1.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TLV342IDGKR FAQ
1.How can I place an order for TLV342IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV342IDGKR 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 TLV342IDGKR reliable?
The price and inventory of TLV342IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV342IDGKR is usually 5 days.
3.What payment methods are accepted for TLV342IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV342IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV342IDGKR?
TLV342IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV342IDGKR 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 TLV342IDGKR?
For technical support, including TLV342IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV342IDGKR requirements.
6.How does Aetrix verify that TLV342IDGKR is sourced from the original manufacturer or authorized distributors?
All TLV342IDGKR 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 TLV342IDGKR meets industry standards.
7.What is the process for return or replacement of TLV342IDGKR?
All TLV342IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV342IDGKR, 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 TLV342IDGKR part is unused and in its original packaging.
Return procedure for TLV342IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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