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Texas Instruments TL034CPWR
- Part No.:
- TL034CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL034CPWR.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,587
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Product details
Overview
TL034CPWR from Texas Instruments is a quad FET-input operational amplifier optimized for low-power, low-offset precision analog signal conditioning in industrial and energy systems. It delivers 1.1 MHz unity-gain bandwidth, ±15 V or ±5 V dual-supply operation, 120 μA per amplifier supply current, 1.5 mV max input offset voltage (TL034AC grade), and 1012 Ω input resistance - enabling high-impedance sensor interfacing in solar inverters and motor drive feedback loops.
For engineers reviewing the TL034CPWR datasheet, TL034CPWR pinout, TL034CPWR application, or TL034CPWR equivalent, this page provides verified electrical specifications, TSSOP-14 package details, real-world use cases in AC/DC power conversion, and validated alternative options for design continuity and sourcing resilience.
Technical Context
The TL034CPWR implements enhanced JFET-input architecture with on-chip offset-voltage trimming, delivering improved DC accuracy over legacy TL06x amplifiers without increasing quiescent current. Its 2.9 V/μs typical slew rate and 130 dB large-signal open-loop gain support stable closed-loop performance in precision instrumentation and control loops.
Designed for dual-supply operation, it requires careful attention to common-mode input voltage limits (e.g., −11.5 V to +14 V at ±15 V supplies) and output swing constraints (±14.955 V into 10 kΩ). Single-supply use demands external DC biasing and virtual-ground referencing via devices like the TLE2426.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - supports standard industrial dual-rail power domains without level-shifting circuitry |
| Input Offset Voltage | Max 1.5 mV (TL034AC spec, 25°C) - enables sub-10-bit error budget in 12-bit ADC front-ends |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for anti-aliasing filtering and loop compensation up to ~100 kHz |
| Slew Rate | 2.9 V/μs (typ, positive); 5.1 V/μs (typ, negative) - handles fast transient signals in motor current sensing |
| Input Resistance | 1012 Ω - preserves signal integrity when buffering piezoelectric sensors or high-Z pH electrodes |
| Supply Current per Amp | 120–280 μA (C-suffix, 25°C) - enables multi-channel analog monitoring in battery-backed systems |
| Common-Mode Range | −11.5 V to +14 V (at ±15 V supplies) - accommodates wide dynamic range inputs in isolated DC-link sensing |
Pinout & Package
TSSOP-14 (PW) package: 5 mm × 6.4 mm body, 0.65 mm pitch, exposed thermal pad (not electrically connected), JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, channel 1 | Amplified output of first op-amp; drives feedback networks or downstream ADC drivers |
| 1IN− | Inverting Input, channel 1 | High-impedance node for configuring inverting gain stages or transimpedance amplifiers |
| 1IN+ | Non-Inverting Input, channel 1 | Reference or sensor signal input; maintains >1012 Ω impedance for minimal loading |
| VCC+ | Power supply positive | Connects to +V rail; decoupling capacitor required within 1 cm for stability |
| 2IN+ | Non-Inverting Input, channel 2 | Independent input for second channel; no crosstalk (120 dB attenuation confirmed) |
| 2IN− | Inverting Input, channel 2 | Configurable for differential or single-ended topologies without interaction with ch1/ch3 |
| 2OUT | Output, channel 2 | Electrically isolated output stage; supports independent load driving up to 40 mA |
| 3OUT | Output, channel 3 | Third independent output; usable for auxiliary functions like reference buffering or fault monitoring |
| 3IN− | Inverting Input, channel 3 | Valid input node; full specification applies across all four channels per datasheet Section 5.12–5.15 |
| 3IN+ | Non-Inverting Input, channel 3 | Matches ch1/ch2 electrical behavior; supports identical gain configurations |
| VCC− | Power supply negative | Connects to −V rail; must be referenced to system ground or isolated return path |
| 4IN+ | Non-Inverting Input, channel 4 | Final channel input; fully characterized for offset, noise, and bandwidth per TL034C/AC specs |
| 4IN− | Inverting Input, channel 4 | Supports active filtering or summing configurations with matched channel performance |
| 4OUT | Output, channel 4 | Enables four independent analog signal paths on one IC - reduces board area vs discrete solutions |
Key Features
| Feature | Design Value |
|---|---|
| On-chip offset trimming | Reduces initial VIO to ≤1.5 mV (TL034AC), cutting calibration overhead in production test |
| FET-input architecture | 1012 Ω input resistance enables direct connection to high-Z sources without guard traces |
| Low power consumption | 120 μA per amplifier at 25°C allows 4-channel operation under 500 μA total - critical for always-on monitoring |
| Enhanced AC performance | 2.9 V/μs slew rate and 1.1 MHz GBW outperform TL064 while maintaining same ICC |
| Quad configuration in TSSOP-14 | Minimizes PCB footprint vs four SOIC-8 op-amps; saves >65% board area in space-constrained inverters |
Applications
| Solar Inverter String Monitoring | AC Motor Drive Current Sensing |
|---|---|
Use Scenario: Measuring DC-link voltage and string-level current in photovoltaic central inverters with isolation barriers. IC Role / Device Role / Timing Role: TL034CPWR buffers isolated sensor outputs and conditions signals for 16-bit sigma-delta ADCs in real-time MPPT control loops. Use Value: 1.5 mV max VIO ensures <0.01% full-scale error at ±10 V input ranges, directly improving energy harvest accuracy. | Use Scenario: Amplifying shunt-resistor voltage drops in three-phase IGBT gate driver feedback paths. IC Role / Device Role / Timing Role: TL034CPWR provides four independent, low-drift amplifiers for simultaneous phase-A/B/C current sensing plus DC bus voltage scaling. Use Value: 120 dB CMRR and 1012 Ω input resistance reject common-mode noise from fast-switching IGBTs, preserving measurement fidelity. |
| Single-Phase Online UPS Regulation | Industrial Process Transducer Interface |
Use Scenario: Closed-loop regulation of output sine-wave amplitude and harmonic content in line-interactive UPS units. IC Role / Device Role / Timing Role: TL034CPWR implements error amplifiers in voltage-controlled oscillator (VCO) and PWM comparator circuits for inverter stage control. Use Value: 1.1 MHz unity-gain bandwidth supports stable loop compensation up to 100 kHz, meeting IEC 62040-3 THD requirements. | Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure, temperature, and flow transducers in factory automation. IC Role / Device Role / Timing Role: TL034CPWR serves as precision I/V converter, filter, and output driver in smart transmitter front-ends. Use Value: Low 2 fA/√Hz input current noise prevents drift in microamp-level transducer signals, extending calibration intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad FET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL074CDR | Higher slew rate (13 V/μs), higher ICC (1.4 mA/amp), no on-chip offset trim (max VIO = 10 mV) | Better for wideband active filters; unsuitable where ultra-low power (<300 μA total) is mandatory | Select TL074CDR only if bandwidth >3 MHz is required and power budget allows ≥5.6 mA total supply current |
| OPA4134UA | Lower VIO (125 μV max), lower noise (8 nV/√Hz), higher ICC (2 mA/amp), SOIC-14 only | Preferred for audio and precision metrology; not drop-in due to different pinout and layout footprint | Choose OPA4134UA when sub-0.1% DC accuracy and audio-grade SNR outweigh cost and power penalties |
Compared with TL034CPWR, TL074CDR trades 10× higher power for 4.5× faster slew rate and wider bandwidth, while OPA4134UA delivers 12× lower offset and 4× lower noise at 17× higher supply current and incompatible packaging - making TL034CPWR optimal for cost-sensitive, low-power industrial signal chains.
Availability
TL034CPWR is available at Aetrix Electronics and suitable for solar inverter string monitoring, AC motor drive current sensing, and single-phase online UPS regulation requiring stable component supply across extended production lifecycles.
Supply support for TL034CPWR 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 over 50 years of op-amp innovation and broad industrial application expertise.
The TL03x family was engineered specifically for low-power, high-input-impedance analog signal conditioning in energy infrastructure and motor control systems - bridging performance gaps between legacy TL06x and premium OPA-series amplifiers.
FAQ
What is the maximum operating temperature range for TL034CPWR?
The TL034CPWR is a C-suffix device characterized for operation from 0°C to 70°C ambient temperature. It meets all electrical specifications across this range per Section 5.3 of the TI SLOS180D datasheet, including input offset voltage, common-mode range, and supply current. Operation outside this range may result in parametric degradation or functional failure.
Does TL034CPWR support single-supply operation?
TL034CPWR is designed for dual-supply operation but can be used with single supplies when proper DC biasing is applied. The datasheet requires input signals to remain within the common-mode range (e.g., −1.5 V to +4 V at ±5 V supplies), necessitating a virtual ground (e.g., TI TLE2426) and output load termination to mid-supply. No internal level-shifting is provided.
What is the input bias current specification for TL034CPWR at 70°C?
Per Section 5.12 of the TL034C datasheet, the input bias current for TL034CPWR is specified as 5–400 pA at 25°C and increases to 50–400 pA at 70°C. This ultra-low bias current enables accurate amplification of signals from high-impedance sources such as piezoelectric sensors or pH electrodes without significant DC error.
How does TL034CPWR differ from TL034AC in terms of offset voltage?
TL034CPWR uses the TL034C grade, with maximum input offset voltage of 4 mV at 25°C (Section 5.12), whereas TL034AC offers tighter 1.5 mV max. Both share identical pinout, package, and AC specs, but TL034AC's on-chip trimming delivers superior DC accuracy for precision measurement applications where calibration headroom is limited.
Is TL034CPWR pin-compatible with TL074 or TL064?
TL034CPWR shares the same 14-pin TSSOP (PW) footprint and pinout as TL074IPWR and TL064IPWR per TI's package drawings, making it a direct PCB replacement. However, electrical differences - including supply current (120 μA vs 1.4 mA), offset voltage (4 mV vs 10 mV), and slew rate (2.9 V/μs vs 13 V/μs) - require verification of loop stability and DC error budgets before substitution.
TL034CPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 5.1V/µs
- Gain Bandwidth Product:
- 1.1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 790 µV
- Current - Supply:
- 870µA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TL034CPWR FAQ
1.How can I place an order for TL034CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL034CPWR 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 TL034CPWR reliable?
The price and inventory of TL034CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034CPWR is usually 5 days.
3.What payment methods are accepted for TL034CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL034CPWR?
TL034CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL034CPWR 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 TL034CPWR?
For technical support, including TL034CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034CPWR requirements.
6.How does Aetrix verify that TL034CPWR is sourced from the original manufacturer or authorized distributors?
All TL034CPWR 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 TL034CPWR meets industry standards.
7.What is the process for return or replacement of TL034CPWR?
All TL034CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TL034CPWR, 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 TL034CPWR part is unused and in its original packaging.
Return procedure for TL034CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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