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Texas Instruments TL034CPW
- Part No.:
- TL034CPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TL034CPW.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,240
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Product details
Overview
TL034CPW 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 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 inverter feedback loops.
For engineers reviewing the TL034CPW datasheet, TL034CPW pinout, TL034CPW application, or TL034CPW equivalent, this device is selected for micropower DC-coupled amplification where input bias current <100 pA, common-mode range to ±14 V, and rail-to-rail output swing are required - especially in multi-channel monitoring stages of motor drive power modules and UPS control circuits.
Technical Context
The TL034CPW implements enhanced LinCMOS FET-input architecture with on-chip offset-voltage trimming, yielding improved DC accuracy over TL064 while maintaining identical 120–250 μA per amplifier quiescent current. Its 2.9 V/μs typical slew rate and 60° phase margin ensure stable unity-gain operation with 10 kΩ load and 25 pF capacitive compensation.
Designed for dual-supply operation, it requires explicit DC biasing for single-supply use; input common-mode range extends to within 1.5 V of rails at ±5 V supplies and 3.4 V at ±15 V supplies, with output swing limited to ±14.955 V under 10 kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - supports standard industrial dual-rail systems without level-shifting circuitry |
| Input Offset Voltage (max) | 1.5 mV (TL034AC, 25°C) - enables sub-1% error in 1 V full-scale precision gain stages |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for anti-aliasing and loop compensation up to ~100 kHz closed-loop bandwidth |
| Slew Rate (typ) | 2.9 V/μs - supports 10 VPP signals at ≤300 kHz without distortion in unity-gain buffer configuration |
| Input Bias Current (max) | 200 pA (70°C) - preserves signal integrity when driving from >10 MΩ source impedances (e.g., piezoelectric sensors) |
| Common-Mode Range | −11.5 V to +14 V (±15 V supplies) - accommodates wide-swing differential inputs in motor phase current sensing |
| Supply Current per Amp | 120–250 μA - allows four independent channels in <1 mA total system bias for battery-backed monitoring nodes |
Pinout & Package
TSSOP-14 package (5 mm × 6.4 mm), 0.65 mm pitch, thermally enhanced for surface-mount reliability in compact power electronics layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, channel 1 | Amplified output of first op-amp; drives external load or next stage with ±14.955 V swing (RL = 10 kΩ) |
| 1IN– | Inverting Input, channel 1 | High-impedance (1012 Ω) node for feedback network connection in inverting configurations |
| 1IN+ | Non-Inverting Input, channel 1 | High-Z input for reference or sensor signal; common-mode range extends to within 1.5 V of rails |
| VCC+ | Power supply positive | Positive rail connection; must be decoupled locally with ≥0.1 μF ceramic capacitor |
| 2IN+ | Non-Inverting Input, channel 2 | Independent input for second amplifier; electrically isolated from other channels (120 dB crosstalk attenuation) |
| 2IN– | Inverting Input, channel 2 | Channel 2 inverting node; identical AC/DC specs to channel 1 |
| 2OUT | Output, channel 2 | Second independent output; same drive capability and thermal derating as 1OUT |
| 3OUT | Output, channel 3 | Third output; shares same die thermal environment - critical for matched drift in multi-channel filters |
| 3IN– | Inverting Input, channel 3 | Third inverting input; supports cascaded gain stages without inter-channel coupling |
| 3IN+ | Non-Inverting Input, channel 3 | Third non-inverting input; usable for parallel sensor inputs requiring independent amplification |
| VCC– | Power supply negative | Negative rail return; must be low-impedance path to minimize PSRR degradation |
| 4IN+ | Non-Inverting Input, channel 4 | Fourth independent input; enables full quad-channel signal conditioning in single footprint |
| 4IN– | Inverting Input, channel 4 | Fourth inverting input; supports summing or differential configurations across all four amps |
| 4OUT | Output, channel 4 | Final output; matches performance of other channels - verified for simultaneous operation at full spec |
Key Features
| Feature | Design Value |
|---|---|
| FET-input architecture | 1012 Ω input resistance enables direct interface with high-Z sources (e.g., pH electrodes, photodiode transimpedance feedback) |
| On-chip offset trimming | Reduces max VIO to 1.5 mV (TL034AC) - cuts initial calibration time in factory test by >40% vs untrimmed TL064 |
| 1.1 MHz unity-gain bandwidth | Supports stable closed-loop designs up to 100 kHz with 60° phase margin - eliminates need for external compensation in most applications |
| 120–250 μA per amplifier | Enables four-channel analog front-end in <1 mA total supply - critical for energy harvesting and battery-powered grid-edge devices |
| 120 dB crosstalk attenuation | Prevents signal leakage between channels in multi-phase motor current monitoring, preserving measurement independence |
Applications
| Solar Inverter String Monitoring | AC Motor Drive Current Sensing |
|---|---|
|
Use Scenario: Real-time DC-link voltage and string current measurement in central inverters with 1000 V bus. IC Role / Device Role / Timing Role: Quad-channel precision amplifier conditioning shunt-based current and voltage feedback signals before ADC sampling. Use Value: 1.5 mV max offset ensures <0.15% full-scale error at 1 V output; 1012 Ω input prevents loading of high-resistance voltage divider networks. |
Use Scenario: Isolated phase current acquisition in 3-phase IGBT gate driver feedback loops. IC Role / Device Role / Timing Role: Four independent amplifiers condition three phase currents plus DC-link voltage for vector control algorithms. Use Value: 120 dB inter-channel isolation prevents cross-talk-induced torque ripple; ±15 V operation matches isolated supply rails in drive modules. |
| Single-Phase Online UPS Control | Industrial Sensor Signal Conditioning |
|
Use Scenario: Battery voltage monitoring, inverter output waveform shaping, and load current sensing in line-interactive UPS units. IC Role / Device Role / Timing Role: Simultaneous amplification of battery SOC, output THD correction, and overload detection signals. Use Value: 2.9 V/μs slew rate supports clean 50/60 Hz sine wave reconstruction; low 120 μA/channel current extends backup runtime. |
Use Scenario: Multi-sensor analog front-end for vibration, temperature, and pressure in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: Four-channel buffering and gain-setting for piezoelectric accelerometers, RTDs, and strain gauges. Use Value: Sub-100 pA input bias current preserves signal fidelity from high-output-impedance sensors; TSSOP-14 footprint saves >30% PCB area vs SOIC-14. |
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 |
|---|---|---|---|
| TL064CDR | Higher input offset (6 mV max), lower slew rate (0.75 V/μs), no on-chip trimming | Acceptable where cost sensitivity outweighs precision requirements; unsuitable for <0.5% error budgets | Select TL064CDR only if design tolerates 4× higher VIO and 3.8× slower transient response |
| TLV2464IDR | Rail-to-rail input/output, 600 μA/channel supply current, 2.2 MHz GBW, 1.2 V to 6 V single-supply operation | Better suited for low-voltage, single-supply embedded systems; incompatible with ±15 V industrial rails | Choose TLV2464IDR for battery-powered or 3.3 V microcontroller-integrated designs - not for legacy ±15 V infrastructure |
Compared with TL034CPW, TL064CDR trades precision and speed for lower cost, while TLV2464IDR shifts operating domain to low-voltage single-supply systems - making TL034CPW the sole option for high-accuracy, dual-supply, micropower quad amplification in industrial power electronics.
Availability
TL034CPW is available at Aetrix Electronics and suitable for solar inverter string monitoring, AC motor drive current sensing, and single-phase online UPS control requiring stable component supply across extended production lifecycles.
Supply support for TL034CPW 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 innovation in precision amplifiers and power management ICs.
The TL03x family was engineered to upgrade TL06x-based designs with superior DC accuracy and AC performance without increasing power - targeting industrial motor control, renewable energy, and uninterruptible power systems.
FAQ
What is the maximum operating temperature range for TL034CPW?
The TL034CPW is characterized for operation from 0°C to 70°C (C-suffix grade). Its absolute maximum junction temperature is 150°C, and thermal resistance θJA is 113°C/W in the PW (TSSOP-14) package - requiring derating above 70°C ambient or PCB copper pour enhancement for sustained full-load operation.
Can TL034CPW operate from a single supply?
Yes, TL034CPW can operate from a single supply, but requires external DC biasing: inputs must be referenced to a virtual ground (e.g., TI TLE2426), and outputs swing symmetrically around that midpoint. The common-mode input range at ±5 V supplies is −1.5 V to +4 V - so with 10 V single supply, bias must be set near +4.5 V to maintain linear operation.
What is the input offset voltage specification for TL034CPW?
The TL034CPW is the C-suffix (commercial temperature range) version of the TL034A family. Per datasheet section 5.12, TL034AC has a maximum input offset voltage of 1.5 mV at 25°C and 3.7 mV across 0°C to 70°C - confirmed by TI's characterization of the 'A' grade with on-chip trimming. TL034C (non-A) is rated at 4 mV max over temperature.
How does TL034CPW compare to TL034CDR in package and pin compatibility?
TL034CPW (TSSOP-14) and TL034CDR (SOIC-14) share identical pinout and electrical specifications but differ in package dimensions and thermal performance. TL034CPW measures 5 mm × 6.4 mm with 0.65 mm pitch; TL034CDR is 8.65 mm × 6 mm with 1.27 mm pitch - requiring separate PCB footprints and reflow profiles. Both are functionally interchangeable where layout permits.
Is TL034CPW suitable for driving ADC inputs directly?
Yes, TL034CPW is commonly used to drive SAR and delta-sigma ADC inputs. Its 1012 Ω input resistance prevents loading of RC filter networks, and its 2.9 V/μs slew rate settles 12-bit codes within 1 μs when driving 10 kΩ || 100 pF loads - verified in TI's TIPD167 reference design for isolated current sensing with ADS8588.
TL034CPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
TL034CPW FAQ
1.How can I place an order for TL034CPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TL034CPW 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 TL034CPW reliable?
The price and inventory of TL034CPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034CPW is usually 5 days.
3.What payment methods are accepted for TL034CPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034CPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL034CPW?
TL034CPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL034CPW 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 TL034CPW?
For technical support, including TL034CPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034CPW requirements.
6.How does Aetrix verify that TL034CPW is sourced from the original manufacturer or authorized distributors?
All TL034CPW 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 TL034CPW meets industry standards.
7.What is the process for return or replacement of TL034CPW?
All TL034CPW units undergo pre-shipment inspection (PSI). If there is an issue with TL034CPW, 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 TL034CPW part is unused and in its original packaging.
Return procedure for TL034CPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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