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Texas Instruments TL034ACN
- Part No.:
- TL034ACN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TL034ACN.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,337
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Product details
Overview
TL034ACN 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, 0.7 mV typical input offset voltage (25°C), and 1012 Ω input resistance - enabling high-impedance sensor interfacing in solar inverters and motor drive feedback loops.
For engineers reviewing the TL034ACN datasheet, TL034ACN pinout, TL034ACN application, or TL034ACN equivalent, this page provides verified specifications, validated 14-pin PDIP package details, real-world use cases in string inverter voltage sensing and servo control, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The TL034ACN implements enhanced LinCMOS FET-input architecture to achieve micropower operation without sacrificing AC performance versus legacy TL06x amplifiers. Its on-chip offset-voltage trimming ensures 0.7 mV max offset at 25°C and 3.7 mV over 0°C–70°C, while maintaining 2.9 V/μs slew rate and 60° phase margin at unity gain.
Designed explicitly for dual-supply operation, it requires careful common-mode input voltage management (−11.5 V to +14 V at ±15 V supplies) and output swing awareness (±12.5 V min at ±15 V). 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. |
| Input Offset Voltage | 0.7 mV typ (25°C), 3.7 mV max (0°C–70°C) - enables accurate DC-coupled signal amplification in precision feedback paths. |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for anti-aliasing, current-sense amplification, and moderate-speed control loop compensation. |
| Slew Rate | 2.9 V/μs (positive), 5.1 V/μs (negative) - handles fast transients in motor phase current monitoring without distortion. |
| Input Resistance | 1012 Ω - preserves signal integrity when buffering high-impedance sources like piezoelectric sensors or photodiode outputs. |
| Supply Current per Amp | 120–250 μA - allows four-channel operation under 1 mA total, critical for thermally constrained UPS and inverter control boards. |
| Common-Mode Range | −11.5 V to +14 V (at ±15 V) - accommodates wide-swing differential inputs in isolated gate-driver feedback circuits. |
Pinout & Package
TL034ACN is supplied in a 14-pin plastic DIP (PDIP) package measuring 19.3 mm × 9.4 mm, rated for 0°C to 70°C operation (C-suffix). The package features through-hole mounting and industry-standard lead pitch for compatibility with legacy PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, channel 1 | Amplified output of first op-amp; drives external load or next stage with rail-to-rail capability limited by supply rails. |
| 1IN– | Inverting Input, channel 1 | High-impedance node for feedback network connection; sets closed-loop gain with 1IN+. |
| 1IN+ | Non-Inverting Input, channel 1 | High-Z input for reference or sensor signal; common-mode range must stay within specified limits. |
| VCC+ | Power supply positive | Positive supply rail connection; decoupling capacitor required near pin for stability. |
| 2IN+ | Non-Inverting Input, channel 2 | Independent input for second amplifier; electrically isolated from other channels except via shared supply rails. |
| 2IN– | Inverting Input, channel 2 | Feedback node for channel 2; crosstalk attenuation ≥120 dB prevents inter-channel interference. |
| 2OUT | Output, channel 2 | Second independent output; usable for parallel processing or multi-loop control. |
| 3OUT | Output, channel 3 | Third output channel; enables three-phase current sensing or redundant signal paths. |
| 3IN– | Inverting Input, channel 3 | Third amplifier inverting input; shares same electrical characteristics as channels 1 and 2. |
| 3IN+ | Non-Inverting Input, channel 3 | Third amplifier non-inverting input; supports identical configuration flexibility as other channels. |
| VCC– | Power supply negative | Negative supply rail; must be connected to system ground or negative rail with low-impedance path. |
| 4IN+ | Non-Inverting Input, channel 4 | Fourth independent input; enables full quad-channel utilization in multi-sensor systems. |
| 4IN– | Inverting Input, channel 4 | Fourth amplifier inverting input; maintains same offset and noise specs as other channels. |
| 4OUT | Output, channel 4 | Final output channel; supports simultaneous monitoring of four analog signals without multiplexing delay. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip offset trimming | Reduces input offset to 0.7 mV typ (25°C), minimizing DC error in precision integrators and current-sense amplifiers. |
| FET input stage | Delivers 1012 Ω input resistance and 2 fA/√Hz input noise current, preserving signal fidelity from ultra-high-Z sources. |
| Low quiescent current | 120 μA per amplifier enables four-channel operation under 500 μA total, extending battery life in portable test equipment. |
| Enhanced AC performance | 2.9 V/μs slew rate and 1.1 MHz bandwidth exceed TL064 while consuming comparable power - ideal for dynamic control loops. |
| Quad-channel integration | Four matched amplifiers in one 14-pin PDIP reduce board space and component count versus discrete single-amplifier solutions. |
Applications
| Solar String Inverter Voltage Sensing | AC Motor Drive Current Feedback |
|---|---|
|
Use Scenario: Monitoring DC-link voltage across multiple PV strings using resistive dividers before MPPT stage. IC Role / Device Role / Timing Role: Precision buffer and level-shift amplifier for high-impedance divider output feeding ADC. Use Value: 1012 Ω input resistance prevents loading of 1 MΩ+ dividers; 0.7 mV offset ensures <0.01% full-scale error at 1000 V range. |
Use Scenario: Amplifying shunt resistor voltage in three-phase inverter legs for real-time current regulation. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier front-end driving isolation amplifier inputs. Use Value: 2.9 V/μs slew rate captures 20 kHz PWM edge transients; 120 dB crosstalk prevents phase coupling in adjacent channels. |
| Single-Phase Online UPS Regulation | Servo Motor Position Loop Compensation |
|
Use Scenario: Closed-loop voltage regulation of inverter output during battery backup mode with variable load. IC Role / Device Role / Timing Role: Error amplifier in PID compensator network comparing sensed output to reference. Use Value: 1.1 MHz bandwidth supports >10 kHz loop crossover; 60° phase margin ensures stable transient response. |
Use Scenario: Integrating position error in digital servo controllers where analog integrators improve low-frequency torque accuracy. IC Role / Device Role / Timing Role: High-precision integrator core with trimmed offset to minimize drift-induced velocity error. Use Value: 0.04 μV/month long-term drift prevents positional drift accumulation over weeks of continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad FET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL034CN | Higher input offset voltage (0.91 mV typ vs. 0.7 mV), wider temp range (0°C–70°C same, but untrimmed) | Acceptable where <0.2 mV additional offset is tolerable; lower cost for non-critical sensing | Select TL034CN if budget constraints outweigh need for lowest possible DC error in production units. |
| TL074CDR | Higher slew rate (13 V/μs), higher supply current (1.4 mA/amp), no on-chip offset trim (6 mV max) | Better for high-speed AC-coupled applications; unsuitable for precision DC-coupled loops due to offset and drift | Choose TL074CDR only when bandwidth/speed dominates over power and DC accuracy requirements. |
Compared with TL034CN and TL074CDR, TL034ACN uniquely balances micropower consumption (120 μA/amp), low offset (0.7 mV typ), and adequate bandwidth (1.1 MHz) - making it optimal for cost-sensitive, thermally constrained, precision analog front-ends in renewable energy and motion control.
Availability
TL034ACN is available at Aetrix Electronics and suitable for solar inverter voltage monitoring, motor drive current feedback, and UPS regulation requiring stable component supply across extended production cycles.
Supply support for TL034ACN 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 op-amps and industrial-grade signal chain components.
The TL03x family was engineered to upgrade TL06x designs with superior DC accuracy and AC performance at equal power - targeting solar, motor control, and power conversion systems demanding reliability and long-term stability.
FAQ
What is the maximum operating temperature range for TL034ACN?
The TL034ACN is characterized for operation from 0°C to 70°C, as indicated by its 'C' suffix. This commercial temperature grade is validated per TI's SLOS180D datasheet Section 5.3, with all electrical parameters guaranteed across that range - making it suitable for indoor industrial control panels and non-extended-environment power electronics.
Does TL034ACN support single-supply operation?
TL034ACN is designed for dual-supply operation and does not support true single-supply use without external biasing. Per the datasheet Section 3, DC input biasing and a virtual-ground reference (e.g., TI TLE2426) are mandatory to maintain proper common-mode input voltage and output swing - otherwise, clipping or instability occurs.
How does TL034ACN differ from TL034CN in practical design?
TL034ACN features on-chip offset-voltage trimming, yielding 0.7 mV typical input offset voltage versus 0.91 mV for TL034CN. This 0.21 mV improvement directly reduces DC error in precision applications like shunt-based current sensing - especially critical in low-gain, high-resolution measurement paths where offset dominates total error budget.
What is the input capacitance of TL034ACN and why does it matter?
TL034ACN has 4 pF typical input capacitance per input terminal, as specified in Section 5.4 of the datasheet. This low value minimizes phase shift and peaking in high-impedance feedback networks - essential for maintaining stability in transimpedance amplifiers used with photodiodes or capacitive sensors.
Can TL034ACN replace TL064 in existing designs?
Yes - TL034ACN is explicitly positioned as a direct upgrade for TL064, offering improved slew rate (2.9 V/μs vs. 3.5 V/μs typ), lower input offset (0.7 mV vs. 3 mV typ), and identical pinout in PDIP packages. No PCB changes are required, though layout review for improved stability margins is recommended due to higher bandwidth.
TL034ACN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- 580 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TL034ACN FAQ
1.How can I place an order for TL034ACN through Aetrix?
Please submit a Request for Quotation (RFQ) for TL034ACN 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 TL034ACN reliable?
The price and inventory of TL034ACN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034ACN is usually 5 days.
3.What payment methods are accepted for TL034ACN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034ACN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL034ACN?
TL034ACN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL034ACN 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 TL034ACN?
For technical support, including TL034ACN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034ACN requirements.
6.How does Aetrix verify that TL034ACN is sourced from the original manufacturer or authorized distributors?
All TL034ACN 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 TL034ACN meets industry standards.
7.What is the process for return or replacement of TL034ACN?
All TL034ACN units undergo pre-shipment inspection (PSI). If there is an issue with TL034ACN, 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 TL034ACN part is unused and in its original packaging.
Return procedure for TL034ACN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL034ACN Tags
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