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Texas Instruments TL034CNS
- Part No.:
- TL034CNS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TL034CNS.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,700
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Product details
Overview
TL034CNS from Texas Instruments is a quad FET-input operational amplifier optimized for low-power, low-offset precision 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, and 0.91 mV typical input offset voltage at 25°C - enabling high-impedance sensor interfacing in solar inverters and motor drive feedback loops.
For engineers reviewing the TL034CNS datasheet, TL034CNS pinout, TL034CNS application, or TL034CNS equivalent, this page provides verified DC/AC specifications, validated 14-pin SOIC pin functions, real-world use cases in string inverters and servo control, and two confirmed alternative quad FET op-amps with documented parameter trade-offs.
Technical Context
The TL034CNS uses TI's enhanced LinCMOS FET process to achieve higher slew rate (2.9 V/μs typ.) and bandwidth without increasing power consumption versus legacy TL06x amplifiers. Its 10¹² Ω input resistance and 4 pF input capacitance support stable operation with high-Z sources like piezoelectric sensors or photodiode transimpedance stages.
Designed for dual-supply operation, it requires attention to common-mode input range (–11.5 V to +14 V at ±15 V supplies) and output swing limits (±12.5 V min. 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 rails; not rated for single-supply operation without biasing. |
| Input Offset Voltage | 0.91 mV (typ.) at 25°C - enables accurate DC-coupled amplification of mV-level sensor outputs. |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for anti-aliasing, loop compensation, and medium-speed signal conditioning up to ~100 kHz closed-loop. |
| Slew Rate | 2.9 V/μs (positive), 5.1 V/μs (negative) - supports clean step response in feedback networks with moderate gain. |
| Input Resistance | 10¹² Ω - minimizes loading on high-impedance sources such as pH electrodes or capacitive sensors. |
| Supply Current per Amp | 120 μA (min), 500 μA (max) - enables battery-powered or energy-harvesting designs where quiescent power is critical. |
| Common-Mode Range | –11.5 V to +14 V (at ±15 V) - defines usable input voltage window before clipping or phase reversal. |
Pinout & Package
TL034CNS is supplied in a 14-pin SOIC (D package), 8.65 mm × 6 mm body size, with gull-wing leads and standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier 1 output - drives feedback network or next-stage load; rail-to-rail swing not supported. |
| 1IN– | Input | Inverting input of channel 1 - connects to feedback resistor or summing junction. |
| 1IN+ | Input | Non-inverting input of channel 1 - accepts reference, sensor, or buffered signal. |
| VCC+ | Power | Positive supply rail - must be decoupled locally with 0.1 μF ceramic capacitor. |
| 2IN+ | Input | Non-inverting input of channel 2 - electrically isolated from other channels; no crosstalk below –120 dB. |
| 2IN– | Input | Inverting input of channel 2 - used for differential pair or independent gain stage. |
| 2OUT | Output | Amplifier 2 output - shares same thermal and supply environment as other channels. |
| 3OUT | Output | Amplifier 3 output - fully specified performance across all four channels per datasheet Section 5.12–5.13. |
| 3IN– | Input | Inverting input of channel 3 - identical electrical specs to pins 1IN– and 2IN–. |
| 3IN+ | Input | Non-inverting input of channel 3 - supports independent configuration per channel. |
| VCC– | Power | Negative supply rail - requires symmetric decoupling and low-impedance ground return path. |
| 4IN+ | Input | Non-inverting input of channel 4 - completes quad-channel set; all inputs share same CMRR (70–94 dB). |
| 4IN– | Input | Inverting input of channel 4 - validated for simultaneous operation with full AC/DC specs. |
| 4OUT | Output | Amplifier 4 output - matches channel 1–3 output swing and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip offset trimming | Reduces initial VIO to 0.91 mV (typ.), lowering calibration burden in precision analog front-ends. |
| FET input architecture | Delivers 10¹² Ω input resistance and sub-100 pA bias current - essential for electrometer-grade sensing. |
| Low power consumption | 120 μA per amplifier enables 4-channel signal conditioning in <1 mA total supply budget. |
| Enhanced AC performance | 2.9 V/μs slew rate and 1.1 MHz bandwidth improve transient response over TL064 without power penalty. |
| Quad-channel integration | Four matched amplifiers in one SOIC-14 reduce PCB area and inter-channel mismatch vs discrete solutions. |
Applications
| Solar String Inverter Monitoring | AC Servo Drive Current Sensing |
|---|---|
Use Scenario: Measuring DC-link voltage and string current in photovoltaic combiner boxes with isolation barriers. IC Role / Device Role / Timing Role: Precision buffer and level-shifting amplifier for isolated shunt-based current measurement. Use Value: 0.91 mV VIO and 120 μA quiescent current enable accurate, low-drift readings while minimizing self-heating in enclosed enclosures. | Use Scenario: Closed-loop phase current feedback in three-phase IGBT gate driver stages. IC Role / Device Role / Timing Role: High-input-impedance differential amplifier for shunt resistor signals prior to ADC sampling. Use Value: 10¹² Ω input resistance prevents loading of low-value shunts; 1.1 MHz bandwidth supports >20 kHz PWM harmonics rejection. |
| Single-Phase Online UPS Control | Industrial Temperature Transmitter |
Use Scenario: Battery voltage monitoring and inverter output waveform shaping in line-interactive UPS units. IC Role / Device Role / Timing Role: Error amplifier in voltage regulation loop and sine-wave synthesis filter stage. Use Value: Matched quad topology ensures consistent loop gain across multiple control paths; ±15 V rating supports direct connection to UPS DC bus. | Use Scenario: Signal conditioning of RTD or thermocouple outputs in 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Low-power instrumentation amplifier front-end with cold-junction compensation. Use Value: Sub-100 pA input bias current avoids voltage drop errors across high-resistance RTD elements; 0°C to 70°C C-suffix rating matches industrial ambient requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad FET operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL064CDR | Higher input offset (3 mV typ.), lower slew rate (0.75 V/μs), 200 μA supply current - legacy TL06x family baseline. | Acceptable where precision and speed are secondary to cost and legacy design reuse. | Choose TL064CDR only if existing layout accommodates same SOIC-14 footprint and system tolerances allow higher VIO and slower response. |
| TL074CDR | Lower input offset (1.5 mV typ.), higher slew rate (13 V/μs), 1.4 mA supply current - improved AC performance at 7× higher power. | Better suited for audio or wideband signal paths where speed outweighs power constraints. | Select TL074CDR when bandwidth >3 MHz or slew rate >10 V/μs is required, and thermal/power budget permits higher ICC. |
Compared with TL064CDR, TL034CNS offers tighter offset and faster response at lower power; versus TL074CDR, it trades speed and noise for micropower operation - making TL034CNS optimal for battery-backed or thermally constrained industrial sensing nodes.
Availability
TL034CNS is available at Aetrix Electronics and suitable for solar energy monitoring, motor drive feedback, and single-phase UPS control requiring stable component supply across extended production lifecycles.
Supply support for TL034CNS 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, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.
The TL03x family was engineered to upgrade TL06x designs with better DC accuracy and AC performance at equal power - targeting precision analog signal chains in energy infrastructure and motion control.
FAQ
What is the maximum operating temperature range for the TL034CNS?
The TL034CNS is characterized for operation from 0°C to 70°C (C-suffix grade). It is not rated for extended industrial temperatures (–40°C to 85°C); for that range, the TL034INS variant must be selected. Thermal derating applies above 70°C, and absolute maximum junction temperature is 150°C per datasheet Section 5.1.
Can the TL034CNS operate from a single supply?
The TL034CNS is designed for dual-supply operation and does not support true single-supply functionality. When used with a single rail, external DC biasing of inputs and outputs is mandatory, and loads must reference a virtual ground (e.g., TI TLE2426). Common-mode input range and output swing become asymmetric and severely limited without proper biasing.
What is the input offset voltage specification for TL034CNS at full temperature range?
Per datasheet Section 5.12, the TL034CNS has a maximum input offset voltage of 8.2 mV over the full 0°C to 70°C operating range. At 25°C, the typical value is 0.91 mV, with a maximum of 6 mV. The temperature coefficient is 11.6 μV/°C, contributing to drift within the full range.
Does TL034CNS support rail-to-rail input or output?
No, TL034CNS does not support rail-to-rail input or output. Its common-mode input voltage range is limited to –11.5 V to +14 V (at ±15 V supplies), and output swing is typically ±12.5 V into 10 kΩ. Input common-mode range excludes the supply rails by ≥1.5 V, and output cannot reach within ~2.5 V of either rail under load.
How many amplifiers are integrated in the TL034CNS and how are they isolated?
The TL034CNS integrates four independent FET-input operational amplifiers in a single SOIC-14 package. Channel-to-channel crosstalk is specified at –120 dB (VO1/VO2 attenuation), confirming effective isolation. Each amplifier shares the same VCC+ and VCC– pins but maintains separate input and output terminals with matched AC/DC parameters per channel.
TL034CNS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- 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:
- 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-SO
TL034CNS FAQ
1.How can I place an order for TL034CNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TL034CNS 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 TL034CNS reliable?
The price and inventory of TL034CNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034CNS is usually 5 days.
3.What payment methods are accepted for TL034CNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034CNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL034CNS?
TL034CNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL034CNS 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 TL034CNS?
For technical support, including TL034CNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034CNS requirements.
6.How does Aetrix verify that TL034CNS is sourced from the original manufacturer or authorized distributors?
All TL034CNS 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 TL034CNS meets industry standards.
7.What is the process for return or replacement of TL034CNS?
All TL034CNS units undergo pre-shipment inspection (PSI). If there is an issue with TL034CNS, 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 TL034CNS part is unused and in its original packaging.
Return procedure for TL034CNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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