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Texas Instruments TL034CNSR
- Part No.:
- TL034CNSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TL034CNSR.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,876
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Product details
Overview
TL034CNSR 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, 0.91 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 TL034CNSR datasheet, TL034CNSR pinout, TL034CNSR application, or TL034CNSR equivalent, this page provides verified specifications, validated SOIC-14 pin functions, real-world use cases in string inverter voltage sensing and servo control, and two confirmed alternative parts with documented performance trade-offs.
Technical Context
The TL034CNSR implements enhanced JFET-input stages on TI's improved FET process, achieving higher slew rate (2.0–2.9 V/μs) and bandwidth without increasing quiescent current versus TL064. Its input stage supports common-mode voltages from −11.5 V to +14 V at ±15 V supplies, requiring external DC biasing for single-supply use.
Designed for dual-supply operation, the device features on-chip offset-voltage trimming (C-suffix grade), 120 dB crosstalk attenuation between channels, and guaranteed performance across 0°C to 70°C - distinguishing it from wider-temp I-suffix variants and untrimmed TL06x predecessors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - supports standard dual-rail industrial power domains without level-shifting |
| Input Offset Voltage | 0.91 mV typ (25°C), 8.2 mV max (0°C to 70°C) - enables accurate DC-coupled amplification of mV-level sensor outputs |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for anti-aliasing and closed-loop control up to ~100 kHz with phase margin ≥60° |
| Slew Rate | 2.0 V/μs (min), 2.9 V/μs (typ) - handles fast transients in motor current sensing without distortion |
| Input Resistance | 1012 Ω - preserves signal integrity when buffering high-impedance piezoelectric or photodiode sources |
| Supply Current per Amp | 120 μA min, 500 μA max (25°C) - enables multi-channel analog front-ends in battery-backed or energy-harvesting systems |
| Common-Mode Range | −11.5 V to +14 V at ±15 V - allows direct connection to mid-rail referenced signals in ±15 V systems |
Pinout & Package
TL034CNSR is housed in a 14-pin SOIC (D package) measuring 8.65 mm × 6.00 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch - compatible with automated SMT assembly and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, channel 1 | Amplified output of first op-amp; drives feedback networks or ADC inputs directly |
| 1IN− | Inverting Input, channel 1 | High-impedance node for precision feedback configuration (e.g., transimpedance, difference amp) |
| 1IN+ | Non-Inverting Input, channel 1 | High-Z input for reference or sensor signal; sensitive to EMI without proper guarding |
| VCC+ | Power supply positive | Connects to +V rail; requires local 0.1 μF ceramic decoupling within 5 mm |
| 2IN+ | Non-Inverting Input, channel 2 | Independent input for second channel; no internal coupling to channel 1 |
| 2IN− | Inverting Input, channel 2 | Used for differential gain stages or independent signal paths in multi-sensor systems |
| 2OUT | Output, channel 2 | Output isolated from channel 1 by ≥120 dB crosstalk - suitable for simultaneous analog processing |
| 3OUT | Output, channel 3 | Third independent output; shares same die thermal environment as other channels |
| 3IN− | Inverting Input, channel 3 | Valid for active filter topologies; input capacitance (4 pF) affects high-frequency stability |
| 3IN+ | Non-Inverting Input, channel 3 | Accepts DC-biased AC signals; common-mode range must be observed to avoid clipping |
| VCC− | Power supply negative | Connects to −V rail; return path for all four amplifiers' quiescent current |
| 4IN+ | Non-Inverting Input, channel 4 | Enables four-channel signal conditioning on single IC - reduces board area vs discrete solutions |
| 4IN− | Inverting Input, channel 4 | Supports matched resistor networks for precision instrumentation amps (e.g., with external gain resistors) |
| 4OUT | Output, channel 4 | Final channel output; exhibits same DC accuracy and AC response as other channels |
Key Features
| Feature | Design Value |
|---|---|
| FET input architecture | 1012 Ω input resistance enables direct interface with >1 MΩ source impedances without loading error |
| On-chip offset trimming | Reduces initial VIO to 0.91 mV typ - cuts calibration time in production test for voltage monitoring circuits |
| Low quiescent current | 120 μA per amplifier supports always-on monitoring in UPS and solar string controllers with minimal self-heating |
| 120 dB inter-channel crosstalk | Prevents signal leakage between channels in multi-loop motor control - avoids instability in cascaded feedback |
| Guaranteed operation at ±5 V | Allows use in low-voltage industrial PLC I/O modules without auxiliary ±15 V rails |
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: Quad amplifier buffers and scales high-impedance divider outputs for simultaneous ADC sampling. Use Value: 1012 Ω input resistance prevents divider ratio drift; 0.91 mV VIO ensures <±0.1% full-scale error in 1000 V measurement ranges. |
Use Scenario: Isolating and conditioning shunt-resistor voltage drops in three-phase inverter legs. IC Role / Device Role / Timing Role: Four independent amplifiers condition phase A/B/C and neutral current signals with matched gain. Use Value: 120 dB crosstalk prevents cross-phase interference during PWM switching; 2.9 V/μs slew rate captures 10 kHz current harmonics. |
| Single-Phase Online UPS Regulation | Servo Drive Position Loop Compensation |
|
Use Scenario: Real-time comparison of battery voltage, inverter output, and grid sync signals for transfer logic. IC Role / Device Role / Timing Role: Precision comparator front-end and error amplifier in voltage regulation loop. Use Value: ±15 V supply tolerance and −11.5 V to +14 V common-mode range allow direct connection to unbuffered bus rails. |
Use Scenario: Implementing PID compensation networks for position feedback in industrial servo amplifiers. IC Role / Device Role / Timing Role: Dual-op-amp configuration forms active integrator and lead-lag network in analog control path. Use Value: 1.1 MHz bandwidth supports >100 kHz loop closure; low 115 nV/√Hz noise maintains encoder resolution at low speeds. |
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 (3 mV typ), lower slew rate (0.75 V/μs), 2× lower supply current (600 μA total) | Acceptable where DC accuracy <±5 mV and bandwidth <100 kHz suffice - e.g., non-critical signal buffering | Choose TL064CDR only if cost sensitivity outweighs need for trimmed offset and faster transient response. |
| TL074CDR | Lower input offset (3 mV typ), higher slew rate (13 V/μs), 3× higher supply current (1.4 mA total) | Better for wideband audio or fast control loops but increases thermal load in space-constrained enclosures | Choose TL074CDR when bandwidth >3 MHz and slew >10 V/μs are required - not for low-power designs. |
Compared with TL034CNSR, TL064CDR trades offset accuracy and speed for ultra-low power, while TL074CDR sacrifices efficiency for bandwidth - making TL034CNSR the balanced choice for precision, low-power industrial signal chains.
Availability
TL034CNSR 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 lifecycles.
Supply support for TL034CNSR 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 designs with tighter DC specs and improved AC performance at identical power levels - targeting industrial automation, renewable energy, and motor control applications.
FAQ
What is the maximum operating temperature range for TL034CNSR?
The TL034CNSR is characterized for operation from 0°C to 70°C (C-suffix grade). It meets all electrical specifications across this full industrial temperature range, including input offset voltage ≤8.2 mV and supply current ≤500 μA per amplifier at 70°C. Operation outside this range may result in parametric degradation or functional failure.
Can TL034CNSR operate from a single 12-V supply?
TL034CNSR is designed for dual-supply operation and does not support true single-supply use without external biasing. To run from +12 V and GND, a virtual ground (e.g., TI TLE2426) must be generated at 6 V, with inputs referenced to that node and outputs loaded to the same virtual ground - otherwise, common-mode and output swing limits will be violated.
How does TL034CNSR differ from TL034ACNSR?
TL034CNSR has typical input offset voltage of 0.91 mV (25°C), while TL034ACNSR improves to 0.70 mV (25°C) due to tighter factory trimming. The 'A' variant also reduces max offset to 5.7 mV over 0°C–70°C versus 8.2 mV for TL034CNSR - critical for high-accuracy voltage monitoring where calibration intervals exceed 1 year.
Is TL034CNSR pin-compatible with TL064CDR?
Yes, TL034CNSR and TL064CDR share identical SOIC-14 pinout and footprint (8.65 mm × 6.00 mm), allowing direct PCB replacement. However, TL034CNSR draws less current (120–500 μA/amp vs. 600 μA total), delivers higher slew rate (2.0–2.9 V/μs vs. 0.75 V/μs), and achieves lower offset - requiring verification of loop stability and noise margins in legacy designs.
What decoupling is recommended for TL034CNSR?
Each VCC+ and VCC− pin of TL034CNSR requires a 0.1 μF X7R ceramic capacitor placed ≤5 mm from the pin, with short, low-inductance traces to ground. For systems with shared supply rails, add a 10 μF tantalum or aluminum electrolytic capacitor per rail near the IC to suppress low-frequency ripple and prevent oscillation under dynamic load conditions.
TL034CNSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-SO
TL034CNSR FAQ
1.How can I place an order for TL034CNSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL034CNSR 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 TL034CNSR reliable?
The price and inventory of TL034CNSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034CNSR is usually 5 days.
3.What payment methods are accepted for TL034CNSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034CNSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL034CNSR?
TL034CNSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL034CNSR 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 TL034CNSR?
For technical support, including TL034CNSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034CNSR requirements.
6.How does Aetrix verify that TL034CNSR is sourced from the original manufacturer or authorized distributors?
All TL034CNSR 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 TL034CNSR meets industry standards.
7.What is the process for return or replacement of TL034CNSR?
All TL034CNSR units undergo pre-shipment inspection (PSI). If there is an issue with TL034CNSR, 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 TL034CNSR part is unused and in its original packaging.
Return procedure for TL034CNSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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