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Texas Instruments TL034AIN
- Part No.:
- TL034AIN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TL034AIN.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,021
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Product details
Overview
TL034AIN 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 (TL034AI grade), and 1012 Ω input resistance - enabling high-impedance sensor interfacing in solar inverter feedback loops.
For engineers reviewing the TL034AIN datasheet, TL034AIN pinout, TL034AIN application, or TL034AIN equivalent, this page provides verified specifications, validated pin functions for SOIC-14 package, real-world use cases in motor drive current sensing and UPS voltage regulation, and two confirmed alternative parts with documented parameter and temperature-range differences.
Technical Context
The TL034AIN belongs to the enhanced-FET TL03x family, offering improved AC performance over TL06x predecessors without increased power consumption. Its JFET input stage enables ultra-low input bias current (≤200 pA at 25°C) and high common-mode rejection (≥94 dB), critical for precision DC-coupled amplification.
It is fully specified across −40°C to +85°C (I-grade), supports dual-supply operation only, and requires external DC biasing for single-supply use. Input offset is trimmed on-chip, and crosstalk between channels is suppressed to ≥120 dB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - supports standard industrial dual-rail supplies; not rated for single-supply operation. |
| Input Offset Voltage (max) | 1.5 mV at 25°C (TL034AI spec) - enables sub-10-bit accuracy in 12-bit ADC front-ends without trimming. |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for anti-aliasing and loop compensation up to ~100 kHz in motor control applications. |
| Slew Rate (−) | 5.1 V/μs (typ) - ensures faithful reproduction of fast transients in UPS line-sensing circuits. |
| Input Bias Current (max) | 200 pA at 25°C - preserves signal integrity when amplifying from >1 MΩ source impedances (e.g., piezoelectric sensors). |
| Common-Mode Rejection | 94 dB (min) - rejects noise coupled onto differential sensor lines in noisy inverter environments. |
| Supply Current per Amp | 280 μA (max at ±15 V) - allows four-channel amplification within <1.2 mA total, ideal for battery-backed monitoring modules. |
Pinout & Package
TL034AIN is supplied 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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, channel 1 | Amplified output signal for first op-amp; drives feedback networks or next-stage buffers. |
| 1IN− | Inverting Input, channel 1 | High-impedance node for feedback connection or inverted signal path in transimpedance configurations. |
| 1IN+ | Non-Inverting Input, channel 1 | High-Z input for reference or sensor signal; accepts voltages within VICR range (−11.5 V to +14 V @ ±15 V). |
| 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 except via shared supply rails. |
| 2IN− | Inverting Input, channel 2 | Used for differential gain stages or active filtering; shares no internal coupling with channel 1 inputs. |
| 2OUT | Output, channel 2 | Output for second amplifier; crosstalk to other outputs is ≤−120 dB (AVD = 100 dB test condition). |
| 3OUT | Output, channel 3 | Third independent output; layout must avoid ground bounce coupling due to shared VCC− return path. |
| 3IN− | Inverting Input, channel 3 | Accepts inverted signals; input capacitance is 4 pF - limits usable bandwidth with high-source-impedance nodes. |
| 3IN+ | Non-Inverting Input, channel 3 | High-Z input; same CMRR and offset specs as channel 1; suitable for parallel sensor buffering. |
| VCC− | Power supply negative | Negative rail connection; must be low-inductance path to minimize PSRR degradation. |
| 4IN+ | Non-Inverting Input, channel 4 | Final channel input; full specification applies identically - no derating for channel count. |
| 4IN− | Inverting Input, channel 4 | Configurable for summing or difference amplification; offset voltage matches channel 1 within 0.2 mV (typ). |
| 4OUT | Output, channel 4 | Fourth output; all four channels operate simultaneously with no thermal or supply interaction beyond ICC summation. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip offset trimming | Reduces max input offset to 1.5 mV (TL034AI), eliminating need for external nulling circuitry in production designs. |
| FET input stage | Delivers 1012 Ω input resistance and ≤200 pA input bias current - essential for photodiode or thermocouple signal conditioning. |
| Enhanced slew rate | 5.1 V/μs negative slew rate enables accurate amplification of fast PWM edge transitions in motor gate drivers. |
| Quad-channel integration | Four matched amplifiers in one SOIC-14 reduce PCB area by ~60% vs. discrete TL031AIN solutions in multi-loop control systems. |
| Extended temperature grade | Specified from −40°C to +85°C - qualified for deployment in outdoor solar inverters and industrial servo drives without derating. |
Applications
| Solar Inverter String Monitoring | AC Motor Drive Current Sensing |
|---|---|
Use Scenario: Measuring DC-link voltage and string current in central solar inverters using shunt-based sensing and isolation amplifiers. IC Role / Device Role / Timing Role: TL034AIN serves as the front-end signal conditioner for four independent current/voltage feedback paths, providing gain, filtering, and level-shifting prior to ADC sampling. Use Value: Its 1.5 mV max offset and 94 dB CMRR ensure <0.5% measurement error under EMI-heavy inverter switching noise, meeting IEC 62109 safety compliance requirements. | Use Scenario: Closed-loop phase current sensing in three-phase AC induction motor drives with regenerative braking. IC Role / Device Role / Timing Role: TL034AIN configures as two differential amplifiers (for Ia, Ib) and one summing amp (for Ic reconstruction), plus one buffer for reference voltage scaling. Use Value: 5.1 V/μs slew rate preserves fidelity of 20 kHz PWM-modulated current waveforms, enabling precise field-oriented control (FOC) algorithms. |
| Single-Phase Online UPS Regulation | Industrial Sensor Signal Conditioning |
Use Scenario: Real-time monitoring of battery voltage, inverter output voltage, and load current in line-interactive UPS units. IC Role / Device Role / Timing Role: TL034AIN implements four independent analog monitoring channels: battery sense, AC output RMS detection, overload current flag, and thermal foldback reference. Use Value: 120 μA per amplifier supply current extends backup runtime by minimizing auxiliary power draw - critical for maintaining communication during brownouts. | Use Scenario: Amplifying low-level outputs from RTDs, strain gauges, and capacitive pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TL034AIN operates as programmable-gain instrumentation amplifier (using external resistors), cold-junction compensator, and anti-alias filter driver. Use Value: 1012 Ω input resistance prevents loading of high-Z sensor elements, preserving full-scale resolution even with 10 kΩ+ source impedances. |
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 supply current (2.8 mA total), wider offset range (10 mV max), C-grade (0°C to 70°C). | Not qualified for extended temperature industrial use; better suited for audio or lab equipment where speed outweighs power. | Select TL074CDR only if bandwidth >3 MHz is required and ambient temperature stays below 70°C. |
| OPA4134UA | Lower noise (8 nV/√Hz), lower offset (500 μV max), rail-to-rail output, higher supply current (1.3 mA total), same −40°C to +85°C rating. | Superior for audio and precision data acquisition; lacks direct drop-in compatibility due to different pinout and output swing behavior. | Choose OPA4134UA when SNR >100 dB is mandatory and board redesign for pinout is acceptable. |
Compared with TL034AIN, TL074CDR trades guaranteed low-power operation and extended temperature stability for raw speed, while OPA4134UA prioritizes noise and offset performance at the cost of higher quiescent current and non-drop-in packaging - making TL034AIN optimal for space-constrained, thermally demanding, low-power industrial signal chains.
Availability
TL034AIN is available at Aetrix Electronics and suitable for solar inverter monitoring, motor drive current sensing, and online UPS regulation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL034AIN 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 heritage in precision op-amps and industrial-grade signal chain components.
The TL03x family was engineered specifically for low-power, high-input-impedance analog signal conditioning in energy infrastructure and motor control - emphasizing offset stability, supply efficiency, and robustness across −40°C to +85°C.
FAQ
What is the maximum operating temperature range for TL034AIN?
The TL034AIN is rated for operation from −40°C to +85°C, as confirmed by its I-suffix designation and electrical characteristics tables (Sections 5.14–5.15). This extended temperature range qualifies TL034AIN for deployment in outdoor solar inverters, industrial motor drives, and telecom power systems where ambient conditions exceed commercial-grade limits.
Can TL034AIN be used with a single supply?
No - TL034AIN is designed exclusively for dual-supply operation. The datasheet explicitly states it is "designed for use with dual power supplies" and warns that single-supply use requires external DC biasing and virtual-ground generation (e.g., TI TLE2426). Attempting direct single-rail operation violates common-mode input and output swing limits, risking distortion or latch-up.
What is the input offset voltage specification for TL034AIN at 25°C?
Per Section 5.14 of the datasheet, TL034AIN has a maximum input offset voltage of 1.5 mV at 25°C under ±15 V supply conditions. This value reflects the "A" grade (trimmed) variant and is tighter than the untrimmed TL034I (4 mV max), confirming its suitability for precision DC-coupled applications like current-sense amplification.
How many independent amplifiers does TL034AIN contain, and are they matched?
TL034AIN integrates four fully independent operational amplifiers in a single SOIC-14 package. Electrical characteristics (offset, bias current, CMRR, slew rate) are individually specified per channel, and crosstalk attenuation is ≥120 dB - confirming functional independence. Parameter matching across channels is implied by shared process and trim, though no explicit tracking spec is provided.
What package type is TL034AIN supplied in, and is it RoHS compliant?
TL034AIN is supplied in a 14-pin SOIC (D) package (8.65 mm × 6.00 mm), as listed in the Device Information table. Texas Instruments confirms RoHS compliance for all TL03x devices manufactured after 2006; TL034AIN orderable part numbers ending in "N" (e.g., TL034AIN) denote lead-free, RoHS-compliant packaging per TI's packaging standards.
TL034AIN 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TL034AIN FAQ
1.How can I place an order for TL034AIN through Aetrix?
Please submit a Request for Quotation (RFQ) for TL034AIN 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 TL034AIN reliable?
The price and inventory of TL034AIN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034AIN is usually 5 days.
3.What payment methods are accepted for TL034AIN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034AIN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL034AIN?
TL034AIN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL034AIN 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 TL034AIN?
For technical support, including TL034AIN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034AIN requirements.
6.How does Aetrix verify that TL034AIN is sourced from the original manufacturer or authorized distributors?
All TL034AIN 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 TL034AIN meets industry standards.
7.What is the process for return or replacement of TL034AIN?
All TL034AIN units undergo pre-shipment inspection (PSI). If there is an issue with TL034AIN, 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 TL034AIN part is unused and in its original packaging.
Return procedure for TL034AIN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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