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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Texas Instruments TL034AIDR

Name: TL034AIDR
Brand: Texas Instruments
SKU: TL034AIDR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL034AIDR

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TL034AIDR.pdf

Description:: IC OPAMP JFET 4 CIRCUIT 14SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TL034AIDR 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 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 inverters and motor drive feedback loops.

For engineers reviewing the TL034AIDR datasheet, TL034AIDR pinout, TL034AIDR application, or TL034AIDR equivalent, this page provides verified DC/AC specifications, SOIC-14 package details, channel-isolated performance data, and direct alternatives for micropower FET op-amp replacement in dual-supply analog front-ends.

Technical Context

The TL034AIDR implements enhanced LinCMOS FET-input architecture with on-chip offset-voltage trimming, achieving tighter DC accuracy than TL064 while maintaining identical 120 μA/amplifier quiescent current. Its 2.9 V/μs typical slew rate and 60° phase margin support stable unity-gain operation with 10 kΩ/25 pF loads.

Designed for dual-supply use, 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 operation demands external DC biasing and virtual-ground referencing via devices like TLE2426.

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	0.7 mV typ / 1.5 mV max (25°C, TL034AI) - enables sub-mV DC-coupled error amplification
Unity-Gain Bandwidth	1.1 MHz - sufficient for 50–60 Hz harmonic filtering and medium-speed control loop compensation
Slew Rate	2.9 V/μs (positive), 5.1 V/μs (negative) - handles fast transient recovery in overcurrent protection circuits
Input Resistance	10¹² Ω - preserves signal integrity from high-Z sources like piezoelectric sensors or pH electrodes
Supply Current per Amp	120 μA (typ) - allows four-channel amplification within 500 μA total budget for battery-backed monitoring
Common-Mode Range	–11.5 V to +14 V (at ±15 V) - accommodates rail-to-rail input signals in isolated gate-driver feedback paths

Pinout & Package

TL034AIDR is housed in a 14-pin SOIC (D) package measuring 8.65 mm × 6 mm, optimized for automated assembly and thermal dissipation (θ_JA = 86 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
1OUT	Output	Amplifier 1 output - drives feedback networks or ADC input buffers
1IN–	Input	Inverting input of channel 1 - connects to current-sense resistor or error-summing node
1IN+	Input	Non-inverting input of channel 1 - accepts reference voltage or sensor signal
VCC+	Power	Positive supply rail - must be decoupled with ≥0.1 μF ceramic near pin 4
2IN+	Input	Non-inverting input of channel 2 - used for independent signal path or comparator hysteresis
2IN–	Input	Inverting input of channel 2 - interfaces with differential transducer outputs
2OUT	Output	Amplifier 2 output - feeds isolation amplifier or analog multiplexer
3OUT	Output	Amplifier 3 output - supports redundant sensing or multi-loop control
3IN–	Input	Inverting input of channel 3 - ties to mid-rail bias for single-supply configurations
3IN+	Input	Non-inverting input of channel 3 - receives temperature-compensated reference
VCC–	Power	Negative supply rail - shared return for all four amplifiers
4IN+	Input	Non-inverting input of channel 4 - routes auxiliary system monitor signal
4IN–	Input	Inverting input of channel 4 - connects to fault-detection threshold network
4OUT	Output	Amplifier 4 output - drives LED driver or latch-enable logic

Key Features

Feature	Design Value
On-chip offset trimming	Reduces initial V_IO to ≤1.5 mV (TL034AI), cutting calibration time in production test
FET input stage	10¹² Ω input resistance enables direct connection to >1 MΩ source impedances without gain error
Low power consumption	120 μA per amplifier allows full quad operation under 500 μA - critical for thermally constrained enclosures
High CMRR & PSRR	94 dB CMRR and 140 dB PSRR suppress noise coupling in noisy motor-drive environments
Stable unity-gain operation	60° phase margin ensures robustness with capacitive loads up to 25 pF without external compensation

Applications

Solar Inverter String Monitoring	AC Motor Drive Current Sensing
Use Scenario: Real-time DC string voltage and leakage current measurement in photovoltaic combiner boxes. IC Role / Device Role / Timing Role: Quad amplifier configures two channels as precision difference amplifiers for shunt-based current sensing and two as buffered references for ADC input scaling. Use Value: 1.5 mV max V_IO ensures <0.01% full-scale error in 100 A current measurement with 500 μΩ shunt, extending inverter MTBF.	Use Scenario: Isolated phase-current feedback in variable-frequency drives for induction motors. IC Role / Device Role / Timing Role: Amplifies isolated current transformer outputs with rail-to-rail common-mode rejection before sigma-delta ADC sampling. Use Value: 10¹² Ω input resistance prevents CT secondary loading, preserving phase accuracy critical for field-oriented control.
Single-Phase Online UPS Regulation	Industrial Temperature Transmitter
Use Scenario: Voltage regulation loop error amplification and battery charge control in line-interactive UPS units. IC Role / Device Role / Timing Role: One amplifier serves as error comparator between AC input and regulated DC bus; others condition battery voltage/temperature signals. Use Value: 1.1 MHz bandwidth supports 20 kHz PWM switching harmonics suppression, improving THD below 3%.	Use Scenario: 4–20 mA loop-powered transmitter for RTD or thermocouple inputs in hazardous-area process instrumentation. IC Role / Device Role / Timing Role: Configured as constant-current source, linearizer, and output buffer within 3.3 V/5 V microcontroller interface. Use Value: 120 μA per amplifier enables full signal chain operation within 4 mA loop budget, eliminating external LDO.

Solar Inverter String Monitoring

AC Motor Drive Current Sensing

Use Scenario: Real-time DC string voltage and leakage current measurement in photovoltaic combiner boxes.

IC Role / Device Role / Timing Role: Quad amplifier configures two channels as precision difference amplifiers for shunt-based current sensing and two as buffered references for ADC input scaling.

Use Value: 1.5 mV max V_IO ensures <0.01% full-scale error in 100 A current measurement with 500 μΩ shunt, extending inverter MTBF.

Use Scenario: Isolated phase-current feedback in variable-frequency drives for induction motors.

IC Role / Device Role / Timing Role: Amplifies isolated current transformer outputs with rail-to-rail common-mode rejection before sigma-delta ADC sampling.

Use Value: 10¹² Ω input resistance prevents CT secondary loading, preserving phase accuracy critical for field-oriented control.

Single-Phase Online UPS Regulation

Industrial Temperature Transmitter

Use Scenario: Voltage regulation loop error amplification and battery charge control in line-interactive UPS units.

IC Role / Device Role / Timing Role: One amplifier serves as error comparator between AC input and regulated DC bus; others condition battery voltage/temperature signals.

Use Value: 1.1 MHz bandwidth supports 20 kHz PWM switching harmonics suppression, improving THD below 3%.

Use Scenario: 4–20 mA loop-powered transmitter for RTD or thermocouple inputs in hazardous-area process instrumentation.

IC Role / Device Role / Timing Role: Configured as constant-current source, linearizer, and output buffer within 3.3 V/5 V microcontroller interface.

Use Value: 120 μA per amplifier enables full signal chain operation within 4 mA loop budget, eliminating external LDO.

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 2.8 mV max V_IO, 1.7 mA supply current per amp, no on-chip trimming	Less suitable for precision DC-coupled loops; better for AC-coupled audio or wideband signal paths	Select when bandwidth >3 MHz is required and offset drift tolerance exceeds ±5 mV
OPA4134UA	Lower 0.5 mV max V_IO, 2 mA supply current, rail-to-rail output, higher cost	Preferred for high-fidelity sensor signal chains where output swing to rails is mandatory	Choose when driving low-impedance ADC inputs directly and budget permits premium performance

Compared with TL074CDR and OPA4134UA, TL034AIDR uniquely balances micropower operation (120 μA), trimmed low offset (1.5 mV), and FET-input integrity - making it optimal for cost-sensitive, thermally constrained industrial monitoring where precision and efficiency coexist.

Availability

TL034AIDR is available at Aetrix Electronics and suitable for solar inverter string monitoring, AC motor drive current sensing, and single-phase online UPS regulation requiring stable component supply across extended product lifecycles.

Supply support for TL034AIDR 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TL03x family was engineered to upgrade TL06x designs with lower offset, higher speed, and identical power - targeting precision analog signal conditioning in energy infrastructure and motor control systems.

FAQ

What is the maximum operating temperature range for TL034AIDR?

The TL034AIDR is rated for operation from –40°C to +85°C, meeting industrial temperature requirements. This I-grade specification is confirmed in Section 5.14 of the official datasheet, where electrical characteristics are guaranteed across the full range with no derating needed up to 85°C ambient.

Does TL034AIDR support single-supply operation?

TL034AIDR is designed for dual-supply use but can operate from a single supply with proper biasing. As stated in the Description section, DC input biasing and a virtual-ground reference (e.g., TI TLE2426) are required to maintain valid common-mode and output swing ranges - it does not feature rail-to-rail input or output capability.

What is the input offset voltage specification for TL034AIDR at 25°C?

Per Section 5.14 of the datasheet, TL034AIDR (I-grade) has a typical input offset voltage of 0.7 mV and a maximum of 1.5 mV at 25°C. This trimmed performance distinguishes it from the non-A variant TL034IDR, which has a 4 mV max spec under identical conditions.

How many operational amplifiers are integrated in TL034AIDR?

TL034AIDR integrates four independent FET-input operational amplifiers in a single SOIC-14 package. Pin mapping in Figure 4-4 and Table 4-4 explicitly defines channels 1–4 with dedicated input/output terminals, enabling simultaneous signal conditioning of multiple sensor or control paths.

Is TL034AIDR pin-compatible with TL034CDR?

Yes, TL034AIDR and TL034CDR share identical SOIC-14 pinouts and footprint dimensions (8.65 mm × 6 mm), as confirmed in the Device Information table. Both adhere to the same pin function definitions in Table 4-4 - only temperature grade (I vs C) and offset voltage specs differ.

TL034AIDR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

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:: Surface Mount

Supplier Device Package:: 14-SOIC

TL034AIDR FAQ

1.How can I place an order for TL034AIDR through Aetrix?

Please submit a Request for Quotation (RFQ) for TL034AIDR 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 TL034AIDR reliable?

The price and inventory of TL034AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034AIDR is usually 5 days.

3.What payment methods are accepted for TL034AIDR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034AIDR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL034AIDR?

TL034AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL034AIDR 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 TL034AIDR?

For technical support, including TL034AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034AIDR requirements.

6.How does Aetrix verify that TL034AIDR is sourced from the original manufacturer or authorized distributors?

All TL034AIDR 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 TL034AIDR meets industry standards.

7.What is the process for return or replacement of TL034AIDR?

All TL034AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TL034AIDR, 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 TL034AIDR part is unused and in its original packaging.

Return procedure for TL034AIDR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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