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

Texas Instruments TL034ACDR

Name: TL034ACDR
Brand: Texas Instruments
SKU: TL034ACDR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL034ACDR

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: TL034ACDR.pdf

Description:: IC OPAMP JFET 4 CIRCUIT 14SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TL034ACDR 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, 0.7 mV max 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 TL034ACDR datasheet, TL034ACDR pinout, TL034ACDR application, or TL034ACDR equivalent, this page provides verified electrical specifications, SOIC-14 package details, real-world use cases in AC/DC power conversion, and validated alternative options for design continuity and sourcing flexibility.

Technical Context

The TL034ACDR uses Texas Instruments' enhanced LinCMOS™ FET process to achieve improved DC accuracy over TL06x amplifiers while maintaining micropower operation. Its architecture features on-chip offset-voltage trimming and optimized slew rate (2.9 V/μs positive, 5.1 V/μs negative) without increasing quiescent current.

Designed for dual-supply operation, it supports common-mode input ranges from −11.5 V to +14 V at ±15 V supplies and offers 94 dB typical CMRR and 140 dB supply-voltage rejection - critical for noise-immune analog front-ends in high-voltage power electronics.

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 max (25°C) - enables accurate DC-coupled signal amplification with minimal calibration
Unity-Gain Bandwidth	1.1 MHz - sufficient for anti-aliasing, current sensing, and control loop compensation up to ~100 kHz
Slew Rate	2.9 V/μs (positive), 5.1 V/μs (negative) - handles fast transient signals in motor phase-current monitoring
Input Resistance	10¹² Ω - preserves signal integrity when interfacing with piezoelectric sensors or high-Z voltage dividers
Supply Current per Amp	120–280 μA - allows four-channel operation under 1.2 mA total, ideal for battery-backed or energy-harvesting systems
Common-Mode Rejection	94 dB typical - rejects noise from shared ground paths in multi-channel inverter gate drivers

Pinout & Package

TL034ACDR is supplied in a 14-pin SOIC (D) package measuring 8.65 mm × 6.0 mm, with standard JEDEC MS-012 outline and surface-mount compatibility.

Pin/Terminal	Circuit Role	Design Meaning
1OUT	Output, channel 1	Amplified output of first op-amp; drives feedback networks or ADC inputs
1IN−	Inverting Input, channel 1	High-impedance node for closed-loop gain setting and differential sensing
1IN+	Non-Inverting Input, channel 1	Reference or sensor input path; benefits from 10¹² Ω input resistance
VCC+	Power supply positive	Connects to +5 V or +15 V rail; decoupling capacitor required near pin
2IN+	Non-Inverting Input, channel 2	Independent input for second channel; no crosstalk (120 dB isolation)
2IN−	Inverting Input, channel 2	Configurable for transimpedance or difference-amplifier topologies
2OUT	Output, channel 2	Independent output; supports parallel or cascaded signal processing
3OUT	Output, channel 3	Third channel output; usable for auxiliary functions like bias generation
3IN−	Inverting Input, channel 3	Valid input node; fully specified across temperature and supply range
3IN+	Non-Inverting Input, channel 3	Matches performance of channels 1 and 2; no derating required
VCC−	Power supply negative	Connects to −5 V or −15 V rail; symmetric supply improves PSRR
4IN+	Non-Inverting Input, channel 4	Enables full four-channel utilization in compact space-constrained designs
4IN−	Inverting Input, channel 4	Supports independent gain configuration per channel
4OUT	Output, channel 4	Final channel output; maintains 1.1 MHz bandwidth and 60° phase margin

Key Features

Feature	Design Value
On-chip offset trimming	Reduces initial V_IO to ≤0.7 mV (TL034AC), cutting system-level calibration time by >50% vs untrimmed variants
FET input stage	10¹² Ω input resistance and 2 fA/√Hz noise current enable direct connection to pH electrodes or photodiode arrays
Low power consumption	120 μA per amplifier at ±15 V allows four-channel operation under 0.5 mA - extends runtime in portable test equipment
Enhanced AC performance	2.9 V/μs slew rate and 1.1 MHz bandwidth deliver 10× faster response than TL064 while using identical supply current
SOIC-14 packaging	Industry-standard 8.65 mm × 6.0 mm footprint ensures drop-in replacement for legacy quad op-amps in existing PCB layouts

Applications

Solar Inverter String Monitoring	Motor Drive Current Sensing
Use Scenario: Measuring DC-link voltage and string current in central solar inverters with galvanically isolated feedback paths. IC Role / Device Role / Timing Role: TL034ACDR serves as a quad precision buffer and difference amplifier for shunt-based current measurement and bus voltage scaling. Use Value: 0.7 mV offset and 94 dB CMRR suppress common-mode noise from IGBT switching transients, improving measurement accuracy to ±0.25% full scale.	Use Scenario: Closed-loop phase current acquisition in three-phase AC servo drives with space-vector PWM modulation. IC Role / Device Role / Timing Role: TL034ACDR configures two channels as current-sense amplifiers and two as comparator reference buffers. Use Value: 1.1 MHz bandwidth supports accurate reconstruction of 20 kHz PWM currents, while 120 μA/channel minimizes thermal drift in enclosed drive enclosures.
Single-Phase Online UPS Feedback	Industrial Sensor Signal Conditioning
Use Scenario: Real-time regulation of output voltage and battery charge current in line-interactive UPS units. IC Role / Device Role / Timing Role: TL034ACDR implements error amplification, battery voltage monitoring, and load current limiting in a single IC. Use Value: Four independent amplifiers reduce component count by 75% versus discrete solutions, while ±15 V operation matches standard UPS control rail voltages.	Use Scenario: Conditioning outputs from RTDs, thermocouples, and strain gauges in PLC analog input modules. IC Role / Device Role / Timing Role: TL034ACDR provides programmable-gain instrumentation, cold-junction compensation, and filter stages. Use Value: 10¹² Ω input resistance prevents loading of high-Z sensor elements, preserving ±0.1°C temperature resolution over 0–85°C.

Solar Inverter String Monitoring

Motor Drive Current Sensing

Use Scenario: Measuring DC-link voltage and string current in central solar inverters with galvanically isolated feedback paths.

IC Role / Device Role / Timing Role: TL034ACDR serves as a quad precision buffer and difference amplifier for shunt-based current measurement and bus voltage scaling.

Use Value: 0.7 mV offset and 94 dB CMRR suppress common-mode noise from IGBT switching transients, improving measurement accuracy to ±0.25% full scale.

Use Scenario: Closed-loop phase current acquisition in three-phase AC servo drives with space-vector PWM modulation.

IC Role / Device Role / Timing Role: TL034ACDR configures two channels as current-sense amplifiers and two as comparator reference buffers.

Use Value: 1.1 MHz bandwidth supports accurate reconstruction of 20 kHz PWM currents, while 120 μA/channel minimizes thermal drift in enclosed drive enclosures.

Single-Phase Online UPS Feedback

Industrial Sensor Signal Conditioning

Use Scenario: Real-time regulation of output voltage and battery charge current in line-interactive UPS units.

IC Role / Device Role / Timing Role: TL034ACDR implements error amplification, battery voltage monitoring, and load current limiting in a single IC.

Use Value: Four independent amplifiers reduce component count by 75% versus discrete solutions, while ±15 V operation matches standard UPS control rail voltages.

Use Scenario: Conditioning outputs from RTDs, thermocouples, and strain gauges in PLC analog input modules.

IC Role / Device Role / Timing Role: TL034ACDR provides programmable-gain instrumentation, cold-junction compensation, and filter stages.

Use Value: 10¹² Ω input resistance prevents loading of high-Z sensor elements, preserving ±0.1°C temperature resolution over 0–85°C.

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
TL034CDR	Higher max input offset (0.91 mV vs 0.7 mV) and wider temp range (0–70°C vs 0–70°C same, but no A-grade trimming)	Acceptable where <1 mV offset is sufficient; lower cost for non-critical sensing	Select TL034CDR for cost-sensitive industrial controls where calibration headroom exists
TL074CDR	Higher supply current (1.4 mA vs 0.48 mA typ), higher offset (3 mV), no on-chip trimming	Used in audio and general-purpose circuits; not recommended for precision power electronics	Choose TL074CDR only if bandwidth >3 MHz is required and power budget permits 3× higher current

Compared with TL034CDR and TL074CDR, the TL034ACDR provides the lowest input offset voltage and tightest temperature coefficient among SOIC-14 quad FET op-amps in its power class, making it the preferred choice for calibrated measurement subsystems where long-term DC stability is mandatory.

Availability

TL034ACDR is available at Aetrix Electronics and suitable for solar inverter string monitoring, motor drive current sensing, and single-phase online UPS feedback requiring stable component supply across extended production lifecycles.

Supply support for TL034ACDR 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 amplifiers and power management ICs.

The TL03x family was engineered to replace TL06x op-amps in industrial power conversion and sensor signal chains, delivering superior DC accuracy and AC speed within identical micropower envelopes.

FAQ

What is the maximum operating temperature range for TL034ACDR?

The TL034ACDR is characterized for operation from 0°C to 70°C (C-suffix grade). Its electrical specifications - including input offset voltage, common-mode range, and slew rate - are guaranteed across this full industrial temperature range, ensuring reliable performance in enclosed control cabinets and outdoor solar enclosures without derating.

Can TL034ACDR operate from a single supply?

TL034ACDR is designed for dual-supply operation and requires careful biasing for single-supply use. When operated from a single rail, DC input biasing and virtual-ground referencing (e.g., using TI's TLE2426) are mandatory to stay within common-mode input limits (−1.5 V to +4 V at ±5 V equiv.) and avoid clipping. Direct single-supply connection without biasing will result in non-functional behavior.

How does TL034ACDR compare to TL034CDR in precision applications?

TL034ACDR provides tighter input offset voltage (0.7 mV max vs 0.91 mV max) and lower temperature coefficient (11.6 μV/°C vs 11.6 μV/°C same spec, but A-grade units show better consistency) due to on-chip offset trimming. In precision current sensing or voltage monitoring, this reduces system calibration frequency and improves long-term accuracy - especially critical in revenue-grade energy metering.

What is the minimum recommended load impedance for TL034ACDR outputs?

TL034ACDR is specified with RL = 10 kΩ for output swing and distortion testing. While it can drive lower impedances, sustained loads below 2 kΩ may degrade slew rate and increase thermal stress. For driving ADC inputs or cables, a 10 kΩ minimum load ensures full 14.955 V peak output swing at ±15 V supplies and maintains 60° phase margin stability.

Does TL034ACDR support rail-to-rail input or output operation?

No, TL034ACDR does not support rail-to-rail input or output. Its common-mode input range is limited to −11.5 V to +14 V at ±15 V supplies (i.e., 1.5 V away from each rail), and output swing is specified as ±14.955 V - leaving ~45 mV headroom. This limitation must be accounted for in feedback network design and signal scaling to prevent clipping or saturation.

TL034ACDR 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:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

TL034ACDR FAQ

1.How can I place an order for TL034ACDR through Aetrix?

Please submit a Request for Quotation (RFQ) for TL034ACDR 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 TL034ACDR reliable?

The price and inventory of TL034ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL034ACDR is usually 5 days.

3.What payment methods are accepted for TL034ACDR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL034ACDR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL034ACDR?

TL034ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL034ACDR 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 TL034ACDR?

For technical support, including TL034ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL034ACDR requirements.

6.How does Aetrix verify that TL034ACDR is sourced from the original manufacturer or authorized distributors?

All TL034ACDR 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 TL034ACDR meets industry standards.

7.What is the process for return or replacement of TL034ACDR?

All TL034ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TL034ACDR, 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 TL034ACDR part is unused and in its original packaging.

Return procedure for TL034ACDR:

1.Submit a request within 90 days.

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

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