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Analog Devices Inc. ADTL084ARUZ
- Part No.:
- ADTL084ARUZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADTL084ARUZ.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:426
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Product details
Overview
ADTL084ARUZ from Analog Devices is a quad JFET-input operational amplifier optimized for precision analog signal conditioning in industrial and instrumentation systems. It delivers 5 MHz gain bandwidth, 20 V/μs slew rate, 16 nV/√Hz input voltage noise, ±15 V dual-supply operation, and 10 pA maximum input bias current - enabling high-accuracy active filtering, data acquisition front-ends, and sensor buffering.
For engineers reviewing the ADTL084ARUZ datasheet, ADTL084ARUZ pinout, ADTL084ARUZ application, or ADTL084ARUZ equivalent, key selection criteria include its −40°C to +125°C extended industrial temperature rating, TSSOP-14 RoHS-compliant packaging, low THD (0.001%), and compatibility with TL084-based legacy designs requiring improved offset, drift, and CMRR performance.
Technical Context
The ADTL084ARUZ implements a quad-channel JFET-input architecture with fully independent amplifiers sharing only common supply rails. Each channel features unity-gain stability, rail-to-rail output swing capability (±13.5 V at RL = 10 kΩ), and 86 dB minimum CMRR over −40°C to +125°C.
It operates from ±4 V to ±18 V supplies with 1.2 mA typical supply current per amplifier, supports simultaneous power sequencing of both rails before input signal application, and maintains 100 V/mV large-signal voltage gain into 2 kΩ loads across its full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 5 MHz - enables stable closed-loop operation up to 5× gain at 1 MHz or unity gain at 5 MHz. |
| Slew Rate | 20 V/μs - supports fast transient response in pulse amplification and active filter stages without distortion. |
| Input Bias Current | ≤10 pA max - minimizes voltage error in high-impedance sensor interfaces and integrator circuits. |
| Offset Voltage | ≤5.5 mV max - ensures ≤5.5 mV DC error at input without external trimming in precision DC-coupled paths. |
| CMRR | ≥86 dB - rejects common-mode interference in noisy industrial environments (e.g., motor drives, PLC I/O). |
| Total Harmonic Distortion | 0.001% at 1 kHz - preserves signal fidelity in audio and measurement-grade AC signal chains. |
| Supply Current per Amp | 1.2 mA typical - allows four-channel operation at <5 mA total, suitable for power-constrained embedded systems. |
Pinout & Package
ADTL084ARUZ is housed in a 14-lead Thin Shrink Small Outline Package (TSSOP, RU-14) with 0.65 mm lead pitch, 5.00 mm × 4.40 mm body size, and exposed pad thermal enhancement. The package is RoHS-compliant and rated for −40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | −IN A | Inverting input of Amplifier A - high-impedance JFET node for feedback network connection. |
| 2 | +IN A | Non-inverting input of Amplifier A - accepts high-Z sensor or reference signals with minimal loading. |
| 3 | +V | Positive supply rail - must be established before or simultaneously with input signals to prevent latch-up. |
| 4 | OUT B | Output of Amplifier B - capable of ±13.5 V swing into 10 kΩ load at ±15 V supplies. |
| 5 | −IN B | Inverting input of Amplifier B - electrically isolated from other channels; shares no internal nodes. |
| 6 | +IN B | Non-inverting input of Amplifier B - identical input characteristics to Pin 2 (10 pA IB, 10¹² Ω RIN). |
| 7 | OUT A | Output of Amplifier A - unity-gain stable; drives capacitive loads up to 100 pF without oscillation. |
| 8 | OUT C | Output of Amplifier C - independently buffered; supports multi-channel signal routing without crosstalk. |
| 9 | −IN C | Inverting input of Amplifier C - matched bias current and offset specs ensure channel-to-channel tracking. |
| 10 | +IN C | Non-inverting input of Amplifier C - same input voltage range (−11 V to +15 V) as all inputs. |
| 11 | −V | Negative supply rail - referenced to system ground; requires low-impedance decoupling near device. |
| 12 | +IN D | Non-inverting input of Amplifier D - fully specified across −40°C to +125°C with 10 μV/°C max drift. |
| 13 | −IN D | Inverting input of Amplifier D - supports differential configurations with matched input impedance. |
| 14 | OUT D | Output of Amplifier D - delivers 20 V/μs slew rate and 5 MHz bandwidth identically to other channels. |
Key Features
| Feature | Design Value |
|---|---|
| TL084-compatible pinout and function | Direct drop-in replacement for TL084 in existing SOIC-14 layouts when using ADTL084ARUZ adapter or redesign to TSSOP footprint. |
| Low input bias current (≤10 pA) | Enables use with >1 MΩ source impedances without significant DC error - critical for piezoelectric sensors and pH electrodes. |
| Extended temperature range (−40°C to +125°C) | Validated operation in automotive engine control units, industrial motor drives, and outdoor instrumentation enclosures. |
| Improved offset voltage (≤5.5 mV) | Reduces need for manual nulling or digital calibration in 12-bit to 14-bit data acquisition systems. |
| High PSRR (≥86 dB) | Maintains accuracy despite ripple on shared ±15 V supplies in multi-rail analog subsystems. |
Applications
| Industrial Process Control | Data Acquisition Front-End |
|---|---|
Use Scenario: Signal conditioning for 4–20 mA current loop transmitters and RTD/thermocouple interfaces in PLC analog I/O modules. IC Role / Device Role / Timing Role: Quad op-amp performing simultaneous I/V conversion, cold-junction compensation, filtering, and output buffering. Use Value: 10 pA input bias prevents loading of high-impedance thermocouple sources; 86 dB CMRR rejects EMI from adjacent motor drives. |
Use Scenario: Pre-amplification and anti-alias filtering ahead of 16-bit SAR ADCs in portable test equipment. IC Role / Device Role / Timing Role: Four-channel gain stage and active filter bank driving multiplexed ADC inputs with matched settling behavior. Use Value: 5 MHz GBW and 20 V/μs slew rate support 100 kSPS sampling with <0.1 LSB gain error; 0.001% THD preserves dynamic range. |
| Active Filter Bank | Sensor Signal Conditioning |
Use Scenario: 4th-order low-pass and band-pass filters in audio analyzers and vibration monitoring systems. IC Role / Device Role / Timing Role: Quad amplifier implementing cascaded biquad sections with precise pole placement via external RC networks. Use Value: Unity-gain stability and 16 nV/√Hz noise enable clean filter responses up to 100 kHz without added distortion. |
Use Scenario: High-impedance buffering of MEMS accelerometers and strain gauge Wheatstone bridges in structural health monitoring nodes. IC Role / Device Role / Timing Role: Input follower and instrumentation amplifier front-end rejecting common-mode noise while preserving microvolt-level signals. Use Value: 10¹² Ω input impedance prevents bridge imbalance; 10 μV/°C max offset drift ensures calibration stability over wide ambient ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL084CDR | Higher input bias current (200 pA max), wider offset (15 mV max), commercial temp range (0°C to 70°C), SOIC-14 only. | Limited to benign-environment consumer or lab equipment; not qualified for industrial or automotive underhood use. | Select TL084CDR only for cost-sensitive, non-critical applications where extended temperature and low IB are unnecessary. |
| OPA4134UA | Lower noise (8 nV/√Hz), lower THD (0.00008%), but higher supply current (4 mA/amp), SOIC-14, same temp range. | Better suited for high-fidelity audio or metrology; less optimal for battery-powered or thermally constrained systems. | Choose OPA4134UA when ultra-low noise and distortion outweigh power and cost constraints; ADTL084ARUZ preferred for industrial robustness and efficiency. |
Compared with TL084CDR, ADTL084ARUZ offers 20× lower input bias current and extended temperature qualification; versus OPA4134UA, it trades 50% lower supply current and broader industrial qualification for modestly higher noise - making it optimal for ruggedized, power-aware analog signal chains.
Availability
ADTL084ARUZ is available at Aetrix Electronics and suitable for industrial process control, data acquisition systems, and active filter design requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADTL084ARUZ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADTL084ARUZ belongs to the ADTL08x family of JFET-input op-amps engineered to replace legacy TL08x devices with superior offset, drift, noise, and CMRR - specifically targeting industrial instrumentation and precision control applications.
FAQ
What is the operating temperature range for ADTL084ARUZ?
The ADTL084ARUZ is specified for continuous operation from −40°C to +125°C, qualifying it for use in harsh industrial environments such as factory automation controllers, motor drive feedback circuits, and outdoor environmental monitoring systems. This extended range exceeds the 0°C to +70°C specification of standard TL084 variants and is validated across all electrical parameters in the datasheet.
Is ADTL084ARUZ pin-compatible with TL084?
ADTL084ARUZ is functionally compatible with TL084 but uses a 14-lead TSSOP (RU-14) package instead of the standard SOIC-14. Its pinout matches the TL084 signal assignment (e.g., Pin 1 = −IN A, Pin 2 = +IN A, Pin 4 = −V, etc.), but physical layout differs due to narrower body and finer pitch. A PCB redesign or adapter is required for direct replacement.
What is the maximum supply voltage for ADTL084ARUZ?
The ADTL084ARUZ supports a maximum supply voltage of ±18 V (or +36 V single supply) as defined in its Absolute Maximum Ratings table. Operation at ±15 V is recommended for optimal performance, delivering ±13.5 V output swing into 10 kΩ and maintaining full 5 MHz bandwidth and 20 V/μs slew rate across the −40°C to +125°C range.
Does ADTL084ARUZ require power supply sequencing?
Yes - the ADTL084ARUZ requires that both positive (+V) and negative (−V) supply rails be established simultaneously with or before applying any input signals. Failure to observe this may cause input stage latch-up. If sequential powering is unavoidable, input current must be externally limited to ≤10 mA using series resistors, as specified in the Power Sequencing section of the datasheet.
What is the input voltage range for ADTL084ARUZ?
The ADTL084ARUZ has a common-mode input voltage range of −11 V to +15 V when operated at ±15 V supplies. This means each input (e.g., +IN A, −IN A) can safely accept voltages within that window relative to ground, supporting rail-to-rail input capability on the positive side and extending 11 V below the negative rail - essential for interfacing with bipolar sensor outputs and level-shifted signals.
ADTL084ARUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 1.2mA (x4 Channels)
- Current - Output / Channel:
- 27 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
ADTL084ARUZ FAQ
1.How can I place an order for ADTL084ARUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADTL084ARUZ 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 ADTL084ARUZ reliable?
The price and inventory of ADTL084ARUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADTL084ARUZ is usually 5 days.
3.What payment methods are accepted for ADTL084ARUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADTL084ARUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADTL084ARUZ?
ADTL084ARUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADTL084ARUZ 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 ADTL084ARUZ?
For technical support, including ADTL084ARUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADTL084ARUZ requirements.
6.How does Aetrix verify that ADTL084ARUZ is sourced from the original manufacturer or authorized distributors?
All ADTL084ARUZ 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 ADTL084ARUZ meets industry standards.
7.What is the process for return or replacement of ADTL084ARUZ?
All ADTL084ARUZ units undergo pre-shipment inspection (PSI). If there is an issue with ADTL084ARUZ, 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 ADTL084ARUZ part is unused and in its original packaging.
Return procedure for ADTL084ARUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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