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Texas Instruments TL070IDRE4
- Part No.:
- TL070IDRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL070IDRE4.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,928
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Product details
Overview
TL070IDRE4 from Texas Instruments is a JFET-input operational amplifier optimized for high-fidelity audio preamplification, featuring 13 V/µs typical slew rate, 0.003% typical total harmonic distortion at 1 kHz, and 18 nV/√Hz input voltage noise at 1 kHz. It operates over –40°C to 85°C with ±15 V supply, low 1.4–2.5 mA quiescent current, and rail-to-rail-compatible common-mode input range extending to VCC+.
For engineers reviewing the TL070IDRE4 datasheet, TL070IDRE4 pinout, TL070IDRE4 application, or TL070IDRE4 equivalent, this page delivers verified specifications, SOIC-8 package layout, audio-grade performance context, and validated alternative options for precision analog signal conditioning.
Technical Context
The TL070IDRE4 integrates dual JFET input transistors for ultra-low input bias current (65–200 pA typ at 25°C) and high input resistance (10¹² Ω), paired with bipolar output stages for fast transient response. Its internal compensation ensures stable unity-gain operation with 3 MHz bandwidth and 13 V/µs slew rate.
Designed as a lower-noise variant of the TL080 family, it supports wide differential (±30 V) and common-mode (–12 V to +15 V) input voltage ranges, includes output short-circuit protection, and maintains latch-up-free operation across its full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 13 V/µs typical - enables clean amplification of fast audio transients without slew-induced distortion |
| Total Harmonic Distortion | 0.003% typical at 1 kHz - meets high-fidelity audio preamp linearity requirements |
| Input Voltage Noise | 18 nV/√Hz typical at 1 kHz - critical for low-noise microphone and phono stage designs |
| Input Bias Current | 65–200 pA typical at 25°C - preserves signal integrity in high-impedance sensor interfaces |
| Common-Mode Input Range | –12 V to +15 V with ±15 V supplies - supports inputs beyond negative rail, including ground-referenced signals |
| Supply Current | 1.4–2.5 mA typical - balances low power consumption with high-speed performance |
| Unity-Gain Bandwidth | 3 MHz typical - sufficient for wideband audio (20 Hz–20 kHz) with ample phase margin |
Pinout & Package
TL070IDRE4 is housed in an 8-pin SOIC (D) package per JEDEC MS-012, with 1.27 mm lead pitch, 3.91 mm body width, and moisture sensitivity level (MSL) 1 - suitable for standard reflow assembly without dry-pack requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal for input offset voltage trimming via external potentiometer |
| 2 | IN– | Inverting input - high-impedance JFET node for feedback network connection |
| 3 | IN+ | Non-inverting input - high-impedance JFET node for reference or signal injection |
| 4 | VCC– | Negative supply rail - must be connected to system ground or negative voltage source |
| 5 | OFFSET N2 | Second null adjustment terminal - used with Pin 1 for balanced offset cancellation |
| 6 | OUT | Amplified output - capable of ±12 V swing into 10 kΩ load with ±15 V supplies |
| 7 | VCC+ | Positive supply rail - accepts up to +18 V; complements Pin 4 for dual-supply operation |
| 8 | COMP | Compensation terminal - connects to external capacitor for stability tuning in high-gain configurations |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | 10¹² Ω input resistance and sub-200 pA bias current enable high-Z sensor interfacing without loading |
| Low THD + noise | 0.003% THD and 18 nV/√Hz noise ensure transparent signal reproduction in audio front-ends |
| Rail-inclusive common-mode range | Input accepts signals down to VCC– and up to VCC+, simplifying single-supply design with level-shifting |
| Output short-circuit protection | Allows safe operation during fault conditions without external current-limiting components |
| Latch-up free architecture | Guarantees robust operation under overvoltage transients and ESD events per JEDEC standards |
Applications
| Microphone Preamplifier | Phono Equalization Stage |
|---|---|
Use Scenario: Low-noise amplification of dynamic or condenser microphone outputs before ADC or further processing. IC Role / Device Role / Timing Role: Primary gain block with DC-coupled input and adjustable offset nulling for zero-drift baseline. Use Value: 18 nV/√Hz input noise and 0.003% THD preserve subtle vocal harmonics and transient detail without coloration. |
Use Scenario: RIAA-compliant equalization of vinyl playback signals requiring precise frequency shaping and low distortion. IC Role / Device Role / Timing Role: Active filter element implementing bass boost and treble cut with stable high-Q poles. Use Value: 3 MHz unity-gain bandwidth and 13 V/µs slew rate support accurate 20 kHz response with minimal phase error. |
| Instrumentation Signal Conditioning | Active Filter Node |
Use Scenario: Amplification and buffering of high-impedance sensor outputs (e.g., piezoelectric accelerometers). IC Role / Device Role / Timing Role: First-stage amplifier with JFET inputs preserving signal integrity and minimizing bias current errors. Use Value: 65–200 pA input bias current prevents voltage drop across MΩ-level sensor impedances. |
Use Scenario: Implementation of 2nd-order low-pass, high-pass, or band-pass filters in audio mixing consoles. IC Role / Device Role / Timing Role: Gain-setting and feedback element in Sallen-Key or state-variable topologies. Use Value: Stable unity-gain operation and 70–100 dB CMRR suppress power supply coupling in multi-stage filter chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL071CDR | Single-channel variant; identical electrical specs but no offset null pins (Pins 1 & 5) | Lacks dedicated offset trimming - unsuitable where drift-critical DC accuracy is required | Select TL070IDRE4 when input offset voltage adjustment is needed; choose TL071CDR for space-constrained single-amplifier layouts |
| OPA1611AIDR | Lower noise (1.1 nV/√Hz), higher slew rate (25 V/µs), rail-to-rail output, but higher supply current (3.6 mA) | Superior audio performance at cost of power; requires different PCB layout for thermal management | Choose OPA1611AIDR for premium audio systems demanding lowest noise; retain TL070IDRE4 for legacy-compatible, cost-optimized designs |
Compared with TL071CDR, TL070IDRE4 provides offset null capability essential for precision DC-coupled stages; versus OPA1611AIDR, it offers proven reliability and lower quiescent power at the expense of modern noise and speed benchmarks.
Availability
TL070IDRE4 is available at Aetrix Electronics and suitable for high-fidelity audio preamplifiers, phono equalization circuits, and instrumentation signal conditioning requiring stable component supply and long-term manufacturability.
Supply support for TL070IDRE4 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-amp design and manufacturing.
The TL070IDRE4 belongs to TI's legacy JFET-input op-amp product line, engineered specifically for high-signal-integrity audio and measurement applications where low noise, low distortion, and high input impedance are mandatory.
FAQ
What is the operating temperature range for TL070IDRE4?
The TL070IDRE4 is specified for operation from –40°C to +85°C ambient temperature. This industrial-grade range is confirmed in the device's characterization data and applies to all electrical parameters listed in the SLOS121B datasheet. The TL070IDRE4 maintains stable performance across this full range, including key metrics like input offset voltage drift (18 µV/°C max) and slew rate variation (±15% typical).
Does TL070IDRE4 support single-supply operation?
TL070IDRE4 can operate from a single supply (e.g., +15 V and ground), but its common-mode input range extends only to VCC– (ground) and up to VCC+ - not beyond. For true single-supply compatibility with inputs near ground, external level-shifting or biasing is required. The device's rail-inclusive input range simplifies this implementation compared to older bipolar-input op-amps, but it is not inherently rail-to-rail input or output.
How is offset voltage adjusted on TL070IDRE4?
TL070IDRE4 provides dedicated offset null terminals at Pins 1 (OFFSET N1) and 5 (OFFSET N2). A 10-kΩ potentiometer is connected between these pins, with its wiper grounded. Adjusting the potentiometer balances internal input stage mismatches, reducing input offset voltage to ≤3 mV typical at 25°C. This nulling function is absent in single-amplifier variants like TL071, making TL070IDRE4 preferred for DC-critical applications.
Is TL070IDRE4 RoHS compliant?
Yes, TL070IDRE4 is RoHS compliant per TI's packaging documentation. The "E4" suffix denotes TI's green packaging standard: lead-free (Pb-free) with no bromine or antimony-based flame retardants. It meets EU RoHS Directive 2011/65/EU requirements and is rated MSL 1, allowing standard reflow soldering without preconditioning.
What is the maximum supply voltage for TL070IDRE4?
The absolute maximum supply voltage for TL070IDRE4 is ±18 V (36 V total), as stated in the Absolute Maximum Ratings table. Recommended operating conditions specify ±15 V for optimal performance across all parameters, including THD, slew rate, and output swing. Exceeding ±15 V may increase power dissipation and thermal stress without improving small-signal performance.
TL070IDRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 5.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 65 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL070IDRE4 FAQ
1.How can I place an order for TL070IDRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL070IDRE4 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 TL070IDRE4 reliable?
The price and inventory of TL070IDRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL070IDRE4 is usually 5 days.
3.What payment methods are accepted for TL070IDRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL070IDRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL070IDRE4?
TL070IDRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL070IDRE4 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 TL070IDRE4?
For technical support, including TL070IDRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL070IDRE4 requirements.
6.How does Aetrix verify that TL070IDRE4 is sourced from the original manufacturer or authorized distributors?
All TL070IDRE4 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 TL070IDRE4 meets industry standards.
7.What is the process for return or replacement of TL070IDRE4?
All TL070IDRE4 units undergo pre-shipment inspection (PSI). If there is an issue with TL070IDRE4, 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 TL070IDRE4 part is unused and in its original packaging.
Return procedure for TL070IDRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL070IDRE4 Tags
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