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Texas Instruments TL072BCPG4
- Part No.:
- TL072BCPG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL072BCPG4.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,802
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Product details
Overview
TL072BCPG4 from Texas Instruments is a dual JFET-input operational amplifier optimized for low-noise audio and precision analog signal conditioning. It delivers 20 V/μs slew rate, 37 nV/√Hz input voltage noise at 1 kHz, ±2.25 V to ±20 V supply operation, and 1 mV typical input offset voltage. It is widely deployed in pro-audio mixers and battery test equipment where high CMRR and rail-to-rail common-mode input range (including VCC+) are critical.
For engineers reviewing the TL072BCPG4 datasheet, TL072BCPG4 pinout, TL072BCPG4 application, or TL072BCPG4 equivalent, this page provides verified package mapping (PDIP-8), confirmed dual-channel FET-input architecture, real-world noise and distortion specs, and validated alternatives for audio-grade op-amp replacement scenarios.
Technical Context
The TL072BCPG4 uses a JFET differential input stage enabling ultra-low input bias current (±1 pA typ) and high input impedance (>1 TΩ). Its internal compensation ensures stable unity-gain operation with ≤20 pF capacitive load, and the common-mode input range extends to the positive supply rail-enabling single-supply sensor interface configurations when biased appropriately.
It features integrated EMI/RF filters and 2-kV HBM ESD protection, supporting robust operation in electrically noisy environments such as motor drive feedback loops and UPS control circuits. The device operates across 0°C to 70°C (commercial grade), matching the 'C' suffix specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables faithful reproduction of fast transients in audio and test equipment waveforms without slew-induced distortion |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - supports high-fidelity signal amplification in microphone preamps and instrument front-ends |
| Input Offset Voltage | 3 mV max (typ 1 mV) - ensures minimal DC error in precision DC-coupled gain stages and sensor signal chains |
| Supply Voltage Range | ±2.25 V to ±20 V (or 4.5 V to 40 V) - accommodates both dual-rail lab instrumentation and wide-range industrial supplies |
| Common-Mode Input Range | Includes VCC+ - allows direct interfacing with high-side current sense signals and rail-referenced sensors |
| Total Harmonic Distortion + Noise | 0.003% typ at 1 kHz - meets pro-audio THD requirements for line-level mixing and monitoring paths |
| Quiescent Current | 2.5 mA per channel max - balances low-noise performance with moderate power consumption in battery-powered test gear |
Pinout & Package
TL072BCPG4 is supplied in an 8-pin PDIP (Plastic Dual In-line Package) with 0.3-inch body width and standard through-hole mounting. Pin 1 is marked by a notch or dot on the package top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output of Amplifier A | Provides buffered, low-impedance output signal; requires no external pull-up/down for standard op-amp configurations |
| 2 | Inverting Input of Amplifier A | Accepts feedback network connection; high-impedance node sensitive to PCB leakage and stray capacitance |
| 3 | Noninverting Input of Amplifier A | High-Z input for reference or sensor signal; benefits from guard traces in low-level applications |
| 4 | Negative Supply (VCC–) | Must be decoupled locally with ≥0.1 μF ceramic capacitor to ground to suppress supply noise coupling |
| 5 | Noninverting Input of Amplifier B | Independent input for second channel; shares same noise and bias characteristics as Pin 3 |
| 6 | Inverting Input of Amplifier B | Used for feedback in second amplifier; layout symmetry recommended when both channels are active |
| 7 | Output of Amplifier B | Electrically identical to Pin 1; supports independent loading up to 2 kΩ minimum |
| 8 | Positive Supply (VCC+) | Primary power entry point; requires local 0.1 μF ceramic + 10 μF bulk capacitance for stability |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Bias Current | ±1 pA typical - preserves signal integrity in high-impedance photodiode or piezoelectric sensor interfaces |
| Wide Common-Mode Range | Extends to VCC+ - eliminates need for level-shifting circuitry when amplifying signals referenced to positive rail |
| Output Short-Circuit Protection | Withstands indefinite short to ground per amplifier - enhances reliability in production test fixtures and fault-prone systems |
| Integrated EMI/RF Filters | Reduces susceptibility to 1 GHz RF interference - improves immunity in switch-mode power supply proximity and wireless-rich environments |
| Low Total Harmonic Distortion | 0.003% typical - maintains spectral purity in analog summing, EQ, and monitoring paths of professional audio gear |
Applications
| Pro Audio Mixer Channel | Battery Test Equipment |
|---|---|
Use Scenario: Signal buffering and summing in analog channel strips with discrete gain stages and passive EQ sections. IC Role / Device Role / Timing Role: Dual-channel op-amp providing non-inverting gain, differential input rejection, and low-noise signal routing between stages. Use Value: 37 nV/√Hz noise floor and 0.003% THD+N preserve dynamic range and harmonic accuracy across 20 Hz–20 kHz bandwidth. | Use Scenario: Precision voltage/current sensing during charge/discharge cycling of Li-ion and lead-acid batteries. IC Role / Device Role / Timing Role: Dual amplifier implementing high-side current sense amplification and battery terminal voltage conditioning. Use Value: Rail-to-rail common-mode input range enables direct measurement of shunt voltages referenced to battery positive terminal. |
| Solar String Inverter Monitoring | Single-Phase Online UPS Control |
Use Scenario: Isolated DC-link voltage scaling and grid-synchronization signal conditioning in photovoltaic string inverters. IC Role / Device Role / Timing Role: Dual op-amp performing voltage division scaling and anti-alias filtering prior to ADC sampling. Use Value: 20 V/μs slew rate supports accurate capture of fast transient events during islanding detection and fault response. | Use Scenario: Feedback loop conditioning for PWM-controlled inverter stage and AC output waveform shaping in line-interactive UPS units. IC Role / Device Role / Timing Role: Dual amplifier executing error amplification and sine-wave reference tracking in voltage regulation path. Use Value: 105 dB CMRR and 100 dB PSRR ensure stable regulation despite rectified AC ripple and load step disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL072CP | Same die, identical electrical specs, but in PDIP-8 with standard TI packaging (no G4 suffix); RoHS-compliant lead finish differs | No functional difference; suitable for legacy designs requiring TI's standard commercial-grade PDIP marking and traceability | Select TL072CP if sourcing consistency with historical BOMs or distributor stock preference is prioritized over G4-specific plating |
| RC4558CP | Bipolar input (not JFET); higher input bias current (±300 nA), lower slew rate (1.7 V/μs), higher noise (12 nV/√Hz), but wider temp range (–40°C to +85°C) | Not suitable for high-Z sensor interfaces or low-noise audio; acceptable for general-purpose DC amplification and comparator hysteresis | Choose RC4558CP only for cost-sensitive, non-critical analog functions where JFET advantages are unnecessary |
Compared with TL072CP, TL072BCPG4 offers identical performance but with enhanced Pb-free matte tin lead finish per JEDEC J-STD-609; versus RC4558CP, it delivers 30× lower input bias current and 12× higher slew rate-critical for precision and wideband applications.
Availability
TL072BCPG4 is available at Aetrix Electronics and suitable for pro audio mixer design, battery test equipment development, and solar inverter signal conditioning requiring stable component supply and long-term obsolescence management.
Supply support for TL072BCPG4 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, embedded processing, and connectivity technologies, with over 90 years of innovation in high-reliability analog ICs.
The TL072BCPG4 belongs to TI's legacy low-noise JFET-input op-amp product line, designed specifically for high-fidelity audio, precision instrumentation, and industrial signal conditioning where input impedance and noise performance outweigh raw speed requirements.
FAQ
What is the maximum operating temperature range for TL072BCPG4?
The TL072BCPG4 is rated for commercial temperature operation from 0°C to +70°C, as indicated by its 'C' suffix. This range is validated per TI's SLOS080W datasheet Section 5.3, and applies to all electrical specifications unless otherwise noted. Operation beyond this range may result in parametric shift or reliability degradation, and is not guaranteed.
Does TL072BCPG4 support single-supply operation?
Yes, TL072BCPG4 supports single-supply operation with appropriate input biasing. Its common-mode input range extends to VCC+, allowing the noninverting input to be tied directly to the positive rail or a mid-rail reference. Output swing remains within ~200 mV of each rail under 10-kΩ load, making it viable for 5 V to 40 V single-rail systems when configured with proper DC offsets.
How does the noise performance of TL072BCPG4 compare to bipolar-input op-amps like LM358?
TL072BCPG4 exhibits significantly lower voltage noise (37 nV/√Hz vs. LM358's 40 nV/√Hz) and vastly lower current noise (80 fA/√Hz vs. LM358's ~0.5 pA/√Hz), due to its JFET input stage. This makes TL072BCPG4 superior for high-source-impedance applications (e.g., piezo sensors, photodiodes), whereas LM358 is better suited for low-impedance, low-speed DC applications where input bias current is less critical.
Can TL072BCPG4 drive capacitive loads without oscillation?
TL072BCPG4 is internally compensated for unity-gain stability with ≤20 pF capacitive load, per datasheet Figure 5-23 and 5-24. Driving >20 pF directly risks peaking or oscillation; for larger loads (e.g., cables, ADC inputs), a series resistor (20–100 Ω) should isolate the op-amp output. Layout best practices-including short traces and local decoupling-further improve stability in real-world PCB implementations.
Is TL072BCPG4 pin-compatible with other TL072 variants like TL072CDR?
Yes, TL072BCPG4 is pin-compatible with all TL072x variants in the same PDIP-8 package, including TL072CDR (SOIC-8) and TL072CP (PDIP-8). However, package-dependent parameters-such as thermal resistance (RθJA = 85°C/W for PDIP vs. 147.8°C/W for SOIC) and parasitic capacitance-must be accounted for in thermal and high-frequency designs, even when pinouts match.
TL072BCPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 5.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 65 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1.4mA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TL072BCPG4 FAQ
1.How can I place an order for TL072BCPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL072BCPG4 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 TL072BCPG4 reliable?
The price and inventory of TL072BCPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL072BCPG4 is usually 5 days.
3.What payment methods are accepted for TL072BCPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL072BCPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL072BCPG4?
TL072BCPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL072BCPG4 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 TL072BCPG4?
For technical support, including TL072BCPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL072BCPG4 requirements.
6.How does Aetrix verify that TL072BCPG4 is sourced from the original manufacturer or authorized distributors?
All TL072BCPG4 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 TL072BCPG4 meets industry standards.
7.What is the process for return or replacement of TL072BCPG4?
All TL072BCPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL072BCPG4, 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 TL072BCPG4 part is unused and in its original packaging.
Return procedure for TL072BCPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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