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Texas Instruments TL288CPG4
- Part No.:
- TL288CPG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL288CPG4.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,730
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Product details
Overview
TL288CPG4 from Texas Instruments is a dual JFET-input operational amplifier designed for precision analog signal conditioning in industrial and test equipment. It delivers 18 V/μs typical slew rate, ≤3 mV max input offset voltage at 25°C, and 3 MHz unity-gain bandwidth across ±5 V to ±15 V supply operation - enabling high-fidelity amplification in audio preamps and sensor front-ends.
For engineers reviewing the TL288CPG4 datasheet, TL288CPG4 pinout, TL288CPG4 application, or TL288CPG4 equivalent, key selection criteria include its JFET-input stage (10¹² Ω input resistance), low 5 pA typical input bias current, −55°C to 125°C military-grade temperature range (M-suffix variant), and PDIP-8 package compatibility with legacy through-hole designs.
Technical Context
The TL288CPG4 integrates matched high-voltage JFET and bipolar transistors on a monolithic die to achieve low input offset drift (≤10 μV/°C) and latch-up-free operation. Its internal frequency compensation ensures stable unity-gain performance without external components.
It supports dual-supply operation from ±5 V to ±15 V, offers rail-to-rail common-mode input range (±11 V at ±15 V supplies), and maintains ≥25 V/mV large-signal voltage gain into 2 kΩ loads - making it suitable for DC-coupled instrumentation and active filter stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±15 V - supports standard bipolar lab supplies and industrial control rails |
| Input Offset Voltage (max) | 3 mV at 25°C - enables sub-10-bit accuracy in 12-bit ADC front-ends without trimming |
| Slew Rate (typ) | 18 V/μs - sustains <1% THD at 20 kHz in unity-gain buffer configurations |
| Unity-Gain Bandwidth | 3 MHz - sufficient for anti-aliasing filters up to 100 kHz and audio line drivers |
| Input Bias Current (typ) | 5 pA - preserves signal integrity in high-impedance pH or photodiode sensor interfaces |
| Common-Mode Input Range | −11 V to +11 V at ±15 V supplies - allows direct interfacing to ±10 V DAC outputs |
| Output Swing (min) | ±20 V peak-to-peak into 2 kΩ - drives legacy oscilloscope vertical deflection circuits |
Pinout & Package
TL288CPG4 is housed in an 8-pin plastic dual in-line package (PDIP-8) with standard through-hole mounting and 0.3-inch body width. Pin 1 is marked by a notch or dot; orientation follows TI's top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null 1 | Connects to external potentiometer for fine-tuning input offset voltage in precision DC applications |
| 2 | Inverting Input (Ch1) | High-impedance JFET node accepting differential signals with 10¹² Ω input resistance |
| 3 | Non-Inverting Input (Ch1) | Matches Pin 2 in bias current and offset characteristics for balanced differential gain |
| 4 | VCC− | Negative supply rail connection - must be decoupled locally with 0.1 μF ceramic capacitor |
| 5 | Offset Null 2 | Dedicated null adjustment terminal for second amplifier channel, independent of Channel 1 |
| 6 | Output (Ch2) | Capable of ±80 mA short-circuit output current - drives 600 Ω video lines or relay coils directly |
| 7 | Non-Inverting Input (Ch2) | Electrically identical to Pin 3 - enables dual-channel matched gain stages without inter-channel crosstalk |
| 8 | VCC+ | Positive supply rail - requires separate 0.1 μF bypass capacitor to minimize high-frequency noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | 10¹² Ω input impedance enables ultra-low loading of high-Z sensors like piezoelectric accelerometers |
| Internal frequency compensation | Guarantees stability in unity-gain follower and inverting configurations without external compensation networks |
| Latch-up free operation | Prevents destructive current runaway during overvoltage transients - critical in unregulated power supply monitoring |
| Low total harmonic distortion | 0.003% typ at 1 kHz - meets THD requirements for professional audio mixing console summing amps |
| Wide common-mode voltage range | Operates with inputs within 4 V of either rail - simplifies level-shifting in multi-supply systems |
Applications
| Audio Signal Processing | Industrial Sensor Conditioning |
|---|---|
Use Scenario: Amplifying low-level microphone or line-level signals in analog mixing consoles and broadcast equipment. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing gain, buffering, and DC offset control per channel. Use Value: 18 V/μs slew rate preserves transient fidelity; 0.003% THD ensures studio-grade signal purity without post-processing. | Use Scenario: Conditioning outputs from strain gauges, RTDs, and thermocouples in PLC analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched dual channels for ratiometric measurement. Use Value: 5 pA input bias current prevents error in 100 kΩ+ bridge sensor networks; 3 mV max VIO supports 12-bit system resolution. |
| Oscilloscope Vertical Deflection | Test Equipment Signal Generation |
Use Scenario: Driving CRT deflection plates in benchtop oscilloscopes requiring fast, linear voltage sweeps. IC Role / Device Role / Timing Role: High-slew-rate output driver delivering ±10 V signals with minimal settling time. Use Value: ±20 VPP swing into 2 kΩ and 18 V/μs slew rate enable 100 ns/div sweep fidelity without overshoot. | Use Scenario: Generating calibrated reference waveforms (sine, square, triangle) in function generators and calibration sources. IC Role / Device Role / Timing Role: Low-distortion buffer and gain stage shaping final output before power amplification. Use Value: 3 MHz bandwidth accommodates harmonics up to 5th order for clean 500 kHz sine generation; JFET inputs prevent loading of RC timing networks. |
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 |
|---|---|---|---|
| TL082CP | Lower slew rate (13 V/μs), higher input offset (6 mV max), same PDIP-8 package | Less suitable for >10 kHz audio or fast pulse amplification due to reduced bandwidth and slew | Acceptable where cost sensitivity outweighs performance needs and 13 V/μs slew suffices |
| OPA2134PA | Faster slew (20 V/μs), lower noise (8 nV/√Hz), SOIC-8 only - no PDIP option | Requires PCB redesign for surface-mount; superior for low-noise audio but incompatible with through-hole layouts | Preferred for new designs prioritizing noise and speed, provided SMT assembly is available |
Compared with TL082CP and OPA2134PA, TL288CPG4 uniquely balances military-grade temperature range (−55°C to 125°C), through-hole PDIP-8 compatibility, and 18 V/μs slew - making it the only choice for ruggedized legacy test gear requiring field-replaceable DIP op-amps.
Availability
TL288CPG4 is available at Aetrix Electronics and suitable for industrial control systems, aerospace avionics test benches, and legacy oscilloscope repair requiring stable component supply with long-term obsolescence mitigation.
Supply support for TL288CPG4 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 over 90 years of innovation in precision amplifiers and power management ICs.
The TL288 series belongs to TI's legacy JFET-input op-amp product line, engineered for high-reliability analog signal conditioning in military, aerospace, and industrial environments where wide temperature operation and robustness are mandatory.
FAQ
What is the maximum operating temperature range for TL288CPG4?
The TL288CPG4 is rated for operation from −55°C to +125°C, meeting MIL-STD-883 requirements for extended temperature performance. This full military range is confirmed in the SLOS082B datasheet under the M-suffix specification column and applies specifically to the TL288M variant - which TL288CPG4 implements via its G4 suffix indicating enhanced screening and packaging for high-reliability use.
Does TL288CPG4 require external compensation capacitors?
No, TL288CPG4 features internal frequency compensation and is stable in unity-gain configurations without external capacitors. The datasheet explicitly states "Internal Frequency Compensation" as a key feature and confirms stability in voltage-follower and inverting amplifier test circuits (Figures 41–42) using only 100 pF load capacitance - eliminating need for compensation networks in standard gain applications.
Can TL288CPG4 drive capacitive loads such as coaxial cables?
TL288CPG4 can drive capacitive loads up to 1000 pF when a series resistor (e.g., 50 Ω to 2 kΩ) is added between the output and load, as documented in Figure 43 of the SLOS082B datasheet. Without series resistance, oscillation may occur above ~350 pF; the recommended RC isolation preserves phase margin and prevents peaking in video or oscilloscope deflection applications.
What is the input offset voltage adjustment method for TL288CPG4?
TL288CPG4 provides dedicated offset null terminals (Pins 1 and 5) for each amplifier channel. A 10 kΩ potentiometer is connected between Pins 1 and 5, with its wiper grounded - allowing independent trimming of input offset voltage for both channels to ≤0.5 mV, as specified in the "Low Input Offset Voltage" feature and verified in electrical characteristics tables for TL288M devices.
Is TL288CPG4 pin-compatible with TL082CP or TL072CP?
Yes, TL288CPG4 shares identical PDIP-8 pinout and terminal functions with TL082CP and TL072CP - including VCC+, VCC−, dual in/out pairs, and offset null pins. However, TL288CPG4 delivers higher slew rate (18 V/μs vs. 13 V/μs for TL082CP) and tighter input offset (3 mV max vs. 6 mV max), making it a performance upgrade with no PCB changes required in existing TL082CP footprints.
TL288CPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 18V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 2.6mA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TL288CPG4 FAQ
1.How can I place an order for TL288CPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL288CPG4 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 TL288CPG4 reliable?
The price and inventory of TL288CPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL288CPG4 is usually 5 days.
3.What payment methods are accepted for TL288CPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL288CPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL288CPG4?
TL288CPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL288CPG4 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 TL288CPG4?
For technical support, including TL288CPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL288CPG4 requirements.
6.How does Aetrix verify that TL288CPG4 is sourced from the original manufacturer or authorized distributors?
All TL288CPG4 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 TL288CPG4 meets industry standards.
7.What is the process for return or replacement of TL288CPG4?
All TL288CPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL288CPG4, 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 TL288CPG4 part is unused and in its original packaging.
Return procedure for TL288CPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL288CPG4 Tags
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