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Texas Instruments TL288CP
- Part No.:
- TL288CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL288CP.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,517
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Product details
Overview
TL288CP 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, 10¹² Ω input resistance, and operates from ±5 V to ±15 V supplies across 0°C to 70°C. It is used in active filters, precision instrumentation amplifiers, and sensor front-ends requiring low bias current and high CMRR.
For engineers reviewing the TL288CP datasheet, TL288CP pinout, TL288CP application, or TL288CP equivalent, key selection criteria include its JFET-input stage enabling picoamp-level input bias current (≤30 pA typ), wide common-mode range (±11 V at ±15 V supply), and internal frequency compensation for unity-gain stability - critical for low-noise, high-impedance source interfacing.
Technical Context
The TL288CP integrates matched high-voltage JFET and bipolar transistors on a monolithic die to achieve low input offset voltage drift (≤10 μV/°C) and low total harmonic distortion (0.003% typ). Its dual-amplifier architecture shares a single 8-pin PDIP package with independent input/output terminals per channel and no internal connection on pins 1 and 8 (offset null).
It features latch-up-free operation, rail-to-rail output swing capability (±10 V into 10 kΩ at ±15 V supply), and robust short-circuit protection. The device is internally compensated for stable unity-gain operation without external components, supporting bandwidths up to 3 MHz while maintaining ≥60° phase margin under recommended load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ≤3 mV max at 25°C - ensures minimal DC error in precision gain stages and sensor signal chains. |
| Slew Rate | 18 V/μs typ - supports fast settling for audio and data acquisition applications up to ~100 kHz full-power bandwidth. |
| Input Bias Current | ≤30 pA typ - enables use with high-impedance sources (e.g., piezoelectric sensors, photodiode transimpedance amps) without significant error. |
| Common-Mode Range | −11 V to +11 V at ±15 V supply - allows direct interfacing to signals near supply rails in single-supply derived systems. |
| Supply Voltage Range | ±5 V to ±15 V - provides design flexibility across low-power and high-dynamic-range analog systems. |
| Unity-Gain Bandwidth | 3 MHz - sufficient for stable closed-loop operation in active filters, integrators, and voltage followers up to mid-audio frequencies. |
| CMRR | ≥80 dB - rejects power supply and shared-noise coupling in differential measurement circuits. |
Pinout & Package
TL288CP is housed in an 8-pin Plastic Dual In-line Package (PDIP-P), with 0°C to 70°C temperature rating and tube packaging (50 units/tube). Pin 1 and Pin 8 are NC (no internal connection) and reserved for offset null adjustment in related variants (TL088/TL087); they are unconnected in TL288CP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection - not bonded; must be left floating or grounded per layout best practice. |
| 2 | Inverting Input (Ch1) | High-impedance JFET input node for first op-amp channel; requires guard ring for leakage control. |
| 3 | Non-inverting Input (Ch1) | High-impedance JFET input node; common-mode range extends to within 4 V of either supply rail. |
| 4 | VCC− | Negative supply terminal - must be decoupled with 0.1 μF ceramic capacitor close to pin. |
| 5 | NC | No internal connection - not bonded; must be left floating or grounded. |
| 6 | Output (Ch1) | Class-AB output stage capable of ±80 mA short-circuit current and ±10 V swing into 10 kΩ. |
| 7 | VCC+ | Positive supply terminal - must be decoupled with 0.1 μF ceramic capacitor close to pin. |
| 8 | NC | No internal connection - not bonded; must be left floating or grounded. |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | Enables ≤30 pA input bias current - essential for ultra-high-impedance sensor interfaces and long-time-constant integrators. |
| Internal frequency compensation | Guarantees unity-gain stability without external components - reduces BOM count and layout sensitivity in follower/buffer designs. |
| Latch-up free operation | Prevents destructive failure during overvoltage or ESD events - improves field reliability in industrial environments. |
| High slew rate (18 V/μs) | Supports accurate reproduction of fast-rising signals (e.g., pulse conditioning, DAC output buffering) without slew-induced distortion. |
| Low THD (0.003% typ) | Minimizes harmonic artifacts in audio and precision waveform generation - critical for test equipment signal integrity. |
Applications
| Active Low-Pass Filter | Precision Instrumentation Amplifier Front-End |
|---|---|
Use Scenario: Anti-aliasing filtering before 16-bit SAR ADC in data loggers. IC Role / Device Role / Timing Role: Dual op-amp configured as 2nd-order Sallen-Key topology with matched gain-setting resistors. Use Value: JFET inputs prevent resistor noise dominance; 18 V/μs slew rate preserves transient fidelity up to 100 kHz corner frequency. | Use Scenario: Differential signal conditioning for strain-gauge bridge outputs in load cells. IC Role / Device Role / Timing Role: First-stage non-inverting amplifier with 100× gain, driving instrumentation amp reference path. Use Value: ≤30 pA bias current avoids bridge imbalance error; 80 dB CMRR suppresses common-mode noise from motor drives. |
| Photodiode Transimpedance Amplifier | Audio Line Driver |
Use Scenario: Converting nanoamp photocurrent from UV sensor into voltage for microcontroller ADC. IC Role / Device Role / Timing Role: Single-channel configured as transimpedance amplifier with 10 MΩ feedback resistor. Use Value: 10¹² Ω input impedance prevents signal attenuation; low input capacitance minimizes peaking with large feedback networks. | Use Scenario: Driving 600 Ω professional audio lines from DAC output in studio mixer. IC Role / Device Role / Timing Role: Unity-gain buffer with dual configuration for stereo L/R channels. Use Value: 0.003% THD ensures clean signal delivery; ±10 V swing supports +24 dBu professional line level. |
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 | Same pinout, identical 8-pin PDIP package; lower slew rate (13 V/μs), higher input offset voltage (6 mV max), and wider temp range (0°C to 70°C same). | Less suitable for high-speed active filters or fast-settling data acquisition due to reduced slew rate and bandwidth. | Select TL082CP only when cost is primary constraint and 18 V/μs slew rate is not required. |
| RC4558CP | Bipolar-input architecture; higher input bias current (300 nA), lower input impedance (300 kΩ), but lower input offset voltage (2 mV max) and same 8-pin PDIP. | Not recommended for high-Z sources; better suited for general-purpose audio and comparator hysteresis where bias current is irrelevant. | Choose RC4558CP for cost-sensitive consumer audio; avoid in photodiode or precision sensor circuits. |
Compared with TL082CP and RC4558CP, TL288CP offers superior slew rate and input impedance for high-fidelity signal conditioning, while retaining pin compatibility with TL082CP - enabling drop-in upgrade in legacy designs where bandwidth and bias current matter.
Availability
TL288CP is available at Aetrix Electronics and suitable for industrial instrumentation, test equipment calibration, and sensor interface modules requiring stable component supply and long-term obsolescence mitigation.
Supply support for TL288CP 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-amps and industrial-grade signal chain solutions.
The TL288CP belongs to TI's legacy JFET-input op-amp family, engineered for high-accuracy analog signal conditioning in environments demanding low input bias current, wide supply range, and robust thermal performance.
FAQ
What is the maximum operating temperature range for the TL288CP?
The TL288CP is characterized for operation from 0°C to 70°C ambient temperature. This commercial-grade rating aligns with its C-suffix designation and makes it suitable for indoor industrial controls and benchtop test equipment, but not extended-temperature automotive or military applications. The TL288I (−40°C to 85°C) and TL288M (−55°C to 125°C) variants exist for harsher environments, but TL288CP itself is strictly rated for 0°C to 70°C.
Does the TL288CP support offset voltage trimming?
No, the TL288CP does not support offset voltage trimming. Unlike the TL087 and TL088, which provide dedicated offset null pins (1 and 8), the TL288CP leaves pins 1 and 8 unconnected (NC) with no internal offset adjustment circuitry. Its input offset voltage is factory trimmed to ≤3 mV max at 25°C and exhibits ≤10 μV/°C drift, eliminating the need for external potentiometers in most precision applications.
Can the TL288CP drive capacitive loads without oscillation?
The TL288CP is stable with ≤100 pF capacitive loads under standard conditions. For larger loads (e.g., >300 pF), ringing or oscillation may occur due to phase margin degradation. To maintain stability, add a series isolation resistor (e.g., 50 Ω to 2 kΩ) between the output and capacitive load - as validated in TI's Figure 43. This technique preserves signal integrity in cable-driving or ADC input-buffering applications.
What is the input common-mode voltage range of the TL288CP at ±15 V supply?
At ±15 V supply, the TL288CP supports a common-mode input voltage range of −11 V to +11 V - i.e., within 4 V of either rail. This specification is confirmed in the "Recommended Operating Conditions" table (page 3) and electrical characteristics (page 4) of the SLOS082B datasheet. It enables direct interfacing to signals referenced to ground or split supplies without level-shifting circuitry.
Is the TL288CP pin-compatible with the TL082CP?
Yes, the TL288CP is pin-compatible with the TL082CP in the 8-pin PDIP (P) package: both share identical pin assignments for VCC+, VCC−, In−/In+, and Output per channel. However, TL288CP has NC on pins 1 and 8 (no offset null), whereas TL082CP uses those pins for offset trim. Layouts designed for TL082CP can accommodate TL288CP without PCB changes, but offset adjustment functionality will be unavailable.
TL288CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- 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
TL288CP FAQ
1.How can I place an order for TL288CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL288CP 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 TL288CP reliable?
The price and inventory of TL288CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL288CP is usually 5 days.
3.What payment methods are accepted for TL288CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL288CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL288CP?
TL288CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL288CP 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 TL288CP?
For technical support, including TL288CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL288CP requirements.
6.How does Aetrix verify that TL288CP is sourced from the original manufacturer or authorized distributors?
All TL288CP 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 TL288CP meets industry standards.
7.What is the process for return or replacement of TL288CP?
All TL288CP units undergo pre-shipment inspection (PSI). If there is an issue with TL288CP, 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 TL288CP part is unused and in its original packaging.
Return procedure for TL288CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL288CP Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM2902DR
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LM358P
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