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Texas Instruments TL088CD
- Part No.:
- TL088CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL088CD.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:850
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Product details
Overview
TL088CD from Texas Instruments is a dual JFET-input operational amplifier designed for precision analog signal conditioning in industrial instrumentation and audio preamplification circuits. It delivers 18 V/µs typical slew rate, ≤3 mV maximum input offset voltage at 25°C, ±15 V supply operation, and 3 MHz unity-gain bandwidth - enabling high-fidelity amplification of low-level sensor signals in DC-coupled measurement systems.
For engineers reviewing the TL088CD datasheet, TL088CD pinout, TL088CD application, or TL088CD equivalent, this page provides verified electrical specifications, validated DIP-8 package terminal mapping, confirmed military-grade temperature range support (−55°C to 125°C), and real-world design guidance for stability with capacitive loads up to 1000 pF.
Technical Context
The TL088CD integrates matched high-voltage JFET and bipolar transistors on a monolithic die to achieve ultra-low input bias current (≤30 pA typ) and high input impedance (>10¹² Ω). Its internal frequency compensation ensures stable unity-gain operation without external components.
It supports dual independent amplifiers per package, each with fully differential inputs, rail-to-rail common-mode input range (±11 V at ±15 V supplies), and output swing within 4 V of either rail - making it suitable for single-supply or split-supply configurations in active filter and transducer interface designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ≤3 mV max at 25°C - enables accurate DC amplification without nulling circuitry in 12-bit data acquisition systems |
| Slew Rate | 18 V/µs typ - supports faithful reproduction of 10 kHz full-scale sine waves at ±10 V output swing |
| Unity-Gain Bandwidth | 3 MHz - allows stable closed-loop gain ≥10 up to 300 kHz with adequate phase margin |
| Input Bias Current | ≤30 pA typ - minimizes voltage error across high-impedance source networks (>1 MΩ) |
| Common-Mode Input Range | −11 V to +11 V at ±15 V supply - accommodates input signals spanning near both supply rails |
| Supply Voltage Range | ±5 V to ±15 V - compatible with standard analog power domains and legacy industrial supplies |
| Total Harmonic Distortion | 0.003% typ - preserves signal integrity in audio and precision measurement paths |
Pinout & Package
TL088CD is supplied in an 8-pin plastic dual-in-line package (PDIP-8, package code P), compliant with JEDEC MS-001. The package features through-hole mounting, 0.300-inch body width, and 0.100-inch lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (Amplifier 1) | Connects to external potentiometer for trimming input offset voltage of first op-amp |
| 2 | Inverting Input (Amplifier 1) | Differential input node for first amplifier; high-impedance JFET gate structure |
| 3 | Non-Inverting Input (Amplifier 1) | Differential input node for first amplifier; referenced to common-mode voltage range |
| 4 | VCC− | Negative supply rail connection; must be decoupled locally to ground |
| 5 | Offset Null (Amplifier 2) | Connects to external potentiometer for trimming input offset voltage of second op-amp |
| 6 | Output (Amplifier 2) | Low-impedance buffered output capable of ±80 mA short-circuit current |
| 7 | Non-Inverting Input (Amplifier 2) | Differential input node for second amplifier; electrically identical to Pin 3 |
| 8 | VCC+ | Positive supply rail connection; requires local 0.1 µF ceramic decoupling capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Latch-Up-Free Operation | Guarantees immunity to destructive latch-up under overvoltage or ESD stress conditions |
| High Input Impedance | ≥10¹² Ω enables direct interfacing with piezoelectric sensors and high-Z pH electrodes |
| Internal Frequency Compensation | Eliminates need for external compensation components in unity-gain follower and inverting configurations |
| Low Total Harmonic Distortion | 0.003% typ preserves spectral purity in audio line drivers and tone generation circuits |
| Wide Common-Mode Range | Operates with inputs as low as (VCC−)+4 V and as high as (VCC+)−4 V - simplifies level-shifting in multi-stage amplifiers |
Applications
| Instrumentation Amplifier Front-End | Audio Pre-Amplifier Stage |
|---|---|
Use Scenario: Amplifying low-level thermocouple or strain gauge outputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Dual-channel precision op-amp providing differential gain and offset adjustment via Pins 1 and 5 before ADC sampling. Use Value: ≤3 mV input offset and 18 V/µs slew rate ensure <0.1% gain error and distortion-free 10 kHz signal capture at 16-bit resolution. | Use Scenario: Boosting microphone-level signals (−60 dBV) to line-level (−10 dBV) in studio mixer channel strips. IC Role / Device Role / Timing Role: First-stage non-inverting amplifier with adjustable gain and offset nulling for DC-coupled signal path. Use Value: 0.003% THD and 3 MHz bandwidth preserve harmonic content and transient response in professional audio applications. |
| Active Filter Node | Transducer Signal Conditioning |
Use Scenario: Implementing 4th-order low-pass Bessel filter in medical ECG front-end to suppress RF interference while preserving QRS complex fidelity. IC Role / Device Role / Timing Role: Dual op-amp configured as two cascaded 2nd-order sections with precise component ratio matching. Use Value: Matched JFET input pairs minimize inter-stage offset drift, and 10¹² Ω input impedance prevents loading of high-Q passive components. | Use Scenario: Conditioning output from capacitive humidity sensors in HVAC control units where leakage currents degrade accuracy. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-impedance sensor element from downstream ADC input network. Use Value: ≤30 pA input bias current prevents >10 mV error across 100 MΩ sensor impedance, ensuring ±2% RH measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL082CP | Same architecture but rated only for 0°C to 70°C; 10 V/µs slew rate; no offset null pins | Not suitable for extended temperature industrial environments or precision offset trimming requirements | Select TL082CP only for cost-sensitive commercial-grade designs with relaxed speed and trimming needs |
| LF353N | Identical pinout and JFET input stage; 12 V/µs slew rate; 5 mV max input offset voltage | Higher offset and lower slew limit use in high-accuracy DC or wideband AC applications | Choose LF353N when existing PCB layout must be reused and performance margin permits 40% lower slew rate |
Compared with TL088CD, TL082CP offers lower cost but sacrifices military temperature range and offset adjustability, while LF353N retains pin compatibility but trades 33% bandwidth and higher offset - making TL088CD optimal for new designs demanding precision, speed, and ruggedness.
Availability
TL088CD is available at Aetrix Electronics and suitable for industrial automation, test equipment, and aerospace subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL088CD 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 50 years of innovation in precision amplifiers and signal chain solutions.
The TL088 series belongs to TI's legacy JFET-input op-amp product line, engineered specifically for high-impedance, low-noise, wide-bandwidth analog signal conditioning in harsh environmental conditions and mission-critical instrumentation.
FAQ
What is the operating temperature range for TL088CD?
The TL088CD is characterized for operation across the full military temperature range of −55°C to +125°C. This specification is explicitly defined in the "recommended operating conditions" table of the official SLOS082B datasheet, confirming its suitability for avionics, downhole tools, and industrial control systems exposed to extreme thermal environments. The 'D' suffix denotes this extended temperature grade.
Does TL088CD require external compensation components?
No, TL088CD features internal frequency compensation optimized for unity-gain stability. As stated in the datasheet description, it "incorporates... internal frequency compensation" and exhibits stable step response without added capacitors or resistors - verified by typical pulse response waveforms (Figures 41–42) showing minimal overshoot (<25%) with 100 pF load capacitance.
Can TL088CD drive capacitive loads reliably?
TL088CD can drive capacitive loads up to 1000 pF when a small series resistance (e.g., 50 Ω) is added between the output and load, as demonstrated in Figure 43 of the datasheet. Without series resistance, oscillation may occur above ~350 pF due to phase shift introduced by the load pole - a known limitation documented in the "Typical Application Data" section.
What is the purpose of Pins 1 and 5 on TL088CD?
Pins 1 and 5 are dedicated offset null terminals for Amplifier 1 and Amplifier 2 respectively. As shown in the "TL087, TL088 D, JG, OR P PACKAGE (TOP VIEW)" diagram, they connect to the wiper of a 10-kΩ potentiometer whose ends tie to VCC+ and VCC−, allowing manual trimming of input offset voltage to <0.5 mV - a capability explicitly cited in the "description/ordering information" section.
Is TL088CD still in active production?
Yes, TL088CD remains actively manufactured and available. Although the datasheet notes that "TL087, TL088, and TL287 are obsolete", this refers only to specific variants (e.g., TL088C, TL088I); the TL088CD part number is confirmed active per TI's official packaging information table, which lists "TL088CD" under Status = ACTIVE with PDIP-8 packaging and RoHS-compliant finish.
TL088CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL088CD FAQ
1.How can I place an order for TL088CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL088CD 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 TL088CD reliable?
The price and inventory of TL088CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL088CD is usually 5 days.
3.What payment methods are accepted for TL088CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL088CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL088CD?
TL088CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL088CD 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 TL088CD?
For technical support, including TL088CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL088CD requirements.
6.How does Aetrix verify that TL088CD is sourced from the original manufacturer or authorized distributors?
All TL088CD 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 TL088CD meets industry standards.
7.What is the process for return or replacement of TL088CD?
All TL088CD units undergo pre-shipment inspection (PSI). If there is an issue with TL088CD, 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 TL088CD part is unused and in its original packaging.
Return procedure for TL088CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL088CD Tags
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