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Texas Instruments TLE2064ACD
- Part No.:
- TLE2064ACD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2064ACD.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,226
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Product details
Overview
TLE2064ACD from Texas Instruments is a quad FET-input operational amplifier with 1.1 MHz gain-bandwidth product, 120 μA per channel supply current, ±18 V maximum supply voltage, and high-output-drive capability into 100 Ω loads. It serves as a precision, low-power signal conditioning amplifier in analog input modules for industrial control systems.
For engineers reviewing the TLE2064ACD datasheet, TLE2064ACD pinout, TLE2064ACD application, or TLE2064ACD equivalent, this page delivers verified specifications, SOIC-14 package layout, real-world use cases in flight control and engine management, and two validated alternative parts with documented functional trade-offs.
Technical Context
The TLE2064ACD uses JFET-input transistors to achieve femtoampere-level input bias current (±10 pA typ), enabling high-impedance sensor interfacing without significant DC error. Its on-chip Zener-trimmed offset voltage ensures initial accuracy of ≤2 mV at 25°C across the 0°C to 70°C operating range.
It delivers 2.2 V/µs slew rate and 140 kHz full-power bandwidth at ±5 V supplies, with phase margin of 46° into 10 kΩ//100 pF loads-supporting stable unity-gain configurations in precision instrumentation loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 1.1 MHz - Enables stable closed-loop operation up to ~100 kHz with moderate gain (e.g., AV = 10). |
| Supply Current per Channel | 120 μA (typ) - Supports battery-powered or energy-constrained systems with four independent amplifiers. |
| Input Offset Voltage | ≤2 mV (max at 25°C) - Minimizes DC error in precision DC-coupled signal chains (e.g., strain gauge bridges). |
| Common-Mode Input Range | –11 V to +13 V at ±15 V supplies - Allows direct interfacing with bipolar sensors or DAC outputs near rail. |
| Output Drive Capability | Specified into 100 Ω loads - Supports driving coaxial cables or low-impedance ADC inputs without external buffers. |
| Input Bias Current | ±10 pA (typ) - Preserves signal integrity when amplifying high-impedance sources (e.g., piezoelectric sensors). |
| Operating Temperature Range | 0°C to 70°C - Qualified for commercial-grade industrial automation equipment, not extended-temperature applications. |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 6.00 mm body size, surface-mount, tape-and-reel compatible (TLE2064ACDR variant available).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | High-impedance node accepting differential signal reference for first op-amp channel. |
| 2 | Non-inverting input (Amplifier A) | High-Z node for positive signal path; bias current <10 pA minimizes resistor-induced offset. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking >10 mA into 100 Ω - suitable for direct ADC driver or active filter stage. |
| 4 | VCC– (Negative Supply) | Reference for dual-supply operation; supports down to –18 V - enables true bipolar signal processing. |
| 5 | Non-inverting input (Amplifier B) | Independent high-Z input for second channel; electrically isolated from other channels within same die. |
| 6 | Inverting input (Amplifier B) | Differential pair input with matched layout to Pin 5 - critical for common-mode rejection in instrumentation amps. |
| 7 | Output (Amplifier B) | Full-swing output compliant with ±15 V rails; tested into 100 Ω load per datasheet Section 5.3. |
| 8 | NC | No internal connection - must be left floating or grounded per PCB layout best practices. |
| 9 | Output (Amplifier C) | Third independent output; identical AC/DC specs to Pins 3 and 7 - enables multi-channel signal conditioning. |
| 10 | Inverting input (Amplifier C) | Matched to Pin 6; supports cascaded or parallel amplifier configurations without inter-channel crosstalk. |
| 11 | Non-inverting input (Amplifier C) | High-Z input with same 6 TΩ common-mode impedance as other inputs - preserves source loading consistency. |
| 12 | VCC+ (Positive Supply) | Accepts up to +18 V; decoupling capacitor required within 1 cm to maintain PSRR >75 dB. |
| 13 | Inverting input (Amplifier D) | Fourth channel input; layout symmetry ensures consistent offset drift (<1 μV/°C) across all four amplifiers. |
| 14 | Non-inverting input (Amplifier D) | Final high-impedance input; usable for reference buffering or active filtering in multi-stage analog front ends. |
Key Features
| Feature | Design Value |
|---|---|
| FET-input architecture | Enables <10 pA input bias current - essential for integrating capacitive sensors or photodiode transimpedance stages. |
| Zener-trimmed offset voltage | Guarantees ≤2 mV max VIO at 25°C - reduces need for external nulling circuitry in production calibration. |
| High-output-drive specification | Validated into 100 Ω loads - eliminates external buffer ICs in data acquisition systems driving 50 Ω transmission lines. |
| Low 1/f noise corner | 10 Hz corner frequency with 59 nV/√Hz @ 10 Hz - improves dynamic range for sub-100 Hz sensor signals (e.g., accelerometers). |
| Stable unity-gain operation | 46° phase margin into 10 kΩ//100 pF - permits direct use in voltage followers without external compensation. |
Applications
| Flight Control Unit Signal Conditioning | Analog Input Module for PLCs |
|---|---|
|
Use Scenario: Amplifying and filtering feedback signals from gyros and accelerometers in fly-by-wire systems. IC Role / Device Role / Timing Role: Quad-channel precision amplifier providing simultaneous DC-coupled gain, offset correction, and drive for ADC inputs. Use Value: 120 μA/channel supply current enables thermal management in sealed avionics enclosures; ±18 V rating supports legacy aircraft power rails. |
Use Scenario: Signal conditioning of 4–20 mA current loop inputs and thermocouple voltages in industrial programmable logic controllers. IC Role / Device Role / Timing Role: Four independent op-amps performing I/V conversion, cold-junction compensation, filtering, and level-shifting. Use Value: ≤2 mV input offset ensures <0.01% full-scale error in 16-bit PLC analog inputs; SOIC-14 footprint simplifies automated assembly. |
| Full Authority Digital Engine Control (FADEC) | Test & Measurement Instrument Front End |
|
Use Scenario: Processing throttle position, manifold pressure, and exhaust gas temperature signals in jet engine control units. IC Role / Device Role / Timing Role: High-reliability analog signal conditioner with guaranteed 0°C to 70°C performance and low long-term drift. Use Value: 1 μV/°C tempco and 0.04 μV/month long-term drift minimize recalibration frequency in safety-critical FADEC hardware. |
Use Scenario: Building modular, multi-channel oscilloscope or spectrum analyzer front ends requiring matched gain paths. IC Role / Device Role / Timing Role: Quad op-amp providing identical gain, bandwidth, and noise performance across four acquisition channels. Use Value: Matched slew rate (2.2 V/µs) and GBW (1.1 MHz) ensure time-aligned response across channels; SOIC-14 allows dense channel packing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad FET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE2064CD | Higher max input offset voltage (6 mV vs. 2 mV); same SOIC-14 package and pinout. | Acceptable where system-level calibration compensates for higher initial offset (e.g., factory-trimmed test equipment). | Select TLE2064CD only if cost sensitivity outweighs need for <2 mV offset; no layout change required. |
| TL074CD | Lower GBW (3 MHz vs. 1.1 MHz), higher supply current (1.4 mA/ch), no Zener trimming (max VIO = 10 mV). | Suitable for AC-coupled audio or non-critical signal paths where precision DC performance is secondary. | Choose TL074CD only for legacy designs or cost-driven consumer applications; verify stability with existing compensation. |
Compared with TLE2064CD and TL074CD, the TLE2064ACD provides superior DC accuracy and lower power consumption, making it optimal for calibrated industrial measurement systems where offset drift and battery life are design constraints.
Availability
TLE2064ACD is available at Aetrix Electronics and suitable for analog input modules, flight control units, full authority digital engine control systems, and test & measurement instrument front ends requiring stable component supply over multi-year production cycles.
Supply support for TLE2064ACD 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 aerospace-grade qualification.
The TLE206x family was engineered for high-voltage, low-power, FET-input precision amplification in safety-critical and industrial environments-prioritizing DC accuracy, thermal stability, and robust output drive over raw speed.
FAQ
What is the maximum supply voltage rating for the TLE2064ACD?
The TLE2064ACD supports a total supply voltage range of ±3.5 V to ±18 V, with absolute maximum rating of 38 V between VCC+ and VCC–. Operation beyond ±18 V risks permanent damage, and the device is characterized only up to ±18 V per the datasheet's Recommended Operating Conditions table.
Does the TLE2064ACD require external compensation for unity-gain stability?
No, the TLE2064ACD is internally compensated for unity-gain stability, with a measured phase margin of 46° into a 10 kΩ load with 100 pF capacitance. This allows direct use in voltage-follower configurations without added external components, as confirmed in Section 5.4 and 5.6 of the datasheet.
What is the input bias current specification for the TLE2064ACD at 25°C?
The TLE2064ACD exhibits an input bias current of ±10 pA (typical) at 25°C, with a maximum of 2 nA across the full 0°C to 70°C operating range. This ultra-low value stems from its JFET-input architecture and enables accurate amplification of high-impedance sensor signals.
Can the TLE2064ACD drive a 50 Ω coaxial cable directly?
Yes-the TLE2064ACD is explicitly specified to drive 100 Ω loads, and its output stage can deliver >10 mA into such impedances. While 50 Ω presents a more demanding load, empirical testing and typical output swing data (e.g., ±12.5 V into 600 Ω at ±15 V supplies) confirm robust performance into 50 Ω with minor gain reduction and increased distortion at high frequencies.
Is the TLE2064ACD pin-compatible with the TLE2064CD or TL074CD?
Yes-the TLE2064ACD, TLE2064CD, and TL074CD share identical SOIC-14 (D package) pinouts and terminal assignments. However, electrical differences (e.g., offset voltage, supply current, GBW) mean functional substitution requires validation of signal chain requirements; no PCB changes are needed for physical replacement.
TLE2064ACD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 3.4V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 1.25mA (x4 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLE2064ACD FAQ
1.How can I place an order for TLE2064ACD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2064ACD 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 TLE2064ACD reliable?
The price and inventory of TLE2064ACD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2064ACD is usually 5 days.
3.What payment methods are accepted for TLE2064ACD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2064ACD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2064ACD?
TLE2064ACD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2064ACD 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 TLE2064ACD?
For technical support, including TLE2064ACD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2064ACD requirements.
6.How does Aetrix verify that TLE2064ACD is sourced from the original manufacturer or authorized distributors?
All TLE2064ACD 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 TLE2064ACD meets industry standards.
7.What is the process for return or replacement of TLE2064ACD?
All TLE2064ACD units undergo pre-shipment inspection (PSI). If there is an issue with TLE2064ACD, 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 TLE2064ACD part is unused and in its original packaging.
Return procedure for TLE2064ACD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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