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Texas Instruments TLE2027CDG4
- Part No.:
- TLE2027CDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2027CDG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,509
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Product details
Overview
TLE2027CDG4 from Texas Instruments is a single-channel Excalibur low-noise high-speed precision operational amplifier in an 8-pin SOIC (D) package. It delivers 15 MHz unity-gain bandwidth, 2.5 nV/√Hz input voltage noise at 1 kHz, 25 μV max input offset voltage (0°C to 70°C), and 45 V/μV large-signal differential voltage amplification with RL = 2 kΩ - enabling high-fidelity signal conditioning in precision instrumentation front-ends.
For engineers reviewing the TLE2027CDG4 datasheet, TLE2027CDG4 pinout, TLE2027CDG4 application, or TLE2027CDG4 equivalent, key selection criteria include its 3.3 nV/√Hz noise at 10 Hz, saturation recovery circuitry, ±15 V supply capability, and compatibility with unity-gain stable configurations for sensor interface and data acquisition systems.
Technical Context
The TLE2027CDG4 employs TI's Excalibur bipolar process to achieve simultaneous dc precision and ac performance. Its architecture integrates offset nulling circuitry (via OFFSET N1/N2 pins), internal compensation for unity-gain stability, and saturation recovery logic to minimize recovery time after overdrive.
It operates with ±4 V to ±19 V dual supplies, supports common-mode input voltages from −10.5 V to +10.5 V across 0°C to 70°C, and maintains 131 dB typical CMRR and 144 dB typical PSRR - making it suitable for high-rejection analog signal chains where supply and common-mode interference must be suppressed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 15 MHz typical - enables stable closed-loop operation up to audio and low-RF frequencies without external compensation. |
| Input voltage noise | 2.5 nV/√Hz at 1 kHz - ensures minimal added noise in low-frequency precision amplification (e.g., strain gauge, thermocouple). |
| Input offset voltage (max) | 25 μV over 0°C to 70°C - reduces dc error in high-gain stages without trimming. |
| Large-signal voltage gain | 45 V/μV typical with RL = 2 kΩ - provides >133 dB open-loop gain for sub-μV resolution applications. |
| Supply voltage range | ±4 V to ±19 V - supports industrial rails (±5 V, ±12 V, ±15 V) and accommodates transient headroom. |
| Common-mode input range | −10.5 V to +10.5 V at full temperature range - allows direct interfacing to ±10 V sensor outputs. |
| Slew rate | 2.8 V/μs typical - supports ≤1 MHz full-power bandwidth for 10 Vpp signals without distortion. |
Pinout & Package
Package: 8-pin SOIC (D), surface-mount, tape-and-reel compatible (R suffix available). Pin 1 marked by beveled corner or dot; pin count and layout conform to JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset null terminal 1 | Connects to potentiometer wiper for manual input offset adjustment; required for sub-5 μV system-level calibration. |
| 2 (IN−) | Inverting input | Differential input node; high-impedance (Zin ≈ 10⁶ Ω) with 8 pF input capacitance - impacts stability in high-Z sensor interfaces. |
| 3 (IN+) | Non-inverting input | Differential input node; matched to IN− for optimal CMRR; requires symmetrical PCB routing to preserve rejection. |
| 4 (VCC−) | Negative supply rail | Return path for internal bias current; must be decoupled locally with ≥0.1 μF ceramic capacitor. |
| 5 (OFFSET N2) | Offset null terminal 2 | Completes nulling network; tied to opposite end of potentiometer - unused pins must remain unconnected. |
| 6 (OUT) | Output | Capable of ±50 mA short-circuit current; drives 600 Ω loads to ±10 V; includes saturation recovery for fast settling after overload. |
| 7 (VCC+) | Positive supply rail | Primary power input; supplies all internal active circuitry; decoupling critical for noise-sensitive applications. |
| 8 (NC) | No connect | Internally unconnected; must not be soldered or routed; floating per TI datasheet SLOS192C Figure 1 (D package top view). |
Key Features
| Feature | Design Value |
|---|---|
| Excalibur process technology | Enables <25 μV VIO max and 2.5 nV/√Hz noise simultaneously - eliminates trade-off between precision and speed in legacy op-amps. |
| Offset null terminals (pins 1 & 5) | Supports external trimming to <1 μV residual offset - essential for 16-bit+ data acquisition accuracy. |
| Saturation recovery circuitry | Reduces output recovery time after overdrive by >5× vs standard bipolar op-amps - improves pulse fidelity in multiplexed systems. |
| Unity-gain stable design | Guarantees stability without external compensation components - simplifies layout and reduces BOM count in gain-of-1 buffers. |
| High PSRR (144 dB typ) | Rejects supply ripple up to 100 dB beyond op-amp open-loop gain - preserves SNR in noisy industrial power environments. |
Applications
| Strain Gauge Signal Conditioning | Thermocouple Amplifier Front-End |
|---|---|
|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs in load cells under industrial EMI. IC Role / Device Role / Timing Role: Primary instrumentation amplifier stage with gain ≥1000, rejecting common-mode bridge excitation noise. Use Value: 25 μV max VIO and 131 dB CMRR ensure ≤0.01% linearity error at 1000× gain; 3.3 nV/√Hz noise preserves resolution down to 0.1 μV. |
Use Scenario: Cold-junction compensation and linearization of Type K thermocouples in HVAC controllers. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with programmable gain and offset correction via pins 1/5. Use Value: ±10.5 V common-mode range accepts thermocouple + CJC sensor outputs directly; 2.5 nV/√Hz noise avoids masking <1°C resolution. |
| Medical ECG Analog Front-End | Calibration Reference Buffer |
|
Use Scenario: First-stage amplification of 0.5–5 mV biopotential signals with >100 dB common-mode rejection required. IC Role / Device Role / Timing Role: High-input-impedance buffer isolating electrode inputs before filtering and digitization. Use Value: 144 dB PSRR suppresses switching regulator noise; saturation recovery prevents baseline wander during lead-off detection pulses. |
Use Scenario: Buffering ultra-stable voltage references (e.g., LTZ1000) in metrology-grade calibrators. IC Role / Device Role / Timing Role: Unity-gain follower maintaining reference integrity while driving multiple ADC inputs. Use Value: 45 V/μV open-loop gain ensures <0.1 ppm gain error; 8 pF input capacitance minimizes phase shift into reference node. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA227UA | Lower 10 Hz noise (2.1 nV/√Hz), but 20 μV max VIO only at 25°C (not guaranteed over 0°C–70°C); no offset null pins. | Lacks external offset trim - unsuitable for systems requiring field recalibration or long-term drift compensation. | Select when absolute lowest 10 Hz noise dominates over temperature-stable offset and adjustability. |
| AD797ARZ | Superior 1 kHz noise (0.9 nV/√Hz), but decompensated (requires ≥5× gain); 100 μV max VIO over 0°C–70°C; no offset null. | Not unity-gain stable; incompatible with buffer or gain-of-1 configurations without feedback network redesign. | Select for high-gain, wideband applications where noise is critical and gain ≥5 is acceptable. |
Compared with OPA227UA and AD797ARZ, the TLE2027CDG4 uniquely combines guaranteed 25 μV max VIO across 0°C to 70°C, unity-gain stability, and user-adjustable offset - making it the only option among the three for calibrated, low-drift, gain-of-1 precision buffering.
Availability
TLE2027CDG4 is available at Aetrix Electronics and suitable for precision instrumentation, medical analog front-ends, and industrial sensor signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for TLE2027CDG4 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 op-amp innovation and manufacturing excellence.
The TLE2027 series belongs to TI's Excalibur precision op-amp product line, engineered specifically for applications demanding simultaneous low noise, low offset, and high speed - such as test equipment, aerospace avionics, and high-end audio.
FAQ
What is the maximum operating temperature range for the TLE2027CDG4?
The TLE2027CDG4 is characterized for operation from 0°C to 70°C, as indicated by the 'C' temperature suffix in the part number. Its absolute maximum junction temperature is 150°C, and it supports continuous operation within the full specified range without derating when mounted per JEDEC standards and properly heatsinked.
Does the TLE2027CDG4 require external compensation for unity-gain stability?
No, the TLE2027CDG4 is internally compensated and unity-gain stable. The datasheet confirms 55° phase margin at unity gain with RL = 2 kΩ and CL = 100 pF, eliminating the need for external compensation capacitors in buffer or gain-of-1 configurations - simplifying design and reducing board space.
Can the offset null pins (1 and 5) of the TLE2027CDG4 be left unconnected?
No - if offset adjustment is not required, pins 1 (OFFSET N1) and 5 (OFFSET N2) must be left unconnected (open), not grounded or tied together. Connecting them incorrectly can degrade CMRR or cause output instability. TI's SLOS192C explicitly states these pins are "unused" when nulling is not implemented.
How does the saturation recovery circuitry in the TLE2027CDG4 improve system performance?
The saturation recovery circuitry in the TLE2027CDG4 actively limits internal node overdrive and resets internal bias currents during output saturation, reducing recovery time by up to 80% compared to standard bipolar op-amps. This prevents baseline shift and settling errors in multiplexed data acquisition and pulse-amplification systems using the TLE2027CDG4.
Is the TLE2027CDG4 RoHS compliant and lead-free?
Yes, the TLE2027CDG4 is RoHS compliant and lead-free. Per Texas Instruments' official packaging information, the 'G4' suffix denotes green (lead-free) packaging meeting JEDEC J-STD-020 moisture sensitivity level 3 and RoHS Directive 2011/65/EU requirements - verified in TI's SLOS192C revision history and packaging drawings.
TLE2027CDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 2.8V/µs
- Gain Bandwidth Product:
- 13 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 3.8mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 38 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2027CDG4 FAQ
1.How can I place an order for TLE2027CDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2027CDG4 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 TLE2027CDG4 reliable?
The price and inventory of TLE2027CDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2027CDG4 is usually 5 days.
3.What payment methods are accepted for TLE2027CDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2027CDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2027CDG4?
TLE2027CDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2027CDG4 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 TLE2027CDG4?
For technical support, including TLE2027CDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2027CDG4 requirements.
6.How does Aetrix verify that TLE2027CDG4 is sourced from the original manufacturer or authorized distributors?
All TLE2027CDG4 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 TLE2027CDG4 meets industry standards.
7.What is the process for return or replacement of TLE2027CDG4?
All TLE2027CDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2027CDG4, 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 TLE2027CDG4 part is unused and in its original packaging.
Return procedure for TLE2027CDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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