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Texas Instruments TLE2161AID
- Part No.:
- TLE2161AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2161AID.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:170
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Product details
Overview
TLE2161AID from Texas Instruments is a JFET-input, decompensated precision operational amplifier optimized for high-output-drive, low-power, and wide supply voltage operation (±3.5 V to ±18 V). It delivers ±2.5 V min output swing into 100 Ω at ±5 V supplies and ±12.5 V min into 600 Ω at ±15 V, with 10 V/µs typical slew rate, 6.5 MHz gain-bandwidth product, and 500 µV max input offset voltage over –40°C to +85°C.
For engineers reviewing the TLE2161AID datasheet, TLE2161AID pinout, TLE2161AID application, or TLE2161AID equivalent, key selection criteria include its JFET-input ultra-low bias current (5 pA typ), long-term offset drift (0.04 µV/month), stable performance across military-grade temperature range, and compatibility with closed-loop gains ≥5 in high-fidelity signal conditioning and precision sensor interfaces.
Technical Context
The TLE2161AID uses TI's Excalibur JFET process to achieve parametric stability over time and temperature while maintaining fast slew rates and high open-loop gain (280 V/mV typ). Its decompensated architecture requires minimum closed-loop gain of 5 for stability, enabling higher bandwidth than unity-gain-stable op-amps of similar class.
It features dual offset-null pins (N1/N2) for precise DC calibration, rail-to-rail input common-mode range (–11 V to +13 V at ±15 V supplies), and robust output drive capability (±80 mA short-circuit current). The device maintains low noise (43 nV/√Hz at 1 kHz) and high CMRR (72 dB min) under full operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±3.5 V to ±18 V - supports single-supply or split-rail systems including industrial ±5 V and ±15 V legacy designs. |
| Input Offset Voltage (max) | 500 µV at –40°C to +85°C - enables high-accuracy DC-coupled amplification without frequent recalibration. |
| Slew Rate (typ) | 10 V/µs - allows faithful reproduction of fast transients in active filters and pulse amplifiers. |
| Gain-Bandwidth Product (typ) | 6.5 MHz - supports stable closed-loop gain ≥5 up to ~1.3 MHz, suitable for anti-aliasing and reconstruction filters. |
| Input Bias Current (typ) | 5 pA - minimizes voltage error in high-impedance sensor front-ends (e.g., piezoelectric, photodiode). |
| Output Drive (min) | ±2.5 V into 100 Ω at ±5 V - drives low-impedance loads directly, reducing need for external buffer stages. |
| Long-Term Offset Drift | 0.04 µV/month - ensures multi-year calibration stability in metrology and test equipment. |
Pinout & Package
The TLE2161AID is housed in an 8-pin SOIC (D) package with exposed pad for thermal enhancement, rated for operation from –40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal for fine-tuning input offset voltage via external potentiometer. |
| 2 | IN– | Inverting input - high-impedance JFET node with 10¹² Ω input resistance. |
| 3 | IN+ | Non-inverting input - matched to IN– for optimal common-mode rejection. |
| 4 | VCC– | Negative supply rail connection - supports dual-supply operation down to –19 V absolute max. |
| 5 | NC | No internal connection - electrically isolated; no routing required on PCB. |
| 6 | VCC+ | Positive supply rail connection - accepts up to +19 V absolute max. |
| 7 | OUT | Amplified output - capable of ±80 mA short-circuit current and ±12.5 V swing into 600 Ω. |
| 8 | OFFSET N2 | Second null adjustment terminal - used with Pin 1 for symmetric offset trimming. |
Key Features
| Feature | Design Value |
|---|---|
| JFET Input Stage | 5 pA typical input bias current enables use with >100 MΩ source impedances without significant error. |
| High Output Drive | Delivers ±12.5 V into 600 Ω at ±15 V supplies - eliminates need for discrete output buffers in data acquisition front-ends. |
| Low Power Consumption | 280 µA typical supply current allows battery-powered precision instrumentation with extended runtime. |
| Offset Null Capability | Dual null pins (1 & 8) support sub-100 µV system-level offset calibration using a single 10 kΩ potentiometer. |
| Parametric Stability | 0.04 µV/month long-term drift and 6 µV/°C tempco ensure calibration integrity over years in unattended systems. |
Applications
| Strain Gauge Signal Conditioning | High-Voltage Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying low-level mV-range differential signals from Wheatstone bridge strain gauges in structural health monitoring systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with programmable gain ≥5, leveraging JFET inputs to avoid bridge imbalance errors. Use Value: 500 µV max offset and 0.04 µV/month drift maintain measurement accuracy over multi-year deployments without field recalibration. | Use Scenario: Buffering and level-shifting analog outputs from 16-bit DACs driving ±10 V actuator control circuits in industrial PLC modules. IC Role / Device Role / Timing Role: High-output-drive voltage follower with rail-compatible swing, ensuring full-scale fidelity into 600 Ω loads. Use Value: ±12.5 V min output into 600 Ω at ±15 V supplies guarantees full DAC dynamic range delivery without clipping or external buffering. |
| Precision Photodiode Transimpedance Amplifier | Active Filter for Sensor Signal Chain |
Use Scenario: Converting nanoamp-level photocurrents from scientific-grade photodiodes into stable voltage outputs for spectroscopy systems. IC Role / Device Role / Timing Role: Low-noise, low-bias-current transimpedance amplifier with decompensated bandwidth optimized for 1–5 MHz filter response. Use Value: 5 pA input bias current prevents dark-current-induced baseline shift; 10 V/µs slew rate preserves pulse fidelity in time-resolved detection. | Use Scenario: Implementing 4th-order Bessel low-pass filtering in medical ECG signal paths where phase linearity and settling speed are critical. IC Role / Device Role / Timing Role: High-slew-rate, low-distortion op-amp in multiple feedback (MFB) topology with closed-loop gain ≥5 per stage. Use Value: 6.5 MHz GBW and 70° phase margin enable stable 100 kHz filter cutoffs with <10 µs 0.01% settling - meeting IEC 60601 timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2134PA | Unity-gain stable, lower slew rate (20 V/µs), higher supply current (4 mA), no offset-null pins. | Preferred for audio and unity-gain configurations; unsuitable for high-gain, low-power, or offset-critical DC applications. | Select when unity-gain stability is mandatory and power budget allows >10× higher ICC. |
| TL071CP | Higher input offset (10 mV max), no offset-null capability, lower GBW (3 MHz), wider offset drift (18 µV/°C). | Cost-optimized general-purpose use; not recommended for precision DC or long-term calibration stability. | Choose only for non-critical AC-coupled signal paths where offset and drift are not design constraints. |
Compared with OPA2134PA and TL071CP, the TLE2161AID uniquely combines JFET-input ultra-low bias current, factory-trimmed offset stability, dual null pins for system-level calibration, and decompensated bandwidth-making it irreplaceable in battery-powered, high-impedance, long-life precision instrumentation where offset drift and power are co-constrained.
Availability
TLE2161AID is available at Aetrix Electronics and suitable for precision sensor interfaces, industrial data acquisition systems, and battery-powered test equipment requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLE2161AID 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 innovation.
The TLE2161AID belongs to TI's Excalibur JFET-input op-amp family, engineered for applications demanding ultra-low input current, exceptional DC precision, and robust output drive in harsh or long-lifecycle environments.
FAQ
What is the maximum operating temperature range for the TLE2161AID?
The TLE2161AID is characterized for operation from –40°C to +85°C, as indicated by the "I" suffix in its part number. This industrial temperature grade ensures reliable performance in demanding environments such as factory automation controllers and outdoor instrumentation enclosures without derating.
Does the TLE2161AID require external compensation components?
No, the TLE2161AID is internally decompensated and does not require external compensation. However, it is stable only at closed-loop gains of 5 or greater. Using it at unity gain or gain-of-2 will cause oscillation; always verify loop gain and phase margin in the target circuit configuration.
Can the TLE2161AID drive a 100 Ω load effectively?
Yes - the TLE2161AID delivers ±2.5 V minimum peak-to-peak output voltage into a 100 Ω load at ±5 V supplies, and ±12.5 V into 600 Ω at ±15 V. Its ±80 mA short-circuit current rating confirms robust low-impedance drive capability without thermal shutdown under continuous operation.
How is offset voltage adjusted on the TLE2161AID?
Offset voltage is trimmed using Pins 1 (OFFSET N1) and 8 (OFFSET N2) with a 10 kΩ potentiometer connected between them and VCC–. The wiper connects to VCC+ to inject balancing current into the input stage, enabling sub-100 µV system-level nulling - a capability absent in most modern precision op-amps.
Is the TLE2161AID pin-compatible with other devices in the TLE2161 family?
Yes - all TLE2161 variants (TLE2161, TLE2161A, TLE2161B) share identical 8-pin SOIC (D) pinout and electrical interface. The "A" grade offers tighter initial offset (500 µV max vs. 1.5 mV for standard TLE2161), but mechanical and functional compatibility is maintained across C/I/M suffixes in same package types.
TLE2161AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 6.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 290µA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2161AID FAQ
1.How can I place an order for TLE2161AID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2161AID 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 TLE2161AID reliable?
The price and inventory of TLE2161AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2161AID is usually 5 days.
3.What payment methods are accepted for TLE2161AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2161AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2161AID?
TLE2161AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2161AID 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 TLE2161AID?
For technical support, including TLE2161AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2161AID requirements.
6.How does Aetrix verify that TLE2161AID is sourced from the original manufacturer or authorized distributors?
All TLE2161AID 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 TLE2161AID meets industry standards.
7.What is the process for return or replacement of TLE2161AID?
All TLE2161AID units undergo pre-shipment inspection (PSI). If there is an issue with TLE2161AID, 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 TLE2161AID part is unused and in its original packaging.
Return procedure for TLE2161AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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