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Texas Instruments TLE2161MP
- Part No.:
- TLE2161MP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2161MP.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:570
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Product details
Overview
TLE2161MP from Texas Instruments is a JFET-input, decompensated, high-output-drive µPower operational amplifier designed for precision analog signal conditioning in wide-temperature military applications. It delivers ±12.5 V min output swing into 600 Ω at ±15 V supplies, achieves 10 V/µs typical slew rate and 6.5 MHz typical gain-bandwidth product, and operates across –55°C to +125°C with 500 µV max input offset voltage at 25°C.
For engineers reviewing the TLE2161MP datasheet, TLE2161MP pinout, TLE2161MP application, or TLE2161MP equivalent, key selection considerations include its JFET-input low bias current (3 pA typ), high open-loop gain (280 V/mV typ), wide supply range (±3.5 V to ±18 V), and stability at closed-loop gains ≥5 - critical for precision instrumentation, sensor interfaces, and ruggedized data acquisition systems.
Technical Context
The TLE2161MP uses TI's Excalibur JFET process to combine low power (280 µA typ ICC) with high dynamic performance: decompensation enables 10 V/µs slew rate and 6.5 MHz GBW while maintaining dc precision. Its architecture supports stable operation only at closed-loop gains of 5 or greater, distinguishing it from unity-gain-stable op amps.
It features dual offset-null pins (N1/N2), rail-to-rail input common-mode range (e.g., –11 V to +13 V at ±15 V supplies), and robust output drive (±80 mA short-circuit current), making it suitable for driving moderate loads without external buffers in harsh-environment circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±3.5 V to ±18 V - supports dual-supply industrial and military systems with wide headroom margins |
| Slew Rate | 10 V/µs typ - enables accurate reproduction of fast transients in active filters and pulse amplifiers |
| Gain-Bandwidth Product | 6.5 MHz typ - sets usable bandwidth for closed-loop gain ≥5 configurations (e.g., 1.3 MHz at G = 5) |
| Input Offset Voltage | 500 µV max at 25°C - ensures sub-mV dc accuracy in precision gain stages and sensor front-ends |
| Input Bias Current | 3 pA typ - minimizes voltage error in high-impedance source applications (e.g., photodiode amps) |
| Output Drive Capability | ±12.5 V min into 600 Ω at ±15 V - drives cables, ADC drivers, or multi-stage analog chains directly |
| Operating Temperature | –55°C to +125°C - qualified for extended-range military, aerospace, and downhole electronics |
Pinout & Package
The TLE2161MP is supplied in an 8-pin ceramic DIP (JG) package with through-hole mounting and 300°C lead temperature rating for military reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal - connects to potentiometer wiper for manual input offset trimming |
| 2 | IN– | Inverting input - high-impedance JFET node; requires matched layout for CMRR optimization |
| 3 | IN+ | Non-inverting input - symmetrical high-Z node; referenced to common-mode range limits |
| 4 | VCC– | Negative supply rail - must be decoupled locally to maintain PSRR and stability |
| 5 | NC | No internal connection - left unconnected; no routing or grounding required |
| 6 | VCC+ | Positive supply rail - independent of VCC–; accepts asymmetric supplies if needed |
| 7 | OUT | Amplified output - capable of ±80 mA short-circuit current and ±12.5 V swing into 600 Ω |
| 8 | OFFSET N2 | Null adjustment terminal - connects to potentiometer end for balanced offset nulling circuit |
Key Features
| Feature | Design Value |
|---|---|
| JFET-input stage | 3 pA typical input bias current enables ultra-high-impedance sensor interfacing without loading errors |
| Excalibur process technology | 0.04 µV/month long-term offset drift ensures calibration stability over years in deployed systems |
| Decompensated architecture | Stable only at closed-loop gain ≥5 - trades unity-gain flexibility for higher slew rate and bandwidth |
| High output current capability | ±80 mA short-circuit rating allows direct driving of 600 Ω loads or cascaded stages without buffering |
| Military temperature qualification | –55°C to +125°C operation with tested parametric limits ensures reliability in extreme environments |
Applications
| Strain Gauge Signal Conditioning | High-Voltage Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level mV outputs from full-bridge strain gauges in structural health monitoring systems operating across –55°C to +125°C. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain ≥5, using offset-null pins to eliminate thermal drift-induced zero-error. Use Value: 500 µV max VIO and 6 µV/°C max αVIO ensure <1 mV total offset error over full temperature range, preserving measurement fidelity. | Use Scenario: Buffering and level-shifting high-voltage sensor outputs (e.g., piezoelectric accelerometers) into ±10 V ADC inputs in avionics data recorders. IC Role / Device Role / Timing Role: High-swing output driver with ±12.5 V capability into 600 Ω, configured as unity-gain follower with external gain-setting resistors. Use Value: Rail-compatible output swing and 10 V/µs slew rate prevent slew-induced distortion on fast transient events up to 100 kHz. |
| Programmable Gain Instrumentation Amplifier | Ruggedized Data Acquisition Front-End |
Use Scenario: Serving as the gain-setting amplifier in a three-op-amp instrumentation topology where variable gain is implemented via switched resistor networks. IC Role / Device Role / Timing Role: Fixed-gain (G = 10) differential-to-single-ended converter with offset nulling for system-level calibration. Use Value: 280 V/mV open-loop gain ensures <0.01% gain error at G = 10, while 6.5 MHz GBW supports >500 kHz small-signal bandwidth. | Use Scenario: Analog front-end for MIL-STD-1553B or ARINC 429 receiver circuits requiring EMI-hardened, wide-temp signal conditioning prior to isolation. IC Role / Device Role / Timing Role: Anti-alias filter driver and DC-coupled signal conditioner with JFET inputs immune to leakage-induced errors. Use Value: 10¹² Ω input resistance and 4 pF input capacitance enable stable 1st-order active filtering up to 40 kHz without phase degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-drive, JFET-input op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2134SM | Unity-gain stable; lower slew rate (8 V/µs); wider supply (±2.5 V to ±18 V); no offset-null pins | Preferred for G = 1–4 circuits; unsuitable for precision nulling or >5× gain with minimal phase margin | Select when unity-gain stability or simplified layout (no nulling) outweighs need for highest slew rate and offset trim |
| LMC6062AMJ | CMOS input (0.01 pA IIB); lower GBW (1.4 MHz); not decompensated; no offset-null pins; same JG package | Better for ultra-low-current sources but lacks output drive (±20 mA) and speed for demanding analog signal chains | Select when femtoampere bias current dominates design requirements and output load ≤1 kΩ |
Compared with OPA2134SM and LMC6062AMJ, the TLE2161MP uniquely combines military-temperature JFET input, decompensated high-speed operation, and user-adjustable offset nulling - making it irreplaceable in calibrated, high-fidelity, wide-temp analog paths where gain ≥5 and ±12.5 V swing are mandatory.
Availability
TLE2161MP is available at Aetrix Electronics and suitable for precision instrumentation, avionics signal conditioning, and downhole sensor electronics requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLE2161MP 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 delivering analog, embedded processing, and connectivity solutions with deep expertise in precision analog design and military-grade qualification.
The TLE2161MP belongs to TI's Excalibur JFET op amp family, engineered specifically for high-reliability, wide-temperature applications demanding low drift, high output drive, and long-term dc stability in mission-critical systems.
FAQ
What is the minimum closed-loop gain required for stable operation of the TLE2161MP?
The TLE2161MP is decompensated and requires a minimum closed-loop gain of 5 for stable operation. Attempting unity-gain or gain-of-2 configurations may result in oscillation or excessive ringing due to insufficient phase margin. This is a hard architectural constraint - not a recommendation - and must be enforced in all designs using the TLE2161MP.
Does the TLE2161MP support offset voltage nulling, and how is it implemented?
Yes, the TLE2161MP provides dedicated OFFSET N1 and OFFSET N2 pins for manual input offset nulling. A 20-kΩ potentiometer is connected between these pins, with its wiper grounded; adjusting the potentiometer balances internal input stage mismatches. This feature is essential for achieving sub-100 µV system offset in precision applications and is retained across all TLE2161M variants including the TLE2161MP.
What is the maximum output voltage swing of the TLE2161MP at ±15 V supplies into a 600 Ω load?
At ±15 V supplies, the TLE2161MP delivers a guaranteed minimum peak-to-peak output swing of ±12.5 V into a 600 Ω load, as specified in the datasheet. This corresponds to 25 VPP linear output capability - sufficient to drive standard ±10 V ADC inputs or interface with legacy analog subsystems without external level-shifting circuitry.
How does the TLE2161MP's input bias current compare to bipolar-input op amps, and why does it matter?
The TLE2161MP exhibits 3 pA typical input bias current - over six orders of magnitude lower than typical bipolar-input op amps (e.g., LM741: ~80 nA). This enables accurate amplification of signals from ultra-high-impedance sources (e.g., pH electrodes, piezoelectric sensors) without significant voltage drop across source impedance, preserving signal integrity and eliminating the need for guard traces or active guarding.
Is the TLE2161MP pin-compatible with other devices in the TLE2161 family, such as the TLE2161CP or TLE2161IP?
Yes, the TLE2161MP shares identical pinout and electrical functionality with all other TLE2161x variants (e.g., TLE2161CP, TLE2161IP, TLE2161AMJ), differing only in temperature grade, input offset voltage limits, and screening. All use the same 8-pin JG ceramic DIP package and require identical PCB footprint, layout, and external components - enabling drop-in replacement across commercial, industrial, and military versions where environmental requirements permit.
TLE2161MP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 600 µV
- Current - Supply:
- 290µA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLE2161MP FAQ
1.How can I place an order for TLE2161MP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2161MP 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 TLE2161MP reliable?
The price and inventory of TLE2161MP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2161MP is usually 5 days.
3.What payment methods are accepted for TLE2161MP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2161MP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2161MP?
TLE2161MP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2161MP 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 TLE2161MP?
For technical support, including TLE2161MP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2161MP requirements.
6.How does Aetrix verify that TLE2161MP is sourced from the original manufacturer or authorized distributors?
All TLE2161MP 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 TLE2161MP meets industry standards.
7.What is the process for return or replacement of TLE2161MP?
All TLE2161MP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2161MP, 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 TLE2161MP part is unused and in its original packaging.
Return procedure for TLE2161MP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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