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Texas Instruments LM6142BIN/NOPB
- Part No.:
- LM6142BIN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM6142BIN/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,343
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Product details
Overview
LM6142BIN/NOPB from Texas Instruments is a dual-channel rail-to-rail input-output operational amplifier optimized for low-voltage, low-power precision signal conditioning. It delivers 17MHz gain-bandwidth, 30V/μs slew rate, 650μA per amplifier quiescent current, rail-to-rail input range (−0.25V to 5.25V at 5V supply), and rail-to-rail output swing - enabling high dynamic range in battery-operated instrumentation and depth sounders.
For engineers reviewing the LM6142BIN/NOPB datasheet, LM6142BIN/NOPB pinout, LM6142BIN/NOPB application, or LM6142BIN/NOPB equivalent, key selection criteria include its guaranteed rail-to-rail CMVR at 2.7V–24V supply, 107dB CMRR, 87dB PSRR, 108dB open-loop gain with 10kΩ load, and compatibility with capacitive loads without external compensation.
Technical Context
The LM6142BIN/NOPB employs a patented dual-input-stage architecture combining NPN and PNP differential pairs to achieve true rail-to-rail input common-mode voltage range beyond the supply rails (−0.25V to +0.25V beyond V−/V+). Its slew-boosted output stage enables 30V/μs slew rate while maintaining stability into ≥100pF capacitive loads - eliminating need for isolation resistors in ADC buffer or sensor interface configurations.
This device operates across 2.7V–24V single-supply or ±1.35V–±12V dual-supply conditions, with specified performance over −40°C to +85°C ambient. At 2.7V supply, it retains 9MHz GBW and 36° phase margin; at 24V, GBW reaches 18MHz and CMRR improves to 114dB - supporting wide-range industrial sensing and portable medical front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 17MHz (typ) at 50kHz - enables stable unity-gain operation up to ~10MHz with >36° phase margin, suitable for anti-aliasing filters and active sensor interfaces. |
| Slew rate | 30V/μs - supports fast transient response in pulse amplification and multiplexed data acquisition without distortion. |
| Input CMVR | −0.25V to 5.25V at VS = 5V - accepts signals below ground or above V+, eliminating level-shifting in single-supply systems. |
| Output swing | Within 30mV of rails (RL = 100kΩ) - maximizes usable dynamic range in 3.3V or 5V ADC driver applications. |
| Quiescent current | 650μA per amplifier - enables >100-hour battery life in handheld instruments using two AA cells. |
| CMRR | 107dB (typ) - rejects common-mode noise in noisy industrial environments, critical for precision bridge sensor amplification. |
| PSRR | 87dB (typ) - maintains accuracy under varying supply conditions, e.g., during RF transmission bursts in wireless sensors. |
Pinout & Package
LM6142BIN/NOPB is housed in an 8-pin PDIP (Plastic Dual In-line Package) with 9.81mm × 6.35mm body size, rated for through-hole mounting and manual prototyping. Thermal resistance RθJA is 84.45°C/W, supporting operation up to +85°C ambient without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers rail-to-rail buffered signal; capable of sourcing/sinking ≥10mA into 2kΩ load. |
| 2 (IN− A) | Inverting input A | Differential node for feedback network; biased by internal PNP/NPN input stage across full supply range. |
| 3 (IN+ A) | Non-inverting input A | Accepts signals from −0.25V to V+ + 0.25V; high-impedance (126MΩ) node for sensor interfacing. |
| 4 (V−) | Negative supply | Ground reference for single-supply operation or negative rail in dual-supply configuration. |
| 5 (IN+ B) | Non-inverting input B | Independent high-Z input for second channel; identical CMVR and bias current specs as Pin 3. |
| 6 (IN− B) | Inverting input B | Second channel feedback node; fully isolated from Channel A (130dB amp-to-amp isolation). |
| 7 (OUT B) | Amplifier B output | Independent rail-to-rail output; matches Pin 1 performance including capacitive drive capability. |
| 8 (V+) | Positive supply | Accepts 2.7V–24V; internal regulation ensures stable biasing across full voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input CMVR | Extends 0.25V beyond both supply rails - eliminates input clamping diodes and external level shifters in single-supply designs. |
| Rail-to-rail output swing | Within 30mV of V+ and V− at light loads - preserves >99% of theoretical dynamic range for 12-bit+ ADC interfacing. |
| Capacitive load drive | Stable into ≥100pF without series resistor - simplifies layout in multiplexed sensor arrays and long-trace PCB routing. |
| Low quiescent current | 650μA per amplifier at 5V - enables dual-opamp signal chain in sub-1mA total system standby power budget. |
| High CMRR & PSRR | 107dB CMRR / 87dB PSRR - maintains DC accuracy in battery-powered equipment subject to supply ripple and EMI. |
Applications
| Battery-Operated Instrumentation | Depth Sounders / Fish Finders |
|---|---|
Use Scenario: Portable multimeter front-end amplifying mV-level thermocouple or shunt voltage signals under variable battery voltage (3.0–4.2V). IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail input accepting signals near ground and rail, and rail-to-rail output maximizing ADC utilization. Use Value: Eliminates need for charge-pump rails or level shifters, reducing BOM count and power loss while maintaining 16-bit effective resolution. |
Use Scenario: Echo-pulse amplification in handheld sonar units powered by alkaline batteries, requiring wide dynamic range and low noise. IC Role / Device Role / Timing Role: Low-noise transducer driver and echo preamplifier with high slew rate to preserve pulse fidelity and wide GBW for time-of-flight filtering. Use Value: 30V/μs slew rate captures microsecond-scale return pulses without distortion; 17MHz GBW supports sharp bandpass filtering around 200–500kHz carrier frequencies. |
| Barcode Scanners | Rail-to-Rail Instrumentation Amps |
Use Scenario: Photodiode current-to-voltage conversion and signal conditioning in compact laser barcode readers with tight power budgets. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) followed by gain stage, leveraging rail-to-rail output to drive ADC directly from 3.3V supply. Use Value: 650μA quiescent current extends scan session duration; 16nV/√Hz input voltage noise ensures reliable decoding of low-contrast barcodes. |
Use Scenario: Building 3-opamp instrumentation amplifiers for single-supply industrial sensors (e.g., strain gauges, pressure transducers) operating from 5V rails. IC Role / Device Role / Timing Role: Dual-channel buffer for differential inputs and gain-setting stage - exploiting matched channels and 130dB inter-amplifier isolation. Use Value: Enables >100dB CMR without precision resistor networks; rail-to-rail I/O allows full sensor signal swing without clipping at supply extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Lower GBW (6.4MHz), higher IQ (550μA), narrower CMVR (to V− + 0.1V / V+ − 0.1V) | Less suitable for high-speed pulse amplification or wide-VS sensor interfaces | Prefer TLV2462IDR only when cost sensitivity outweighs speed and input range requirements |
| OPA2333AIDR | Zero-drift architecture, lower VOS (2μV), but lower GBW (350kHz) and no rail-to-rail input | Better for ultra-low-offset DC measurement, unsuitable for AC-coupled or wide-dynamic-range apps | Select OPA2333AIDR only for precision DC sensor bridges where offset drift dominates error budget |
Compared with TLV2462IDR and OPA2333AIDR, LM6142BIN/NOPB uniquely balances 17MHz bandwidth, true rail-to-rail input/output, and 650μA power - making it optimal for battery-powered signal chains demanding both speed and supply flexibility without sacrificing dynamic range.
Availability
LM6142BIN/NOPB is available at Aetrix Electronics and suitable for battery-operated instrumentation, depth sounders/fish finders, and barcode scanners requiring stable component supply across extended production lifecycles.
Supply support for LM6142BIN/NOPB 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 expertise in precision amplifiers and power-efficient signal conditioning ICs.
LM6142BIN/NOPB belongs to TI's LM614x family of rail-to-rail input-output op amps, engineered specifically for portable and low-voltage industrial systems where supply headroom is constrained and dynamic range must be preserved.
FAQ
What is the minimum supply voltage for reliable operation of LM6142BIN/NOPB?
The LM6142BIN/NOPB has a specified minimum supply voltage of 2.7V per the latest revision (JUNE 2026) of its datasheet. Operation below 2.7V is not characterized or guaranteed - unlike earlier die versions that supported 1.8V. At 2.7V, LM6142BIN/NOPB maintains 9MHz GBW, 36° phase margin, and rail-to-rail input functionality, making it viable for Li-ion or two-AA-cell systems.
Does LM6142BIN/NOPB support capacitive loads without external compensation?
Yes, LM6142BIN/NOPB is designed to drive ≥100pF capacitive loads stably without requiring series isolation resistors. This capability stems from its slew-boosted output architecture and internal compensation, validated across all supply voltages (2.7V–24V) and temperatures (−40°C to +85°C). It is widely used in ADC input buffering and multiplexed sensor interfaces where trace capacitance exceeds 50pF.
What is the input common-mode voltage range of LM6142BIN/NOPB at 5V supply?
At VS = 5V (V+ = 5V, V− = 0V), the LM6142BIN/NOPB guarantees an input common-mode voltage range of −0.25V to +5.25V - extending 0.25V beyond both supply rails. This "beyond-the-rails" CMVR eliminates input clamping concerns in single-supply systems and enables direct interfacing with signals referenced to split grounds or external references.
How does the thermal performance of LM6142BIN/NOPB compare between SOIC and PDIP packages?
LM6142BIN/NOPB in PDIP (P package) exhibits RθJA = 84.45°C/W, significantly better than the SOIC (D package) version at 127.1°C/W. This 33% lower junction-to-ambient thermal resistance makes the PDIP variant more suitable for higher ambient temperature environments or higher quiescent current operation without heatsinking - especially relevant for LM6142BIN/NOPB's 650μA per amplifier draw at elevated supply voltages.
Is LM6142BIN/NOPB pin-compatible with other devices in the LM614x family?
LM6142BIN/NOPB shares identical 8-pin PDIP pinout with LM6142AI and LM6142BI variants, differing only in initial offset voltage grade (B-grade = 2.5mV max vs A-grade = 1mV max). It is not pin-compatible with quad-channel LM6144 or SOIC-packaged versions due to different package footprints and pin counts - confirming strict mechanical and electrical uniqueness within its specific orderable part number.
LM6142BIN/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 25V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 174 nA
- Voltage - Input Offset:
- 1.3 mV
- Current - Supply:
- 750µA (x2 Channels)
- Current - Output / Channel:
- 24 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 24 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM6142BIN/NOPB FAQ
1.How can I place an order for LM6142BIN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6142BIN/NOPB 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 LM6142BIN/NOPB reliable?
The price and inventory of LM6142BIN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6142BIN/NOPB is usually 5 days.
3.What payment methods are accepted for LM6142BIN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6142BIN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6142BIN/NOPB?
LM6142BIN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6142BIN/NOPB 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 LM6142BIN/NOPB?
For technical support, including LM6142BIN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6142BIN/NOPB requirements.
6.How does Aetrix verify that LM6142BIN/NOPB is sourced from the original manufacturer or authorized distributors?
All LM6142BIN/NOPB 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 LM6142BIN/NOPB meets industry standards.
7.What is the process for return or replacement of LM6142BIN/NOPB?
All LM6142BIN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM6142BIN/NOPB, 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 LM6142BIN/NOPB part is unused and in its original packaging.
Return procedure for LM6142BIN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6142BIN/NOPB Tags
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