My Inquiry
My Account
Texas Instruments LM6142AIM/NOPB
- Part No.:
- LM6142AIM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6142AIM/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,590
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM6142AIM/NOPB from Texas Instruments is a dual-channel rail-to-rail input/output operational amplifier optimized for low-voltage, battery-powered instrumentation. It delivers 17 MHz gain-bandwidth, 30 V/μs slew rate, 650 μA per amplifier quiescent current, ±4000 V HBM ESD rating, and operates from 2.7 V to 24 V supply. It enables high-fidelity signal conditioning in depth sounders and barcode scanners where supply headroom and dynamic range are constrained.
For engineers reviewing the LM6142AIM/NOPB datasheet, LM6142AIM/NOPB pinout, LM6142AIM/NOPB application, or LM6142AIM/NOPB equivalent, key selection criteria include rail-to-rail CMVR (−0.25 V to 5.25 V at 5 V), output swing within 30 mV of rails (RL = 100 kΩ), 107 dB CMRR, 87 dB PSRR, and verified capacitive-load drive stability-critical for ADC buffering and single-supply sensor interfaces.
Technical Context
The LM6142AIM/NOPB employs a patented dual-input-stage architecture (NPN + PNP) enabling true rail-to-rail input common-mode voltage range beyond the supply rails (−0.25 V to +5.25 V at VS = 5 V), eliminating input clipping in single-supply systems. Its slew-boosted output stage achieves 30 V/μs slew rate while maintaining stability into ≥100 pF loads without external compensation.
It features internally trimmed input offset voltage (1 mV typ, 2.2 mV max over −40°C to +85°C), 126 MΩ common-mode input resistance, and open-loop gain of 108 dB (RL = 10 kΩ). The device is specified across 2.7 V–24 V supplies with thermal metrics validated for SOIC-8 (RθJA = 127.1°C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 17 MHz at 50 kHz (typ); supports stable closed-loop operation up to ~10 MHz with unity-gain compensation. |
| Slew rate | 30 V/μs (typ); enables full-scale step response in <330 ns for 10 V output swing-critical for pulse amplification. |
| Input CMVR | −0.25 V to 5.25 V at VS = 5 V; accepts signals 0.25 V below negative rail and 0.25 V above positive rail-no level-shifting needed. |
| Output swing | Within 30 mV of rails (RL = 100 kΩ); preserves >99% of available dynamic range at low supply voltages. |
| Quiescent current | 650 μA per amplifier (typ); enables >100-hour battery life in 3.3 V, 10 μA-sleep microcontroller systems. |
| CMRR | 107 dB (typ); rejects >99.999% of common-mode interference-essential for precision sensor front-ends. |
| PSRR | 87 dB (typ); maintains DC accuracy despite ±100 mV supply ripple-key for noisy embedded power rails. |
Pinout & Package
LM6142AIM/NOPB is housed in an 8-pin SOIC (D package) with 4.90 mm × 3.91 mm body size and standard JEDEC MS-012AC footprint. Thermal resistance RθJA = 127.1°C/W ensures reliable operation at ambient temperatures up to +85°C under typical PCB layout conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Delivers rail-to-rail voltage swing; drives 100 kΩ load to within 30 mV of either supply rail. |
| 2 (−IN A) | Inverting input A | High-impedance node (126 MΩ); accepts common-mode signals from −0.25 V to +5.25 V at 5 V supply. |
| 3 (+IN A) | Non-inverting input A | Matches −IN A in bias current (250 nA typ); enables precision differential sensing with minimal offset drift. |
| 4 (V−) | Negative supply | Ground reference for single-supply operation; supports true 0 V input when tied to system GND. |
| 5 (+IN B) | Non-inverting input B | Electrically isolated from Channel A; enables independent dual-channel signal paths with >130 dB amp-to-amp isolation. |
| 6 (−IN B) | Inverting input B | Identical specs to Pin 2; allows matched dual instrumentation amplifier configurations without inter-channel crosstalk. |
| 7 (OUT B) | Amplifier B output | Functionally identical to Pin 1; supports simultaneous dual-signal processing in compact layouts. |
| 8 (V+) | Positive supply | Accepts 2.7 V–24 V; internal regulation ensures stable biasing across full voltage range and temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input CMVR | Extends 0.25 V beyond both supply rails-eliminates need for external level shifters in 0–5 V sensor interfaces. |
| Rail-to-rail output swing | Delivers >99% of supply voltage range at 100 kΩ load-maximizes SNR in low-voltage ADC drivers. |
| Slew-boosted architecture | Enables 30 V/μs slew rate without sacrificing stability into 100 pF capacitive loads-removes need for isolation resistors. |
| Low quiescent current | 650 μA per amplifier at 5 V-supports always-on analog monitoring in energy-harvesting and portable medical devices. |
| High CMRR & PSRR | 107 dB CMRR and 87 dB PSRR maintain DC accuracy in electrically noisy industrial environments with shared ground planes. |
Applications
| Depth Sounder Signal Conditioning | Barcode Scanner Analog Front-End |
|---|---|
Use Scenario: Amplifies weak, high-frequency echo return signals (20–200 kHz) from transducers in marine depth sounders operating on 3.3 V lithium batteries. IC Role / Device Role / Timing Role: Dual-channel op amp configured as transducer driver + echo amplifier; provides gain, filtering, and rail-to-rail output swing to maximize ADC utilization. Use Value: 17 MHz GBW enables clean amplification of fast rise-time echoes; 30 V/μs slew rate preserves pulse fidelity; 650 μA IQ extends battery life beyond 12 hours per charge. | Use Scenario: Buffers analog photodiode current from laser scan engines in handheld barcode scanners powered by 3.7 V Li-ion cells. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) stage with rail-to-rail input accepting 0–3.3 V photocurrent-derived voltage; drives SAR ADC input directly. Use Value: −0.25 V to 3.95 V CMVR at 3.7 V supply captures full photodiode dynamic range; 107 dB CMRR rejects switching noise from motor drivers and RF modules. |
| Single-Supply Instrumentation Amplifier | Wireless Sensor Node ADC Driver |
Use Scenario: Forms two channels of a 3-op-amp instrumentation amplifier in portable ECG monitors using 5 V USB power, requiring rail-to-rail input and output. IC Role / Device Role / Timing Role: Dual amplifier used as input buffers (A & B) for differential stage; provides ultra-high input impedance (>100 MΩ) and eliminates precision resistor matching requirements. Use Value: Eliminates CMR degradation from resistor mismatch; 126 MΩ input resistance prevents signal loading on high-Z biopotential electrodes; 87 dB PSRR suppresses USB power rail noise. | Use Scenario: Drives 12-bit SAR ADC inputs in LoRaWAN environmental sensors powered by 3.6 V primary lithium cells with 10-year lifetime targets. IC Role / Device Role / Timing Role: Precision buffer between analog sensor output and ADC sample-and-hold; maintains linearity and minimizes code-width errors across temperature. Use Value: 1 mV max input offset ensures <0.1% gain error at 1 V full scale; 250 nA input bias current avoids voltage drop across 1 MΩ sensor source impedances. |
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 (6.4 MHz), higher IQ (550 μA), same SOIC-8 package; 100% compatible pinout. | Not suitable for >100 kHz signal chains; better for ultra-low-power (<1 μA sleep) systems with relaxed bandwidth needs. | Select TLV2462IDR only if bandwidth ≤6 MHz suffices and supply current must be minimized below 600 μA. |
| OPA2333AIDR | Zero-drift architecture (0.02 μV/°C drift), lower IQ (17 μA), but GBW = 350 kHz and slew rate = 0.16 V/μs. | Optimized for DC-critical applications (e.g., weigh scales); unsuitable for AC-coupled or wideband signal paths. | Choose OPA2333AIDR only when sub-μV offset drift dominates over speed-never for depth sounder or scanner use cases. |
Compared with TLV2462IDR and OPA2333AIDR, LM6142AIM/NOPB uniquely balances 17 MHz bandwidth, 30 V/μs slew rate, and 650 μA IQ in a standard SOIC-8, making it the only viable option for battery-powered, wideband analog front-ends requiring rail-to-rail performance without zero-drift trade-offs.
Availability
LM6142AIM/NOPB is available at Aetrix Electronics and suitable for depth sounders, barcode scanners, wireless sensor nodes, and single-supply instrumentation amplifiers requiring stable component supply, long-lifecycle availability, and guaranteed traceable sourcing.
Supply support for LM6142AIM/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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The LM614x family was designed specifically for battery-operated instrumentation requiring rail-to-rail input/output, wide supply range (2.7 V–24 V), and high-speed precision-addressing limitations of earlier low-power op amps in portable test equipment and sensor interfaces.
FAQ
What is the maximum supply voltage for LM6142AIM/NOPB?
The absolute maximum supply voltage for LM6142AIM/NOPB is 33 V, as specified in Section 5.1 of the SNOS726E datasheet. Operation beyond this voltage risks permanent damage. Recommended operating range is 2.7 V to 32 V, with full electrical specifications guaranteed from 2.7 V to 24 V across −40°C to +85°C ambient temperature.
Does LM6142AIM/NOPB support true rail-to-rail input at 3.3 V supply?
Yes. At VS = 3.3 V, LM6142AIM/NOPB maintains rail-to-rail input common-mode voltage range from −0.25 V to +3.55 V, confirmed in Section 5.6 (VCM spec) and Figure 5-4 of the datasheet. This allows direct interfacing with 0–3.3 V sensors without external level shifting or clamping diodes.
Can LM6142AIM/NOPB drive a 1000 pF capacitive load stably?
No. LM6142AIM/NOPB is characterized for stable operation into ≥100 pF loads without external compensation, as noted in the "Description" section and Application Note SNOS726E Section 6.2.2. Driving 1000 pF requires a series isolation resistor (typically 10–100 Ω) between the output and load to prevent peaking or oscillation.
What is the input offset voltage specification for LM6142AIM/NOPB over temperature?
For LM6142AIM/NOPB (AI grade), input offset voltage is 2.2 mV maximum over the full operating temperature range of −40°C to +85°C, per Section 5.6 of SNOS726E. The typical value is 1 mV at 25°C, with drift of 3 µV/°C, resulting in predictable, bounded error in precision DC-coupled circuits.
Is LM6142AIM/NOPB RoHS-compliant and lead-free?
Yes. The /NOPB suffix explicitly denotes lead-free and RoHS-compliant packaging. LM6142AIM/NOPB uses matte tin lead finish on its SOIC-8 package and meets all requirements of Directive 2011/65/EU, including exemption 7a for lead in high-melting-temperature type solders.
LM6142AIM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM6142AIM/NOPB FAQ
1.How can I place an order for LM6142AIM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6142AIM/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 LM6142AIM/NOPB reliable?
The price and inventory of LM6142AIM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6142AIM/NOPB is usually 5 days.
3.What payment methods are accepted for LM6142AIM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6142AIM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6142AIM/NOPB?
LM6142AIM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6142AIM/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 LM6142AIM/NOPB?
For technical support, including LM6142AIM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6142AIM/NOPB requirements.
6.How does Aetrix verify that LM6142AIM/NOPB is sourced from the original manufacturer or authorized distributors?
All LM6142AIM/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 LM6142AIM/NOPB meets industry standards.
7.What is the process for return or replacement of LM6142AIM/NOPB?
All LM6142AIM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM6142AIM/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 LM6142AIM/NOPB part is unused and in its original packaging.
Return procedure for LM6142AIM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6142AIM/NOPB Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
