My Inquiry
My Account
Texas Instruments LM6142BIM/NOPB
- Part No.:
- LM6142BIM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6142BIM/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,206
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM6142BIM/NOPB from Texas Instruments is a dual-channel rail-to-rail input/output operational amplifier optimized for battery-powered instrumentation and low-voltage signal conditioning. It delivers 17MHz gain-bandwidth, 30V/μs slew rate, 650μA per amplifier quiescent current, 2.7V to 24V supply range, and −0.25V to 5.25V common-mode input range at 5V supply - enabling high-fidelity analog front-ends in depth sounders and barcode scanners.
For engineers reviewing the LM6142BIM/NOPB datasheet, LM6142BIM/NOPB pinout, LM6142BIM/NOPB application, or LM6142BIM/NOPB equivalent, key selection considerations include its rail-to-rail I/O capability at low supply voltage, 107dB CMRR, 87dB PSRR, and verified performance across −40°C to +85°C ambient temperature with SOIC-8 packaging.
Technical Context
The LM6142BIM/NOPB employs a patented dual-input-stage architecture (NPN + PNP) enabling true rail-to-rail input operation beyond the supply rails (−0.25V to VS + 0.25V), eliminating common-mode headroom constraints in single-supply systems. Its slew-boosted output stage supports fast 30V/μs transient response while maintaining stability into 100pF capacitive loads without external compensation.
This device operates across 2.7V–24V supplies with 650μA/amplifier quiescent current, making it suitable for portable instrumentation where power efficiency and dynamic range are co-constrained. Electrical characteristics are fully specified over −40°C to +85°C, including 2.5mV max input offset voltage and 107dB CMRR at 5V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 17MHz at 50kHz (typ); enables stable unity-gain buffer or 10× closed-loop amplification up to ~1.7MHz. |
| Slew Rate | 30V/μs (typ); supports full-scale 4V output transitions in ≤133ns, critical for pulse-shaped sensor signals. |
| Supply Current | 650μA per amplifier (typ at 5V); allows dual-channel operation on coin-cell or 3.3V LDO rails with minimal battery drain. |
| Input Common-Mode Range | −0.25V to 5.25V at VS = 5V; accepts inputs 0.25V below negative rail and 0.25V above positive rail - no level-shifting needed. |
| Output Voltage Swing | Within 30mV of rails (RL = 100kΩ, VS = 5V); preserves >99% of available dynamic range for ADC interfacing. |
| CMRR | 107dB (typ at 5V); rejects >99.999% of common-mode noise in noisy industrial or automotive sensor environments. |
| PSRR | 87dB (typ at 24V); maintains DC accuracy despite ±100mV supply ripple in unregulated battery systems. |
Pinout & Package
LM6142BIM/NOPB is housed in an 8-pin SOIC (D) package measuring 4.90mm × 3.91mm, rated for surface-mount reflow assembly and compatible with IPC-7351B footprint IPC-7351B_SOIC_8P_490X391MM_PITCH127MM.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output; rail-to-rail swing supports direct connection to SAR ADC reference or comparator input. |
| 2 | Inverting Input A | Differential input node for channel A; high 126MΩ common-mode resistance minimizes loading on high-Z sensors. |
| 3 | Non-Inverting Input A | Positive input for channel A; supports unity-gain buffer configuration with full rail-to-rail input compliance. |
| 4 | V− | Negative supply rail; accepts ground or −2.7V for split-supply operation; input protection diodes clamp to rails. |
| 5 | Non-Inverting Input B | Positive input for channel B; electrically isolated from channel A with 130dB amp-to-amp isolation. |
| 6 | Inverting Input B | Differential input node for channel B; identical bias current specs (170–300nA) enable matched transimpedance designs. |
| 7 | Output B | Amplifier B output; independently buffered; drives 2kΩ loads within 140mV of rails at 5V supply. |
| 8 | V+ | Positive supply rail; supports 2.7V–24V operation; internal regulation ensures stable biasing across voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input beyond supply rails | Accepts −0.25V to VS + 0.25V common-mode voltage - eliminates need for external level shifters in single-supply sensor interfaces. |
| Slew-boosted output stage | Delivers 30V/μs slew rate without oscillation into 100pF loads - enables direct driving of ADC sample-and-hold capacitors. |
| Low quiescent current per channel | 650μA at 5V supply - supports dual-channel operation on 10mA/hour battery for >1 year standby in portable instruments. |
| High open-loop gain | 108dB (100,000 V/V) at RL = 10kΩ - ensures <0.001% gain error in precision 10× instrumentation amplifier configurations. |
| Robust ESD protection | ±4000V HBM rating - withstands handling in non-ESD-controlled production environments without parametric shift. |
Applications
| Depth Sounder Signal Conditioning | Barcode Scanner Analog Front-End |
|---|---|
Use Scenario: Amplifying weak echo return signals (µV–mV) from piezoelectric transducers in marine depth sounders operating from 3.3V Li-ion batteries. IC Role / Device Role / Timing Role: Dual-channel op amp configured as low-noise preamp (CH A) and active filter (CH B) with rail-to-rail I/O preserving full dynamic range at 3.3V supply. Use Value: 16nV/√Hz input voltage noise and 30V/μs slew rate resolve sub-microsecond echo timing; 650μA/channel extends battery life beyond 8 hours continuous operation. |
Use Scenario: Buffering and scaling photodiode current outputs in handheld barcode scanners powered by 2xAA alkaline cells (2.4–3.2V). IC Role / Device Role / Timing Role: CH A used as transimpedance amplifier; CH B as rail-to-rail output driver for ADC interface - both operating across full battery voltage range. Use Value: 2.7V minimum supply and rail-to-rail output ensure consistent 12-bit ADC utilization down to 2.4V battery voltage; 107dB CMRR rejects motor and RF interference. |
| Battery-Powered Instrumentation Amp | Wireless Communication Baseband Filter |
Use Scenario: Building 3-op-amp instrumentation amplifiers for portable medical sensors (ECG, pH) requiring >100dB CMRR and single-supply operation. IC Role / Device Role / Timing Role: LM6142BIM/NOPB provides two matched buffers (CH A/B) for differential inputs and third op amp (external) for gain stage - all sharing same die for tracking. Use Value: Matched input bias current (170–300nA) and 130dB amp-to-amp isolation prevent CMR degradation; rail-to-rail I/O avoids clipping on ±100mV bio-sensor signals. |
Use Scenario: Low-pass filtering and level-shifting baseband I/Q signals in Bluetooth LE or Zigbee modules powered from 3.3V system rails. IC Role / Device Role / Timing Role: Dual-channel configured as 2nd-order Sallen-Key filters (CH A = I-path, CH B = Q-path) with precise 17MHz GBW defining cutoff accuracy. Use Value: 17MHz GBW enables sharp 2MHz cutoff with <0.1dB passband ripple; 87dB PSRR prevents digital switching noise from modulating analog signal path. |
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), wider offset drift (5µV/°C vs 3µV/°C) | Less suitable for >1MHz sensor signal chains; better for ultra-low-power (<500μA) sleep-mode wake-up circuits | Choose TLV2462IDR only if supply current is primary constraint and bandwidth <1MHz suffices. |
| OPA2333AIDR | Zero-drift architecture (0.02µV/°C), lower noise (5.5nV/√Hz), but lower GBW (350kHz) and higher IQ (17μA) | Preferred for DC-critical applications (weigh scales, thermocouples); unsuitable for AC-coupled ultrasound or comm signals | Choose OPA2333AIDR when microvolt-level DC stability outweighs speed; avoid for >100kHz signal paths. |
Compared with TLV2462IDR and OPA2333AIDR, LM6142BIM/NOPB uniquely balances 17MHz bandwidth, 30V/μs slew rate, and 650μA quiescent current - making it the only option among the three capable of driving 2MHz ADC front-ends while sustaining >8-hour battery life in portable instrumentation.
Availability
LM6142BIM/NOPB is available at Aetrix Electronics and suitable for battery-operated instrumentation, depth sounders/fish finders, and barcode scanners requiring stable component supply, long-lifecycle availability, and guaranteed traceable sourcing.
Supply support for LM6142BIM/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 company headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and DLP technology since 1930.
The LM614x family was developed specifically for high-performance, low-power analog signal conditioning in portable and single-supply systems - emphasizing rail-to-rail I/O, wide supply range, and robustness in battery-constrained environments.
FAQ
What is the maximum supply voltage for LM6142BIM/NOPB?
The absolute maximum supply voltage for LM6142BIM/NOPB is 33V, as specified in Section 5.1 of the SNOS726E datasheet. Operation above this voltage risks permanent damage. Recommended operating range is 2.7V to 32V, with full electrical specifications guaranteed from 2.7V to 24V across −40°C to +85°C ambient temperature. The LM6142BIM/NOPB must not be operated continuously at 33V.
Does LM6142BIM/NOPB support true rail-to-rail input beyond the supply rails?
Yes, LM6142BIM/NOPB supports common-mode input voltages from −0.25V to VS + 0.25V at 5V supply - exceeding both rails by 0.25V. This is confirmed in Section 5.6 (VCM = −0.25V to 5.25V, typ) and enables direct interfacing with sensors whose output swings below ground or above VS, such as piezoelectric transducers or certain DACs. The LM6142BIM/NOPB achieves this via complementary NPN/PNP input stage topology.
What is the typical input offset voltage for LM6142BIM/NOPB over temperature?
The typical input offset voltage for LM6142BIM/NOPB is 2.5mV at 25°C and increases to a maximum of 3.3mV over the full −40°C to +85°C operating range, as documented in Section 5.6 under "OFFSET VOLTAGE" for LM6142BI grade. This value is measured with VS = 5V, RL > 1MΩ, and VCM = VS/2. The LM6142BIM/NOPB uses the 'B' grade silicon, distinct from the tighter 'A' grade (max 2.2mV).
Can LM6142BIM/NOPB drive capacitive loads without external compensation?
Yes, LM6142BIM/NOPB is designed to drive ≥100pF capacitive loads stably without external compensation, as verified in typical characteristics (Figure 5-19 through 5-21) and application note Section 6.2.2. Its slew-boosted output stage and internal compensation maintain ≥36° phase margin even with 100pF load at unity gain. For loads >100pF, TI recommends adding a small series resistor (10–50Ω) close to the output pin. This behavior is intrinsic to the LM6142BIM/NOPB design and does not require external components under standard conditions.
Is LM6142BIM/NOPB pin-compatible with other LM614x variants?
Yes, LM6142BIM/NOPB is pin-compatible with all LM6142 variants in SOIC-8 (D) package, including LM6142AIM/NOPB and LM6142BIMX/NOPB. Pinout matches Figure 4-2 in SNOS726E. It is not pin-compatible with LM6144 (quad, 14-pin) or PDIP-packaged versions. The LM6142BIM/NOPB shares identical pin functions, thermal pad absence, and PCB footprint with other LM6142 D-package variants - enabling drop-in replacement within the same grade and package family.
LM6142BIM/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
LM6142BIM/NOPB FAQ
1.How can I place an order for LM6142BIM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6142BIM/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 LM6142BIM/NOPB reliable?
The price and inventory of LM6142BIM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6142BIM/NOPB is usually 5 days.
3.What payment methods are accepted for LM6142BIM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6142BIM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6142BIM/NOPB?
LM6142BIM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6142BIM/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 LM6142BIM/NOPB?
For technical support, including LM6142BIM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6142BIM/NOPB requirements.
6.How does Aetrix verify that LM6142BIM/NOPB is sourced from the original manufacturer or authorized distributors?
All LM6142BIM/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 LM6142BIM/NOPB meets industry standards.
7.What is the process for return or replacement of LM6142BIM/NOPB?
All LM6142BIM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM6142BIM/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 LM6142BIM/NOPB part is unused and in its original packaging.
Return procedure for LM6142BIM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6142BIM/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…
