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Texas Instruments LM10CWM/NOPB
- Part No.:
- LM10CWM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LM10CWM/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:192
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Product details
Overview
LM10CWM/NOPB from Texas Instruments is a monolithic linear IC integrating a precision voltage reference and an independent operational amplifier in a single 14-pin SOIC package. It operates from 1.2 V to 40 V supply, draws only 300–570 μA, delivers ±20 mA output current, and features 200 mV reference output with 0.1% regulation - enabling low-voltage portable instrumentation and two-wire analog transmitters.
For engineers reviewing the LM10CWM/NOPB datasheet, LM10CWM/NOPB pinout, LM10CWM/NOPB application, or LM10CWM/NOPB equivalent, this page provides verified electrical specs, thermal behavior, floating-mode operation details, and real-world implementation guidance for battery-powered sensors, thermocouple conditioners, and wide-input-voltage regulators.
Technical Context
The LM10CWM/NOPB combines a trimmed bandgap reference (200 mV nominal, 0.003%/°C drift) with a high-output-drive op amp capable of rail-to-rail swing within 15 mV and ±20 mA sourcing/sinking. Its input common-mode range extends from V− to (V+ − 0.85 V), supporting operation down to 1.2 V total supply.
Floating-mode functionality is enabled by shorting the op amp output to V+, allowing remote signal conditioning and two-wire transmitter operation without fixed ground references. Thermal overload protection and internal current limiting ensure robustness in demanding regulator and SCR control applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 40 V - enables direct operation from single alkaline cells or high-voltage industrial rails. |
| Reference Output | 200 mV ±10 mV - stable low-voltage reference usable as shunt regulator or bias source. |
| Input Offset Voltage | 4 mV max (TMIN ≤ TJ ≤ TMAX) - supports precision DC-coupled amplification in sensor front-ends. |
| Supply Current | 300–570 μA - ultra-low quiescent draw critical for multi-year battery life in remote monitors. |
| Output Drive | ±20 mA - sufficient to drive LEDs, small relays, or feedback networks without external buffers. |
| Reference Regulation | 0.1% max - ensures stable reference under varying load and line conditions in closed-loop systems. |
| Offset Drift | 5 μV/°C - low thermal drift maintains accuracy across 0°C to 70°C commercial temperature range. |
Pinout & Package
LM10CWM/NOPB is housed in a 14-pin SOIC (NPA) package measuring 8.992 mm × 7.498 mm, with 6 no-connect pins and fully validated terminal functions per TI SNOSBH4E Rev E.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 3 | Reference Output | Provides 200 mV precision reference; requires external feedback resistor for adjustable outputs. |
| 6 | V− | Negative supply rail; also serves as reference and op amp input common node in floating configurations. |
| 10 | Op Amp Output | Class-AB complementary output stage; swings within 15 mV of rails or delivers ±20 mA into load. |
| 11 | V+ | Positive supply rail; tied to op amp output in floating mode to enable two-wire operation. |
| 12 | Reference Feedback | Connects to external resistor divider to set reference voltage above 200 mV (e.g., 2.5 V, 5 V). |
| 4, 5 | Op Amp Input (–), (+) | Differential inputs with 12–400 kΩ input resistance; support rail-to-rail common-mode range (V− to V+ − 0.85 V). |
| 9 | Balance | Offset nulling terminal; used with external potentiometer to trim input offset voltage below 4 mV. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-mode operation | Enables two-wire analog transmission by tying op amp output to V+, eliminating need for system ground reference. |
| Ultra-low supply voltage | Operates down to 1.2 V total supply - suitable for single-cell battery systems where other op amps fail to start. |
| Integrated 200-mV reference | Stable, low-drift (0.003%/°C) reference with 0.1% regulation - reduces BOM count vs. discrete reference + op amp solutions. |
| Rail-swing output stage | Output reaches within 15 mV of V+ or V− - maximizes dynamic range in low-voltage signal conditioning. |
| Thermal overload protection | Internal circuitry limits junction temperature to 85°C - prevents catastrophic failure during sustained overloads. |
Applications
| Remote Amplifiers | Battery-Level Indicators |
|---|---|
Use Scenario: Signal conditioning of low-level sensor outputs (e.g., strain gauges, RTDs) located meters from host controller via twisted-pair wiring. IC Role / Device Role / Timing Role: LM10CWM/NOPB acts as a powered remote amplifier with integrated reference, transmitting conditioned analog signal over same pair supplying its power. Use Value: Eliminates local power rail and separate reference IC, reducing remote node component count and PCB area by ≥3 devices. |
Use Scenario: Monitoring remaining charge in primary lithium or alkaline battery packs used in portable medical or metering equipment. IC Role / Device Role / Timing Role: LM10CWM/NOPB compares battery voltage against its internal 200-mV reference using external resistor divider, driving LED or microcontroller alert. Use Value: Operates reliably down to 1.2 V supply - detects end-of-life voltage before brownout, extending usable battery capacity by up to 15%. |
| Thermocouple Transmitters | Voltage and Current Regulators |
Use Scenario: Cold-junction compensation and linearization of Type-K thermocouple outputs in industrial process sensors. IC Role / Device Role / Timing Role: LM10CWM/NOPB provides precision 200-mV reference for ADC bias and amplifies thermocouple mV signal with gain calibrated against reference. Use Value: 5 μV/°C offset drift and 0.003%/°C reference drift limit total error to <±2°C over 0–70°C ambient - meeting Class 2 thermocouple accuracy. |
Use Scenario: High-side or floating shunt regulator for 3.3 V, 5 V, or 12 V supplies in PLC I/O modules or motor drives. IC Role / Device Role / Timing Role: LM10CWM/NOPB configures as adjustable shunt regulator using reference feedback pin and external resistors, sinking up to 20 mA. Use Value: Supports input voltages up to 40 V while maintaining 0.1% reference regulation - simplifies design of wide-input industrial power rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision reference + op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM10CM/NOPB | Same electrical specs but in 8-pin PDIP package (9.81 mm × 6.35 mm); higher RθJA (87°C/W vs. 90°C/W). | Preferred for through-hole prototyping or legacy board rework; lacks SOIC's thermal and space advantages. | Select LM10CM/NOPB only when PDIP footprint is required; SOIC (LM10CWM/NOPB) offers better thermal performance and density. |
| LM10BWM/NOPB | Wider temperature range (−25°C to 85°C vs. 0°C to 70°C); lower input offset (3 mV max vs. 5 mV max); identical pinout and package. | Suitable for extended-temperature industrial environments where LM10CWM/NOPB may drift beyond spec. | Choose LM10BWM/NOPB for deployments outside 0–70°C; otherwise LM10CWM/NOPB provides cost-optimized commercial-grade performance. |
Compared with LM10CM/NOPB, LM10CWM/NOPB offers superior thermal dissipation in compact layouts; compared with LM10BWM/NOPB, it trades extended temperature capability for lower unit cost in standard commercial applications - making it optimal for battery-powered instrumentation and cost-sensitive industrial controls.
Availability
LM10CWM/NOPB is available at Aetrix Electronics and suitable for remote amplifiers, battery-level indicators, and thermocouple transmitters requiring stable component supply across long production lifecycles.
Supply support for LM10CWM/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 heritage in precision linear ICs.
The LM10 series was designed to unify reference and amplification functions in ultra-low-voltage, floating, and high-reliability analog signal chains - targeting portable instrumentation, industrial sensing, and ruggedized power control.
FAQ
What is the minimum operating supply voltage for LM10CWM/NOPB?
The LM10CWM/NOPB operates down to 1.2 V total supply voltage (V+ − V−), with functional specification guaranteed from that point. Its ability to start and regulate at such low voltage makes it uniquely suited for single-cell alkaline or lithium primary battery applications where other precision op amps fail to power up. The internal reference remains stable and the op amp retains usable gain even at 1.2 V.
Can LM10CWM/NOPB be used in floating two-wire transmitter configurations?
Yes - the LM10CWM/NOPB supports true floating-mode operation by connecting its op amp output to V+. In this configuration, it functions as a two-wire transmitter: power and signal share the same pair, with the device regulating its own reference and amplifying the input signal for remote delivery. This eliminates the need for isolated power supplies or ground-referenced circuitry in field instruments.
What is the purpose of the Balance pin (Pin 9) on LM10CWM/NOPB?
Pin 9 (Balance) is the offset null terminal for the operational amplifier section of LM10CWM/NOPB. It connects to an external 10-kΩ potentiometer (wiper to V−, ends to ±V supplies) to adjust input offset voltage below the 4 mV maximum spec. This is essential in precision DC-coupled applications like thermocouple amplifiers or strain gauge bridges where sub-millivolt errors must be minimized.
How does the reference output of LM10CWM/NOPB differ from standard bandgap references?
The LM10CWM/NOPB reference outputs a trimmed 200 mV base-emitter voltage with second-order nonlinearity compensation, yielding 0.003%/°C drift and 0.1% regulation - significantly better than untrimmed bandgaps. Unlike most references, it allows external feedback (via Pin 12) to generate precise higher voltages (e.g., 2.5 V, 5 V) while retaining the same stability and load regulation performance.
Is LM10CWM/NOPB pin-compatible with other LM10 variants like LM10BWM/NOPB?
Yes - LM10CWM/NOPB is fully pin-compatible with LM10BWM/NOPB and LM10BLWM/NOPB in the 14-pin SOIC package. All share identical pin functions, electrical interface, and footprint. The differences lie solely in temperature grade (0°C–70°C vs. −25°C–85°C), input offset voltage (5 mV vs. 3 mV max), and supply current (570 μA vs. 500 μA max), enabling drop-in upgrades where extended temperature operation is needed.
LM10CWM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- 12 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 300µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 1.1 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LM10CWM/NOPB FAQ
1.How can I place an order for LM10CWM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM10CWM/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 LM10CWM/NOPB reliable?
The price and inventory of LM10CWM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM10CWM/NOPB is usually 5 days.
3.What payment methods are accepted for LM10CWM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM10CWM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM10CWM/NOPB?
LM10CWM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM10CWM/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 LM10CWM/NOPB?
For technical support, including LM10CWM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM10CWM/NOPB requirements.
6.How does Aetrix verify that LM10CWM/NOPB is sourced from the original manufacturer or authorized distributors?
All LM10CWM/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 LM10CWM/NOPB meets industry standards.
7.What is the process for return or replacement of LM10CWM/NOPB?
All LM10CWM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM10CWM/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 LM10CWM/NOPB part is unused and in its original packaging.
Return procedure for LM10CWM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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