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Texas Instruments LM10BH/NOPB
- Part No.:
- LM10BH/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-205AA, TO-5-8 Metal Can
- Datasheet:
-
LM10BH/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TO5-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,722
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Product details
Overview
LM10BH/NOPB from Texas Instruments is a monolithic linear IC integrating a precision voltage reference and an independent high-performance operational amplifier in a single 8-pin SDIP package. It operates from 1.2 V to 40 V supply, draws only 270 μA quiescent current, delivers ±20 mA output drive, and features 2 mV max input offset voltage and 0.1% max reference regulation - enabling use in low-voltage portable battery monitors and floating two-wire transmitters.
For engineers reviewing the LM10BH/NOPB datasheet, LM10BH/NOPB pinout, LM10BH/NOPB application, or LM10BH/NOPB equivalent, this device supports ultra-low-voltage operation (down to 1.2 V), rail-to-rail output swing within 15 mV of supply rails, remote comparator functionality, and stable reference output as low as 200 mV - critical for battery-level indicators, thermocouple signal conditioning, and isolated regulator feedback loops.
Technical Context
The LM10BH/NOPB combines a trimmed bandgap reference buffer and a PNP-input op amp in one die, with shared thermal tracking between reference and amplifier sections to minimize drift coupling. Its floating-mode capability allows operation with V− disconnected from ground - the op amp output tied to V+ enables current-loop transmitter configurations where power and signal share the same pair of wires.
Unlike standard op amps, the LM10BH/NOPB's reference section provides a stable 200 mV nominal output with second-order temperature compensation, while the amplifier maintains ≥80 V/mV large-signal gain at ±20 mA load and exhibits ≤2 μV/°C offset drift - enabling precision DC signal conditioning without external trimming components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 40 V - supports single-cell alkaline (1.5 V) and industrial HV rails without external regulators |
| Input Offset Voltage | 2 mV (max) - enables accurate DC amplification in battery monitoring without nulling circuitry |
| Reference Regulation | 0.1% (max) - ensures stable 200 mV reference for shunt regulator or ADC reference scaling |
| Supply Current | 270 μA (typ), 500 μA (max) - permits multi-year operation in coin-cell-powered remote sensors |
| Output Drive | ±20 mA - drives 250 Ω loads directly, eliminating external buffers in 4–20 mA loop transmitters |
| Offset Drift | 2 μV/°C - maintains <10 μV total drift over 0°C to 70°C, critical for thermocouple cold-junction compensation |
| Reference Drift | 0.002%/°C - yields <0.15% total reference error across full operating temperature range |
Pinout & Package
LM10BH/NOPB is housed in an 8-pin Small Outline Dual In-line Package (SDIP) with body size 8.255 mm × 8.255 mm and standard through-hole footprint compatible with PDIP-8 layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Reference Output | Reference voltage source | Provides 200 mV nominal buffered reference; used as precision shunt regulator or ADC reference |
| 2 - Op Amp Input (–) | Inverting input terminal | Accepts feedback signals for closed-loop configurations including transimpedance and differential amplifiers |
| 3 - Op Amp Input (+) | Noninverting input terminal | Connects to sensor outputs (e.g., thermocouple, RTD) or reference-divided voltages for comparator/amp functions |
| 4 - V– | Negative supply terminal | Serves as common return; can float below ground in two-wire transmitter mode |
| 5 - Balance | Offset null adjustment | Connects external potentiometer (10 kΩ) between pins 1 and 8 to trim input offset to <0.5 mV |
| 6 - Op Amp Output | Amplifier output node | Drives loads up to ±20 mA; swings within 15 mV of V+ or V– rails for maximum dynamic range |
| 7 - V+ | Positive supply terminal | Accepts 1.2–40 V input; powers both reference and amplifier sections simultaneously |
| 8 - Reference Feedback | Reference error-sense input | Used to program reference output voltage externally (e.g., 2.5 V via resistor divider) with 0.1% accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Floating-mode operation | Enables two-wire current-loop transmitters by disconnecting V– from ground and tying op amp output to V+ |
| Ultra-low minimum supply | Operates down to 1.2 V - supports direct connection to single NiMH or alkaline cells without boost circuitry |
| Integrated precision reference | 200 mV output with 0.1% regulation and 0.002%/°C drift - eliminates need for external reference ICs |
| Rail-to-rail output swing | Within 15 mV of V+ or V– - maximizes usable output range in low-voltage sensor interfaces |
| Thermal overload protection | Internal thermal limiting prevents damage during sustained short-circuit or high-temperature operation |
Applications
| Battery-Level Indicator | Thermocouple Transmitter |
|---|---|
Use Scenario: Monitoring remaining charge in portable medical devices powered by single 1.5 V alkaline cells. IC Role / Device Role / Timing Role: LM10BH/NOPB acts as rail-to-rail comparator with internal 200 mV reference, comparing battery voltage against threshold. Use Value: Eliminates external voltage reference and level-shifter ICs, reducing BOM count and enabling operation down to 1.2 V cutoff. |
Use Scenario: Converting thermocouple output to 4–20 mA current loop for industrial temperature sensing over long cables. IC Role / Device Role / Timing Role: LM10BH/NOPB serves as precision instrumentation amplifier and floating current-source driver. Use Value: Uses floating-mode configuration to isolate signal ground; reference and op amp track thermally, minimizing cold-junction drift. |
| Voltage Regulator Feedback | Remote Signal Conditioner |
Use Scenario: Providing accurate feedback for adjustable shunt regulators in telecom power supplies with 3.3–48 V input range. IC Role / Device Role / Timing Role: LM10BH/NOPB functions as programmable 200 mV reference buffer with external resistor divider on pin 8. Use Value: Achieves 0.1% output regulation stability across temperature and line variations without trimming. |
Use Scenario: Amplifying weak sensor signals (e.g., strain gauges) in remote, ungrounded locations such as oil-field wellheads. IC Role / Device Role / Timing Role: LM10BH/NOPB operates in floating mode with V– disconnected, using local ground as signal reference. Use Value: Enables galvanic isolation without optocouplers or isolated DC/DC converters - reduces cost and EMI susceptibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM10CN/NOPB | Commercial-grade (0°C to 70°C), higher 5 mV max offset voltage, 0.003%/°C reference drift | Lower-cost option for non-military/non-industrial ambient environments | Select when extended temperature range and tighter drift specs are not required |
| LM10CL/NOPB | Low-voltage variant (1.2 V to 6.5 V max), 0.003%/°C reference drift, 5 mV max offset | Optimized for battery-powered systems with strict <7 V supply constraints | Choose only if supply never exceeds 6.5 V; otherwise LM10BH/NOPB offers broader voltage flexibility |
Compared with LM10CN/NOPB and LM10CL/NOPB, the LM10BH/NOPB provides superior temperature stability (−25°C to 85°C range, 2 μV/°C drift, 0.1% reference regulation), making it the preferred choice for industrial sensor interfaces and battery monitors requiring consistent performance across wide ambient conditions.
Availability
LM10BH/NOPB is available at Aetrix Electronics and suitable for battery-level indicators, thermocouple transmitters, and voltage regulator feedback circuits requiring stable component supply across extended temperature ranges and ultra-low-voltage operation.
Supply support for LM10BH/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 IC design.
The LM10 series was engineered to unify reference and amplification functions in a single IC for portable, floating, and low-voltage industrial signal conditioning - addressing needs in battery monitoring, process control, and isolated sensor interfaces.
FAQ
What is the minimum operating voltage for LM10BH/NOPB?
The LM10BH/NOPB operates down to 1.2 V total supply voltage (V+ to V−), verified per TI SNOSBH4E Rev E specifications. This enables direct use with single alkaline or NiMH cells. Operation below 1.2 V is not guaranteed, and startup may fail below 1.1 V. The LM10BH/NOPB achieves functional amplification and reference regulation at 1.2 V with 270 μA supply current - a key differentiator versus conventional op amps requiring ≥2.7 V.
Can LM10BH/NOPB be used in floating two-wire transmitter configurations?
Yes, LM10BH/NOPB supports true floating-mode operation: its op amp output can be connected directly to V+, decoupling V− from ground and allowing the entire IC to bias from residual loop voltage. In this mode, the reference and amplifier remain functional, enabling 4–20 mA transmitter designs with only two wires. TI's datasheet Figure 36 and Section 7.4.1 explicitly validate this topology for LM10BH/NOPB.
What is the purpose of the Balance pin (Pin 5) on LM10BH/NOPB?
Pin 5 (Balance) is the offset null terminal for the integrated operational amplifier. Connecting a 10 kΩ potentiometer between Pin 1 (Reference Output) and Pin 8 (Reference Feedback) allows trimming of input offset voltage to under 0.5 mV - critical for high-accuracy DC measurements. This function is documented in the "Pin Functions" section of the LM10BH/NOPB datasheet and requires no additional external components beyond the potentiometer.
How does the reference section of LM10BH/NOPB differ from standard bandgap references?
The LM10BH/NOPB reference uses second-order curvature compensation to eliminate the parabolic drift typical of basic bandgap designs, achieving 0.002%/°C drift and 0.1% regulation. Unlike standalone references, it shares thermal mass with the op amp, ensuring correlated drift behavior - which improves system-level accuracy in sensor signal chains where both reference and amplifier errors track together.
Is LM10BH/NOPB pin-compatible with other LM10 variants like LM10CN/NOPB?
Yes, LM10BH/NOPB shares identical 8-pin SDIP pinout and electrical pin functions with all LM10 family members including LM10CN/NOPB and LM10CL/NOPB. Mechanical compatibility is confirmed in TI's "Device Information" table and "Pin Configuration" section. However, temperature range, offset voltage, and reference drift differ - so substitution requires validation of those parameters for the target application.
LM10BH/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-205AA, TO-5-8 Metal Can
- Packaging:
- Tray
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 270µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- -
- Voltage - Supply Span (Max):
- -
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-5-8
LM10BH/NOPB FAQ
1.How can I place an order for LM10BH/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM10BH/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 LM10BH/NOPB reliable?
The price and inventory of LM10BH/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM10BH/NOPB is usually 5 days.
3.What payment methods are accepted for LM10BH/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM10BH/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM10BH/NOPB?
LM10BH/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM10BH/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 LM10BH/NOPB?
For technical support, including LM10BH/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM10BH/NOPB requirements.
6.How does Aetrix verify that LM10BH/NOPB is sourced from the original manufacturer or authorized distributors?
All LM10BH/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 LM10BH/NOPB meets industry standards.
7.What is the process for return or replacement of LM10BH/NOPB?
All LM10BH/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM10BH/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 LM10BH/NOPB part is unused and in its original packaging.
Return procedure for LM10BH/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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