LM231AN/NOPB Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
LM231AN/NOPB is a precision voltage-to-frequency converter from Texas Instruments with 100kHz max frequency, 0.01% linearity, and 8-Pin DIP package. From $5 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM231AN/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.0000(MOQ 22)
- Temp Range
- -25.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Precision voltage-to-frequency conversion with 0.01% linearity error for high-accuracy signal conditioning
- Wide operating frequency range up to 100kHz suitable for diverse measurement and control applications
- Industry-standard 8-Pin DIP package enabling easy prototyping and through-hole PCB integration
- RoHS compliant (Pb-free) construction meeting modern environmental and safety regulations
- Single-function design with straightforward V-to-F conversion for simplified circuit implementation
Applications
The LM231AN/NOPB is widely used in industrial data acquisition systems where analog signals must be converted to frequency outputs for long-distance transmission with high noise immunity. It serves precision instrumentation applications such as flow meters, tachometers, and analog-to-digital conversion circuits requiring accurate linearity. Additionally, it is employed in battery-powered measurement equipment and process control systems where stable voltage-to-frequency conversion is critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Converter Type | VOLTAGE TO FREQUENCY CONVERTER |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| Linearity Error-Max (EL) | 0.02% |
| Negative Input Voltage-Max | -0.2 V |
| Negative Supply Voltage-Min | -0.2 V |
| Number of Functions | 1 |
| Operating Frequency-Max | 0.1MHz |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Positive Input Voltage-Max | 3V |
| Qualification Status | Not Qualified |
| Supply Current-Max | 6mA |
| Supply Voltage-Max | 20V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## LM231AN/NOPB Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM231AN/NOPB:
Voltage to Frequency Converter, 1 Func, 0.1MHz, Bipolar, PDIP8
suggested
suggested
Frequently Asked Questions
What is the maximum operating frequency of the LM231AN/NOPB?
The LM231AN/NOPB voltage-to-frequency converter supports a maximum operating frequency of 100kHz (0.1 MHz), making it suitable for a wide range of signal conversion applications in instrumentation and data acquisition systems.
What linearity error does the LM231AN/NOPB achieve?
The LM231AN/NOPB achieves a maximum linearity error of 0.02% (specified as 0.01% typical), providing high-precision voltage-to-frequency conversion ideal for accurate measurement systems such as process control, flow meters, and precision ADC circuits.
What package type is the LM231AN/NOPB and what are its voltage constraints?
The LM231AN/NOPB comes in an 8-Pin DIP (R-PDIP-T8) through-hole package. It has a maximum negative input voltage of -0.2V and a minimum negative supply voltage of -0.2V, which should be observed to prevent damage during circuit design.
Is the LM231AN/NOPB RoHS compliant?
Yes, the LM231AN/NOPB is fully RoHS compliant and Pb-free, as indicated by its NOPB suffix and JESD-609 Code e4. It meets modern environmental regulations for lead-free electronics manufacturing.
What are typical applications for the LM231AN/NOPB?
The LM231AN/NOPB is commonly used in industrial measurement systems, flow meters, tachometers, analog-to-digital converters, frequency synthesizers, and long-distance signal transmission where converting voltage levels to frequency pulses improves noise immunity and accuracy.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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