Overview
The LM2903M/NOPB is a low-offset, dual differential comparator produced by Texas Instruments. This component is part of the LMx93-N series, designed to operate from a single power supply over a wide range of voltages, as well as from split power supplies. The LM2903M/NOPB is notable for its high precision, low power consumption, and compatibility with various logic systems.
It features two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max, making it suitable for applications requiring high accuracy and low power drain. The device is available in an 8-pin SOIC (D) package and also in the innovative thin DSBGA package with 8 large bumps.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 2.0 V to 36 V | V |
| Single or Dual Supplies | ±1.0 V to ±18 V | V |
| Supply Current Drain | 0.4 mA (at 5 V), 1 mA (at 36 V) | mA |
| Input Bias Current | 25 nA | nA |
| Input Offset Current | ±5 nA | nA |
| Maximum Offset Voltage | ±3 mV | mV |
| Input Common-Mode Voltage Range | 0 to V+ - 1.5 V | V |
| Differential Input Voltage Range | Equal to the Power Supply Voltage | V |
| Output Saturation Voltage | 250 mV at 4 mA | mV |
| Output Voltage Compatibility | TTL, DTL, ECL, MOS, and CMOS logic systems |
Key Features
- Wide Supply Voltage Range: 2.0 V to 36 V, single or dual supplies ±1.0 V to ±18 V
- Very Low Supply Current Drain: 0.4 mA, independent of supply voltage
- Low Input Biasing Current: 25 nA
- Low Input Offset Current: ±5 nA
- Maximum Offset Voltage: ±3 mV
- Input Common-Mode Voltage Range Includes Ground
- Differential Input Voltage Range Equal to the Power Supply Voltage
- Low Output Saturation Voltage: 250 mV at 4 mA
- Output Voltage Compatible with TTL, DTL, ECL, MOS, and CMOS logic systems
- Available in SOIC (D) and DSBGA packages
- High Precision Comparators with Reduced VOS Drift Over Temperature
- Eliminates Need for Dual Supplies and Allows Sensing Near Ground
- Power Drain Suitable for Battery Operation
Applications
- Limit Comparators
- Simple Analog to Digital Converters
- Pulse, Squarewave, and Time Delay Generators
- Wide Range Voltage-Controlled Oscillators (VCO)
- MOS Clock Timers
- Multivibrators
- High Voltage Digital Logic Gates
- Battery Powered Applications
- Industrial Applications
Q & A
- What is the operating temperature range of the LM2903M/NOPB?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the LM2903M/NOPB?
The supply voltage range is 2.0 V to 36 V, with single or dual supplies from ±1.0 V to ±18 V.
- How much current does the LM2903M/NOPB draw from the supply?
The supply current drain is 0.4 mA at 5 V and up to 1 mA at 36 V.
- What is the input bias current of the LM2903M/NOPB?
The input bias current is 25 nA.
- What is the maximum offset voltage of the LM2903M/NOPB?
The maximum offset voltage is ±3 mV.
- Is the output of the LM2903M/NOPB compatible with various logic systems?
Yes, the output voltage is compatible with TTL, DTL, ECL, MOS, and CMOS logic systems.
- What are the typical applications of the LM2903M/NOPB?
Typical applications include limit comparators, simple analog to digital converters, pulse and time delay generators, VCOs, MOS clock timers, multivibrators, and high voltage digital logic gates.
- Can the LM2903M/NOPB be used in battery-powered applications?
Yes, the low power consumption makes it suitable for battery-powered applications.
- What packages are available for the LM2903M/NOPB?
The LM2903M/NOPB is available in SOIC (D) and DSBGA packages.
- How does the LM2903M/NOPB handle input common-mode voltage?
The input common-mode voltage range includes ground, and the differential input voltage range equals the power supply voltage.
