HLF LM321 – Single Operational Amplifier (SOT23-5) | Low-Power Op-Amp | 3V–24V, 0°C to +70°C | Surface-Mount Package

The HLF LM321 (SOT23-5) is a single-channel low-power operational amplifier designed for general-purpose amplification in compact electronic systems. It delivers wide voltage operation (3V to 24V) with low input offset voltage (<±5 mV) and low input bias current (<250 nA), making it suitable for precision analog applications.

With a unity-gain bandwidth of 1 MHz and slew rate of 0.4 V/µs, the LM321 provides reliable performance in low-frequency, signal-conditioning, and sensor interface circuits. Its miniature SOT23-5 package ensures space-efficient implementation in portable and battery-powered devices.

Key Features:

• Function: Single Operational Amplifier

• Technology: Bipolar

• Operating Voltage: 3V – 24V

• Supply Current: 0.5 mA (typical)

• Input Offset Voltage: < ±5 mV

• Input Bias Current: < 250 nA

• Gain Bandwidth Product: 1 MHz

• Slew Rate: 0.4 V/µs

• Operating Temperature: 0°C to +70°C

• Package Type: SOT23-5 (Small Outline Transistor Package)

• Mounting Type: Surface-Mount

• Rail-to-Rail Output Capability

• Single-Supply or Dual-Supply Operation

• Low Power Consumption

• High Input Impedance, Low Offset Voltage

Applications:

• Sensor and Signal Conditioning

• Battery-Operated Devices

• Low-Frequency Active Filters

• Voltage Followers and Buffers

• General-Purpose Analog Circuits

• Portable and Consumer Electronics