amplifiers comparators

LM321MF

Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the LM321MF family does

The LM321MF is a low-power operational amplifier featuring a 1 MHz gain-bandwidth product and a 0.4 V/µs slew rate. It operates across a wide supply voltage range of +3V to +32V while maintaining a quiescent current of 430 µA per amplifier. The device supports input bias currents as low as 45 nA and handles large capacitive loads effectively. Engineers typically use this component in single or dual supply applications for industrial controls, instruments, desktops, and communications infrastructure. Its SOT-23-5L package ensures compact board space without sacrificing performance in commercial, industrial, or military temperature grades.

Next step
Start building with LM321MF → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
01 — Key specifications

LM321MF datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current — 660 µA 2 mA V+ = 30V; 3. Applications UTD datasheet, p. 2 — 3. Applications
output current — 40 mA 85 mA V+ = 15V UTD datasheet, p. 3
supply voltage range 3 V — 32 V UTD datasheet, p. 1
input offset voltage — 2 mV 5 mV TA = 25°C (Note 4); 3. Applications UTD datasheet, p. 2 — 3. Applications
gain bandwidth — 1 MHz — V+ = 30V, f = 100kHz, VIN = 10mVRL = 2kΩ, CL = 100pF UTD datasheet, p. 3
cmrr 70 dB 90 dB — DC, TA = 25°C, VCM = 0~V+-1.5V; common; 3. Applications UTD datasheet, p. 2 — 3. Applications
operating temperature (abs max) -40 °C — 85 °C 5. Absolute Maximum Ratings (Note 1) UTD datasheet, p. 2 — 5. Absolute Maximum Ratings (Note 1)
input offset current — 3 nA 50 nA TA = 25°C, IIN(+)- IIN(-), VCM = 0V; 3. Applications UTD datasheet, p. 2 — 3. Applications
input bias current — 45 nA 250 nA TA = 25°C, IIN(+)or IIN(-), VCM = 0V(Note5); 3. Applications UTD datasheet, p. 2 — 3. Applications
slew rate — 0.4 V/µs — V+ = 15V, RL = 2kΩ, VIN = 0.5 to 3VCL = 100pF, Unity Gain UTD datasheet, p. 3
psrr 75 dB 100 dB — DC, TA = 25°C, V+ = 5~30V; 3. Applications UTD datasheet, p. 2 — 3. Applications
input voltage noise density — 40 nV/√Hz — f = 1kHz, Rs = 100Ω, V+ = 30V; equivalent UTD datasheet, p. 3
03 — Alternatives

Closest matches to LM321MF

LM124 2.2× lower input bias current, 1.6× higher operating temperature, 1.5× lower input offset current
LM158 2.2× lower input bias current, 1.6× higher operating temperature, 1.5× lower input offset current
LM258A 2.2× lower input bias current, 2.0× lower input offset voltage, 1.5× lower input offset current
LM158DR 1.5× higher quiescent current, 1.5× higher slew rate, 1.4× higher operating temperature
LM321 4.1× lower quiescent current, similar cmrr, similar gain bandwidth
LM258 2.3× higher quiescent current, 2.2× lower input bias current, 1.5× lower input offset current
LM2904 2.3× higher quiescent current, 2.2× lower input bias current, 1.9× higher operating temperature
LMV358 8.2× lower quiescent current, 4.3× lower supply voltage range, 4.1× lower input bias current
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