amplifiers comparators

LM321H

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 LM321H family does

The LM321H/358H/324H family are high voltage bipolar operational amplifiers spanning single, dual, and quad channel variants. They operate on single supplies from 3V to 36V or dual supplies from ±1.5V to ±18V. Key parameters include a 1MHz gain-bandwidth product, 250μA quiescent current per amplifier, and a maximum input offset voltage of 5mV. These devices feature a large output voltage swing reaching Vcc-1.5V and support an operating temperature range of -40°C to +125°C. Engineers typically use them in walkie-talkies, battery management solutions, transducer amplifiers, oscillators, and portable systems requiring robust low voltage performance.

Next step
Start building with LM321H → 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.
Ordering code:
01 — Key specifications

LM321H datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current — 250 µA — per amplifier, typical Gainsil datasheet, p. 6
supply voltage range 3 V — 3 V POWER SUPPLY Gainsil datasheet, p. 3 — Electrical Characteristics
abs max voltage (abs max) -300 mV — 40 V Gainsil datasheet, p. 2 — Absolute Maximum Ratings
input offset voltage drift — 7 µV/°C — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
input offset voltage — 400 µV — VCM = VS/2, TYP at +25 °C Gainsil datasheet, p. 3 — Electrical Characteristics
gain bandwidth — 1 MHz — DYNAMIC PERFORMANCE Gainsil datasheet, p. 3 — Electrical Characteristics
cmrr — 70 dB — VCM = 0V to VS-1.5V Gainsil datasheet, p. 3 — Electrical Characteristics
operating temperature (abs max) -40 °C — 125 °C Gainsil datasheet, p. 2 — Absolute Maximum Ratings
input offset current — 5 nA — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
input bias current — 20 nA — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
slew rate — 0.2 V/µs — G = +1, 2V Output Step; DYNAMIC PERFORMANCE Gainsil datasheet, p. 3 — Electrical Characteristics
channel count — 1 — Gainsil datasheet, p. 2 — Package/Ordering Information
01 — Key specifications

LM324H datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current — 250 µA — per amplifier, typical Gainsil datasheet, p. 6
supply voltage range 3 V — 3 V POWER SUPPLY Gainsil datasheet, p. 3 — Electrical Characteristics
abs max voltage (abs max) -300 mV — 40 V Gainsil datasheet, p. 2 — Absolute Maximum Ratings
input offset voltage drift — 7 µV/°C — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
input offset voltage — 400 µV — VCM = VS/2, TYP at +25 °C Gainsil datasheet, p. 3 — Electrical Characteristics
gain bandwidth — 1 MHz — DYNAMIC PERFORMANCE Gainsil datasheet, p. 3 — Electrical Characteristics
cmrr — 70 dB — VCM = 0V to VS-1.5V Gainsil datasheet, p. 3 — Electrical Characteristics
operating temperature (abs max) -40 °C — 125 °C Gainsil datasheet, p. 2 — Absolute Maximum Ratings
input offset current — 5 nA — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
input bias current — 20 nA — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
slew rate — 0.2 V/µs — G = +1, 2V Output Step; DYNAMIC PERFORMANCE Gainsil datasheet, p. 3 — Electrical Characteristics
channel count — 4 — Gainsil datasheet, p. 2 — Package/Ordering Information
01 — Key specifications

LM358H datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current — 250 µA — per amplifier, typical Gainsil datasheet, p. 6
supply voltage range 3 V — 3 V POWER SUPPLY Gainsil datasheet, p. 3 — Electrical Characteristics
abs max voltage (abs max) -300 mV — 40 V Gainsil datasheet, p. 2 — Absolute Maximum Ratings
input offset voltage drift — 7 µV/°C — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
input offset voltage — 400 µV — VCM = VS/2, TYP at +25 °C Gainsil datasheet, p. 3 — Electrical Characteristics
gain bandwidth — 1 MHz — DYNAMIC PERFORMANCE Gainsil datasheet, p. 3 — Electrical Characteristics
cmrr — 70 dB — VCM = 0V to VS-1.5V Gainsil datasheet, p. 3 — Electrical Characteristics
operating temperature (abs max) -40 °C — 125 °C Gainsil datasheet, p. 2 — Absolute Maximum Ratings
input offset current — 5 nA — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
input bias current — 20 nA — INPUT CHARACTERISTICS Gainsil datasheet, p. 3 — Electrical Characteristics
slew rate — 0.2 V/µs — G = +1, 2V Output Step; DYNAMIC PERFORMANCE Gainsil datasheet, p. 3 — Electrical Characteristics
channel count — 2 — Gainsil datasheet, p. 2 — Package/Ordering Information
03 — Alternatives

Closest matches to LM321H

LMV321IDCKRUMW 5.6× lower quiescent current, 2.6× higher slew rate, 2.6× lower input offset voltage drift
AS321 6.5× higher supply voltage range, 5.0× higher input offset voltage, 1.9× lower operating temperature
LM158 5.5× higher supply voltage range, 5.0× higher input offset voltage, 2.8× higher quiescent current
LM258 6.0× higher quiescent current, 5.5× higher supply voltage range, 5.0× higher input offset voltage
LM258A 5.5× higher supply voltage range, 2.8× higher quiescent current, 2.5× lower input offset current
LMV358 4.2× higher input offset voltage, 3.5× lower input offset voltage drift, 3.1× lower quiescent current
LM321 5.8× higher supply voltage range, 5.0× higher input offset voltage, 2.3× higher input bias current
LM2904 6.0× higher quiescent current, 5.5× higher supply voltage range, 5.0× higher input offset voltage
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