1 Features
? Next-generation LM324B and LM2902B
? B versions are drop-in replacements for all
versions of LM224, LM324, and LM2902
? Improved specifications of B version
– Supply range: 3V to 36V (B, BA versions)
– Low input offset voltage: ±2mV (BA version) /
3mV (B version)
– ESD rating: 2kV (HBM), 1.5kV (CDM)
– EMI rejection: integrated RF and EMI filter
– Low input bias current: 50nA maximum (across
–40°C to 125°C)
? Common-mode input voltage range includes V–
? Input voltage differential can be driven up to supply
voltage
? For dual B versions, see LM358B and LM2904B
2 Applications
? Merchant network and server power supply units
? Multi-function printers
? Power supplies and mobile chargers
? Desktop PC and motherboard
? Indoor and outdoor air conditioners
? Washers, dryers, and refrigerators
? AC inverters, string inverters, central inverters, and
voltage frequency drives
? Uninterruptible power supplies
3 Description
The LM324B and LM2902B devices are the
next-generation versions of the industry-standard
operational amplifiers (op amps) LM324 and LM2902,
which include four high-voltage (36V) op amps. These
devices provide outstanding value for cost-sensitive
applications,
with features including low offset (600μV, typical),
common-mode input range to ground, and high
differential input voltage capability.
The LM324B and LM2902B are unity-gain stable
and achieve a low offset voltage maximum of 3mV
2mV maximum for LM324BA and LM2902BA) and
quiescent current of 240μA per amplifier (typical).
High ESD (2kV HBM and 1.5kV CDM) and integrated
EMI and RF filters enable the LM324B and
LM2902B devices to be used in the most rugged,
environmentally challenging applications.
The LM324B and LM2902B can drop-in replace all
versions of the LM224, LM324, and LM2902 devices.
