HT358A Low Power Dual Operational Amplifier The HT358A contains two independent high gain operational amplifiers with internal frequency compensation. The op-amps operate over a wide voltage range. The low power drain makes the HT358A a good choice for battery operation. Internally frequency compensated for unity gain Large DC voltage gain Single or Split Supply Operation Input common-mode voltage range to ground Large output voltage swing: 0V DC to VCC-1.5V DC Power drain s.