List of Articles Variable gain Open Access Article Abstract Page Full-Text 1 - Design of a variable gain CMOS transmission impedance amplifier for optical receiver amplifier Mehdi Faraji Ebrahim Borzabadi Hossein Pourghasem Open Access Article Abstract Page Full-Text 2 - A Bulk-Driven Variable Gain OTA in 180nm CMOS Technology Mohammad Anvari Farshad Babazadeh