AD8028-KGD Datasheet

• High speed
• 190 MHz, –3 dB bandwidth (G = +1)
• 100 V/µs slew rate
• Low distortion
• 120 dBc @ 1 MHz SFDR
• 80 dBc @ 5 MHz SFDR
• Selectable input crossover threshold
• Low noise
• 4.3 nV/√Hz
• 1.6 pA/√Hz
• Low offset voltage: 900 µV max
• Low power: 6.5 mA/amplifier supply current
• Disable mode
• Wide supply range: 2.7 V to 12 V
• Known good die (KGD): these die are fully guaranteed to data sheet specifications

• Filters
• ADC drivers
• Level shifting
• Buffering
• Professional video
• Low voltage instrumentation

The AD8028-KGD-CHIP1 is a high speed amplifier with rail-to-rail input and output that operates on low supply voltages and is optimized for high performance and wide dynamic signal range. The AD8028-KGD-CHIP has low noise (4.3 nV/√Hz,1.6 pA/√Hz) and low distortion (120 dBc at 1 MHz). In applications that use a fraction of or the entire input dynamic range and require low distortion, the AD8028-KGD-CHIP is an ideal choice.

Many rail-to-rail input amplifiers have an input stage that switches from one differential pair to another as the input signal crosses a threshold voltage, which causes distortion. The AD8028-KGD-CHIP has a unique feature that allows the user to select the input crossover threshold voltage through the SELECT pin. This feature controls the voltage at which the complementary transistor input pairs switch. The AD8028-KGD-CHIP also has intrinsically low crossover distortion. With its wide supply voltage range (2.7 V to 12 V) and wide bandwidth (190 MHz), the AD8028-KGD-CHIP amplifier is designed to work in a variety of applications where speed and performance are needed on low supply voltages. The AD8028-KGD-CHIP has a disable mode that is controlled via the SELECT pin.

The AD8028-KGD-CHIP is rated to work over the industrial temperature range of –40°C to +125°C.

Additional application and technical information can be found in the AD8028 data sheet.