Datasheet ADA4897-2-KGD (Analog Devices)

Low Distortion, High Speed Rail-to-Rail Input/Output Amplifier Known Good Die ADA4897-2-KGD FEATURES GENERAL DESCRIPTION High speed
The ADA4897-2-KGD1 is a high speed amplifier with rail-to-
230 MHz, –3 dB bandwidth (G = +1)
rail input and output that operates on low supply voltages and
120 V/µs slew rate
is optimized for high performance and a wide dynamic signal
Low distortion
range. The ADA4897-2-KGD has low noise (1 nV/√Hz,
−93 dBc at 1 MHz SFDR
2.8 pA/√Hz) and low distortion (−93 dBc at 1 MHz). In
−61 dBc at 5 MHz SFDR
applications that use a fraction of or the entire input dynamic
Low noise
range and require low distortion, the ADA4897-2-KGD is an
1 nV/√Hz voltage noise
ideal choice.
2.8 pA/√Hz current noise
Many rail-to-rail input amplifiers have an input stage that switches
Low offset voltage: 500 µV maximum
from one differential pair to another as the input signal crosses a
Low power: 3.2 mA/amplifier supply current maximum
threshold voltage, which causes distortion. The ADA4897-2-KGD
Disable mode
has a unique feature that al ows the user to select the input
Wide supply range: 3 V to 10 V
crossover threshold voltage through the DISABLEx pin. This
Known good die (KGD): these die are fully guaranteed to data sheet specifications
feature controls the voltage at which the complementary transistor input pairs switch. The ADA4897-2-KGD also has
APPLICATIONS
intrinsically low crossover distortion. With its wide supply
Low noise preamplifiers
voltage range (3 V to 10 V) and wide bandwidth (230 MHz),
Ultrasound amplifiers
the ADA4897-2-KGD amplifier is designed to work in a variety
PLL loop filters
of applications where speed and performance are needed on low
Active filters
supply voltages. The ADA4897-2-KGD has a disable mode that
ADC drivers
is control ed via the DISABLEx pin.
Low voltage instrumentation
The ADA4897-2-KGD is rated to work over the industrial
DAC buffers
temperature range of –40°C to +125°C.

Additional application and technical information can be found in the ADA4897-2 data sheet. 1 Protected by U.S. Patent Numbers 6,486,737B1 and 6,518,842B1.
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Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±5 V SUPPLY +5 V SUPPLY +3 V SUPPLY ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS OUTLINE DIMENSIONS DIE SPECIFICATIONS AND ASSEMBLY RECOMMENDATIONS ORDERING GUIDE