125 MHz Single Supply/ Clamping Op Amps - Elantec
Description
EL2150C EL2157C
EL2150C EL2157C
125 MHz Single Supply Clamping Op Amps
Features
Specified for a 3V a 5V or g 5V Applications Power Down to 0 mA (EL2157C) Output Voltage Clamp (EL2157C) Large Input Comon Mode Range 0V k VCM k Vs - 1 2V Output Swings to Ground Without Saturating b 3 dB Bandwidth e 125 MHz g 0 1 dB Bandwidth e 30 MHz Low Supply Current e 5 mA Slew Rate e 275V ms Low Offset Voltage e 2 mV max (PDIP and SO Packages) Output Current e g 100 mA High Open Loop Gain e 80 dB Differential Gain e 0 05% Differential Phase e 0 05
General Description
The EL2150C EL2157C are the electronics industry’s fastest single supply op amps available Prior single supply op amps have generally been limited to bandwidths and slew rates that of the EL2150C EL2157C The 125 MHz bandwidth 275 V ms slew rate and 0 05% 0 05 differential gain differential phase makes this part ideal for single or dual supply video speed applications With its voltage feedback architecture this amplifier can accept reactive feedback networks allowing them to be used in analog filtering applications The inputs can sense signals below the bottom supply rail and as high as 1 2V below the top rail Connecting the load resistor to ground and operating from a single supply the outputs swing completely to ground without saturating The outputs can also drive to within 1 2V of the top rail The EL2150C EL2157C will output g 100 mA and will operate with single supply voltages as low as 2 7V making it ideal for portable low power applications The EL2157C has a high speed disable feature Applying a low logic level to this pin reduces the supply current to 0 mA within 50 ns This is useful for both multiplexing and reducing power consumption The EL2157C also has an output voltage clamp feature This clamp is a fast recovery ( k 7 ns) output clamp that prevents the output voltage from going above the preset clamp voltage This feature is desirable for A D applications as A D converters can re...
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