1995 Elantec, Inc.
EL2250C/EL2450C
General Description
The EL2250C/EL2450C are part of a family of the electronics indus-
tries fastest single supply op amps available. Prior single supply op
amps have generally been limited to bandwidths and slew rates 1/4 that
of the EL2250C/EL2450C. The 125 MHz bandwidth, 275 V/
sec 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 feed-
back 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 com-
pletely to ground without saturating. The outputs can also drive to
within 1.2V of the top rail. The EL2250C/EL2450C will output
±100
mA and will operate with single supply voltages as low as 2.7V, mak-
ing them ideal for portable, low power applications.
The EL2250C/EL2450C are available in plastic DIP and SOIC pack-
ages in industry standard pin outs. Both parts operate over the
industrial temperature range of -40
°C to +85°C, and are part of a fam-
ily of single supply op amps. For single amplifier applications, see the
EL2150C/EL2157C. For dual and triple amplifiers with power down
and output voltage clamps, see the EL2257C/EL2357C.
Connection Diagrams
EL2250C SO, P-DIP
EL2450C SO, P-DIP
Top View
Features
Specied for +3V, +5V, or
±5V
Applications
Large Input Common Mode Range
0V < VCM < VS -1.2V
Output Swings to Ground Without
Saturating
-3 dB Bandwidth = 125 MHz
± 0.1 dB Bandwidth = 30 MHz
Low Supply Current = 5 mA (per
amplier)
Slew Rate = 275 V/
sec
Low Offset Voltage = 2 mV max
Output Current =
±100 mA
High Open Loop Gain = 80 dB
Differential Gain = 0.05%
Differential Phase = 0.05
°
Applications
Video Amplier
PCMCIA Applications
A/D Driver
Line Driver
Portable Computers
High Speed Communications
RGB Printer, FAX, Scanner
Broadcast Equipment
Active Filtering
Ordering Information
Part No.
Temp. Range
Package
Outline #
EL2250CN
-40
°C to +85°C
8 Pin PDIP
MDP0031
EL2250CS
-40
°C to +85°C
8 Pin SOIC
MDP0027
EL2450CN
-40
°C to +85°C
14 Pin PDIP
MDP0031
EL2450CS
-40
°C to +85°C
14 Pin SOIC
MDP0027
EL2250C/EL2450C
125 MHz Single Supply Dual/Quad Op Amps
August
1998,
Rev
B