January 2001
CLC502
Clamping, Low Gain Op Amp with Fast 14-bit Settling
General Description
Features
n Output clamping with fast recovery
n 0.0025% settling in 25ns (32ns max)
n Low power, 170mW
The CLC502 is an operational amplifier designed for low
gain applications requiring output voltage clamping. This
feature allows the designer to set maximum positive and
negative output voltage levels for the amplifier – thus allow-
ing the CLC502 to protect downstream circuitry, such as
delicate converter systems from destructive transients or
signals which would otherwise cause saturation. The over-
load recovery time of only 8ns permits systems to resume
operation quickly after overdrive.
n Low distortion. −50dBc at 20MHz
Applications
n Output clamping applications
n High accuracy A/D systems (12-14 bits)
n High accuracy D/A converters
n Pulse amplitude modulation systems
High accuracy systems will also benefit from the CLC502’s
fast, accurate settling. Settling to 0.0025% in 25ns (32ns
guaranteed over temperature), the CLC502 is ideal as the
input amplifier in high accuracy (12 bits and above) A/D
systems. Unlike most other high speed op amps, the
CLC502 is free of settling tails. And, as the settling plots
show, settling to 0.01% accuracy is an even faster 18ns
typical.
Clamped Pulse Response (8x Overdrive)
The CLC502 is also useful in other applications which re-
±
±
quire low gain amplification ( 1 to 8) and the clamping or
overload recovery features. For example, even low resolu-
tion imaging circuits, which often have to cope with overload-
ing signal levels, can benefit from clamping and overload
recovery.
The CLC502 is available in several versions to meet a
variety of requirements. A three-letter suffix determines the
version:
Enhanced Solutions (Military/Aerospace)
SMD Number: 5962-91743
DS012754-1
*
*
Space level versions also available.
For more information, visit http://www.national.com/mil
Connection Diagram
DS012754-2
Pinout
DIP & SOIC
Ordering Information
Package
Temperature Range
Industrial
Part Number
Package
Marking
NSC
Drawing
N08E
8-pin Plastic DIP
−40˚C to +85˚C
−40˚C to +85˚C
CLC502AJP
CLC502AJE
CLC502AJP
CLC502AJE
8-pin Plastic SOIC
M08A
© 2001 National Semiconductor Corporation
DS012754
www.national.com