EL2005/EL2005C
High Accuracy Fast Buffer
Features
# Low input currentÐ50 pA
# Low offset and driftÐ
General Description
The EL2005 is a high-speed, FET input buffer similar to
ELH0033 and EL2004 but with input specifications significant-
ly improved over the previous types. The input stage employs a
cascode configuration to maintain constant input characteris-
2 mV/25 mV/ C
§
# High slew rateÐ1500 V/ms
# Fast rise and fall timeÐ2.5 ns
# High input resistanceÐ1000 GX
# BandwidthÐ140 MHz
g
tics over the full 10V input range. The input looks like a 3 pF
capacitor to ground in almost all cases since the DC bias current
is constant with input voltage. In sample and hold circuits this
results in an order of magnitude improvement in hold charac-
teristics. Input offset voltage and offset voltage drift are also
improved a factor of two over previous types.
# Pin compatible with ELH0033
# MIL-STD-883 Revision C devices
manufactured in U.S.A.
These excellent DC characteristics are complemented by a wide
140 MHz bandwidth while the 1500 V/ms slew rate and excel-
lent phase linearity of the ELH0033 family are preserved allow-
ing direct plug-in replacement for upgraded performance. (For
even faster operation see EL2004.)
Advantages
# No input loading
# Input current independent of
input voltage
Elantec facilities comply with MIL-I-45208A and are MIL-
STD-1772 certified. Elantec’s Military devices comply with
MIL-STD-883B Revision C and are manufactured in our rigidly
controlled, ultra-clean facilities in Milpitas, California. For ad-
ditional information on Elantec’s Quality and Reliability Assur-
ance Policy and procedures request brochure QRA-1.
# Eliminates offset adjustments
# Drives cables directly
Ordering Information
Ý
MDP0002
MDP0002
MDP0002
Part No.
EL2005CG
EL2005G
Temp. Range Package Outline
b
a
25 C to 85 C
TO-8
TO-8
TO-8
§
§
55 C to 125 C
b
b
a
§
§
a
EL2005G/883B 55 C to 125 C
§
§
Simplified Schematic
Connection Diagram
2005–1
Top View
Note: Case is electrically isolated.
2005–2
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a ‘‘controlled document’’. Current revisions, if any, to these
Ý
CMS 2005DS
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation. Patent pending.
©
1989 Elantec, Inc.
ELANTEC [ ELANTEC SEMICONDUCTOR ]
