AZ100ELT21
ARIZONA MICROTEK, INC.
Differential PECL to CMOS/TTL Translator
FEATURES
PACKAGE AVAILABILITY
•
•
•
•
•
•
•
3.5ns Typical Propagation Delay
Differential PECL Inputs
CMOS/TTL Outputs
Flow Through Pinouts
Operating Range of 3.0V to 5.5V
Direct Replacement for ON Semiconductor
MC100ELT21
Use AZ100ELT21 for 10K Applications
PACKAGE
SOIC 8
SOIC 8 T&R
SOIC 8 T&R
TSSOP 8
TSSOP 8 T&R
TSSOP 8 T&R
PART NO.
AZ100ELT21D
AZ100ELT21DR1
AZ100ELT21DR2
AZ100ELT21T
AZ100ELT21TR1
AZ100ELT21TR2
MARKING
AZM100ELT21
AZM100ELT21
AZM100ELT21
AZHLT21
AZHLT21
AZHLT21
DESCRIPTION
The AZ100ELT21 is a differential PECL to CMOS/TTL translator. Because PECL (Positive ECL) levels are
used, only V
CC
and ground are required. The small outline 8-lead packaging and the single gate of the ELT21 makes
it ideal for those applications where space, performance and low power are at a premium.
The ELT21 provides a V
BB
output for single-ended use or a DC bias reference for AC coupling to the device.
For single-ended input applications, the V
BB
reference should be connected to one side of the D0/D0 differential
¯¯
input pair. The input signal is then fed to the other D0/D0 input. The V
BB
pin should be used only as a bias for the
¯¯
ELT21 as its sink/source capability is limited. When used, the V
BB
pin should be bypassed to ground via a 0.01µF
capacitor.
NOTE: Specification in ECL/PECL tables are valid when thermal equilibrium is established.
LOGIC DIAGRAM AND PINOUT ASSIGNMENT
PIN DESCRIPTION
PIN
Q
D0, D0
¯¯
V
CC
V
BB
GND
NC
FUNCTION
CMOS/TTL Output
Differential Inputs
Positive Supply
Reference Voltage Output
Ground
No Connect
NC
1
CMOS/TTL
8
VCC
D0
2
PECL
7
Q
D0
3
6
NC
VBB 4
5
GND
1630 S. STAPLEY DR., SUITE 125
•
MESA, ARIZONA 85204
•
USA
•
(480) 962-5881
•
FAX (480) 890-2541
www.azmicrotek.com
AZ100ELT21
Absolute Maximum Ratings are those values beyond which device life may be impaired.
Symbol
V
CC
T
A
T
STG
Character
DC Supply Voltage (Referenced to GND)
Operating Temperature Range (In Free-Air)
Storage Temperature Range
Value
7.0
-40 to +85
-65 to +150
Unit
V
°C
°C
CMOS/TTL DC CHARACTERISTICS
(V
CC
= +3.0V to +5.5V)
Symbol
V
OH
V
OL
I
CC
I
CC
I
OS
Characteristic
Output HIGH Voltage
Output LOW Voltage
Power Supply Current
Power Supply Current
Output Short Circuit Current
Min
V
CC
- 0.5
Typ
Max
0.5
15
17.6
Unit
V
V
mA
mA
mA
Condition
I
OH
= -24 mA
I
OL
= 24 mA
0°C to 85°C
-40°C to 85°C
9.0
9.0
100
100K LVPECL DC Characteristics
(V
CC
= +3.3V)
Symbol
Characteristic
V
IH
Input HIGH Voltage
V
IL
Input LOW Voltage
V
BB
Reference Voltage
V
PP
Minimum Input Swing
1
V
CMR
Common Mode Range
V
CC
Input LOW Current
I
IL
I
IH
Input HIGH Current
150
1.
200mV input guarantees full logic swing at the output.
Min
2135
1490
1920
200
1.2
0.5
-40°C
Typ
Max
2420
1825
2090
Min
2135
1490
1920
200
1.2
0.5
0°C
Typ
Max
2420
1825
2090
V
CC
150
Min
2135
1490
1920
200
1.2
0.5
25°C
Typ
Max
2420
1825
2090
V
CC
150
Min
2135
1490
1920
200
1.2
0.5
85°C
Typ
Max
2420
1825
2090
V
CC
150
Unit
mV
mV
mV
mV
V
µA
µA
100K PECL DC Characteristics
(V
CC
= +5.0V)
Symbol
Characteristic
V
IH
Input HIGH Voltage
V
IL
Input LOW Voltage
V
BB
Reference Voltage
V
PP
Minimum Input Swing
1
V
CMR
Common Mode Range
V
CC
Input LOW Current
I
IL
I
IH
Input HIGH Current
150
1.
200mV input guarantees full logic swing at the output.
Min
3835
3190
3620
200
1.2
0.5
-40°C
Typ
Max
4120
3525
3790
Min
3835
3190
3620
200
1.2
0.5
0°C
Typ
Max
4120
3525
3790
V
CC
150
Min
3835
3190
3620
200
1.2
0.5
25°C
Typ
Max
4120
3525
3790
V
CC
150
Min
3835
3190
3620
200
1.2
0.5
85°C
Typ
Max
4120
3525
3790
V
CC
150
Unit
mV
mV
mV
mV
V
µA
µA
AC Characteristics
(V
CC
= +3.0V to +5.5V)
Symbol
t
PLH
/ t
PHL
1. C
L
=20pF
Characteristic
Propagation Delay to Output
1
V
CC
= 4.5V to 5.5V
V
CC
= 3.0V to 3.6V
Min
2.0
3.5
-40°C
Typ
Max
5.5
7.0
Min
2.0
3.5
0°C
Typ
Max
5.5
7.0
Min
2.0
3.5
25°C
Typ
Max
5.5
7.0
Min
2.0
3.5
85°C
Typ
Max
5.5
7.0
Unit
ns
March 2002 * REV - 3
www.azmicrotek.com
2
AZ100ELT21
PACKAGE DIAGRAM
SOIC 8
NOTES:
1.
DIMENSIONS D AND E DO NOT
INCLUDE MOLD PROTRUSION.
2.
MAXIMUM MOLD PROTRUSION
FOR D IS 0.15mm.
3.
MAXIMUM MOLD PROTRUSION
FOR E IS 0.25mm.
DIM
A
A
1
A
2
A
3
b
p
c
D
E
e
H
E
L
L
p
Q
v
w
y
Z
θ
MILLIMETERS
MIN
MAX
1.35
1.75
0.10
0.25
1.28
1.57
0.25
0.36
0.49
0.19
0.25
4.80
5.00
3.80
4.00
1.27
5.80
6.20
1.05
0.40
1.27
0.60
0.70
0.25
0.25
0.10
0.30
0.70
O
8
O
0
INCHES
MIN
MAX
0.053
0.069
0.004
0.010
0.050
0.062
0.01
0.014
0.019
0.0075
0.0100
0.19
0.20
0.15
0.16
0.050
0.228
0.244
0.041
0.016
0.050
0.024
0.028
0.01
0.01
0.004
0.012
0.028
O
0
8
O
March 2002 * REV - 3
www.azmicrotek.com
3
AZ100ELT21
PACKAGE DIAGRAM
TSSOP 8
NOTES:
1.
DIMENSIONS D AND E DO NOT
INCLUDE MOLD PROTRUSION.
2.
MAXIMUM MOLD PROTRUSION
FOR D IS 0.15mm.
3.
MAXIMUM MOLD PROTRUSION
FOR E IS 0.25mm.
DIM
A
A
1
A
2
A
3
b
p
c
D
E
e
H
E
L
L
p
v
w
y
Z
θ
MILLIMETERS
MIN
MAX
1.10
0.05
0.15
0.75
0.95
0.25
0.22
0.40
0.13
0.23
2.90
3.10
2.90
3.10
0.65
4.75
5.05
0.95
0.40
0.70
0.10
0.08
0.10
0.38
0.64
O
6
O
0
March 2002 * REV - 3
www.azmicrotek.com
4
AZ100ELT21
Arizona Microtek, Inc. reserves the right to change circuitry and specifications at any time without prior notice. Arizona Microtek, Inc.
makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Arizona
Microtek, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all
liability, including without limitation special, consequential or incidental damages. Arizona Microtek, Inc. does not convey any license
rights nor the rights of others. Arizona Microtek, Inc. products are not designed, intended or authorized for use as components in systems
intended to support or sustain life, or for any other application in which the failure of the Arizona Microtek, Inc. product could create a
situation where personal injury or death may occur. Should Buyer purchase or use Arizona Microtek, Inc. products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Arizona Microtek, Inc. and its officers, employees, subsidiaries,
affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly
or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Arizona Microtek, Inc. was negligent regarding the design or manufacture of the part.
March 2002 * REV - 3
www.azmicrotek.com
5
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