EL745 ELANTEC [Elantec Semiconductor], EL745 Datasheet

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EL745

Manufacturer Part Number
EL745
Description
40MHz Non-Inverting Quad CMOS Driver
Manufacturer
ELANTEC [Elantec Semiconductor]
Datasheet

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© 1998 Élantec, Inc.
Features
Applications
Ordering Information
• Clocking Speeds Up To 40MHz
• 4 Channels
• 12 ns tr/tf at 1000pF Cload
• 1ns Rise and Fall Time Mismatch
• 1.5ns Prop Delay Mismatch
• Low Quiescent Current, <1mA
• Fast Output Enable Function, 12ns
• Wide Output Voltage Range
• 8V >VL >-5V
• -2V < VH < 15V
• 2A Peak Drive
• 3 On Resistance
• Input Level Shifters
• TTL/CMOS Input Compatible
• CCD Drivers
• Digital Cameras
• Pin Drivers
• Clock / Line Drivers
• Ultrasound Transducer Drivers
• Ultrasonic and RF Generators
• Level Shifting
EL7457CU
EL7457CS
Part No.
-40°C to +85°C
-40°C to +85°C
Temp. Range
16-Pin QSOP
16-Pin SO
Package
MDP0040
MDP0027
Outline #
EL7457C
40MHz Non-Inverting Quad CMOS Driver
General Description
The EL7457C is an ultra-high speed, non-inverting quad CMOS
driver. It is capable of running at clock rates up to 40MHz and features
2A peak drive capability and a nominal on-resistance of just 3 . The
EL7457C is ideal for driving highly capacitive loads, such as storage
and vertical clocks in CCD applications. It is also well suited to ATE
pin driving, level-shifting and clock-driving applications.
The EL7457C is capable of running from single or dual power sup-
plies while using ground referenced inputs. Each output can be
switched to either the high (VH) or low (VL) supply pins, depending
on the related input pin. The inputs are compatible with both 3V and
5V CMOS and TTL logic. The output enable (OE) pin can be used to
put the outputs into a high-impedance state. This is especially useful in
CCD applications, where the driver should be disabled during power
down.
The EL7457C also features very fast rise and fall times which are
matched to within 1ns. The propagation delay is also matched between
rising and falling edges to within 2ns.
The EL7457C is available in both the 16-Pin QSOP and 16-Pin SOIC
packages. It is specified for operation over the -40°C to +85°C temper-
ature range.
Pin Layout Diagram
GND
INA
INB
INC
IND
OE
NC
VL
1
2
3
4
5
6
7
8
EL7457C
16
15
14
13
12
11
10
9
V
OUTA
OUTB
NC
VH
OUTC
OUTD
V
S
S
+
-

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EL745 Summary of contents

Page 1

... This is especially useful in CCD applications, where the driver should be disabled during power down. The EL7457C also features very fast rise and fall times which are matched to within 1ns. The propagation delay is also matched between rising and falling edges to within 2ns. ...

Page 2

... EL7457C 40MHz Non-Inverting Quad CMOS Driver Absolute Maximum Ratings Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Supply Voltage ( GND) S Input Voltage Important Note: All parameters having Min/Max specifications are guaranteed ...

Page 3

... -100mA OUT I = +100mA OUT Source Sink Inputs = 1000pF 1000pF 1000pF 1000pF 1000pF 1000pF L 3 EL7457C Min Typ Max Units 2.4 V 0.1 10 µA 0.8 V 0.1 10 µ 0.1 10 µA 2.0 A 2 ...

Page 4

... EL7457C 40MHz Non-Inverting Quad CMOS Driver Typical Performance Curves Max Power 11 1.0 0.8 0.6 0.4 =158°C/W, QSOP- Temperature (°C) Quiescent Supply Current vs Supply Voltage 9 T=25°C 2.0 1.8 1.6 1.4 1.2 All Inputs = 0 1.0 0.8 0.6 0.4 0 Supply Voltage (V) Rise/Fall Time vs Supply Voltage 1 C =1000pF, T=25° ...

Page 5

... 2200 4700 10000 100 V +=10V S 1M 10M 5 EL7457C Propagation ,Delay vs Temperature C =1000pF, V +=15V - 100 Temperature (°C) Supply Current Per Channel vs Capacitive Load V +=VH=10V, V -=VL=0V, T=25°C, f=100kHz Load Capacitance (pF) ...

Page 6

... EL7457C 40MHz Non-Inverting Quad CMOS Driver Nominal Operating Voltage Range PIN MIN MAX 15V GND - 2. 15V Timing Diagrams 5V Input 2.5V 0 90% Output 10 ...

Page 7

... Standard Test Configuration VS+ 10k INA EN INB VL 4.7µ F 0.1µ F INC IND 40MHz Non-Inverting Quad CMOS Driver 0.1µ 1000pF 1000pF EL7457C 4.7µ F OUTA 1000pF OUTB VH 0.1µ F 4.7µ F OUTC OUTD 1000pF 0.1µ F 4.7µ F ...

Page 8

... EL7457C 40MHz Non-Inverting Quad CMOS Driver Pin Description Pin Name 1 INA Input Channel Output Enable 3 INB Input Channel Low Voltage Input Pin 5 GND Input Logic Ground Connection 7 INC Input Channel C 8 IND Input Channel Negative Supply Voltage ...

Page 9

... Block Diagram INPUT Level Shifter GND 40MHz Non-Inverting Quad CMOS Driver OE VH 3-State OUTPUT Control VL 9 EL7457C ...

Page 10

... EL7457C is driving highly capacitive loads. Power Dissipation Calculation When switching at high speeds, or driving heavy loads, the EL7457C drive capability is limited by the rise in die temperature brought about by internal power dissipation. devices will pull For reliable operation die temperature must be kept ...

Page 11

... Non-Inverting Quad CMOS Driver quency, the capacitive load or the maximum operating temperature. 11 EL7457C ...

Page 12

... EL7457C 40MHz Non-Inverting Quad CMOS Driver General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir- cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. É ...

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