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PDF EL7457C Data sheet ( Hoja de datos )
| Número de pieza | EL7457C | |
| Descripción | 40MHz Non-Inverting Quad CMOS Driver | |
| Fabricantes | Elantec Semiconductor | |
| Logotipo |  |
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EL7457C
40MHz Non-Inverting Quad CMOS Driver
Features
• 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
• 3Ω On Resistance
• Input Level Shifters
• TTL/CMOS Input Compatible
Applications
• CCD Drivers
• Digital Cameras
• Pin Drivers
• Clock / Line Drivers
• Ultrasound Transducer Drivers
• Ultrasonic and RF Generators
• Level Shifting
Ordering Information
Part No.
EL7457CU
EL7457CS
Temp. Range
-40°C to +85°C
-40°C to +85°C
Package
16-Pin QSOP
16-Pin SO
Outline #
MDP0040
MDP0027
© 1998 Élantec, Inc.
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 3Ω. 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
INA 1
OE 2
INB 3
VL 4
GND 5
NC 6
INC 7
IND 8
EL7457C
16 VS+
15 OUTA
14 OUTB
13 NC
12 VH
11 OUTC
10 OUTD
9 VS-
1 page  
EL7457C
40MHz Non-Inverting Quad CMOS Driver
Typical Performance Curves (cont.)
Propagation Delay vs Supply Voltage
3 CL=1000pF, T=25°C
25
20
tD2
15
tD1
10
5
5.0
7.5 10.0 12.5
Supply Voltage (V)
15.0
Rise/Fall Time vs Load
5 VS+=15V, T=25°C
140
120
100
80
60
40
20 tF tR
0
100
470 1000 2200 4700
Load Capacitance (pF)
10000
Supply Current Per Channel vs Frequency
7 CL=1000pF, T=25°C
100
VS+=15V
10
1.0
0.1
10k
VS+=10V
VS+=5V
100k 1M
Frequency (Hz)
10M
5
Propagation ,Delay vs Temperature
4 CL=1000pF, VS+=15V
18
16
14 tD2
12
tD1
10
8
6
-50 -25
0 25 50 75
Temperature (°C)
100 125
Supply Current Per Channel vs Capacitive Load
6 VS+=VH=10V, VS-=VL=0V, T=25°C, f=100kHz
12
10
8
6
4
2
0
100
1k
Load Capacitance (pF)
10k
5 Page 
EL7457C
40MHz Non-Inverting Quad CMOS Driver
if the calculated value of θja is less than 110°C/W, the
application must be derated to prevent premature failure
of the device, either by reducing the switching fre-
quency, the capacitive load or the maximum operating
temperature.
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet EL7457C.PDF ] | |
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