ELANT EL7457CU, EL7457CS Datasheet
EL7457C
40MHz Non-Inverting Quad CMOS Driver
EL7457C
Features
• Clocking Speeds Up To 40MHz
• 4 Channels
• 12 ns tr/tf at 1000 pF 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
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-s h iftin g and clock-driving ap pl ic ations.
The EL7457C is capable of running from si ngle or dual power su pplies 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 logi c. The outp ut en ab le (OE) pin can b e u sed 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 pro pagation de lay is also match ed 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 temperature rang e.
Ordering Information
Part No. Temp. Range Package Outline #
EL7457CU -40°C to +85°C 16-Pin QSOP MDP0040 EL7457CS -40°C to +85°C 16-Pin SO MDP0027
© 1998 Élantec, Inc.
Pin Layout Diagram
INA
1
OE
2
3
INB
VL
4
5
GND
NC
6
INC OUTD
7
IND
8 9
EL7457C
VS+
16
OUTA
15
OUTB
14
NC
13
VH
12
OUTC
11
10
VS-
December 7, 1999
EL7457C
40MHz Non-Inverting Quad CMOS Driver
EL7457C
Absolute Maximum Ratings (T
Absolute maximum ratings are those values b eyond whic h the device
could be permanently damaged. Absolute maximum ratings are stress
ratings only and functional device operation is not implied.
Supply Voltage (V
Input Voltage GND -0.3V, V
+ to GND) +16.5V
S
= 25°C)
A
+ +0.3V
S
Continuous Output Current 100mA
Storage Temperature Range -65°C to +150°C
Ambient Operating Temperature -40°C to +85°C
Operating Junction Temperature 125°C
Power Dissipation: See Curves
Maximum ESD 2kV
Important Note:
All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the
specified temperature and are pulsed tests, therefore: T
= TC = TA.
J
Electrical Characteristics
VS+ = +5V, VS- = -5V, VH = +5V, VL = -5V, TA = 25°C, unless otherwise specified
Parameter Description Condition Min Typ Max Units
Input
V
IH
I
IH
V
IL
I
IL
C
in
R
in
Output
R
OV1
R
OV2
I
Leak
I
PK
Power Supply
I
S
Switching Characteristics
t
R
t
F
t
RFdelta
t
D-1
t
D-2
t
Ddelta
T
enable
T
disable
Logic “1” Input Voltage 2.0 V Logic “1” Input Current VIH = 5V 0.1 10 µA Logic “0” Input Voltage 0.8 V Logic “0” Input Current VIL = 0V 0.1 10 µA
Input Capacitance 3.5 pF
Input Resistance 50 MΩ
ON Resistance VH to OUTx I ON Resistance VL to OUTx I
= -100mA 4.5 6 Ω
OUT
= +100mA 4 6 Ω
OUT
Output Leakage Current VH = VS+, VL = VS-0.110µA
Peak Output Current Source 2.0 A
Sink 2.0 A
Power Supply Current Inputs = VS+ 0.5 1.5 mA
Rise Time CL = 1000pF 13.5 ns
Fall Time CL = 1000pF 13 ns
tR, tF Mismatch CL = 1000pF 0.5 ns Turn-Off Delay Time CL = 1000pF 12.5 ns Turn-On Delay Time CL = 1000pF 14.5 ns t
- T
Mismatch CL = 1000pF 2 ns
D-1
D-2
Enable Delay Time 12 ns Disable Delay Time 12 ns
2
EL7457C
40MHz Non-Inverting Quad CMOS Driver
Electrical Characteristics
VS+ = +15V, VS- = 0V, VH = +15V, VL = 0V , TA = 25°C, unless otherwise specified
Parameter Description Condition Min Typ Max Units
Input
V
IH
I
IH
V
IL
I
IL
C
in
R
in
Output
R
OV1
R
OV2
I
leak
I
PK
Power Supply
I
S
Switching Characteristics
t
R
t
F
t
RFdelta
t
D-1
t
D-2
t
Ddelta
T
enable
T
disable
Logic “1” Input Voltage 2.4 V Logic “1” Input Current VIH = 5V 0.1 10 µA Logic “0” Input Voltage 0.8 V Logic “0” Input Current VIL = 0V 0.1 10 µA
Input Capacitance 3.5 pF
Input Resistance 50 MΩ
ON Resistance VH to OUT I ON Resistance VL to OUT I
= -100mA 3.5 5 Ω
OUT
= +100mA 3 5 Ω
OUT
Output Leakage Current VH = VS+, VL = VS-0.110µA
Peak Output Current Source 2.0 A
Sink 2.0 A
Power Supply Current Inputs = VS+0.82mA
Rise Time CL = 1000pF 11 ns
Fall Time CL = 1000pF 12 ns
tR, tF Mismatch CL = 1000pF 1 ns
Turn-Off Delay Time CL = 1000pF 11.5 ns
Turn-On Delay Time CL = 1000pF 13 ns
t
- t
Mismatch CL = 1000pF 1.5 ns
D-1
D-2
Enable Delay Time 12 ns
Disable Delay Time 12 ns
EL7457C
3
EL7457C
40MHz Non-Inverting Quad CMOS Driver
EL7457C
Typical Performance Curves
Max Power
11
1.0
0.8
0.6
0.4
Max Power(W)
0.2
0
Quiescent Supply Current vs Supply Voltage
9
T=25°C
2.0
1.8
1.6
1.4
1.2
1.0
0.8
Supply Current (mA)
0.6
0.4
0.2
0
Rise/Fall Time vs Supply Voltage
1
CL=1000pF, T=25°C
25
θja=158°C/W, QSOP-16
25 10075050
Temperature (°C)
All Inputs = 0
815
5
Supply Voltage (V)
θja=110°C /W , SO - 16
All Inputs = VS+
11
Switch Threshold vs Supply Voltage
10
T=25°C
1.8
High Limit = 2.4V
1.6
VH to OUT
10
Hysteresis
15
1.4
Input voltage (V)
1.2
1.0
“On” Resistance vs Supply Voltage
8
I
=100mA, T=25°C
OUT
9
8
7
6
5
“On” Resistance (Ω)
4
VL to OUT
3
12
2
5
Rise/Fal l Time vs Temperature
2
CL=1000pF, VS+=15V
16
Low Limit = 0.8V
71512510
Supply Voltage (V)
Supply Voltage (V)
20
t
R
15
t
Rise/Fall Time (ns)
10
5
5
F
7.5 15
Supply Voltage (V)
12.5
10
14
12
10
Rise/Fall Time (n s)
8
6
-50
t
F
0
t
R
50
Temperature (°C)
100
150
4
Loading...