40MHz Non-Inverting Quad CMOS Driver Features 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. 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 EL7457C EL7457C The EL7457C is capable of running from single or dual power supplies 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 temperature range. 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 Pin Layout Diagram 1 16 VS+ OE 2 15 OUTA INB 3 14 OUTB VL 4 13 NC GND 5 12 VH NC 6 11 OUTC INC 7 10 OUTD IND 8 9 VS- EL7457C © 1998 Élantec, Inc. December 7, 1999 INA EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver Absolute Maximum Ratings (T = 25°C) A Continuous Output Current Storage Temperature Range Ambient Operating Temperature Operating Junction Temperature Power Dissipation: Maximum ESD 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 (VS+ to GND) Input Voltage +16.5V GND -0.3V, VS+ +0.3V 100mA -65°C to +150°C -40°C to +85°C 125°C See Curves 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: TJ = TC = TA. Electrical Characteristics VS+ = +5V, VS- = -5V, VH = +5V, VL = -5V, TA = 25°C, unless otherwise specified Parameter Description Condition Min Typ Max Units VIH = 5V 0.1 10 µA VIL = 0V 0.1 Input VIH Logic “1” Input Voltage IIH Logic “1” Input Current 2.0 V VIL Logic “0” Input Voltage IIL Logic “0” Input Current 0.8 V 10 µA Cin Input Capacitance 3.5 pF Rin Input Resistance 50 MΩ Output ROV1 ON Resistance VH to OUTx IOUT = -100mA 4.5 6 Ω ROV2 ON Resistance VL to OUTx IOUT = +100mA 4 6 Ω ILeak Output Leakage Current VH = VS+, VL = VS- 0.1 10 µA IPK Peak Output Current Source 2.0 A Sink 2.0 A Inputs = VS+ 0.5 Power Supply IS Power Supply Current 1.5 mA Switching Characteristics tR Rise Time CL = 1000pF 13.5 ns tF Fall Time CL = 1000pF 13 ns tR, tF Mismatch CL = 1000pF 0.5 ns tD-1 Turn-Off Delay Time CL = 1000pF 12.5 ns tD-2 Turn-On Delay Time CL = 1000pF 14.5 ns tDdelta tD-1 - TD-2 Mismatch CL = 1000pF 2 ns tRFdelta Tenable Enable Delay Time 12 ns Tdisable Disable Delay Time 12 ns 2 Electrical Characteristics VS+ = +15V, VS- = 0V, VH = +15V, VL = 0V, TA = 25°C, unless otherwise specified Parameter Description Condition Min Typ Max Units VIH = 5V 0.1 10 µA VIL = 0V 0.1 Input VIH Logic “1” Input Voltage IIH Logic “1” Input Current 2.4 V VIL Logic “0” Input Voltage IIL Logic “0” Input Current Cin Input Capacitance 3.5 pF Rin Input Resistance 50 MΩ 0.8 V 10 µA Output ROV1 ON Resistance VH to OUT IOUT = -100mA 3.5 5 Ω ROV2 ON Resistance VL to OUT IOUT = +100mA 3 5 Ω Ileak Output Leakage Current VH = VS+, VL = VS- 0.1 10 µA IPK Peak Output Current Source 2.0 A Sink 2.0 A Inputs = VS+ 0.8 Power Supply IS Power Supply Current 2 mA Switching Characteristics tR Rise Time CL = 1000pF 11 ns tF Fall Time CL = 1000pF 12 ns ns tRFdelta tR, tF Mismatch CL = 1000pF 1 tD-1 Turn-Off Delay Time CL = 1000pF 11.5 ns tD-2 Turn-On Delay Time CL = 1000pF 13 ns tDdelta tD-1 - tD-2 Mismatch CL = 1000pF 1.5 ns Tenable Enable Delay Time 12 ns Tdisable Disable Delay Time 12 ns 3 EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver 40MHz Non-Inverting Quad CMOS Driver Typical Performance Curves Max Power 11 Switch Threshold vs Supply Voltage T=25°C 10 1.0 1.8 High Limit = 2.4V θja=110°C/W, SO-16 1.6 Input voltage (V) Max Power(W) 0.8 0.6 0.4 θja=158°C/W, QSOP-16 Hysteresis 1.4 1.2 0.2 Low Limit = 0.8V 1.0 0 0 25 50 75 100 5 7 Temperature (°C) 2.0 15 9 8 1.6 1.2 All Inputs = 0 1.0 7 “On” Resistance (Ω) 1.4 Supply Current (mA) 12 “On” Resistance vs Supply Voltage IOUT=100mA, T=25°C 8 1.8 0.8 0.6 VH to OUT 6 5 4 VL to OUT 0.4 3 All Inputs = VS+ 0.2 0 2 5 8 11 12 15 10 5 Supply Voltage (V) 15 Supply Voltage (V) Rise/Fall Time vs Supply Voltage CL=1000pF, T=25°C 1 10 Supply Voltage (V) Quiescent Supply Current vs Supply Voltage T=25°C 9 Rise/Fall Time vs Temperature CL=1000pF, VS+=15V 2 16 25 14 Rise/Fall Time (ns) 20 Rise/Fall Time (ns) EL7457C EL7457C tR 15 tF tF 12 tR 10 10 8 6 -50 5 5 7.5 10 12.5 15 0 50 Temperature (°C) Supply Voltage (V) 4 100 150 Typical Performance Curves (cont.) Propagation Delay vs Supply Voltage CL=1000pF, T=25°C 3 Propagation ,Delay vs Temperature CL=1000pF, VS+=15V 4 18 25 16 20 15 tD1 tD2 14 Delay Time (ns) Delay Time (ns) tD2 12 tD1 10 10 8 6 -50 5 5.0 7.5 10.0 12.5 15.0 Rise/Fall Time vs Load VS+=15V, T=25°C 5 12 120 10 Supply Current (mA) Rise/Fall Time (ns) 100 80 60 40 tF tR 20 25 50 75 100 125 8 6 4 2 0 0 100 470 1000 2200 4700 10000 100 Load Capacitance (pF) Supply Current Per Channel vs Frequency CL=1000pF, T=25°C VS+=15V 10 VS+=10V 1.0 VS+=5V 0.1 10k 100k 1M 1k Load Capacitance (pF) 100 Supply Current (mA) 0 Supply Current Per Channel vs Capacitive Load VS+=VH=10V, VS-=VL=0V, T=25°C, f=100kHz 6 140 7 -25 Temperature (°C) Supply Voltage (V) 10M Frequency (Hz) 5 10k EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver Nominal Operating Voltage Range PIN MIN MAX VS+ to VS- 5V 15V VS- to GND -5V 0V VH VS- + 2.5V VS + VL VS - VS + VH to VL 0V 15V VL to VS- 0V 8V Timing Diagrams 5V Input 2.5V 0 Output 90% 10% tD1 tD2 tR tF 6 Standard Test Configuration VS+ VS+ 10kΩ 0.1µ F INA EN INB 1 16 2 15 3 14 4.7µ F OUTA 1000pF OUTB 1000pF VL 4 4.7µ F VH 13 NC 0.1µ F 0.1µ F 5 12 NC 6 11 4.7µ F OUTC 1000pF INC 7 10 IND 8 9 OUTD 1000pF VS0.1µ F 7 4.7µ F EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver Pin Description Pin 1 Name INA Function Equivalent Circuit Input Channel A VS+ INPUT V SCircuit 1 2 OE Output Enable (Reference Circuit 1) 3 INB Input Channel B (Reference Circuit 1) 4 VL Low Voltage Input Pin 5 GND Input Logic Ground 6 NC No Connection 7 INC Input Channel C (Reference Circuit 1) 8 IND Input Channel D (Reference Circuit 1) 9 VS - Negative Supply Voltage 10 OUTD Output Channel D VH OUTPUT VSVL Circuit 2 11 OUTC Output Channel C 12 VH High Voltage Input Pin (Reference Circuit 2) 13 NC No Connection 14 OUTB Output Channel B (Reference Circuit 2) 15 OUTA Output Channel A (Reference Circuit 2) 16 VS + Positive Supply Voltage 8 Block Diagram OE VH VS+ INPUT 3-State Control Level Shifter OUTPUT GND VS- VL 9 EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver Application Information: Product Description Power Dissipation Calculation The EL7457C is a high performance 40MHz ultra-high speed quad driver. Each channel of the EL7457C consists of a single P-channel high side driver and a single N-channel low side driver. These 3Ω devices will pull the output (OUTX) to either the high or low voltage, on VH and VL respectively, depending on the input logic signal (INX). It should be noted that there is only one set of high and low voltage pins. 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. For reliable operation die temperature must be kept below Tjmax (125°C). It is necessary to calculate the power dissipation for a given application prior to selecting the package type. Power dissipation may be calculated: A common output enable (OE) pin is available on the EL7457C. This pin, when pulled low will put all outputs in to the high impedance state. 4 PD = ( V S × I S ) + ∑ ( CINT × VS × f ) + ( CL × VO2 UT × f ) 2 1 The EL7457C is available in both the 16-pin SOIC and the space saving 16-pin QSOP packages. The relevant package should be chosen depending on the calculated power dissipation. where: • VS is the total power supply to the EL7457C (from VS+ to VS-), Supply Voltage Range and Input Compatibility • Vout is the swing on the output (VH - VL), The EL7457C is designed for operation on supplies from 5V to 15V with 10% tolerance (i.e. 4.5V to 16.5V). The table on page 6 shows the specifications for the relationship between the VS+, VS-, VH, VL and GND pins. The EL7457C does not contain a true analog switch and therefore VL should always be less than VH. • CL is the load capacitance, • CINT is the internal load capacitance (50pF max.), • IS is the quiescent supply current (3mA max.) and • f is frequency All input pins are compatible with both 3V and 5V CMOS signals With a positive supply (VS+) of 5V, the EL7457C is also compatible with TTL inputs. Having obtained the application’s power dissipation, a maximum package thermal coefficient may be determined, to maintain the internal die temperature below Tjmax. Power Supply Bypassing ( T jmax – T max ) θ ja = --------------------------------------PD When using the EL7457C, it is very important to use adequate power supply bypassing. The high switching currents developed by the EL7457C necessitate the use of a bypass capacitor on both the positive and negative supplies. It is recommended that a 4.7µ F tantalum capacitor be used in parallel with a 0.1µ F low-inductance ceramic MLC capacitor. These should be placed as close to the supply pins as possible. It is also recommended that the VH and VL pins have some level of bypassing, especially if the EL7457C is driving highly capacitive loads. where: • Tjmax is the maximum junction temperature (125°C), • Tmax is the maximum operating temperature, • PD is the power dissipation calculated above. Using the value of θja, a suitable package for the application may be selected. In applications with a θja greater than 158°C/W, a 16-pin QSOP may be used. A 16-pin SOIC is suitable for applications with a θja value greater than 110°C/W. However, 10 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 EL7457C EL7457C 40MHz Non-Inverting Quad CMOS Driver EL7457C 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 circuitry 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. December 7, 1999 WARNING - Life Support Policy Elantec, Inc. products are not authorized for and should not be used within Life Support Systems without the specific written consent of Elantec, Inc. Life Support systems are equipment intended to support or sustain life and whose failure to perform when properly used in accordance with instructions provided can be reasonably expected to result in significant personal injury or death. Users contemplating application of Elantec, Inc. Products in Life Support Systems are requested to contact Elantec, Inc. factory headquarters to establish suitable terms & conditions for these applications. Elantec, Inc.’s warranty is limited to replacement of defective components and does not cover injury to persons or property or other consequential damages. Élantec, Inc. 675 Trade Zone Blvd. Milpitas, CA 95035 Telephone: (408) 945-1323 (888) ÉLANTEC Fax: (408) 945-9305 European Office: +44-118-977-6080 12 Printed in U.S.A.