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Dual Ultrafast Voltage Comparator ADCMP566
FEATURES
250 ps propagation delay input to output 50 ps propagation delay dispersion Differential ECL compatible outputs Differential latch control Robust input protection Input common-mode range -2.0 V to +3.0 V Input differential range 5 V ESD protection >3 kV HBM, >200 V MM Power supply sensitivity > 65 dB 200 ps minimum pulsewidth 5 GHz equivalent input rise time bandwidth Typical output rise/fall of 165 ps
FUNCTIONAL BLOCK DIAGRAM
NONINVERTING INPUT Q OUTPUT
ADCMP566
INVERTING INPUT LATCH ENABLE INPUT Q OUTPUT
LATCH ENABLE INPUT
03633-0-001
Figure 1.
GENERAL DESCRIPTION
The ADCMP566 is an ultrafast voltage comparator fabricated on Analog Devices' proprietary XFCB process. The device features 250 ps propagation delay with less than 35 ps overdrive dispersion. Overdrive dispersion, a particularly important characteristic of high speed comparators, is a measure of the difference in propagation delay under differing overdrive conditions. A fast, high precision differential input stage permits consistent propagation delay with a wide variety of signals in the common-mode range from -2.0 V to +3.0 V. Outputs are complementary digital signals fully compatible with ECL 10 K and 10 KH logic families. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 to -2 V. A latch input is included, which permits tracking, track-and-hold, or sample-and-hold modes of operation. The ADCMP566 is available in a 32-lead LFCSP package.
APPLICATIONS
High speed instrumentation Scope and logic analyzer front ends Window comparators High speed line receivers and signal restoration Threshold detection Peak detection High speed triggers Patient diagnostics Disk drive read channel detection Hand-held test instruments Zero-crossing detectors Clock drivers Automatic test equipment
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 (c) 2003 Analog Devices, Inc. All rights reserved.
ADCMP566 TABLE OF CONTENTS
Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Considerations.............................................................. 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Timing Information ......................................................................... 8 Application Information.................................................................. 9 Clock Timing Recovery ............................................................... 9 Optimizing High Speed Performance ........................................9 Comparator Propagation Delay Dispersion ..............................9 Comparator Hysteresis .............................................................. 10 Minimum Input Slew Rate Requirement ................................ 10 Typical Application Circuits ..................................................... 11 Typical Performance Characteristics ........................................... 12 Outline Dimensions ....................................................................... 14 Ordering Guide .......................................................................... 14
REVISION HISTORY
Revision 0: Initial Version
Rev. 0 | Page 2 of 16
ADCMP566 SPECIFICATIONS
Table 1. ADCMP566 ELECTRICAL CHARACTERISTICS (VCC = +5.0 V, VEE = -5.2 V, TA = 25C, unless otherwise noted.)
Parameter DC INPUT CHARACTERISTICS (See Note) Input Common-Mode Range Input Differential Voltage Input Offset Voltage Input Offset Voltage Channel Matching Offset Voltage Tempco Input Bias Current Input Bias Current Tempco Input Offset Current Input Capacitance Input Resistance, Differential Mode Input Resistance, Common Mode Open Loop Gain Common-Mode Rejection Ratio Hysteresis LATCH ENABLE CHARACTERISTICS Latch Enable Common-Mode Range Latch Enable Differential Input Voltage Input High Current Input Low Current Latch Setup Time Latch to Output Delay Latch Pulsewidth Latch Hold Time OUTPUT CHARACTERISTICS Output Voltage--High Level Output Voltage--Low Level Rise Time Fall Time AC PERFORMANCE Propagation Delay Propagation Delay Propagation Delay Tempco Prop Delay Skew--Rising Transition to Falling Transition Within Device Propagation Delay Skew-- Channel to Channel Propagation Delay Dispersion vs. Duty Cycle Propagation Delay Dispersion vs. Overdrive Propagation Delay Dispersion vs. Overdrive Propagation Delay Dispersion vs. Slew Rate Propagation Delay Dispersion vs. Common-Mode Voltage Equivalent Input Rise Time Bandwidth BW Symbol VCM VOS DVOS/dT IBC Condition Min -2.0 -5 -5.0 Typ Max +3.0 +5 +5.0 Unit V V mV mV V/C A nA/C A pF k k dB dB mV V V A A ps ps ps ps V V ps ps ps ps ps/C ps ps ps ps ps ps
-10 -8.0
CIN
CMRR
VCM = -2.0 V to +3.0 V
1.0 1.0 10.0 +24 10.0 0.5 0.75 100 600 60 69 1.0
+42 +8.0
VLCM VLD @ 0.0 V @ -2.0 V 250 mV overdrive 250 mV overdrive 250 mV overdrive 250 mV overdrive ECL 50 to -2.0 V ECL 50 to -2.0 V 20% to 80% 20% to 80% 1 V overdrive 20 mV overdrive
-2.0 0.4 -12 -12
tS tPLOH, tPLOL tPL tH VOH VOL tR tF tPD tPD
+6 +6 50 250 150 75
0 2.0 +12 +12
-1.06 -1.95 170 140 240 290 0.5 10 10
-0.81 -1.65
1 MHz, 1 ns tR, tF 50 mV to 1.5 V 20 mV to 1.5 V 0 V to 1 V swing, 20% to 80%, 50 and 600 ps tR, tF 1 V swing, -1.5 V to 2.5 VCM 0 V to 1 V swing, 20% to 80%, 50 ps tR, tF
Rev. 0 | Page 3 of 16
10 35 50 50
5 5000
ps MHz
ADCMP566
Parameter AC PERFORMANCE (continued) Toggle Rate Minimum Pulsewidth Unit to Unit Propagation Delay Skew POWER SUPPLY Positive Supply Current Negative Supply Current Positive Supply Voltage Negative Supply Voltage Power Dissipation Power Dissipation Power Supply Sensitivity--VCC Power Supply Sensitivity--VEE Symbol Condition >50% output swing tpd from 10 ns to 200 ps < 25 ps Min Typ 5 200 10 IVCC IVEE VCC VEE @ +5.0 V @ -5.2 V Dual Dual Dual, without load Dual, with load 9 60 4.75 -4.96 375 13 70 5.0 -5.2 450 550 68 85 18 85 5.25 -5.45 525 Max Unit Gbps ps ps mA mA V V mW mW dB dB
PW
PSSVCC PSSVEE
NOTE: Under no circumstances should the input voltages exceed the supply voltages.
Rev. 0 | Page 4 of 16
ADCMP566 ABSOLUTE MAXIMUM RATINGS
Table 2. ADCMP566 Absolute Maximum Ratings
Supply Voltages Parameter Positive Supply Voltage (VCC to GND) Negative Supply Voltage (VEE to GND) Ground Voltage Differential Input Common-Mode Voltage Differential Input Voltage Input Voltage, Latch Controls Output Current Operating Temperature, Ambient Operating Temperature, Junction Storage Temperature Range Rating -0.5 V to +6.0 V -6.0 V to +0.5 V -0.5 V to +0.5 V -3.0 V to +4.0 V -7.0 V to +7.0 V VEE to 0.5 V 30 mA -40C to +85C 125C -65C to +150C
THERMAL CONSIDERATIONS
The ADCMP566 LFCSP 32-lead package option has a JA (junction-to-ambient thermal resistance) of 27.2C/W in still air.
Input Voltages
Output Temperature
Stress above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
Rev. 0 | Page 5 of 16
ADCMP566 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
32 31 30 29 28 27 26 25 GND LEA LEA NC GND QA QA GND
GND -INA +INA VCC VCC +INB -INB GND
1 2 3 4 5 6 7 8
PIN 1 INDICATOR
ADCMP566
TOP VIEW (Not to Scale)
24 23 22 21 20 19 18 17
VEE NC VEE VCC VCC VEE NC VEE
GND LEB LEB NC GND QB QB GND
9 10 11 12 13 14 15 16
NC = NO CONNECT
03633-0-002
Figure 2. ADCMP566 Pin Configuration
Table 3. ADCMP566 Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 Mnemonic GND -INA +INA VCC VCC +INB -INB GND GND LEB Function Analog Ground Inverting analog input of the differential input stage for Channel A. The inverting A input must be driven in conjunction with the noninverting A input. Noninverting analog input of the differential input stage for Channel A. The noninverting A input must be driven in conjunction with the inverting A input. Positive Supply Terminal Positive Supply Terminal Noninverting analog input of the differential input stage for Channel B. The noninverting B input must be driven in conjunction with the inverting B input. Inverting analog input of the differential input stage for Channel B. The inverting B input must be driven in conjunction with the noninverting B input. Analog Ground Analog Ground One of two complementary inputs for Channel B Latch Enable. In the compare mode (logic low), the output will track changes at the input of the comparator. In the latch mode (logic high), the output will reflect the input state just prior to the comparator's being placed in the latch mode. LEB must be driven in conjunction with LEB. One of two complementary inputs for Channel B Latch Enable. In the compare mode (logic high), the output will track changes at the input of the comparator. In the latch mode (logic low), the output will reflect the input state just prior to the comparator's being placed in the latch mode. LEB must be driven in conjunction with LEB. No Connect. Leave pin unconnected. Digital Ground One of two complementary outputs for Channel B. QB will be at logic low if the analog voltage at the noninverting input is greater than the analog voltage at the inverting input (provided the comparator is in the compare mode). See the LEB description (Pin 11) for more information. One of two complementary outputs for Channel B. QB will be at logic high if the analog voltage at the noninverting input is greater than the analog voltage at the inverting input (provided the comparator is in the compare mode). See the LEB description (Pin 11) for more information. Digital Ground Negative Supply Terminal No Connect. Leave pin unconnected. Negative Supply Terminal Positive Supply Terminal Positive Supply Terminal
Rev. 0 | Page 6 of 16
11
LEB
12 13 14
NC GND QB
15
QB
16 17 18 19 20 21
GND VEE NC VEE VCC VCC
ADCMP566
Pin No. 22 23 24 25 26 Mnemonic VEE NC VEE GND QA Function Negative Supply Terminal No Connect. Leave pin unconnected. Negative Supply Terminal Digital Ground One of two complementary outputs for Channel A. QA will be at logic high if the analog voltage at the noninverting input is greater than the analog voltage at the inverting input (provided the comparator is in the compare mode). See the LEA description (Pin 30) for more information. One of two complementary outputs for Channel A. QA will be at logic low if the analog voltage at the noninverting input is greater than the analog voltage at the inverting input (provided the comparator is in the compare mode). See the LEA description (Pin 30) for more information. Digital Ground No Connect. Leave pin unconnected. One of two complementary inputs for Channel A Latch Enable. In the compare mode (logic high), the output will track changes at the input of the comparator. In the latch mode (logic low), the output will reflect the input state just prior to the comparator's being placed in the latch mode. LEA must be driven in conjunction with LEA. One of two complementary inputs for Channel A Latch Enable. In the compare mode (logic low), the output will track changes at the input of the comparator. In the latch mode (logic high), the output will reflect the input state just prior to the comparator's being placed in the latch mode. LEA must be driven in conjunction with LEA. Analog Ground
27
QA
28 29 30
GND NC LEA
31
LEA
32
GND
Rev. 0 | Page 7 of 16
ADCMP566 TIMING INFORMATION
LATCH ENABLE 50% LATCH ENABLE
tS tH
tPL
DIFFERENTIAL INPUT VOLTAGE
VIN VOD
VREF VOS
tPDL
Q OUTPUT
tPLOH
50%
tPDH
tF
50%
Q OUTPUT
tPLOL tR
03633-0-003
Figure 3. System Timing Diagram
The timing diagram in Figure 3 shows the ADCMP566 compare and latch features. Table 4 describes the terms in the diagram. Table 4. Timing Descriptions
Symbol tPDH Timing Input to output high delay Description Propagation delay measured from the time the input signal crosses the reference ( the input offset voltage) to the 50% point of an output low-to-high transition Propagation delay measured from the time the input signal crosses the reference ( the input offset voltage) to the 50% point of an output high-to-low transition Propagation delay measured from the 50% point of the Latch Enable signal low-to-high transition to the 50% point of an output lowto-high transition Propagation delay measured from the 50% point of the Latch Enable signal low-to-high transition to the 50% point of an output highto-low transition
Symbol tH
Timing Minimum hold time
tPL
tS
tPDL
Input to output low delay
Minimum latch enable pulsewidth Minimum setup time
tR
tPLOH
Latch enable to output high delay
Output rise time
tF
Output fall time
tPLOL
Latch enable to output low delay
VOD
Voltage overdrive
Description Minimum time after the negative transition of the Latch Enable signal that the input signal must remain unchanged to be acquired and held at the outputs Minimum time that the Latch Enable signal must be high to acquire an input signal change Minimum time before the negative transition of the Latch Enable signal that an input signal change must be present to be acquired and held at the outputs Amount of time required to transition from a low to a high output as measured at the 20% and 80% points Amount of time required to transition from a high to a low output as measured at the 20% and 80% points Difference between the differential input and reference input voltages
Rev. 0 | Page 8 of 16
ADCMP566 APPLICATION INFORMATION
The ADCMP566 comparators are very high speed devices. Consequently, high speed design techniques must be employed to achieve the best performance. The most critical aspect of any ADCMP566 design is the use of a low impedance ground plane. A ground plane, as part of a multilayer board, is recommended for proper high speed performance. Using a continuous conductive plane over the surface of the circuit board can create this, allowing breaks in the plane only for necessary signal paths. The ground plane provides a low inductance ground, eliminating any potential differences at different ground points throughout the circuit board caused by ground bounce. A proper ground plane also minimizes the effects of stray capacitance on the circuit board. It is also important to provide bypass capacitors for the power supply in a high speed application. A 1F electrolytic bypass capacitor should be placed within 0.5 inches of each power supply pin to ground. These capacitors will reduce any potential voltage ripples from the power supply. In addition, a 10 nF ceramic capacitor should be placed as close as possible from the power supply pins on the ADCMP566 to ground. These capacitors act as a charge reservoir for the device during high frequency switching. The LATCH ENABLE input is active low (latched). If the latching function is not used, the LATCH ENABLE input should be grounded (ground is an ECL logic high), and the complementary input, LATCH ENABLE, should be tied to -2.0 V. This will disable the latching function. Occasionally, one of the two comparator stages within the ADCMP566 will not be used. The inputs of the unused comparator should not be allowed to float. The high internal gain may cause the output to oscillate (possibly affecting the comparator that is being used) unless the output is forced into a fixed state. This is easily accomplished by ensuring that the two inputs are at least one diode drop apart, while also appropriately connecting the LATCH ENABLE and LATCH ENABLE inputs as described above. The best performance is achieved with the use of proper ECL terminations. The open emitter outputs of the ADCMP566 are designed to be terminated through 50 resistors to -2.0 V, or any other equivalent ECL termination. If a -2.0 V supply is not available, an 82 resistor to ground and a 130 resistor to -5.2 V provide a suitable equivalent. If high speed ECL signals must be routed more than a centimeter, microstrip or stripline techniques may be required to ensure proper transition times and prevent output ringing.
CLOCK TIMING RECOVERY
Comparators are often used in digital systems to recover clock timing signals. High speed square waves transmitted over a distance, even tens of centimeters, can become distorted due to stray capacitance and inductance. Poor layout or improper termination can also cause reflections on the transmission line, further distorting the signal waveform. A high speed comparator can be used to recover the distorted waveform while maintaining a minimum of delay.
OPTIMIZING HIGH SPEED PERFORMANCE
As with any high speed comparator amplifier, proper design and layout techniques should be used to ensure optimal performance from the ADCMP566. The performance limits of high speed circuitry can easily be a result of stray capacitance, improper ground impedance, or other layout issues. Minimizing resistance from source to the input is an important consideration in maximizing the high speed operation of the ADCMP566. Source resistance in combination with equivalent input capacitance could cause a lagged response at the input, thus delaying the output. The input capacitance of the ADCMP566 in combination with stray capacitance from an input pin to ground could result in several picofarads of equivalent capacitance. A combination of 3 k source resistance and 5 pF of input capacitance yields a time constant of 15 ns, which is significantly slower than the sub 500 ps capability of the ADCMP566. Source impedances should be significantly less than 100 for best performance. Sockets should be avoided due to stray capacitance and inductance. If proper high speed techniques are used, the ADCMP566 should be free from oscillation when the comparator input signal passes through the switching threshold.
COMPARATOR PROPAGATION DELAY DISPERSION
The ADCMP566 has been specifically designed to reduce propagation delay dispersion over an input overdrive range of 100 mV to 1 V. Propagation delay overdrive dispersion is the change in propagation delay that results from a change in the degree of overdrive (how far the switching point is exceeded by the input). The overall result is a higher degree of timing accuracy since the ADCMP566 is far less sensitive to input variations than most comparator designs. Propagation delay dispersion is a specification that is important in critical timing applications such as ATE, bench instruments, and nuclear instrumentation. Overdrive dispersion is defined
Rev. 0 | Page 9 of 16
ADCMP566
as the variation in propagation delay as the input overdrive conditions are changed (Figure 4). For the ADCMP566, overdrive dispersion is typically 35 ps as the overdrive is changed from 100 mV to 1 V. This specification applies for both positive and negative overdrive since the ADCMP566 has equal delays for positive and negative going inputs. The 35 ps propagation delay overdrive dispersion of the ADCMP566 offers considerable improvement of the 100 ps dispersion of other similar series comparators.
1.5V OVERDRIVE
0 -VH 2 0V INPUT 1 +VH 2
INPUT VOLTAGE 20mV OVERDRIVE
OUTPUT
03633-0-005
VREF VOS
Figure 5. Comparator Hysteresis Transfer Function
DISPERSION Q OUTPUT
03633-0-004
60
50
Figure 4. Propagation Delay Dispersion
HYSTERESIS (mV)
40
COMPARATOR HYSTERESIS
The addition of hysteresis to a comparator is often useful in a noisy environment or where it is not desirable for the comparator to toggle between states when the input signal is at the switching threshold. The transfer function for a comparator with hysteresis is shown in Figure 5. If the input voltage approaches the threshold from the negative direction, the comparator will switch from a 0 to a 1 when the input crosses +VH/2. The new switching threshold becomes -VH/2. The comparator will remain in a 1 state until the threshold -VH/2 is crossed coming from the positive direction. In this manner, noise centered on 0 V input will not cause the comparator to switch states unless it exceeds the region bounded by VH/2. Positive feedback from the output to the input is often used to produce hysteresis in a comparator (Figure 9). The major problem with this approach is that the amount of hysteresis varies with the output logic levels, resulting in a hysteresis that is not symmetrical around zero. Another method to implement hysteresis is generated by introducing a differential voltage between LATCH ENABLE and LATCH ENABLE. inputs (Figure 10). Hysteresis generated in this manner is independent of output swing and is symmetrical around zero. The variation of hysteresis with input voltage is shown in Figure 6.
30
20
10
0 -20
-15
-10 -5 0 5 LATCH = LE - LEB (mV)
10
15
Figure 6. Comparator Hysteresis Transfer Function Using Latch Enable Input
MINIMUM INPUT SLEW RATE REQUIREMENT
As for all high speed comparators, a minimum slew rate must be met to ensure that the device does not oscillate when the input crosses the threshold. This oscillation is due in part to the high input bandwidth of the comparator and the parasitics of the package. Analog Devices recommends a slew rate of 5 V/s or faster to ensure a clean output transition. If slew rates less than 5 V/s are used, then hysteresis should be added to reduce the oscillation.
Rev. 0 | Page 10 of 16
03633-0-006
ADCMP566
TYPICAL APPLICATION CIRCUITS
VIN
VIN VREF
ADCMP566
OUTPUTS
ADCMP566
OUTPUTS
LATCH ENABLE INPUTS
ALL RESISTORS 50
-2.0V
HYSTERESIS VOLTAGE
450
-2.0V
ALL RESISTORS 50 UNLESS OTHERWISE NOTED
03633-0-007 03633-0-010
Figure 7. High Speed Sampling Circuits
Figure 10. Hysteresis Using Latch Enable Input
+VREF VIN
30
50 50
ADCMP566
OUTPUTS
VIN
ADCMP566
127
30 127
-5.2V
03633-0-011
-VREF
ADCMP566
Figure 11. How to Interface an ECL Output to an Instrument with a 50 to Ground Input
LATCH ENABLE INPUTS
-2.0V
ALL RESISTORS 50
03633-0-008
Figure 8. High Speed Window Comparator
VIN
ADCMP566
OUTPUTS
VREF
R1
R2 -2.0V
ALL RESISTORS 50
03633-0-009
Figure 9. Hysteresis Using Positive Feedback
Rev. 0 | Page 11 of 16
ADCMP566 TYPICAL PERFORMANCE CHARACTERISTICS
(VCC = +5.0 V, VEE = -5.2 V, TA = 25C, unless otherwise noted.)
30
23.4
+IN INPUT BIAS CURRENT (A) (+IN = 1V, -IN = 0V)
25
23.2 23.0 22.8 22.6 22.4 22.2 22.0 -40
03633-0-016 03633-0-018 03633-0-017
INPUT BIAS CURRENT (A)
20
15
10
5
0 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 NONINVERTING INPUT VOLTAGE (INVERTING VOLTAGE = 0.5V)
03633-0-013
-20
0
20 40 TEMPERATURE (C)
60
80
Figure 12. Input Bias Current vs. Input Voltage
60
2.0 1.8 1.6
Figure 15. Input Bias Current vs. Temperature
50
OFFSET VOLTAGE (mV)
1.2 1.0 0.8 0.6 0.4 0.2
03633-0-014
HYSTERESIS (mV)
1.4
40
30
20
10
0 -40
0 -20
-15
-20
0
20 40 TEMPERATURE (C)
60
80
-10 -5 0 5 LATCH = LE - LEB (mV)
10
15
Figure 13. Input Offset Voltage vs. Temperature
Figure 16. Hysteresis vs. Latch
195 185 175
195 185 175
TIME (ps)
03633-0-015
TIME (ps)
165 155 145 135 125 -40 -30 -20 -10
165 155 145 135 125 -40 -30 -20 -10
0
10 20 30 40 50 TEMPERATURE (C)
60
70
80
90
0
10 20 30 40 50 TEMPERATURE (C)
60
70
80
90
Figure 14. Rise Time vs. Temperature
Figure 17. Fall Time vs. Temperature
Rev. 0 | Page 12 of 16
ADCMP566
242 240
239 238
PROPAGATION DELAY (ps)
236 234 232 230 228 226 -40 -30 -20 -10
03633-0-019
PROPAGATION DELAY (ps)
238
237 236 235 234 233 232 231 -2
03633-0-022 03633-0-023
0
10 20 30 40 50 TEMPERATURE (C)
60
70
80
90
-1 0 1 2 INPUT COMMON-MODE VOLTAGE (V)
3
Figure 18. Propagation Delay vs. Temperature
60
Figure 21. Propagation Delay vs. Common-Mode Voltage
0 -5
PROPAGATION DELAY ERROR (ps)
PROPAGATION DELAY ERROR (ps)
03633-0-020
50
-10 -15 -20 -25 -30 -35 -40 0.15
40
30
20
10
0
0
0.2
0.4
0.6 0.8 1.0 1.2 OVERDRIVE VOLTAGE (V)
1.4
1.6
2.15
4.15 6.15 PULSEWIDTH (ns)
8.15
Figure 19. Propagation Delay Error vs. Overdrive Voltage
-0.8
Figure 22. Propagation Delay Error vs. Pulsewidth
-1.0
OUTPUT RISE AND FALL (V)
-1.2
-1.4
-1.6
-1.8
-2.0 1.0
1.1
1.2
1.3
1.4 1.5 1.6 TIME (ns)
1.7
1.8
1.9
2.0
Figure 20. Rise and Fall of Outputs vs. Time
03633-0-021
Rev. 0 | Page 13 of 16
ADCMP566 OUTLINE DIMENSIONS
5.00 BSC SQ 0.60 MAX 0.60 MAX
25 24 32 1
PIN 1 INDICATOR
PIN 1 INDICATOR
TOP VIEW
4.75 BSC SQ
0.50 BSC
BOTTOM VIEW
3.25 2.70 SQ 1.25
8
0.50 0.40 0.30 12 MAX 1.00 0.90 0.80 0.80 MAX 0.65 NOM 0.05 MAX 0.02 NOM SEATING PLANE 0.30 0.23 0.18 0.20 REF COPLANARITY 0.08
17 16
9
3.50 REF
COMPLIANT TO JEDEC STANDARDS MO-220-VHHD-2
Figure 23. 32-Lead Lead Frame Chip Scale Package [LFCSP] (CP-32) Dimensions shown in millimeters
ORDERING GUIDE
Model ADCMP566BCP Temperature Range -40C to +85C Package Description LFCSP-32 Package Option CP-32
Rev. 0 | Page 14 of 16
ADCMP566 Notes
Rev. 0 | Page 15 of 16
ADCMP566 Notes
(c) 2003 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C03633-0-10/03(0)
Rev. 0 | Page 16 of 16

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