Precision Quad Comparators HA-4900 series monolithic, quad, preci

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Precision Quad Comparators HA-4900 series monolithic, quad, preci

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HA-4900, HA-4902, HA-4905
Precision Quad Comparators
HA-4900 series monolithic, quad, precision comparators offering fast response time, offset voltage, offset current virtually channel-to-channel crosstalk applications requiring accurate, high speed, signal level detection. These comparators sense signals ground level while being operated from either single supply (digital systems) from dual supplies (analog networks) ±15V. HA-4900 series contains unique current driven output stage which connected logic system supplies (VLOGIC+ VLOGIC-) make output levels directly compatible external components needed) with standard logic special system logic levels. combination analog/digital systems, design employed HA-4900 series input output stages prevents troublesome ground coupling signals between analog digital portions system. These comparators' combination features make them ideal components signal detection processing data acquisition systems, test equipment microprocessor/analog signal interface networks. military grade product, refer HA-4902/883 data sheet.
Features
Fast Response Time 130ns Offset Voltage 2.0mV Offset Current .10nA Single Dual Voltage Supply Operation Selectable Output Logic Levels Active Pull-Up/Pull-Down Output Circuit. External Resistors Required
Applications
Threshold Detector Zero Crossing Detector Window Detector Analog Interfaces Microprocessors High Stability Oscillators Logic System Interfaces
Ordering Information
PART NUMBER HA1-4900-2 TEMP RANGE (oC) PACKAGE CERDIP CERDIP CERDIP PDIP SOIC PKG. F16.3 F16.3 F16.3 E16.3 M16.3
Pinout
HA-4900, HA-4902 (CERDIP) HA-4905 (PDIP, CERDIP, SOIC) VIEW
V+IN
HA1-4902-2 HA1-4905-5 HA3-4905-5 HA9P4905-5
CAUTION: These devices sensitive electrostatic discharge; follow proper Handling Procedures. 1-888-INTERSIL 321-724-7143 Copyright Intersil Corporation 1999
HA-4900, HA-4902, HA-4905
Absolute Maximum Ratings
Supply Voltage (Between Terminals) Differential Input Voltage .15V Voltage Between VLOGIC+ VLOGIC-. .18V Output Current 50mA Power Dissipation (Notes
Thermal Information
Thermal Resistance (Typical, Note (oC/W) (oC/W) CERDIP Package. PDIP Package SOIC Package Maximum Junction Temperature (Ceramic Package) .175oC Maximum Junction Temperature (Plastic Package) .150oC Maximum Storage Temperature Range -65oC 150oC Maximum Lead Temperature (Soldering 10s) 300oC (SOIC Lead Tips Only)
Operating Conditions
Temperature Range HA-4900-2, HA-4902-2. -55oC 125oC HA-4905-5 75oC
Characteristics
Back Side Potential VNumber Transistors Size mils mils
CAUTION: Stresses above those listed "Absolute Maximum Ratings" cause permanent damage device. This stress only rating operation device these other conditions above those indicated operational sections this specification implied.
NOTES: Maximum power dissipation, including output load, must designed maintain junction temperature below 175oC ceramic packages, below 150oC plastic packages. Total Power Dissipation (T.P.D.) individual dissipation contributions VLOGIC shown curves Power Dissipation Supply Voltages (see Performance Curves). calculated T.P.D. then located graph Maximum Allowable Package Dissipation Ambient Temperature determine ambient temperature operating limits imposed calculated T.P.D. (See Performance Curves). instance, combination +15V, -15V, +5V, (V+, VLOGIC+, VLOGIC-) gives T.P.D. 350mW, combination +15V, -15V, +15V, gives T.P.D. 450mW. measured with component mounted evaluation board free air.
Electrical Specifications
VSUPPLY VLOGIC+ VLOGIC- HA-4900-2 -55oC 125oC HA-4902-2 -55oC 125oC HA-4905-5 75oC UNITS
PARAMETER INPUT CHARACTERISTICS Offset Voltage (Note
TEMP (oC)
Full
(V+)
(V+)
(V+)
Offset Current
Full
Bias Current (Note
Full
Input Sensitivity (Note
Full
Common Mode Range Differential Input Resistance TRANSFER CHARACTERISTICS Large Signal Voltage Gain Response Time (tPD(0)) (Note Response Time (tPD(1)) (Note
Full
kV/V
HA-4900, HA-4902, HA-4905
Electrical Specifications
VSUPPLY VLOGIC+ VLOGIC- (Continued) HA-4900-2 -55oC 125oC HA-4902-2 -55oC 125oC HA-4905-5 75oC UNITS
PARAMETER OUTPUT CHARACTERISTICS Output Voltage Level Logic "Low State" (VOL) (Note Logic "High State" (VOH) (Note Output Current ISINK ISOURCE
TEMP (oC)
Full Full
Full Full
POWER SUPPLY CHARACTERISTICS Supply Current, Supply Current, Supply Current, (Logic) Supply Voltage Range VLOGIC+ (Note VLOGIC- (Note NOTES: Minimum differential input voltage required ensure defined output state. Input bias currents essentially constant with differential input voltages ±9V. With differential input voltages from ±15V, bias current more negative input rise approximately 500µA. This will also cause higher supply currents. Input sensitivity worst case minimum differential input voltage required guarantee given output logic state. This parameter includes effects offset voltage voltage gain. tPD(1); 100mV input step, -10mV overdrive. tPD(0); -100mV input step, 10mV overdrive. Frequency 100Hz; Duty Cycle 50%; Inverting input driven. Figure Test Circuit. unused inverting inputs tied +5V. VOL: ISINK ISOURCE 3.0mA. other values VLOGIC; (Min) VLOGIC -1.5V. Full Full -15.0 +15.0 -15.0 +15.0 -15.0 +15.0
Test Circuit Waveform
+15V OVERDRIVE tPD(0) tPD(1)
INPUT VOUT 100mV 100mV OVERDRIVE
-15V
OUTPUT 1.5V 1.5V tPD(1) tPD(0)
FIGURE
HA-4900, HA-4902, HA-4905 Schematic Diagram
200k BIAS D11A 2.5k 2.5k Q29A D29B R20D R20C R20B R20A VLOGIC+
BIAS
BIAS BIAS
VLOGICMN4
FOURTH ONLY
Applying HA-4900 Series Comparators
Supply Connections
This device exceptionally versatile working with most available power supplies. voltage applied Vterminals determines allowable input signal range; while voltage applied determines output swing. systems where dual analog supplies available, these would connected while logic supply return would connected VLOGIC+ VLOGIC analog logic supply commons connected together point system, since comparator immune noise logic supply ground. negative output swing obtained connecting ground negative supply. Bipolar output swings (15VP-P, Max) obtained using dual supplies. systems where only single logic supply available (+5V 15V), VLOGIC+ connected together positive supply while VLOGIC- grounded. input signal could swing negative with respect terminal, resistor should connected series with input limit input current since junction input transistor would forward biased.
Power Supply Decoupling
Decouple power supply lines with 0.01µF ceramic capacitors ground line located near package reduce coupling between channels from external sources.
Response Time
Fast rise time (<200ns) input pulses several volts amplitude result delay times somewhat longer than those illustrated 100mV steps. Operating speed optimized limiting maximum differential input voltage applied, with resistor-diode clamping networks.
Typical Applications
Data Acquisition System
this circuit HA-4900 series used conjunction with converter form simple, versatile, multi-channel analog input data acquisition system. operation processor first sends address then processor reads digital word generated comparator outputs. perform simple comparison, processor sets given reference level, then examines more comparator outputs determine their inputs above below reference. window comparison consists such cycles with reference levels digitize inputs would processor increment steps. address, each comparator switches, digitized level input. While stairstepping slower than successive approximation, channels digitized during staircase ramp.
Unused Inputs
Inputs unused comparator sections should tied differential voltage source prevent output "chatter."
Crosstalk
Simultaneous high frequency operation other channels package will affect output logic state given channel, provided that differential input voltage sufficient define given logic state (VIN ±VOS). level high impedance input lines should shielded from other signal sources reduce crosstalk interference.
HA-4900, HA-4902, HA-4905
Window Detector
LATCH MEMORY INTERFACE
ANALOG INPUTS
INTERFACE
high switching speed, offset current offset voltage HA-4900 series makes this window detector circuit extremely well suited applications requiring fast, accurate, decision-making. circuit above ideal industrial process system feedback controllers "out-oflimit" alarm indicators.
+15V
MICROPROCESSOR COMPARATORS ANALOG INPUT MODULE PROCESSOR
INPUT
HIGH
HIGH
+5.0V
Logic Level Translators
HA-4900 series comparators used versatile logic interface devices shown circuits above. Negative logic devices also interfaced with appropriate supply connections. separate supplies used VLOGIC-, these logic level translators will tolerate several volts ground line differential noise.
+5.0V +15V 4.7k HA-4900 HA-4900 +5.0V HA-4900 -15V
WINDOW HD-74C02
Oscillator/Clock Generator
This self-starting fixed frequency oscillator circuit gives excellent frequency stability. comprise frequency determining network while provides regenerative feedback. Diode enhances stability compensating difference between VSUPPLY. applications where precision clock generator 100kHz required, such automatic test equipment, replaced crystal.
150k
1N914s
HA-4900
HA-4900
CMOS
CMOS
1N914 150k
RS-232 CMOS Line Receiver
This RS-232 type line receiver drive CMOS logic uses Schmitt trigger feedback network give about input hysteresis added noise immunity. possible problem interface which connects equipments, each plugged into different receptacle, that power line voltage appear receiver input when interface connection made broken. diodes input resistor will protect inputs under these conditions.
+10V 4.7k
150k
HA-4900
-2.1R
Schmitt Trigger (Zero Crossing Detector With Hysteresis)
HA-4900 1N4001s
This circuit 100mV hysteresis which used applications where very fast transition times required output even though signal input very slow. hysteresis loop also reduces false triggering noise input. waveforms below show trip points developed hysteresis loop.
HA-4900, HA-4902, HA-4905
+15V 4.2V -15V VTRIPVTRIP+
HA-4900 -15V
INPUT OUTPUT WAVEFORM SHOWING HYSTERESIS TRIP POINTS
Typical Performance Curves
25oC, ±15V, VLOGIC+ VLOGIC- Unless Otherwise Specified
INPUT BIAS CURRENT (nA)
INPUT OFFSET CURRENT (nA)
TEMPERATURE (oC)
TEMPERATURE (oC)
FIGURE INPUT BIAS CURRENT TEMPERATURE
FIGURE INPUT OFFSET CURRENT TEMPERATURE
INPUT BIAS CURRENT (nA)
COMMON MODE INPUT VOLTAGE
FIGURE INPUT BIAS CURRENT COMMON MODE INPUT VOLTAGE (VDIFF
HA-4900, HA-4902, HA-4905 Typical Performance Curves
SUPPLY CURRENT (mA) IPSL, VOUT IPSL, VOUT TEMPERATURE (oC) TEMPERATURE (oC) ±15V VLOGIC+ VLOGIC-
25oC, ±15V, VLOGIC+ VLOGIC- Unless Otherwise Specified (Continued)
IPSL, VOUT SUPPLY CURRENT (mA) IPS+, VOUT IPS+, VOUT IPS+, VOUT VLOGIC+ VLOGIC- IPSL, VOUT
IPS+, VOUT IPS-, VOUT
IPS-, VOUT
FIGURE SUPPLY CURRENT TEMPERATURE (FOR ±15V SUPPLIES LOGIC SUPPLY)
FIGURE SUPPLY CURRENT TEMPERATURE (FOR SINGLE OPERATION)
VOUT OVERDRIVE 20mV OVERDRIVE OVERDRIVE VOUT
OVERDRIVE 20mV +100mV OVERDRIVE OVERDRIVE
-100mV TIME (ns)
TIME (ns)
FIGURE RESPONSE TIME VARIOUS INPUT OVERDRIVES
1.75 PACKAGE DISSIPATION 1.50 1.25 0.75 0.50 SOIC 0.25 TEMPERATURE (oC) PDIP POWER DISSIPATION (mW) CERDIP
VLOGIC+ SUPPLY VOLTAGE
FIGURE MAXIMUM PACKAGE DISSIPATION AMBIENT TEMPERATURE
FIGURE POWER DISSIPATION SUPPLY VOLTAGE LOAD CONDITION)
HA-4900, HA-4902, HA-4905
Intersil semiconductor products manufactured, assembled tested under ISO9000 quality systems certification.
Intersil semiconductor products sold description only. Intersil Corporation reserves right make changes circuit design and/or specifications time without notice. Accordingly, reader cautioned verify that data sheets current before placing orders. Information furnished Intersil believed accurate reliable. However, responsibility assumed Intersil subsidiaries use; infringements patents other rights third parties which result from use. license granted implication otherwise under patent patent rights Intersil subsidiaries.
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Precision Quad Comparators HA-4900 series monolithic, quad, preci

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