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AD844ANADN/a500avai60 MHz, 2000 V/us Monolithic Op Amp
AD844AQADIN/a360avai60 MHz, 2000 V/us Monolithic Op Amp
AD844BQADN/a150avai60 MHz, 2000 V/us Monolithic Op Amp
AD844JRANALOGN/a94avai60 MHz, 2000 V/us Monolithic Op Amp
AD844JR-REEL |AD844JRREELADIN/a7000avai60 MHz, 2000 V/us Monolithic Op Amp
AD844SQADN/a10avai60 MHz, 2000 V/us Monolithic Op Amp
AD844SQ/883B |AD844SQ883BADN/a138avai60 MHz, 2000 V/us Monolithic Op Amp
AD844SQ/883B |AD844SQ883BADIN/a1054avai60 MHz, 2000 V/us Monolithic Op Amp


AD844JR-REEL ,60 MHz, 2000 V/us Monolithic Op AmpSPECIFICATIONS A SAD844J/A AD844B AD844SModel Conditions Min Typ Max Min Typ Max Min Typ Max Units1 ..
AD844SQ ,60 MHz, 2000 V/us Monolithic Op AmpAPPLICATIONSFlash ADC Input AmplifiersHigh Speed Current DAC InterfacesVideo Buffers and Cable Driv ..
AD844SQ/883B ,60 MHz, 2000 V/us Monolithic Op Ampcharacteristics, making it suitable for a variety ofover 2000 V/μs for a full 20 V output step. Se ..
AD844SQ/883B ,60 MHz, 2000 V/us Monolithic Op Ampapplications with bandwidths up to 60 MHz.cally 100 ns to 0.1%, and essentially independent of gain ..
AD845AQ ,Precision, 16 MHz CBFET Op AmpCHARACTERISTICS11 11 11Input Resistance 10 10 10 kΩInput Capacitance 4.0 4.0 4.0 pFINPUT VOLTAGE RA ..
AD845BQ ,Precision, 16 MHz CBFET Op Ampapplications such as active filters,HA2620/2/5, 3550, OPA605, and LH0062 can be upgradedhigh speed ..
ADP3418KRZ ,Dual Boostrapped 12 V MOSFET Driver with Output DisableSpecifications Table 3 Updated Pin Description.......5 Updated Theory of Operation .......9 Updated
ADP3418KRZ-REEL ,Dual Boostrapped 12 V MOSFET Driver with Output DisableSpecifications.... 3 Overlap Protection Circuit.....9 Absolute Maximum Ratings...... 4 Application ..
ADP3419JRM-REEL ,Dual Bootstrapped, High Voltage MOSFET Driver with Output DisableGENERAL DESCRIPTION GENERAL APPLICATION CIRCUIT The ADP3419 is a dual MOSFET driver optimized for d ..
ADP3421 ,Geyserville-Enabled DC/DC Converter Controller for Mobile CPUsfeaturesactive voltage positioning that can be optimally compensatedto ensure a superior load trans ..
ADP3421JRU ,Geyserville-Enabled DC-DC Converter Controller for Mobile CPUsGENERAL DESCRIPTIONI/O LDOANDIOFBBIAS ANDCORECONTROLLERPOWER GOODThe ADP3421 is a hysteretic dc-dc ..
ADP3421JRU-REEL ,Geyserville-Enabled DC/DC Converter Controller for Mobile CPUsfeaturesactive voltage positioning that can be optimally compensatedto ensure a superior load trans ..


AD844AN-AD844AQ-AD844BQ-AD844JR-AD844JR-REEL-AD844SQ-AD844SQ/883B
60 MHz, 2000 V/us Monolithic Op Amp
REV.C60 MHz, 2000 V/ms
Monolithic Op Amp
CONNECTION DIAGRAMSFEATURES
Wide Bandwidth:60 MHz at Gain of –1
Wide Bandwidth:33 MHz at Gain of –10
Very High Output Slew Rate: Up to 2000 V/ms
20 MHz Full Power Bandwidth, 20 V pk-pk, RL = 500 V
Fast Settling: 100 ns to 0.1% (10 V Step)
Differential Gain Error: 0.03% at 4.4 MHz
Differential Phase Error: 0.158 at 4.4 MHz
High Output Drive: 650 mA into 50 Ω Load
Low Offset Voltage: 150 mV max (B Grade)
Low Quiescent Current: 6.5 mA
Available in Tape and Reel in Accordance with
EIA-481A Standard
APPLICATIONS
Flash ADC Input Amplifiers
High Speed Current DAC Interfaces
Video Buffers and Cable Drivers
Pulse Amplifiers
PRODUCT DESCRIPTION

The AD844 is a high speed monolithic operational amplifier fab-
ricated using Analog Devices’ junction isolated complementary
bipolar (CB) process. It combines high bandwidth and very fast
large signal response with excellent dc performance. Although
optimized for use in current to voltage applications and as an
inverting mode amplifier, it is also suitable for use in many non-
inverting applications.
The AD844 can be used in place of traditional op amps, but its
current feedback architecture results in much better ac perfor-
mance, high linearity and an exceptionally clean pulse response.
This type of op amp provides a closed-loop bandwidth which is
determined primarily by the feedback resistor and is almost in-
dependent of the closed-loop gain. The AD844 is free from the
slew rate limitations inherent in traditional op amps and other
current-feedback op amps. Peak output rate of change can be
over 2000 V/μs for a full 20 V output step. Settling time is typi-
cally 100 ns to 0.1%, and essentially independent of gain. The
AD844 can drive 50 Ω loads to ±2.5 V with low distortion and
is short circuit protected to 80 mA.
The AD844 is available in four performance grades and three
package options. In the 16-pin SOIC (R) package, the AD844J
is specified for the commercial temperature range of 0°C to
+70°C. The AD844A and AD844B are specified for the indus-
trial temperature range of –40°C to +85°C and are available in
the cerdip (Q) package. The AD844A is also available in an 8-pin
plastic mini-DIP (N). The AD844S is specified over the military
temperature range of –55°C to +125°C. It is available in the
8-pin cerdip (Q) package. “A” and “S” grade chips and devices
processed to MIL-STD-883B, REV. C are also available.
PRODUCT HIGHLIGHTS

1. The AD844 is a versatile, low cost component providing an
excellent combination of ac and dc performance. It may be
used as an alternative to the EL2020 and CLC400/1.It is essentially free from slew rate limitations. Rise and fall
times are essentially independent of output level.The AD844 can be operated from ±4.5 V to ±18 V power
supplies and is capable of driving loads down to 50 Ω, as
well as driving very large capacitive loads using an external
network.The offset voltage and input bias currents of the AD844 are
laser trimmed to minimize dc errors; VOS drift is typically
1 μV/°C and bias current drift is typically 9 nA/°C.The AD844 exhibits excellent differential gain and differen-
tial phase characteristics, making it suitable for a variety of
video applications with bandwidths up to 60 MHz.The AD844 combines low distortion, low noise and low drift
with wide bandwidth, making it outstanding as an input am-
plifier for flash A/D converters.
16-Pin SOIC
(R) Package
8-Pin Plastic (N),
and Cerdip (Q) Packages
AD844–SPECIFICATIONS
INPUT BIAS CURRENT
INPUT CHARACTERISTICS
INPUT CURRENT NOISE
OPEN LOOP TRANSRESISTANCE
SETTLING TIME
(@ TA = +258C and VS = 615 V dc, unless otherwise noted)
NOTESRated performance after a 5 minute warmup at TA = 25°C.Input signal 285 mV p-p carrier (40 IRE) riding on 0 mV to 642 mV (90 IRE) ramp. RL= 100 Ω; R1, R2 = 300 Ω.Input signal 0 dBm, CL = 10 pF, RL = 500 Ω, R1 = 500 Ω, R2 = 500 Ω in Figure 26.Input signal 0 dBm, CL =10 pF, RL = 500 Ω, R1 = 500 Ω, R2 = 50 Ω in Figure 26.CL = 10 pF, RL = 500 Ω, R1 = 1 kΩ, R2 = 1 kΩ in Figure 26.CL = 10 pF, RL = 500 Ω, R1 = 500 Ω, R2 = 50 Ω in Figure 26.
Specifications subject to change without notice. All min and max specifications are guaranteed.
Specifications shown in boldface are tested on all production units at final electrical test.
AD844
ABSOLUTE MAXIMUM RATINGS1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±18 V
Power Dissipation2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.1 W
Output Short Circuit Duration . . . . . . . . . . . . . . . . .Indefinite
Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . .±VS
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .6 V
Inverting Input Current
Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 mA
Transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 mA
Storage Temperature Range (Q) . . . . . . . . . .–65°C to +150°C
Storage Temperature Range (N, R) . . . . . . . .–65°C to +125°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . .+300°C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1000 V
NOTESStresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to 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.28-Pin Plastic Package:θJA = 100°C/Watt
8-Pin Cerdip Package:θJA = 110°C/Watt
16-Pin SOIC Package:θJA = 100°C/Watt
METALIZATION PHOTOGRAPH

Contact factory for latest dimensions.
Dimension shown in inches and (mm).
ORDERING GUIDE

AD844AQ
AD844BQ
AD844SQ
*N = Plastic DIP; Q = Cerdip; R = Small Outline IC (SOIC).
(TA = +258C and VS = 615 V, unless otherwise noted)AD844–Typical Characteristics
Figure 1.–3 dB Bandwidth vs.
Supply Voltage R1 = R2 = 500 Ω
Figure 4.Noninverting Input Voltage
Swing vs. Supply Voltage
Figure 7.Inverting Input Bias Cur-
rent (IBN) and Noninverting Input
Bias Current (IBP) vs. Temperature
Figure 2.Harmonic Distortion
vs. Frequency, R1 = R2 = 1 kΩ
Figure 5.Output Voltage Swing
vs. Supply Voltage
Figure 8.Output Impedance vs.
Frequency, Gain = –1, R1 = R2 = 1 kΩ
Figure 3.Transresistance
vs. Temperature
Figure 6.Quiescent Supply Current
vs. Temperature and Supply Voltage
Figure 9.–3 dB Bandwidth vs.
Temperature, Gain = –1,
R1 = R2 = 1 kΩ
Figure 10.Inverting Amplifier,
Gain of –1 (R1 = R2)
Figure 12.Phase vs. Frequency
Gain = –1, RL = 500 Ω, CL = 0 pF
Figure 11.Gain vs. Frequency for
Gain = –1, RL = 500 Ω, CL = 0 pF
Figure 13.Large Signal Pulse
Response, Gain = –1, R1 = R2 = 1 kΩ
Figure 14.Small Signal Pulse
Response, Gain = –1, R1 = R2 = 1 kΩ
Inverting Gain of 1 AC Characteristics
Inverting Gain of 10 AC Characteristics

Figure 17. Phase vs. Frequency,
Gain = –10
Figure 16.Gain vs. Frequency,
Gain = –10
Figure 15.Gain of –10 Amplifier
AD844
Inverting Gain of 10 Pulse Response

Figure 18. Large Signal Pulse
Response, Gain = –10, RL = 500 Ω
Figure 19. Small Signal Pulse
Response, Gain = –10, RL = 500 Ω
Figure 21. Gain vs. Frequency,
Gain = +10
Figure 22. Phase vs. Frequency,
Gain = +10
Noninverting Gain of 10 AC Characteristics

Figure 20. Noninverting Gain of
+10 Amplifier
Figure 24. Small Signal Pulse
Response, Gain = +10, RL = 500 Ω
Figure 23. Noninverting Amplifier Large Signal
Pulse Response, Gain = +10, RL = 500 Ω
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