AD841JN ,Wideband, Unity-Gain Stable, Fast Settling Op AmpCHARACTERISTICSVoltage R ≥ 500 ΩLOADT –T ±10 ±10 ±10 VMIN MAXCurrent V = ±10 V 50 50 50 mAOUTOUTPUT ..
AD841JQ ,Wideband, Unity-Gain Stable, Fast Settling Op Ampapplications. Offset nullwidth active filters. The extremely rapid settling time of thepins are pro ..
AD841JQ ,Wideband, Unity-Gain Stable, Fast Settling Op AmpSpecifications subject to change without notice.–2– REV. BAD8411 NOTESABSOLUTE MAXIMUM RATINGS1Stre ..
AD841KN ,Wideband, Unity-Gain Stable, Fast Settling Op AmpFEATURESCONNECTION DIAGRAMSAC PERFORMANCEPlastic DIP (N) PackageUnity-Gain Bandwidth: 40 MHzTO-8 (H ..
AD842 ,Wideband, High Output Current, Fast Settling Op AmpCHARACTERISTICSVoltage R ≥ 500 Ω 10 10 10 VLOADCurrent V = ±10 V 100 100 100 mAOUTOpen Loop 5 5 ..
AD842JH ,Wideband, High Output Current, Fast Settling Op AmpCHARACTERISTICSVoltage R ≥ 500 Ω 10 10 10 VLOADCurrent V = ±10 V 100 100 100 mAOUTOpen Loop 5 5 ..
ADP3415KRM-REEL ,Dual MOSFET Driver with BootstrappingSPECIFICATIONSA CC BSTParameter Symbol Conditions Min Typ Max UnitSUPPLY (VCC)Supply Voltage Range ..
ADP3415KRM-REEL ,Dual MOSFET Driver with BootstrappingSpecifications subject to change without notice.REV. PrA–2–PRELIMINARY TECHNICAL DATAADP3415PIN FUN ..
ADP3415KRM-REEL7 ,Dual MOSFET Driver with Bootstrappingfeatures: anDLY DRVLoverlapping protection circuit (OPC) undervoltage lockout (UVLO)GNDthat holds t ..
ADP3415KRM-REEL7 ,Dual MOSFET Driver with BootstrappingSpecifications subject to change without notice.REV. PrA–2–PRELIMINARY TECHNICAL DATAADP3415PIN FUN ..
ADP3415LRM-REEL ,Dual MOSFET Driver with Bootstrappingfeatures an overlapping protectionSTATE LOGICcircuit (OPC); undervoltage lockout (UVLO) that holds ..
ADP3415LRM-REEL ,Dual MOSFET Driver with BootstrappingSpecifications subject to change without notice.–2– REV. BADP3415ABSOLUTE MAXIMUM RATINGS* PIN CONF ..
AD841JN-AD841JQ-AD841KN
Wideband, Unity-Gain Stable, Fast Settling Op Amp
REV.B
Wideband, Unity-Gain Stable,
Fast Settling Op Amp
FEATURES
AC PERFORMANCE
Unity-Gain Bandwidth: 40 MHz
Fast Settling: 110 ns to 0.01%
Slew Rate: 300 V/ms
Full Power Bandwidth: 4.7 MHz for 20 V p-p into a
500 V Load
DC PERFORMANCE
Input Offset Voltage: 1 mV max
Input Voltage Noise: 13 nV/√Hz typ
Open-Loop Gain: 45 V/mV into a 1 kV Load
Output Current: 50 mA min
Supply Current: 12 mA max
APPLICATIONS
High Speed Signal Conditioning
Video and Pulse Amplifiers
Data Acquisition Systems
Line Drivers
Active Filters
Available in 14-Pin Plastic DIP Hermetic Cerdip, 12-Pin
TO-8 Metal Can and 20-Pin LCC Packages
Chips and MIL-STD-883B Parts Available
PRODUCT DESCRIPTIONThe AD841 is a member of the Analog Devices family of wide
bandwidth operational amplifiers. This high speed/high precision
family includes, among others, the AD840, which is stable at a
gain of 10 or greater, and the AD842, which is stable at a gain of
two or greater and has 100 mA minimum output current drive.
These devices are fabricated using Analog Devices’ junction iso-
lated complementary bipolar (CB) process. This process permits
a combination of dc precision and wideband ac performance
previously unobtainable in a monolithic op amp. In addition to
its 40 MHz unity-gain bandwidth product, the AD841 offers ex-
tremely fast settling characteristics, typically settling to within
0.01% of final value in 110 ns for a 10 volt step.
Unlike many high frequency amplifiers, the AD841 requires no
external compensation. It remains stable over its full operating
temperature range. It also offers a low quiescent current of
12 mA maximum, a minimum output current drive capability of
50 mA, a low input voltage noise of 13 nV/√Hz and low input
offset voltage of 1 mV maximum.
The 300 V/μs slew rate of the AD841, along with its 40 MHz
gain bandwidth, ensures excellent performance in video and
pulse amplifier applications. This amplifier is well suited for use
in high frequency signal conditioning circuits and wide band-
width active filters. The extremely rapid settling time of the
Plastic DIP (N) Package
and
Cerdip (Q) Package
CONNECTION DIAGRAMS
TO-8 (H) Package
LCC (E) PackageAD841 makes it the preferred choice for data acquisition
applications which require 12-bit accuracy. The AD841 is
also appropriate for other applications such as high speed
DAC and ADC buffer amplifiers and other wide bandwidth
circuitry.
APPLICATION HIGHLIGHTSThe high slew rate and fast settling time of the AD841
make it ideal for DAC and ADC buffers, and all types
of video instrumentation circuitry.The AD841 is a precision amplifier. It offers accuracy to
0.01% or better and wide bandwidth performance previ-
ously available only in hybrids.The AD841’s thermally balanced layout and the speed
of the CB process allow the AD841 to settle to 0.01% in
110 ns without the long “tails” that occur with other
fast op amps.Laser wafer trimming reduces the input offset voltage to
1 mV max on the K grade, thus eliminating the need for
external offset nulling in many applications. Offset null
pins are provided for additional versatility.The AD841 is an enhanced replacement for the
HA2541.
AD841–SPECIFICATIONSINPUT OFFSET VOLTAGE
INPUT CHARACTERISTICS
OPEN-LOOP GAIN
OVERDRIVE RECOVERY
DIFFERENTIAL GAIN
NOTESStandard Military Drawing Available: 5962-89641012A – (SE/883B); 5962-8964101CA – (SQ/883B).Input offset voltage specifications are guaranteed after 5 minutes at TA = +25°C.
(@ +258C and 615 V dc, unless otherwise noted)
ABSOLUTE MAXIMUM RATINGS1Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±18 V
Internal Power Dissipation2
TO-8 (H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.4 W
Plastic (N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5 W
Cerdip (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3 W
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±Vs
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .±6 V
Storage Temperature Range
Q, H, E . . . . . . . . . . . . . . . . . . . . . . . . . .–65°C to +150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .–65°C to +125°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+175°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . .+300°C
NOTESStresses 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 section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.Maximum internal power dissipation is specified so that TJ does not exceed
+175°C at an ambient temperature of +25°C.
Thermal Characteristics:
θJCθJAθSA
Cerdip Package35°C/W110°C/W38°C/WRecommended Heat Sink:
TO-8 Package30°C/W100°C/W37°C/WAavid Engineering© #602B
Plastic Package30°C/W100°C/W
LCC Package35°C/W150°C/W
METALIZATION PHOTOGRAPHContact factory for latest dimensions.
Dimensions shown in inches and (mm).
Figure 1.Input Common-Mode
Range vs. Supply Voltage
Figure 4.Quiescent Current vs.
Supply Voltage
Figure 7.Quiescent Current vs.
Temperature
AD841–Typical Characteristics
(at +258C and VS = 615 V, unless otherwise noted)Figure 2.Output Voltage Swing
vs. Supply Voltage
Figure 5.Input Bias Current vs.
Temperature
Figure 8.Short-Circuit Current
Limit vs. Temperature
Figure 3.Output Voltage Swing
vs. Load Resistance
Figure 6.Output Impedance vs.
Frequency
Figure 9.Gain Bandwidth Product
vs. Temperature
Figure 10.Open-Loop Gain and
Phase Margin vs. Frequency
Figure 13.Common-Mode
Rejection vs. Frequency
Figure 16.Harmonic Distortion vs.
Frequency
Figure 12.Power Supply Rejection
vs. Frequency
Figure 15.Output Swing and
Error vs. Settling Time
Figure 18.Input Voltage Noise
Spectral Density
Figure 11.Open-Loop Gain vs.
Supply Voltage
Figure 14.Large Signal Frequency
Response
Figure 17.Slew Rate vs.
Temperature
AD841
INPUT CONSIDERATIONSAn input resistor (RIN in Figure 20) is recommended in circuits
where the input to the AD841 will be subjected to transient or
continuous overload voltages exceeding the ±6 V maximum dif-
ferential limit. This resistor provides protection for the input
transistors by limiting the maximum current that can be forced
into the input.
For high performance circuits it is recommended that a resistor
(RB in Figures 19 and 20) be used to reduce bias current errors
by matching the impedance at each input. The output voltage
error caused by the offset current is more than an order of mag-
nitude less than the error present if the bias current error is not
removed.
AD841 SETTLING TIMEFigures 22 and 24 show the settling performance of the AD841
in the test circuit shown in Figure 23.
Settling time is defined as:
The interval of time from the application of an ideal step
function input until the closed-loop amplifier output has
entered and remains within a specified error band.
This definition encompasses the major components which com-
prise settling time. They include (1) propagation delay through
the amplifier; (2) slewing time to approach the final output
Figure 19a.Inverting Amplifier
Configuration (DIP Pinout)
Figure 20a.Unity-Gain Buffer Amplifier
Configuration (DIP Pinout)
Figure 19b.Inverter Large Signal
Pulse Response
Figure 20b.Buffer Large Signal
Pulse Response
Figure 19c.Inverter Small Signal
Pulse Response
Figure 20c.Buffer Small Signal
Pulse Response
OFFSET NULLINGThe input offset voltage of the AD841 is very low for a high
speed op amp, but if additional nulling is required, the circuit
shown in Figure 21 can be used.
Figure 21.Offset Nulling (DIP Pinout)
