AD8037 ,Low Distortion, Wide Bandwidth Voltage Feedback Clamp AmpsSpecifications subject to change without notice.–2– REV. BAD8036/AD80371MAXIMUM POWER DISSIPATIONAB ..
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AD8037AR ,Low Distortion, Wide Bandwidth Voltage Feedback Clamp AmpsCharacteristics8-Lead Plastic DIP (N), Cerdip (Q),3 mV Clamp Errorand SO Packages1.5 ns Overdrive R ..
AD8037AR-REEL ,Low Distortion, Wide Bandwidth Voltage Feedback Clamp Ampsapplications which–1previously depended on current feedback amplifiers. TheV = –2VL –2AD8036 and A ..
AD8038AKSZ-R2 , Low Power, 350 MHz Voltage Feedback Amplifiers
AD8039AR ,Low Power 350 MHz Voltage Feedback AmplifiersSPECIFICATIONS (T = 25C, V = 5 V, R = 2 k, Gain = +1, unless otherwise noted.)A S LParameter Con ..
ADM809LART ,Microprocessor Supervisory Circuit in 3-Pin SOT-23features built-in glitch immunity,making it immune to fast transients on V .CCFigure 1. Typical Ope ..
ADM809LART ,Microprocessor Supervisory Circuit in 3-Pin SOT-23features built-in glitch immunity,making it immune to fast transients on V .CCFigure 1. Typical Ope ..
ADM809LART-REEL ,Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23APPLICATIONSMicroprocessor SystemsADM809 / ADM810ComputersControllersVCCRESETRESETIntelligent Instr ..
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ADM809LART-REEL7 ,Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23Microprocessor Supervisory Circuitsin 3-Lead SC70 and SOT-23ADM803/ADM809/ADM810
ADM809MAKS-REEL7 ,Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23APPLICATIONSMicroprocessor SystemsADM809 / ADM810ComputersControllersVCCRESETRESETIntelligent Instr ..
AD8037
Unity Gain Stable
REV.B
large-signal bandwidths and ultralow distortion. The AD8036
achieves –66 dBc at 20 MHz, and 240 MHz small-signal and
195 MHz large-signal bandwidths. The AD8036 and AD8037’s
recover from 2× clamp overdrive within 1.5 ns. These character-
istics position the AD8036/AD8037 ideally for driving as well as
buffering flash and high resolution ADCs.
In addition to traditional output clamp amplifier applications,
the input clamp architecture supports the clamp levels as addi-
tional inputs to the amplifier. As such, in addition to static dc
clamp levels, signals with speeds up to 240 MHz can be applied
to the clamp pins. The clamp values can also be set to any value
within the output voltage range provided that VH is greater that
VL. Due to these clamp characteristics, the AD8036 and AD8037
can be used in nontraditional applications such as a full-wave
rectifier, a pulse generator, or an amplitude modulator. These
novel applications are only examples of some of the diverse
applications which can be designed with input clamps.
The AD8036 is offered in chips, industrial (–40°C to +85°C)
and military (–55°C to +125°C) package temperature ranges
and the AD8037 in industrial. Industrial versions are available
in plastic DIP and SOIC; MIL versions are packaged in cerdip.
Figure 1.Clamp DC Accuracy vs. Input Voltage
FEATURES
Superb Clamping Characteristics
3 mV Clamp Error
1.5 ns Overdrive Recovery
Minimized Nonlinear Clamping Region
240 MHz Clamp Input Bandwidth�3.9 V Clamp Input Range
Wide BandwidthAD8036AD8037
Small Signal240 MHz270 MHz
Large Signal (4 V p-p)195 MHz190 MHz
Good DC Characteristics
2 mV Offset
10 �V/�C Drift
Ultralow Distortion, Low Noise
–72 dBc typ @ 20 MHz
4.5 nV/√Hz Input Voltage Noise
High Speed
Slew Rate 1500 V/�s
Settling 10 ns to 0.1%, 16 ns to 0.01%�3 V to �5 V Supply Operation
APPLICATIONS
ADC Buffer
IF/RF Signal Processing
High Quality Imaging
Broadcast Video Systems
Video Amplifier
Full Wave Rectifier
FUNCTIONAL BLOCK DIAGRAM
8-Lead Plastic DIP (N), Cerdip (Q),
and SO Packages
Low Distortion, Wide Bandwidth
Voltage Feedback Clamp Amps
PRODUCT DESCRIPTIONThe AD8036 and AD8037 are wide bandwidth, low distortion
clamping amplifiers. The AD8036 is unity gain stable. The
AD8037 is stable at a gain of two or greater. These devices
allow the designer to specify a high (VCH) and low (VCL) output
clamp voltage. The output signal will clamp at these specified
levels. Utilizing a unique patent pending CLAMPIN™ input
clamp architecture, the AD8036 and AD8037 offer a 10×
improvement in clamp performance compared to traditional
output clamping devices. In particular, clamp error is typically
3 mV or less and distortion in the clamp region is minimized.
This product can be used as a classical op amp or a clamp
amplifier where a high and low output voltage are specified.
The AD8036 and AD8037, which utilize a voltage feedback
architecture, meet the requirements of many applications which
previously depended on current feedback amplifiers. The AD8036
and AD8037 exhibit an exceptionally fast and accurate pulse
response (16 ns to 0.01%), extremely wide small-signal and
CLAMPIN is a trademark of Analog Devices, Inc.
AD8036/AD8037–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(�VS = �5 V; RLOAD = 100 �; AV = +1 (AD8036); AV = +2 (AD8037), VH, VL open, unless
otherwise noted)NOTES
ABSOLUTE MAXIMUM RATINGS1SupplyVoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12.6V
Voltage Swing × Bandwidth Product . . . . . . . . . . .350 V-MHz
|VH–VIN| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .≤ 6.3 V
|VL–VIN| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .≤ 6.3 V
InternalPowerDissipation2
PlasticDIP Package (N) . . . . . . . . . . . . . . . . . . . .1.3Watts
SmallOutlinePackage (SO) . . . . . . . . . . . . . . . . . .0.9Watts
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . .±VS
DifferentialInputVoltage . . . . . . . . . . . . . . . . . . . . . . .±1.2V
Output Short Circuit Duration. . . . . . . . . . . . . . . . . . . . .Observe Power Derating Curves
Storage Temperature Range N, R . . . . . . . . .–65°C to +125°C
Operating Temperature Range (A Grade) . . .–40°C to +85°C
Lead Temperature Range (Soldering10sec) . . . . . . . . .300°C
NOTESStresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; 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.Specification is for device in free air:
8-Lead Plastic DIP: θJA = 90°C/W
8-Lead SOIC: θJA = 155°C/W
8-Lead Cerdip: θJA = 110°C/W.
MAXIMUM POWER DISSIPATIONThe maximum power that can be safely dissipated by these
devices is limited by the associated rise in junction temperature.
The maximum safe junction temperature for plastic encapsulated
devices is determined by the glass transition temperature of the
plastic, approximately 150°C. Exceeding this limit temporarily
may cause a shift in parametric performance due to a change
in the stresses exerted on the die by the package. Exceeding
a junction temperature of 175°C for an extended period can
result in device failure.
While the AD8036 and AD8037 are internally short circuit pro-
tected, this may not be sufficient to guarantee that the maxi-
mum junction temperature (150°C) is not exceeded under all
conditions. To ensure proper operation, it is necessary to observe
the maximum power derating curves.
Figure 2.Plot of Maximum Power Dissipation vs.
Temperature
METALIZATION PHOTODimensions shown in inches and (mm).
Connect Substrate to –VS.
ORDERING GUIDE
CAUTIONESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
AD8036/AD8037TPC 1.Noninverting Configuration, G = +1
TPC 2.Large Signal Transient Response; VO = 4 V
p-p, G = +1, RF = 140 Ω
TPC 3.Small Signal Transient Response; VO = 400 mV p-p,
G = +1, RF = 140 Ω
AD8036–Typical CharacteristicsTPC 4.Noninverting Clamp Configuration, G = +1
TPC 5.Clamped Large Signal Transient Response (2×
Overdrive); VO = 2 V p-p, G = +1, RF = 140 Ω, VH = +1 V,
VL = –1 V
TPC 6.Clamped Small Signal Transient Response
(2× Overdrive); VO = 400 mV p-p, G = +1, RF = 140 Ω,
VH = +0.2V, VL = –0.2 V
AD8037–Typical CharacteristicsTPC 7.Noninverting Configuration, G = +2
TPC 8.Large Signal Transient Response; VO = 4 V p-p,
G = +2, RF = RIN = 274 Ω
TPC 9.Small Signal Transient Response;
VO = 400 mV p-p, G = +2, RF = RIN = 274 Ω
TPC 10.Noninverting Clamp Configuration, G = +2
TPC 11.Clamped Large Signal Transient Response
(2× Overdrive); VO = 2 V p-p, G = +2, RF = RIN = 274
Ω, VH = +0.5 V, VL = –0.5 V
TPC 12.Clamped Small Signal Transient Response
(2× Overdrive); VO = 400 mV p-p, G = +2, RF = RIN =
274 Ω, VH = +0.1 V, VL = –0.1 V
AD8036/AD8037
AD8036–Typical CharacteristicsTPC 13.AD8036 Small Signal Frequency Response,
G = +1
TPC 14.AD8036 0.1 dB Flatness, N Package (for R
Package Add 20 Ω to RF)
TPC 15.AD8036 Open-Loop Gain and Phase Margin vs.
TPC 16.AD8036 Small Signal –3 dB Bandwidth vs. RF
TPC 17.AD8036 Large Signal Frequency Response,
G = +1
TPC 18.AD8036 Clamp Input Bandwidth, VH, VL
TPC 19.AD8036 Harmonic Distortion vs. Frequency,
RL = 500 Ω
TPC 20.AD8036 Harmonic Distortion vs. Frequency,
RL = 100 Ω
TPC 21.AD8036 Third Order Intercept vs. Frequency
TPC 22.AD8036 Differential Gain and Phase Error,
G = +1, RL = 150 Ω, F = 3.58 MHz
TPC 23.AD8036 Short-Term Settling Time to 0.01%, 2 V
Step, G = +1, RL = 100 Ω
TPC 24.AD8036 Long-Term Settling Time, 2 V Step,
G = +1, RL = 100 Ω
AD8036/AD8037TPC 25.AD8037 Small Signal Frequency Response,
G = +2
TPC 26.AD8037 0.1 dB Flatness, N Package
(for R Package Add 20 Ω to RF)
TPC 27.AD8037 Open-Loop Gain and Phase Margin
vs. Frequency, RL = 100 Ω
AD8037–Typical CharacteristicsTPC 28.AD8037 Small Signal –3 dB Bandwidth vs. RF, RIN
TPC 29.AD8037 Large Signal Frequency Response, G = +2
TPC 30.AD8037 Clamp Input Bandwidth, VH, VL
TPC 31.AD8037 Harmonic Distortion vs. Frequency,
RL = 500 Ω
TPC 32.AD8037 Harmonic Distortion vs. Frequency,
RL = 100 Ω
TPC 33.AD8037 Third Order Intercept vs. Frequency
TPC 34.AD8037 Differential Gain and Phase Error
G = +2, RL = 150 Ω, F = 3.58 MHz
TPC 35.AD8037 Short-Term Settling Time to 0.01%,
2 V Step, G = +2, RL = 100 Ω
TPC 36.AD8037 Long-Term Settling Time 2 V Step,
RL = 100 Ω
TPC 37.AD8036 Noise vs. Frequency
TPC 38.AD8036 PSRR vs. Frequency
TPC 39.AD8036 CMRR vs. Frequency
AD8036/AD8037–Typical Characteristics
100100k10k1k10
FREQUENCY – Hz
INPUT NOISE VOLTAGE
nV/TPC 40.AD8037 Noise vs. Frequency
TPC 41.AD8037 PSRR vs. Frequency
TPC 42.AD8037 CMRR vs. Frequency
TPC 43.AD8036 Output Resistance vs. Frequency
TPC 44.AD8037 Output Resistance vs. Frequency
TPC 45.AD8036/AD8037 Output Swing vs. Temperature
TPC 46.Open-Loop Gain vs. Temperature
TPC 47.PSRR vs. Temperature
TPC 48.AD8036/AD8037 CMRR vs. Temperature
AD8036/AD8037–Typical Characteristics TPC 49.Supply Current vs. Temperature
TPC 50.Input Offset Voltage vs. Temperature
TPC 51.AD8036 Input Offset Voltage Distribution
TPC 52.Short Circuit Current vs. Temperature
TPC 53.Input Bias Current vs. Temperature
TPC 54.AD8037 Input Offset Voltage Distribution
