Datasheet AD8037-EP (Analog Devices)

Low Distortion, Wide Bandwidth Voltage Feedback Clamp Amp Enhanced Product AD8037-EP FEATURES FUNCTIONAL BLOCK DIAGRAM Superb clamping characteristics NC 1 AD8037-EP 8 VH 3 mV clamp error –INPUT 2 7 +VS 1.5 ns overdrive recovery +INPUT 3 6 OUTPUT Minimized nonlinear clamping region –VS 4 5 VL 240 MHz clamp input bandwidth
01
NC = NO CONNECT. DO NOT CONNECT
0 0-
±3.9 V clamp input range TO THIS PIN.
76 13
Wide bandwidth
Figure 1.
Small signal: 270 MHz Large signal (4 V p-p): 190 MHz Good dc characteristics 2 mV offset 10 μV/°C drift Ultralow distortion, low noise −72 dBc typical at 20 MHz 4.5 nV/√Hz input voltage noise High speed Slew rate 1500 V/μs Settling 10 ns to 0.1%, 16 ns to 0.01% ±3 V to ±5 V supply operation ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Extended industrial temperature range: −55°C to +105°C Controlled manufacturing baseline One assembly/test site
The AD8037-EP, which utilizes a voltage feedback architecture,
One fabrication site
meets the requirement of many applications which previously
Product change notification
depended on current feedback amplifiers. The AD8037-EP exhibits
Qualification data available on request
an exceptionally fast and accurate pulse response (16 ns to 0.01%),
APPLICATIONS
extremely wide small-signal and large-signal bandwidths and
ADC buffer
ultralow distortion. The AD8037-EP recovers from 2× clamp
IF/RF signal processing
overdrive within 1.5 ns. These characteristics position the
High quality imaging
AD8037-EP ideally for driving as well as buffering flash and
Broadcast video systems
high resolution ADCs.
Video amplifier
In addition to traditional output clamp amplifier applications,
Full wave rectifier
the input clamp architecture supports the clamp levels as
GENERAL DESCRIPTION
additional input to the amplifier. As such, in addition to static dc clamp levels, signals with speeds up to 240 MHz can be The AD8037-EP is a wide bandwidth, low distortion clamping applied to the clamp pins. The clamp values can be set to any amplifier. The AD8037-EP is stable at a gain of two or greater. This value within the output voltage range provided that V device allows the designer to specify a high (V H is greater CH) and low (VCL) than V output clamp voltage. The output signal clamps at these specified L. Due to these clamp characteristics, the AD8037-EP can be used in nontraditional applications such as a full wave levels. Utilizing a unique patent pending CLAMPING™ input rectifier, a pulse generator, or an amplitude modulator. These clamp architecture, the AD8037-EP offers a 10× improvement in novel applications are only examples of some of the diverse clamp performance compared to traditional output clamping applications which can be designed with input clamps. devices. In particular, clamp error is typically 3 mV or less and distortion in the clamp region is minimized. This product can be Additional application and technical information can be found used as a classical op amp or clamp amplifier. in the AD8037 data sheet.
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Document Outline FEATURES ENHANCED PRODUCT FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS OUTLINE DIMENSIONS ORDERING GUIDE