AD603AR
The AD603 is a low noise, voltage-controlled amplifier for use
in RF and IF AGC systems. It provides accurate, pin-selectable
gains of ?11 dB to 31 dB with a bandwidth of 90 MHz or 9 dB to
51 dB with a bandwidth of 9 MHz. Any intermediate gain
range may be arranged using one external resistor. The input
referred noise spectral density is only 1.3 nV/?Hz, and power
consumption is 125 mW at the recommended ?5 V supplies.
AD606JN
The AD606 is a complete, monolithic logarithmic amplifier
using a 9-stage ?successive-detection? technique. It provides
both logarithmic and limited outputs. The logarithmic output is
from a three-pole post-demodulation low-pass filter and provides
a loadable output voltage of 0.1 V dc to 4 V dc. The logarithmic scaling is such that the output is 0.5 V for a sinusoidal
input of ?75 dBm and 3.5 V at an input of 5 dBm; over this
range the logarithmic linearity is typically within ?0.4 dB. All
scaling parameters are proportional to the supply voltage.
AD640TE/883B
The AD640 is a complete monolithic logarithmic amplifier. A single
AD640 provides up to 50 dB of dynamic range for frequencies
from dc to 120 MHz. Two AD640s in cascade can provide up to
95 dB of dynamic range at reduced bandwidth. The AD640 uses a
successive detection scheme to provide an output current proportional to the logarithm of the input voltage. It is laser calibrated to
close tolerances and maintains high accuracy over the full military
temperature range using supply voltages from ?4.5 V to ?7.5 V.
The AD640 comprises five cascaded dc-coupled amplifier/limiter
stages, each having a small signal voltage gain of 10 dB and a ?3 dB
bandwidth of 350 MHz. Each stage has an associated full-wave
detector, whose output current depends on the absolute value of its
input voltage. The five outputs are summed to provide the video
output (when low-pass filtered) scaled at 1 mA per decade (50 ?A
per dB). On chip resistors can be used to convert this output current to a voltage with several convenient slope options.
AD654JR
The AD654 is a monolithic V/F converter consisting of an input
amplifier, a precision oscillator system, and a high current output
stage. A single RC network is all that is required to set up any
full scale (FS) frequency up to 500 kHz and any FS input voltage
up to ? 30 V. Linearity error is only 0.03% for a 250 kHz FS,
and operation is guaranteed over an 80 dB dynamic range. The
overall temperature coefficient (excluding the effects of external
components) is typically ?50 ppm/?C. The AD654 operates from
a single supply of 5 V to 36 V and consumes only 2.0 mA quiescent current
AD7248AARZ
The AD7245A/AD7248A is an enhanced version of the industry
standard AD7245/AD7248. Improvements include operation
from 12 V to 15 V supplies, a ? 1/2 LSB linearity grade, faster
interface times and better full scale and reference variations with
VDD. Additional features include extended temperature range
operation for commercial and industrial grades.
The AD7245A/AD7248A is a complete, 12-bit, voltage output,
digital-to-analog converter with output amplifier and Zener voltage
reference on a monolithic CMOS chip. No external user trims
are required to achieve full specified performance.
