Datasheet Analog Devices AD8318

REVISIONS
LTR DESCRIPTION DATE Prepared in accordance with ASME Y14.24 APPROVED Vendor item drawing REV
PAGE
REV
PAGE
REV STATUS
OF PAGES REV
PAGE 1 2 PMIC N/A PREPARED BY
RICK OFFICER Original date of drawing
YY-MM-DD CHECKED BY
RAJESH PITHADIA 12-12-12 4 A
REV 5 6 7 8 9 10 11 12 13 14 15 16 17 DLA LAND AND MARITIME
COLUMBUS, OHIO 43218-3990
http://www.landandmaritime.dla.mil/
TITLE
MICROCIRCUIT, LINEAR, 1 MHz TO 8 GHz, 70 dB
LOGARITHMIC DETECTOR/CONTROLLER,
MONOLITHIC SILICON APPROVED BY
CHARLES F. SAFFLE
SIZE AMSC N/A 3 CODE IDENT. NO. DWG NO. V62/12665 16236
PAGE 1 OF 17
5962-V012-13 1. SCOPE
1.1 Scope. This drawing documents the general requirements of a high performance 1 MHz to 8GHz, 70 dB logarithmic …

1 MHz to 8 GHz, 70 dB
Logarithmic Detector/Controller
AD8318 Data Sheet
FEATURES FUNCTIONAL BLOCK DIAGRAM
VPSI TEMP
SENSOR TEMP DET TADJ ENBL DET GAIN
BIAS DET VPSO SLOPE I V VSET I V VOUT DET
CLPF INHI
INLO CMIP 04853-001 Wide bandwidth: 1 MHz to 8 GHz
High accuracy: ±1.0 dB over 55 dB range (f < 5.8 GHz)
Stability over temperature: ±0.5 dB
Low noise measurement/controller output (VOUT)
Pulse response time: 10 ns/12 ns (fall/rise)
Integrated temperature sensor
Small footprint LFCSP
Power-down feature: …

FEATURES FUNCTIONAL BLOCK DIAGRAM
VPSI ENBL TEMP
SENSOR TEMP DET DET TADJ GAIN
BIAS VPSO SLOPE DET I V VSET I V VOUT DET
CLPF INHI CMIP APPLICATIONS 10783-001 INLO CMOP Figure 1.
2.4 6 2.2 5 2.0 4 GENERAL DESCRIPTION 1.8 3 1.6 2 1.4 1 1.2 0 1.0 –1 0.8 –2 0.6 –3 0.4 –4 The AD8318-EP is a demodulating logarithmic amplifier,
capable of accurately converting an RF input signal to a
corresponding decibel-scaled output voltage. It employs the
progressive compression technique over a cascaded amplifier
chain, each stage of which is equipped with a detector cell.
The device is used in measurement or controller mode. The
AD8318-EP maintains accurate log conformance for signals of
1 MHz to 6 GHz and provides useful operation to 8 GHz. The
input range is typically 60 dB (re: 50 Ω) with error less than
±1 dB. The AD8318-EP has a 10 ns response time that enables
RF burst detection to beyond 45 MHz. The device provides
unprecedented logarithmic intercept stability vs. ambient
temperature conditions. A 2 mV/°C slope temperature sensor
output is also provided for additional system monitoring.
A single supply of 5 V is required. Current consumption is
typically 68 mA. Power consumption decreases to …

1 MHz to 8 GHz, 70 dB
Logarithmic Detector/Controller
AD8318 Data Sheet
FEATURES FUNCTIONAL BLOCK DIAGRAM
VPSI ENBL TEMP
SENSOR TEMP DET DET TADJ GAIN
BIAS DET VPSO SLOPE I V VSET I V VOUT DET
CLPF INHI
INLO 04853-001 Wide bandwidth: 1 MHz to 8 GHz
High accuracy: ±1.0 dB over 55 dB range (f < 5.8 GHz)
Stability over temperature: ±0.5 dB
Low noise measurement/controller output (VOUT)
Pulse response time: 10 ns/12 ns (fall/rise)
Integrated temperature sensor
Small footprint LFCSP
Power-down feature: …