DataSheet39.com

AD8307 Datasheet PDF - Analog Devices

Part Number AD8307
Description Low Cost DC-500 MHz/ 92 dB Logarithmic Amplifier
Manufacturers Analog Devices 
Logo Analog Devices Logo 



Preview ( 24 pages )
		
AD8307 datasheet, circuit
Data Sheet
FEATURES
Complete multistage logarithmic amplifier
92 dB dynamic range: −75 dBm to +17 dBm to −90 dBm
using matching network
Single supply of 2.7 V minimum at 7.5 mA typical
DC to 500 MHz operation, ±1 dB linearity
Slope of 25 mV/dB, intercept of −84 dBm
Highly stable scaling over temperature
Fully differential dc-coupled signal path
100 ns power-up time, 150 μA sleep current
APPLICATIONS
Conversion of signal level to decibel form
Transmitter antenna power measurement
Receiver signal strength indication (RSSI)
Low cost radar and sonar signal processing
Network and spectrum analyzers (to 120 dB)
Signal level determination down to 20 Hz
True decibel ac mode for multimeters
GENERAL DESCRIPTION
The AD8307 is the first logarithmic amplifier made available in
an 8-lead SOIC_N package. It is a complete 500 MHz monolithic
demodulating logarithmic amplifier based on the progressive
compression (successive detection) technique, providing a
dynamic range of 92 dB to ±3 dB law conformance and 88 dB to
a tight ±1 dB error bound at all frequencies up to 100 MHz. The
AD8307 is extremely stable and easy to use, requiring no significant
external components. A single-supply voltage of 2.7 V to 5.5 V
at 7.5 mA is needed. A fast acting CMOS-compatible control
pin can disable the AD8307 to a standby current of 150 μA.
The AD8307 operates over the industrial temperature range of
−40°C to +85°C and is available in an 8-lead SOIC package and
an 8-lead PDIP.
Low Cost, DC to 500 MHz, 92 dB
Logarithmic Amplifier
AD8307
FUNCTIONAL BLOCK DIAGRAM
VPS 7
7.5mA
AD8307
BAND GAP REFERENCE
AND BIASING
6 ENB
INP
+INP
8
INM 1 1.1k
–INP 3
SIX 14.3dB 900MHz
AMPLIFIER STAGES
COM 2
NINE DETECTOR CELLS
SPACED 14.3dB
INPUT-OFFSET
COMPENSATION LOOP
5 INT
MIRROR
2µA
/dB
2
4 OUT
12.5k
COM
3 OFS
Figure 1.
Table 1. Next Generation Upgrades for the AD8307
Device No. Product Description
AD8310 15 ns Response Time, Buffered Output
ADL5513
Lower Input Range (80 dB), Operation to 4 GHz,
Higher Power Consumption
AD8309 Higher Input Range (100 dB), Limiter Output
Rev. E
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©1997–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com

No Preview Available !


1 page
line_dark_gray
AD8307 equivalent
Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
AD8307
INM 1
8 INP
COM 2 AD8307 7 VPS
OFS 3 TOP VIEW 6 ENB
OUT 4 (Not to Scale) 5 INT
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1 INM Signal Input Minus Polarity. Normally at VPOS/2.
2
COM
Common Pin (Usually Grounded).
3 OFS Offset Adjustment. External capacitor connection.
4 OUT Logarithmic (RSSI) Output Voltage. ROUT = 12.5 kΩ.
5 INT
Intercept Adjustment, ±3 dB. (See the Slope and Intercept Adjustments section.)
6 ENB CMOS-Compatible Chip Enable. Active when high.
7 VPS Positive Supply: 2.7 V to 5.5 V.
8 INP
Signal Input Plus Polarity. Normally at VPOS/2. Due to the symmetrical nature of the response, there is no special
significance to the sign of the two input pins. DC resistance from INP to INM = 1.1 kΩ.
Rev. E | Page 5 of 24

5 Page
line_dark_gray


Information Total 24 Pages
Download[ AD8307.PDF Datasheet ]

Share Link :

Electronic Components Distributor

SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Element14 Chip One Stop



Featured Datasheets

Part NumberDescriptionManufacturers
AD830The function is High Speed Video Difference Amplifier.Analog Devices
Analog Devices
AD8300The function is +3 Volt/ Serial Input Complete 12-Bit DAC.Analog Devices
Analog Devices
AD8302The function is RF/IF Gain and Phase Detector.Analog Devices
Analog Devices

Quick jump to:

AD83  1N4  2N2  2SA  2SC  74H  ADC  BC  BF  BU  CXA  HCF  IRF  KA  KIA  LA  LM  MC  NE  ST  STK  TDA  TL  UA 


DataSheet39.com is an Online Datasheet PDF Search Site.
It offers a large amount of data sheet, You can free PDF files download.
The updated every day, always provide the best quality and speed.



keyword : AD8307 schematic, equivalent, pinout, replacement, circuit, manual

DataSheet39.com   |  2019   |  Privacy Policy |  Contact Us  | New  |  Search