Data Sheets   Rev C, 01/2000 (pdf, 285K) Email PDF      More Data Sheets...    Lead(Pb) - Free Data (Data Sheet Help)     Application Notes Evaluation Boards pdf(333k) Price, Packaging, and Availability

	Product Description
	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 ...More

Specifications Dynamic Range (dB) 50dB Temp Stability (dB) ±1dB Phase Accuracy (deg) n/a Response Time (ns typ) 10ns Voltage Supply (V) +/- 4.5 to +/- 7.5 Supply Current (max) 44mA Limiter Output Yes AC Linearity (± dB) 3dB Power Consumption (mW) 200mW Package 20-Lead DIP, 20-Lead LCC, 20-Lead PLCC Find Similar Products

Functional Block Diagram Enlarge Symbols and Footprints

Features Complete, Fully Calibrated Monolithic System Five Stages, Each Having 10 dB Gain, 350 MHz BW Direct Coupled Fully Differential Signal Path Logarithmic Slope, Intercept and AC Response are Stable Over Full Military Temperature Range Dual Polarity Current Outputs Scaled 1 mA/Decade Voltage Slope Operation (1 V/Decade, 100 mV/dB, etc.) Low Power Operation (Typically 220 mW at ±5 V) Low Cost Plastic Packages Also Available

 

Design Tools Impedance Matching Tutorial This tutorial examines the Smith Chart and its application to transmission line impedance matching. Power Dissipation vs Die Temp This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.

 

Price, Packaging, and Availability Print Table AD640 Model Options Model Status Package Pins Temp Range Price* (100-499) Available RoHS Compliant Samples Cart Purchase Cart 5962-9095501M2A Prodn 20 ld LCC 20 Mil $416.60 5/23/2008 N Material Declaration Contact ADI Add to Cart 5962-9095501MRA Prodn S/B OR B/B CERAMIC DIP 20 Mil $424.59 5/23/2008 N Material Declaration Contact ADI Add to Cart AD640BD Prodn S/B OR B/B CERAMIC DIP 20 Ind $130.44 5/23/2008 N Material Declaration Contact ADI Add to Cart AD640BE Prodn 20 ld LCC 20 Ind $130.56 7/4/2008 N Material Declaration Contact ADI Add to Cart AD640BP Prodn 20 ld PLCC 20 Ind $92.77 7/25/2008 N Material Declaration Contact ADI Add to Cart AD640BPZ Prodn 20 ld PLCC 20 Ind $88.73 7/25/2008 Y Material Declaration Contact ADI Add to Cart AD640JN Prodn 20 ld PDIP 20 Comm $41.69 5/23/2008 N Material Declaration Contact ADI Add to Cart AD640JNZ Prodn 22 ld PDIP 20 Comm $39.88 5/23/2008 Y Material Declaration Contact ADI Add to Cart AD640JP Prodn 20 ld PLCC 20 Comm $41.69 5/23/2008 N Material Declaration Contact ADI Add to Cart AD640JP-REEL7 Prodn 20 ld PLCC 20 Comm $41.69 - N Material Declaration Contact ADI Add to Cart AD640JPZ Prodn 20 ld PLCC 20 Comm $39.88 5/23/2008 Y Material Declaration Contact ADI Add to Cart AD640JPZ-REEL7 Prodn 20 ld PLCC 20 Comm $39.88 5/23/2008 Y Material Declaration Contact ADI Add to Cart AD640TD/883B Prodn S/B OR B/B CERAMIC DIP 20 Mil $385.99 5/23/2008 N Material Declaration Contact ADI Add to Cart AD640TE/883B Prodn 20 ld LCC 20 Mil $378.14 5/23/2008 N Material Declaration Contact ADI Add to Cart The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. View Sales and Distribution Offices

 

Suggested Complementary Products AD8055: Low Cost, Single, 300 MHz Voltage Feedback Amplifier Signal Chains Visit our interactive signal chains for more complementary products

 

Find Similar Products     Part# RF Frequency (MHz) Dynamic Range (dB) Temp Stability (dB) Response Time (ns typ) Voltage Supply (V) Supply Current (max) Package Price* (1000 pcs.) AD8312 50 to 3500 45 ±0.5 70 2.7 to 5.5 4.2 WLCSP $1.25 AD606 - 80 - 400 4.5 to 5.5 13 16-Lead DIP; 16-Lead SOIC $21.74 AD8313 100 to 2500 70 ±1.25 40 2.7 to 5.5 14 8-Lead uSOIC $7.90 AD641 - 44 ±1 10 +/- 4.5 to +/- 7.5 44 20-Lead DIP; 20-Lead LCC; 20-Lead PLCC $32.43 AD8314 100 to 2700 45 ±1 70 2.7 to 5.5 4.5 8-Lead uSOIC/CSP $1.09 AD8306 5 to 400 100 ±1 73 2.7 to 5.5 16 16-Lead SOP $14.50 AD8315 100 to 2500 50 ±1 150 2.7 to 5.5 8.5 8-Lead uSOIC $3.95 AD8309 5 to 500 100 ±1 67 2.7 to 5.5 16 16-Lead TSSOP $7.75 AD8316 100 to 2500 49 ±1 50 2.7 to 5.5 8.5 16-Lead CSP $100.00 AD8311 100 to 2500 50 ±0.5 150 2.7 to 5.5 8.5 WLCSP $1.25 AD8302 2,700 60 ±1 60 2.7 to 5.5 19 14-Lead TSSOP $12.00 AD8307 dc to 500 92 ±1 400 2.7 to 5.5 8 8-Lead SOIC/DIP $6.00 AD8310 dc to 440 100 ±1 15 2.7 to 5.5 8 8-Lead SOIC $3.95 AD640 - 50 ±1 10 +/- 4.5 to +/- 7.5 44 20-Lead DIP; 20-Lead LCC; 20-Lead PLCC $36.05 AD8317 1 to 10000 55 ±0.5 6 3 to 5.5 20 8-Lead CSP $3.93 AD8318 1 to 8000 70 ±0.5 10 4.5 to 5.5 68 16-Lead CSP $4.99 AD8319 1 to 10000 45 ±0.5 6 3 to 5.5 22 8-Lead CSP $1.75 ADL5519 1 kHz to 10000 62 ±0.5 6 3 to 5.5 56 32-Lead LFCSP $4.98 * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.