AD8310ARMZ Analog Devices Inc, AD8310ARMZ Datasheet
AD8310ARMZ
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AD8310ARMZ Summary of contents
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FEATURES Multistage demodulating logarithmic amplifier Voltage output, rise time <15 ns High current capacity into grounded dynamic range: −91 dBV to +4 dBV Single supply of 2.7 V min typ DC to ...
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AD8310 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Pin Configuration and Function Descriptions ...
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SPECIFICATIONS T = 25° unless otherwise noted Table 1. Parameter Test Conditions/Comments INPUT STAGE Inputs INHI, INLO 1 Maximum Input Single-ended, p-p Equivalent Power in 50 Ω Termination resistor of 52.3 Ω Differential drive, ...
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AD8310 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage Input Power (re 50 Ω), Single-Ended Differential Drive Internal Power Dissipation θ JA Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Lead Temperature (Soldering 60 sec) Stresses above ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1 INLO One of Two Balanced Inputs. Biased roughly to VPOS/2. 2 COMM Common Pin. Usually grounded. 3 OFLT Offset Filter Access. Nominally at about 1.75 ...
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AD8310 TYPICAL PERFORMANCE CHARACTERISTICS 3.0 2.5 2.0 1 –40° +25° +85° –120 –100 –80 –60 –40 (–87dBm) INPUT LEVEL (dBV) Figure 3. RSSI Output vs. Input Level, 100 ...
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PER 100pF VERTICAL V OUT DIVISION 3300pF 0.01μF GROUND REFERENCE 50μs PER HORIZONTAL DIVISION Figure 9. Small-Signal AC Response of RSSI Output with External BFIN Capacitance of 100 pF, 3300 pF, and 0.01 μF V OUT 100Ω 154Ω 500mV ...
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AD8310 100 +85°C A 0.1 0. +25°C A 0.001 0.0001 T = –40°C A 0.00001 0.5 0.7 0.9 1.1 1.3 1.5 1.7 ENABLE VOLTAGE (V) Figure 15. Supply Current vs. Enable Voltage at T ...
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THEORY OF OPERATION Logarithmic amplifiers perform a more complex operation than classical linear amplifiers, and their circuitry is significantly different. A good grasp of what log amps do and how they do it can help users avoid many pitfalls in ...
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AD8310 SLOPE AND INTERCEPT CALIBRATION All monolithic log amps from Analog Devices use precision design techniques to control the logarithmic slope and intercept. The primary source of this calibration is a pair of accurate voltage references that provide supply- and ...
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PRODUCT OVERVIEW The AD8310 has six main amplifier/limiter stages. These six cells and their and associated g styled full-wave detectors m handle the lower two-thirds of the dynamic range. Three top- end detectors, placed at 14.3 dB taps on a ...
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AD8310 S 6kΩ COM 2kΩ 6kΩ INHI 8 TOP-END 4kΩ C ~3kΩ D DETECTORS 1 INLO TYP 2.2V FOR SUPPLY, 3. COM S 2 COMM Figure 24. Signal Input Interface Occasionally, it might ...
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For zero-signal conditions, all the detector output currents are equal. For a finite input of either polarity, their difference is converted by the output interface to a single-sided unipolar current, nominally scaled 2 μA/dB (40 μA/decade), at the output pin ...
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AD8310 USING THE AD8310 The AD8310 has very high gain and bandwidth. Consequently susceptible to all signals that appear at the input terminals within a very broad frequency range. Without the benefit of filtering, these are indistinguishable from ...
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DYNAMIC RANGE 3 2 ±1dB DYNAMIC RANGE 1 0 –1 –2 –3 –4 –5 –120 –100 –80 –60 –40 (–87dBm) INPUT LEVEL (dBV) Figure 30. Log Conformance Error vs. Input Level at 10 MHz, 50 MHz, and ...
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AD8310 NARROW-BAND MATCHING Transformer coupling is useful in broadband applications. However, a magnetically coupled transformer might not be convenient in some situations. Table 5 lists narrow-band matching values. Table 5. Narrow-Band Matching Values (MHz) ...
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Step 4: Calculate L M The matching inductor required to provide both L the parallel combination of these With L = 1.8 μH and L = ...
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AD8310 OUTPUT FILTERING For applications in which maximum video bandwidth and, consequently, fast rise time are desired essential that the BFIN pin be left unconnected and free of any stray capacitance. The nominal output video bandwidth of 25 ...
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APPLICATIONS INFORMATION The AD8310 is highly versatile and easy to use. It needs only a few external components, most of which can be immediately accommodated using the simple connections shown in the Using the AD8310 section. A few examples of ...
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AD8310 EVALUATION BOARD An evaluation board is available that has been carefully laid out and tested to demonstrate the specified high speed performance of the AD8310. Figure 40 shows the schematic of the evaluation board, which follows the basic connections ...
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Table 6. Evaluation Board Setup Options Component Function TP1, TP2 Supply and Ground Vector Pins. SW1 Device Enable. When in Position A, the ENBL pin is connected to +V operating mode. When in Position B, the ENBL pin is connected ...
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AD8310 DIE INFORMATION Table 7. Die Pad Function Descriptions Pin No. Mnemonic Description 1 INLO One of Two Balanced Inputs. Biased roughly to VPOS/2. 2 COMM Common Pin. Usually grounded. 3 OFLT Offset Filter Access. Nominally at about 1.75 V. ...
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... OUTLINE DIMENSIONS IDENTIFIER ORDERING GUIDE 1 Model Temperature Range AD8310ARM −40°C to +85°C AD8310ARM-REEL7 −40°C to +85°C AD8310ARMZ −40°C to +85°C AD8310ARMZ-REEL7 −40°C to +85°C AD8310ACHIPS −40°C to +85°C AD8310-EVAL RoHS Compliant Part. 3.20 3.00 2.80 5. ...
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AD8310 NOTES © 2005–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D01084–0–6/10(F) Rev Page ...