AD8304ARUZ-RL7 Analog Devices Inc, AD8304ARUZ-RL7 Datasheet
AD8304ARUZ-RL7
Specifications of AD8304ARUZ-RL7
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AD8304ARUZ-RL7 Summary of contents
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FEATURES Optimized for Fiber Optic Photodiode Interfacing Eight Full Decades of Range Law Conformance 0.1 dB from Single-Supply Operation (3.0 V– 5.5 V) Complete and Temperature Stable Accurate Laser-Trimmed Scaling: Logarithmic Slope of 10 ...
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AD8304–SPECIFICATIONS Parameter Conditions INPUT INTERFACE Pin 4, INPT; Pin 3 and Pin 5, VSUM Specified Current Range Flows toward INPT Pin Input Node Voltage Internally preset; may be altered Temperature Drift –40°C < T Input Guard Offset Voltage V 2 ...
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ABSOLUTE MAXIMUM RATINGS* Supply Voltage V – Input ...
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AD8304–Typical Performance Characteristics ( unless otherwise noted 1 –40 C, + –0.5V 1.4 N 1.2 –40 C 1.0 ...
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A 0 1nA –10 –20 –30 –40 –50 –60 –70 100 1k 10k 100k FREQUENCY – Hz TPC 7. Small Signal AC Response, I (5% Sine Modulation Frequency) PD 100 10kHz 100kHz 10 ...
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AD8304 2 1.5 1.0 0.5 MEAN + 3 0 MEAN – 3 –0.5 –1.0 –1.5 –2.0 100p 1n 10n 100n 1 10 INPUT – A TPC 13. Logarithmic Conformance Error Distribution (3 σ to Either ...
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MEAN + –2 MEAN – 3 –4 –6 –40 –30 –20 – TEMPERATURE – C TPC 19. Output Buffer Offset vs. Temperature (3 σ to Either Side of Mean) 180 ...
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AD8304 BASIC CONCEPTS The AD8304 uses an advanced circuit implementation that exploits the well known logarithmic relationship between the base-to-emitter voltage and collector current bipolar transistor, which is the basis of the important class of translinear ...
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To repeat the previous example: for a reference power level would correspond OPT 4.77 dBm, while the equivalent intercept power of 110 pW will correspond ...
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AD8304 1.6 1.2 0.8 0.4 0 100p 1n 10n 100n 1 INPUT – A Figure 2. Ideal Form of V Using a value of 0.3 pF for C evaluates to 20 MHz/mA. There- J fore, the minimum bandwidth at I ...
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In addition to uses in filter and comparator functions, the buffer amplifier provides the means to adjust both the slope and inter- cept, which require a minimal number of external components. The high input impedance at BFIN, low input offset ...
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AD8304 VPS2 PWDN PDB BIAS VPDB NC 6 ~10k VSUM 3 INPT 4 VSUM TEMPERATURE C1 5 COMPENSATION 1nF 10nF R1 750 1 14 VNEG ACOM CONNECT Figure 5. Method for Raising the ...
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The use of a capacitor at the VLOG Pin to create a single-pole filter has already been mentioned. The small added cost of the few external components needed to realize a multipole filter is often justified in a high performance ...
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AD8304 ACOM Pin, and does not normally go negative with regard to this pin, but is free to do so. Therefore, a resistor from VLOG to the negative supply can lower V , thus raising the intercept. A more LOG ...
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Summing Node at Ground and Voltage Inputs A negative supply may be used to reposition the input node at ground potential. A voltage as small as –0 sufficient. Figure 13 shows the use of this feature. An input ...
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AD8304 VPS2 PWDN 10 2 AD8304 I PD PDB BIAS VPDB NC 6 ~10k VSUM 3 INPT 4 VSUM TEMPERATURE C1 5 COMPENSATION 1nF 10nF R1 750 1 14 VNEG ACOM CONNECT V (–0.5V TO –3V) N ...
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Programmable Multidecade Current Source The AD8304 supports a wide variety of general (nonoptical) applications. For example, the need frequently arises in test equipment to provide an accurate current that can be varied over many decades. This can be achieved using ...
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AD8304 HP 3577A NETWORK ANALYZER OUTPUT INPUT INPUTA INPUTB POWER SPLITTER VNEG 1 PWDN 2 +IN B AD8138 VSUM 3 R1 EVALUATION INPT A 4 BOARD VSUM 5 750 VPDB 6 1nF VREF 7 Figure 20. Configuration for Logarithmic Amplifier ...
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Figure 23. Component Side Layout Component Function AGND Positive and Negative Supply and Ground Pins P N SW1, R10 Device Enable: When SW1 is in the “0” position, the PWDN Pin is connected to ground and ...
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AD8304 14-Lead Thin Shrink Small Outline Package [TSSOP] 1.05 1.00 0.80 Revision History Location 8/02—Data Sheet changed from REV REV. A. Edits to SPECIFICATIONS . . . . . . . . . . . . . . ...