adl5317 Analog Devices, Inc., adl5317 Datasheet
adl5317
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adl5317 Summary of contents
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... Either overstress condition will trigger a logic low at the FALT pin, an open collector output loaded by an external pull- appropriate logic supply (1 mA max). The ADL5317 is available in a 16-lead LFCSP package and is specified for operation from −40°C to +85°C. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...
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... ADL5317 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configuration and Function Descriptions............................. 5 Typical Performance Characteristics ............................................. 6 Theory of Operation ........................................................................ 9 Bias Control Interface .................................................................. 9 GARD Interface ............................................................................ 9 REVISION HISTORY 7/05—Revision 0: Initial Version VCLH Interface .......................................................................... 10 Noise Performance..................................................................... 10 Response Time............................................................................ 10 Device Protection ...
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... V. SET Rev Page ADL5317 Unit Conditions IPDM (Pin 11) A 25°C A −40°C < T < +85° < I < APD % 5 nA < I < APD kHz nA APD PHV APD MHz μ ...
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... ADL5317 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage Input Current at VAPD Internal Power Dissipation θ (Soldered Exposed Paddle) JA Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Lead Temperature Range (Soldering 60 sec) ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection ...
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... Photodiode Monitor Current Output. Sources current only. Current at this node is equal COMM Analog Ground. PIN 1 INDICATOR FALT IPDM VSET 2 ADL5317 VPLV TOP VIEW (Not to Scale) VPHV 4 9 GARD CONNECT Figure 2. Pin Configuration Rev Page ADL5317 to COMM). Optional GRD /5. APD ...
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... ADL5317 TYPICAL PERFORMANCE CHARACTERISTICS PHV PLV APD APD 10m 1m +85°C 100μ –40°C +25°C 10μ 1μ 100n 10n +85°C 1n +25°C –40°C 100p 1n 10n 100n 1μ 10μ I (Amperes) APD Figure 3. I Linearity for Multiple Temperatures, ...
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... MHz GARD PHV APD 5μA 500nA 5nA 50nA 100 1k 10k 100k 1M FREQUENCY (Hz APD PDM Decades from μ PHV APD ADL5317 +85°C +25°C –40°C 1m 10m 1m vs PDM PDM 50μA 10M 100M , for I in APD ...
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... ADL5317 10m 1m 100μA TO 1mA: T-RISE = <0.5μs, T-FALL = <0.5μs 100μ 10μA TO 100μA: T-RISE = <0.5μs, T-FALL = <0.5μs 10μ 1μA TO 10μA: T-RISE = <0.5μs, T-FALL = <0.5μs 1μ 100nA TO 1μA: T-RISE = <1μs, T-FALL = <1.5μs 100n 10nA TO 100nA: T-RISE = <10μs, T-FALL = <15μs ...
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... APD 0.1μF HIGH VOLTAGE SUPPLY Figure 19. Basic Connections At the heart of the ADL5317 is a precision attenuating current mirror with a voltage following characteristic that provides precision biasing at the monitor input. This architecture uses a JFET-input amplifier to drive the bipolar mirror and maintain stable V voltage, while offering very low leakage current at APD the VAPD pin ...
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... Response time for changes in V voltage is primarily a function of the filter capacitance at the GARD pin. See the GARD Interface section for further details. Figure 15 and Figure 17 show the response of the ADL5317 to pulsed input current and V DEVICE PROTECTION Thermal and overcurrent protection are provided with fault detection ...
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... Some applications for the ADL5317 require a variable dc-to-dc converter or alternative variable biasing sources to supply VPHV. For these applications necessary to configure the ADL5317 for supply tracking mode, shown in Figure 22. In this mode, the VSET interface is bypassed. However, the full functionality of the precision current mirror remains available. ...
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... V P_HIGH Figure 23. Interfacing the ADL5317 to the AD8305 for High Accuracy APD Power Monitoring Measured rms noise voltage at the output of the input current is shown in Figure 24 for the and in cascade with the ADL5317. The relatively low noise produced by the ADL5317, combined with the additional noise ...
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... I is fed into an transimpedance amplifier. The Feedback Resistor, R same value as that on the output of the AD8138. Note that any noise at the VSET input is amplified by the ADL5317 with a gain of 30. This noise shows up on VAPD and causes errors while C, when measuring nanoamp current levels. This noise can be filtered by use of the GARD pin ...
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... Additional filtering is possible by installing a capacitor at C10. C10 should equal C7. VPLV, W1, Optional Supply Tracking Mode. Connecting Jumper W2 and opening Jumper W1 places W2, R3 the ADL5317 into supply tracking mode. In this mode, the voltage at VAPD is typically 2 V below 100 kΩ for V PHV VCLH, W1, Extended Linear Operating Range ...
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... ADL5317 R1 OPEN 3 10 VPLV 0Ω VPHV GARD OPEN R6 R11 W1 0Ω 1kΩ 0Ω C7 OPEN 1nF 0.01μF L1 0Ω C10 C9 OPEN OPEN R9 R10 OPEN OPEN VAPD Figure 32. ADL5317 Evaluation Board Silkscreen Rev Page ADL5317 IPDM OUTPUT ...
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... PLANE ORDERING GUIDE Model Temperature Range 1 ADL5317ACPZ-REEL7 –40°C to +85°C 1 ADL5317ACPZ-WP –40°C to +85°C ADL5317-EVAL Pb-free part. © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05456-0-7/05(0) 3.00 0.60 MAX BSC SQ 0.45 ...