Datasheet ADL5304 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | High Speed, 200 dB Range, Current to Voltage Logarithmic Converter |
| Seiten / Seite | 32 / 10 — ADL5304. Data Sheet. –10. SE (d. N –20. ESPO –30. ESPO. ED –10. 1mA. –40. … |
| Revision | A |
| Dateiformat / Größe | PDF / 924 Kb |
| Dokumentensprache | Englisch |
ADL5304. Data Sheet. –10. SE (d. N –20. ESPO –30. ESPO. ED –10. 1mA. –40. 100µA. 10µA. MA –15. R –50. 1µA. 100nA. 10nA. –60. –20. 1nA. –70. –25. 100. 10k. 100k. 10M. 100M
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ADL5304 Data Sheet 10 10 0 5 ) ) B B –10 0 SE (d SE (d N –20 N –5 ESPO –30 ESPO R R ED ED –10 IZ 1mA –40 IZ L 100µA L 1mA MA 10µA MA –15 100µA R –50 1µA R O 10µA O N 100nA N 1µA 10nA 100nA –60 –20 1nA 10nA –70 –25
024
100 1k 10k 100k 1M 10M 100M
027
100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz)
09459-
FREQUENCY (Hz)
09459- Figure 21. Small Signal AC Response from INUM to VLOG for INUM in Figure 24. Small Signal AC Response from IDEN to VLOG for IDEN in Decade Steps from 1 nA to 1 mA, IDEN = 100 nA Decade Steps from 10 nA to 1 mA; INUM = 100 nA
100 100 100pA 1nA 100Hz 10nA 1kHz 100nA 10kHz 10 1µA 100kHz ) 10 ) 10µA 1MHz Hz Hz / 100µA 10MHz s / s m 1mA m EQUIP LIMIT 1 V r V r 1 ISE (µ ISE (µ O O 0.1 N T N T SPO 0.1 SPO 0.01 STEP IS ANALYZER ARTIFACT 0.01 0.001 100 1k 10k 100k 1M
028
10M 100p 1n 10n 100n 1µ
029
10µ 100µ 1m FREQUENCY (Hz)
09459-
INUM (A)
09459- Figure 22. Spot Noise Spectral Density at VLOG vs. Frequency for INUM in Figure 25. Spot Noise Spectral Density at VLOG vs. INUM in Decade Frequency Decade Steps from 1 nA to 1 mA (Noise at lower frequencies, where NSD is Steps from 100 Hz to 10 MHz flat, is limited by resistance used to generate dc INUM current. See the Noise vs. Current section for further explanation.)
2.7 40 4 1mA TO 10mA 100nA TO 10nA 2.5 30 1µA TO 100nA 3 100µA TO 1mA 10µA TO 1µA 2.3 ) 100µA TO 10µA 10µA TO 100µA 20 2 1mA TO 100µA 2.1 mV B INPUT /d 1µA TO 10µA R ( 10 1 1.9 RRO (V) 100nA TO 1µA E ; 10mV G 1.7 0 0 B) LO UT d V 10nA TO 100nA P 1.5 R ( UT –10 –1 1nA TO 10nA O 1.3 G RRO E LO –20 –2 V 1.1 –30 –3 0.9 0.7 –4 –40
026
0 10 20 30 40 50 60
033
–2 0 2 4 6 8 10 12 TIME (µs)
09459-
TIME (µs)
09459- Figure 23. Pulse Response for INUM in Decade Steps from 1 nA to 1 mA, Figure 26. Normalized Falling Edge Settling of INUM to Within 1 dB IDEN = 100 nA (Error = 10 mV/dB) Rev. A | Page 10 of 32 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION SIMPLIFIED BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS TERMINOLOGY THEORY OF OPERATION BASIC CONCEPTS OPTICAL MEASUREMENTS Decibel Scaling CIRCUIT DESCRIPTION Bandwidth vs. Current Noise vs. Current Filtering to Improve Noise and Dynamic Behavior Photodiode Bias Reference Outputs Buffer Amplifier Setting the Log Slope and Intercept Slope Inversion Log Ratio Operation APPLICATIONS INFORMATION USING THE ADL5304 Using the Adaptive Bias Summing Node Voltage Leakage VLOG Output Dynamic Response USING A NEGATIVE SUPPLY EVALUATION BOARD SCHEMATIC AND SILKSCREENS OUTLINE DIMENSIONS ORDERING GUIDE
ADL5304 Data Sheet 10 10 0 5 ) ) B B –10 0 SE (d SE (d N –20 N –5 ESPO –30 ESPO R R ED ED –10 IZ 1mA –40 IZ L 100µA L 1mA MA 10µA MA –15 100µA R –50 1µA R O 10µA O N 100nA N 1µA 10nA 100nA –60 –20 1nA 10nA –70 –25
024
100 1k 10k 100k 1M 10M 100M
027
100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz)
09459-
FREQUENCY (Hz)
09459- Figure 21. Small Signal AC Response from INUM to VLOG for INUM in Figure 24. Small Signal AC Response from IDEN to VLOG for IDEN in Decade Steps from 1 nA to 1 mA, IDEN = 100 nA Decade Steps from 10 nA to 1 mA; INUM = 100 nA
100 100 100pA 1nA 100Hz 10nA 1kHz 100nA 10kHz 10 1µA 100kHz ) 10 ) 10µA 1MHz Hz Hz / 100µA 10MHz s / s m 1mA m EQUIP LIMIT 1 V r V r 1 ISE (µ ISE (µ O O 0.1 N T N T SPO 0.1 SPO 0.01 STEP IS ANALYZER ARTIFACT 0.01 0.001 100 1k 10k 100k 1M
028
10M 100p 1n 10n 100n 1µ
029
10µ 100µ 1m FREQUENCY (Hz)
09459-
INUM (A)
09459- Figure 22. Spot Noise Spectral Density at VLOG vs. Frequency for INUM in Figure 25. Spot Noise Spectral Density at VLOG vs. INUM in Decade Frequency Decade Steps from 1 nA to 1 mA (Noise at lower frequencies, where NSD is Steps from 100 Hz to 10 MHz flat, is limited by resistance used to generate dc INUM current. See the Noise vs. Current section for further explanation.)
2.7 40 4 1mA TO 10mA 100nA TO 10nA 2.5 30 1µA TO 100nA 3 100µA TO 1mA 10µA TO 1µA 2.3 ) 100µA TO 10µA 10µA TO 100µA 20 2 1mA TO 100µA 2.1 mV B INPUT /d 1µA TO 10µA R ( 10 1 1.9 RRO (V) 100nA TO 1µA E ; 10mV G 1.7 0 0 B) LO UT d V 10nA TO 100nA P 1.5 R ( UT –10 –1 1nA TO 10nA O 1.3 G RRO E LO –20 –2 V 1.1 –30 –3 0.9 0.7 –4 –40
026
0 10 20 30 40 50 60
033
–2 0 2 4 6 8 10 12 TIME (µs)
09459-
TIME (µs)
09459- Figure 23. Pulse Response for INUM in Decade Steps from 1 nA to 1 mA, Figure 26. Normalized Falling Edge Settling of INUM to Within 1 dB IDEN = 100 nA (Error = 10 mV/dB) Rev. A | Page 10 of 32 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION SIMPLIFIED BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS TERMINOLOGY THEORY OF OPERATION BASIC CONCEPTS OPTICAL MEASUREMENTS Decibel Scaling CIRCUIT DESCRIPTION Bandwidth vs. Current Noise vs. Current Filtering to Improve Noise and Dynamic Behavior Photodiode Bias Reference Outputs Buffer Amplifier Setting the Log Slope and Intercept Slope Inversion Log Ratio Operation APPLICATIONS INFORMATION USING THE ADL5304 Using the Adaptive Bias Summing Node Voltage Leakage VLOG Output Dynamic Response USING A NEGATIVE SUPPLY EVALUATION BOARD SCHEMATIC AND SILKSCREENS OUTLINE DIMENSIONS ORDERING GUIDE