Datasheet ADL5315 (Analog Devices) - 7

Data Sheet ADL5315 20 20 15 15 +3 SIGMA 10 10 +3 SIGMA V) V) m 5 5 AVERAGE m FT ( FT ( AVERAGE 0 0 DRI DRI INPT –5 INPT –5 V V –10 –10 –3 SIGMA –3 SIGMA –15 –15 –20 –20 –40
019
–30 –20 –10 0 10 20 30 40 50 60 70 80 90 –40
022
–30 –20 –10 0 10 20 30 40 50 60 70 80 90 TEMPERATURE ( C) TEMPERATURE ( C)
05694- 05694- Figure 9. Temperature Drift of VINPT with VSET = VSREF, 3-σ to Either Side of Mean Figure 12. Temperature Drift of VINPT with VSET = 4 V (External Voltage Source), 3-σ to Either Side of Mean
10 10m 5 300

A TO 3mA: T-RISE = 1m <10ns, T-FALL = <300ns 0 30

A TO 300

A: T-RISE = 100

–5 30nA 3

A 300

A 3mA <10ns, T-FALL = <300ns –10 ) 10

3

A TO 30

A: T-RISE = <10ns, T-FALL = <1

s (A –15 300nA 30

A 3nA I OUT 300nA TO 3nA: T-RISE = 1

<20ns, T-FALL = <5

s –20 30nA TO 300nA: T-RISE = –25 100n <5

s, T-FALL = <25

s NORMALIZED RESPONSE (dB) –30 10n 3nA TO 30nA: T-RISE = <100

s, T-FALL = <200

s –35 1n –40 0 50 100 150 200 250 300 350 400
017
100 1k 10k 100k 1M 10M 100M 1000M TIME (

s) FREQUENCY (Hz)
05694- 05694-008 Figure 10. Small-Signal AC Response of I Figure 13. Pulse Response of IINPT to IOUT for IOUT in Decades from 3 nA to 3 mA INPT to IOUT for IINPT in Decades from 3 nA to 3 mA
4.5 10 T-RISE FOR ALL CURRENTS

200ns ILIM = 48/(RLIM + 3k ) 4.0 V 8 POS = 2.7V, VSET = VSREF 3.5 100nA 6 3.0 T-FALL

9.5ms V 4 POS = 5V, VSET = VSREF 2.5 ) 2 (V 2.0 0 INPT 1.5 V –2 1.0 10

A VPOS = 8V, VSET = VSREF 0.5 T-FALL

180

s –4 0 –6 1mA –0.5 T-FALL

600ns –8 –1.0 ERROR FROM CALCULATED CURRENT LIMIT (%) –10 0 1 2 3 4 5 6 7 8 9 10 0 10 20 30 40 50 60 70 80 90 100 TIME (ms)
05694-018
RLIM (k )
05694-020 Figure 11. Pulse Response of VSET to VINPT Figure 14. Current Limit Error in Percent vs. RLIM for Multiple Voltages (VSET Pulsed from 0 V to 4 V) for Multiple Values of IINPT Rev. A | Page 7 of 17 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BIAS CONTROL INTERFACE NOISE PERFORMANCE MIRROR RESPONSE TIME INPUT CURRENT LIMITING APPLICATIONS AVERAGE POWER MONITORING TRANSLINEAR LOG AMP INTERFACING EXTENDED OPERATING RANGE USING RLIM AS A SECONDARY MONITOR CHARACTERIZATION METHODS EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE