AD8307: 低コスト、DC ～ 500 MHz、 92 dB LOG アンプ

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へいぞうすみだ
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1 AD87 VPS 7.5mA + INP.5kΩ INM AD87 µa /db ENB INT OUT.5kΩ OFS

2 AD87

3 AD87 WARNING! ESD SENSITIVE DEVICE INM OFS OUT AD () INP VPS ENB INT

4 AD ma V ENB Volts ma 5 4 V OUT Volts V ENB Volts µ µ µ

5 AD87..5 INT P IN =.V MHz, INT = 96.5dBm MHz V OUT Volts..5. INT P IN = 4.V MHz, INT = 87.7dBm MHz, INT = 8.9dBm db + INPUT INPUT dbm dbm..5 INT =.V, INT = 86dBm 5MHz V OUT Volts..5 INT INT= 7dBm db. MHz.5 INT INT =.V, INT = 78dBm dbm dbm.5. 5MHz V OUT Volts.5. 4 C +5 C db MHz MHz C dbm dbm

6 AD87 Ch mv V OUT CH V Ch 5mV V OUT CH CH GND V ENB CH CH CH GND GND Ch.V 5ns Ch.V ns V OUT CH Ch mv.5v Ch 5mV V ENB CH CH CH GND CH GND V OUT CH GND Ch.V 5ns Ch.V ns HP8648B RF OUT 5.Ω nf nf VPS = +5.V.µ F AD87 INM OFS OUT HP8A SYH OUT TEK P69A x PROBE OUT TEK744A SCOPE TRIG HP8648B MHz REF CLK PULSE MODE IN VPS = +5.V RF OUT 5.Ω nf nf.µ F INP VSP ENB INT AD87 INM OFS OUT EXT TRIG OUT TEK P64 FET PROBE TRIG HP8A OUT TEK744A SCOPE TRIG

7 AD87 V OUT 5V Y 4V Y V Y V Y V Y V OUT = V IN = V X 4dBc V Y V IN = V X dbc V SHIFT V IN = V X +4dBc V IN = 4 V X +8dBc LOG V IN

8 AD87 V X A A A A V W V OUT (4A-) E K A/ OUTPUT AE K SLOPE = SLOPE = A E K INPUT (A-) E K (A-) E K (A-) E K AE K LOG V IN E K /A N E K /A N E K /A N E K /A N 4

9 AD87 V IN g m A/O AV IN g m A/O A V IN g m A/O A V IN g m A/O A 4 V IN g m V LIM I OUT A/ AE K E K TANH

10 AD87

11 AD87 AD87 4kΩ VPS 7.5mA INP INM.kΩ AD87 µ A /db ENB INT OUT.5kΩ OFS INP INM C P kω C D 4kΩ C M S 6kΩ 6kΩ S ~kω 5Ω Q Q I E.4mA VPS

12 AD87.V Q 5Ω Q Q 6µ A 6kΩ Q4 48kΩ OFS S g m VPS C OFS C HP LGP LGM 5mV/dB OUT C FLT pf µ A/dB -µ A C.5pF.5kΩ.5kΩ C pf R.5kΩ.5kΩ.5kΩ 4mV 8.5kΩ 6kΩ BIAS 6µ A VPS INT

13 AD87.5 MHz.5 MHz 5MHz MHz MHz MHz R T C = C C R IN.kΩ.µ F AD87 4.7Ω INM OFS OUT V P,.7V 5.5V AT 8mA C = C C OUTPUT 5mV/dB

14 AD87 5Ω C Z IN = 5Ω C L M.µ F AD87 4.7Ω INM OFS OUT GAIN INPUT V P,.7V 5.5V AT 8mA 5mV/dB C = C C C = C C.µ F AD87 INM OFS OUT VR 5kΩ.4kΩ 4.7Ω ±db R S V P,.7V 5.5V AT 8mA FOR V P = V, R S = kω V P = 5V, R S = 5kΩ VR 5kΩ mv/db ±%

15 AD87.µ F AD87 INM OFS OUT.4kΩ VR 5kΩ 4.7Ω ±db VR 5kΩ R S AD8 mv/db C V P,.7V 5.5V FOR V P = V, R S = kω V P = 5V, R S = 5kΩ R kω 5mV/dB ±% R.kΩ.µ F AD87 INM OFS OUT VR 5kΩ 6.4kΩ 4.7Ω R S (SEE FIGURE 6) ±db mv/db ±8% VR 5kΩ AD8 R kω N94 5mV/dB R.kΩ R T 5Ω MIN V P,.7 5.5V C.5nF R 5kΩ C µ F.µ F AD87 INM OFS OUT C µ F 4.7Ω VR kω 4Ω INT ±4dB C4 µ F V P C5 µ F 4kΩ VR 5kΩ SLOPE C6.4kΩ µ F 7.kΩ kω 8.6kΩ 4kΩ C8 µ F C7 µ F mv/db 75kΩ 9kΩ

16 AD87 Ω µ kω /W 5pF VR kω INT ±db 64Ω 5pF.µ F AD87 INM OFS OUT nf Ω kω V P nf OUTPUT +5V V OUT Ω L 75nH C 5pF R 8kΩ.65V GPOS VPOS GNEG VOUT AD6 VINP VNEG M R 87kΩ FDBK V N, 5V R Ω R4 464Ω VR 5kΩ INT ±8dB 4.7Ω AD87.µ F INM OFS OUT nf R6 kω R5 kω.5v TO.5V mv/db R7 8.6kΩ V P, +5V.V TO.V

17 AD87 V OUT V IN C µ F C µ F R 5k C 75pF R 5k.µ F +5V 4.7Ω AD87 INM OFS OUT C4 µ F C5 µ F V OUT 5mV/dB V IN +5V AD589 TEMP R kω R 4.7Ω R.kΩ C µ F C.µ F Q N94 VR 5kΩ 5V R5 * VP INT VN AD87 AD8 INM OFS OUT Ω X X Y Y Ω mv/db V VR kω C.µ F R6.4kΩ VR 5kΩ R9 5Ω R7 R8 V OUT R7,R8: 5V

18 AD87 V OUT µ µ m m m V IN db.8.6 V OUT P IN dbm

19 AD87 +V S C µ F C4.µ F A B R 5.Ω C.µ F C.µ F LK AD87 INM OFS OUT LK R 5kΩ LK4 LK LK6 LK5 C5.µ F R.5kΩ C6 nf

20 AD87. (5.) MAX.6 (4.6).5 (.9).4 (.9).48 (8.84) (7.).4 (6.).6 (.5).5 (.8). (.558)..7 (.77).4 (.56) (.54).45 (.5) BSC. (.) MIN.5 (8.5). (7.6).5 (.8).8 (.4).95 (4.95).5 (.9).44 (6.).84 (5.8).968 (5.).89 (4.8) (.5).4 (.).5 (.7) BSC (4.).497 (.8). (.59).94 (.9).9 (.49).8 (.5).98 (.5).75 (.9) 8.96 (.5).99 (.5) x 45.5 (.7).6 (.4) PRINTED IN JAPAN D /99,A

AD8515: 1.8 V 低電力 CMOS レール to レール入力／出力オペアンプ

AD8515: 1.8 V 低電力 CMOS レール to レール入力／出力オペアンプ REV. REVISION 15-6891 1-16-1 3 542 82 532-3 3-5-36 MT 2 6 635 6868 AD8515 1.8V CMOS to 1.8 5V 6mV SOT23 2.7V/µs 5MH to 2pA 1.8V 45µA PCMCIA PDA AD8515 1.8Vto SOT23-5L AD8515 5MHz 1.8V1mV to 2.7V/µs ASIC