Datasheet LT1178, LT1179 (Analog Devices) - 9

LT1178/LT1179
U U W U APPLICATIO S I FOR ATIO
Please see the LT1078/LT1079 data sheet for applications supply operation and phase reversal protection are information. All comments relating to specifications, single directly applicable to the LT1178/LT1179.
Micropower 100Hz to 1MHz V-to-F Converter
7V TO 10V 1.5M VIN 0V TO 5V 100k 10k 220k* + 1N4148 100Ω A2 1/2 LT1178 50k 100Hz + + NC – LT1004– 2.5 1MHz TRIM 1µF 1µF TRIM 240k 12k TYPICAL Q7 + 47k 2N3904 A1 Q8 1/2 LT1178 2N3906 VDD – 0.01µF 2k CLK CD4024 Q7 74C14 V RESET SS 0.33µF 3pF 10M FOUT 2µF LTC201 IN1 V + LINEARITY IS 0.02% QUIESCENT CURRENT IS 90µA 500pF S1 S3 SUPPLY CURRENT IS 360 IN3 µA AT 1MHz POLYSTYRENE DRIFT ≈ 50ppm/°C D1 D3 *TRW MTR/5 + 120ppm/°C D2 D4 IN4 0.022µF S2 S4 V – IN2 GND LT1178/LT1179 • AI01
W W 1/2 LT1178 SI PLIFIED SCHE ATIC 1/4 LT1179
V+ 10k 10k 2.2k 5.6k 1.3k 6.4k 33k 11.5k 12.5k Q54 Q53 1 2 1 Q6 Q16 Q14 Q15 Q32 Q5 Q52 Q47 Q37 Q46 Q3 Q29 Q24 C1 Q30 V– Q4 50pF 1 3 3k Q40 8.6k Q25 Q35 Q41 Q12 V+ C4 Q26 4 4pF 2.9k Q11 30Ω Q44 C5 1 2.5pF Q27 Q1 600Ω OUT 150k –IN Q21 Q31 C3 J1 Q28 Q18 40pF Q36 Q2 Q33 600Ω V+ Q48 +IN Q22 Q19 Q42 Q39 Q50 Q49 Q9 Q23 Q10 Q17 V+ 9.1k 700k C2 Q7 Q8 Q45 Q51 Q20 175pF Q55 2A 10k Q43 Q34 Q38 2A A 3k 5.35k 6.2k 6.2k 30Ω 700k V– 11789fb 9