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==
RMS =DC !"#$%J= ! 288
Glen Brisebois =Joseph Petrofsky
LTC®1966 !"#$%&'()=RMS = =DC
!"#$%&'()=∆∑ !"* LTC1966
∆∑ !" #$%&'()*#+,J
= R M S = D C !"#$!%&'()*
!"#$%&==RMS =DC !"#$%
=LTC1966 !"#$%&E
DCF ! !"#$%&
!
LTC1966 !"#$ =1a1b = =1c === !" LTC1966 !"#$%&'(
E ! =EMI / = RFI F !"#$= 4 !
!"#$%&'(')*+,"#$%&
1VPEAKLTC1966 !"!#$%&'()
!"#$%&'(LTC1966
= 2 . 7 V= 5.5V !"#$=5.5V
!"# 155µA !=LTC1966 !
!"#$%=0.1µA
J !"#
=RMS =DC !"#$=/ !"# / ! "#$%&'()*+,%-. !"!#$%&'()*+,&-./
08/02/288
VDD
5V
–5V
LTC1966
IN1DCOUTPUTCAVE
1µFIN2
DN288 F01a
VOUTDC + ACINPUTS(1VPEAK
DIFFERENTIAL)OUT RTN
GND ENVSS
VDD
2.7V2.7V/3V CMOS
LTC1966
IN1 DCOUTPUTCAVE
1µFCC
0.1µF
IN2
DN288 F01b
VOUTAC INPUT(1VPEAK)
OUT RTN
GND
EN
VSS
OFFON
VDD
2.5V
–2.5V –2.5V
–2.5V
LTC1966
IN1DCOUTPUTCAVE
1µF
0.1µFX7R
IN2
DN288 F01c
VOUT
DC + ACINPUT
(1VPEAK)OUT RTN
GND
EN
VSS
OFF≥2V
≤–2VON
!"#$%&'()*+,-./0123
!"!#$%&'()*+,-./01
!"#!$%&'()*+,-./%01
!"#$%&'()*+,-./ 012
!"#$%&'( )*&+&,-./
!"#$%& !"#$%&'(=J
!"#$%&'( !"#$%&'(
!"#$%&'()*+, -./.01
LTC1966 !"#$%&'()(*+,
!"#$%&'()*+,-.%=DC
!"#$LTC1966 !"#$%&'(
=/ !"#$%=2
J !"#$%&'()*+,-./0
!"##$%&'()*+,-./0
J !"#$%&'()*+ ,-./0
!"#$%&'()*+, '-./01
!"#$%&'()*+,"#-./01
R M S !"#$%"&'()*+,&'-.
!"#$%&'()*+,-./01
!"#$%&'()*+,-./012
!"#$%&' = L T C 1 9 6 6 !"
!" !"#$%
=====LTC==LT= !"#$%&'(
* !"==6 , 359 , 576 == 6 , 362 , 677 !"#$%&'()
=1a=W==5V !" DC =====RMS DC
=1b=W=2.7V !"!AC !"#=RMS DC
=1c=W =2.5V !" DC !"#$=RMS DC
LINEAR TECHNOLOGY CORPORATION 2002
dn288f 0601 35K • PRINTED IN CHINA
!"#$%&'()RMS=DC !"#$%&'()*+,&-.
!"#$%&'()www.linear.com.cn [email protected]
!"#
http://www.linear.com.cn/go/dnLTC1966
!"#Linear Technology Corporation Ltd.www.linear.com.cn !"#$#% OOP
!" O ONMU
(852)2428-0303 (852)2348-0885
!"#!$%& OOT
! NSNM
200003 (86)21-6375-9478 (86)21-6375-9479
!"#$%Cytech Technology Ltd.www.cytecht.com !"(852)2375-8866 (852)2375-7700 !"(010)8268-4280 (010)8268-4277 !"(028)522-4111 (028)523-9451 !"(023)6860-8938 (023)6860-8938 !"(020)8762-7232 (020)8762-7227 !"(025)481-0877 (025)480-8023 !"(021)6440-1373 (021)6440-0166 !"(0755)386-7431 (0755)386-7954 !"(029)848-1716 (029)848-0985 !"(027)8736-0546 (027)8736-0547
!"#$ ! !"#$%Unique-A Division of Memec (Asia Pacific) [email protected] !"(852)2410-2778 (852)2370-3247 !"(010)8519-1866 (010)8519-1865 !"(028)620-0026 (028)620-0027 !"(021)6317-8226 (021)6317-3446 !"(0755)366-4329 (0755)366-4330 !"(027)8732-2646 (027)8732-2729 !"(0592)516-4701 (0592)516-4702 !"(029)822-9180 (029)825-8595 !"(0532)582-1322 (0532)582-1322
=2=W= !"#$%
=3=W=LTC1966 !
VIN (mV ACRMS)
–1.0LINE
ARIT
Y ER
ROR
(VOU
T m
V DC
– V
IN m
V AC
RMS)
–0.6
–0.2
0.2
–0.8
–0.4
0
100 200 300 400
DN288 F02
500500 150 250 350 450
LTC1966, ∆Σ
60Hz SINEWAVES
CONVENTIONALLOG/ANTILOG
∆-ΣREF
VIN
VOUT
DN288 F03
LPF±1
DV
VIN
OUTα
=/ !"#$%&'()*+,-./ !"#$%&'(")*+'(,-./0
!"#$%&'()*+,-./012
!"#$%&= 10%= 30% !"#$
!=RMS !
!"#$= 0 . 5 % !"#$%&'
!"#$%&'()*+,-./#E
! = DC !"#$%&'()= RMS
=AC !"#= DC F==LTC1966
= ∆∑ !"#$%&'( )*+,-./
LTC1966 RMS DC !"#$
LTC1966 !"#$%&E3F =∆∑
!"#$%&'()(*+,-!".
=V O U T = =∆ ∑ = !"#$%&'()*
E =V I N F2
/VOUT !"#$RMS =DC
∆∑ !"#$%&'(=2 !"#$%&=1
!"#$%&'() *+,-
! "#1 !"#$%&'()*
!"#$%&'()*+,-. !
!"#$%&'()*+,-.- 1= + 1
!"#$%&'()*+,- ./
!"#$%&= R M S !"#$%&'(
!"#$%&!"'LTC1966 !"
!"#$%&'()* =85kΩ !"
!"#$%&'()*+,-./0123
!"#
!"#$%&J= !"#$%&'()*
!"#$%&'()*+,-./0123
!"#$%&'()*+,(-./*
=VIN 4 . VOUT ∆∑ !"#$%=0%
100%
LTC1966 =RMS =DC !"#$ =RMS
!"#$% &'()*+,-./01
!"#$%&'()*+,-./0%12
!"#$%&'()*+,-= LTC1966
!=RMS =DC !"#$%&'(
