28
LTC1968
1968f
© LINEAR TECHNOLOGY CORPORATION 2004
LT/TP 0604 1K • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT
®
1077 Micropower, Single Supply Precision Op Amp 48µA I
S
, 60µV V
OS(MAX)
, 450pA I
OS(MAX)
LT1175-5 Negative, –5V Fixed, Micropower LDO Regulator 45µA I
Q
, Available in SO-8 or SOT-223
LT1494 1.5µA Max, Precision Rail-to-Rail I/O Op Amp 375µV V
OS(MAX)
, 100pA I
OS(MAX)
LT1782 General Purpose SOT-23 Rail-to-Rail Op Amp 40µA I
S
, 800µV V
OS(MAX)
, 2nA I
OS(MAX)
LT1880 SOT-23 Rail-to-Rail Output Precision Op Amp 1.2mA I
S
, 150µV V
OS(MAX)
, 900pA I
OS(MAX)
LTC2054 Zero Drift Op Amp in SOT-23 150µA I
S
, 3µV V
OS(MAX)
, 150pA I
B(MAX)
LT2178/LT2178A 17µA Max, Single Supply Precision Dual Op Amp 14µA I
S
, 120µV V
OS(MAX)
, 350pA I
OS(MAX)
LTC1966 Precision Micropower ∆Σ RMS-to-DC Converter 155µA I
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LTC1967 Precision Extended Bandwidth RMS-to-DC Converter 320µA I
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LTC2402 2-Channel, 24-bit, Micropower, No Latency ∆Σ
TM
ADC 200µA I
S
, 4ppm INL, 10ppm TUE
LTC2420 20-bit, Micropower, No Latency ∆Σ ADC in SO-8 200µA I
S
, 8ppm INL, 16ppm TUE
LTC2422 2-Channel, 20-bit, Micropower, No Latency ∆Σ ADC Dual channel version of LTC2420
No Latency ∆Σ is a trademark of Linear Technology Corporation.
Audio Amplitude Compressor
TYPICAL APPLICATIO
U
–
+
–
+
–
+
8
7
9
2
1
14
R4
2.49k
R1
100k
V
IN
R3
7.5k
R5
5.9k
R15
47Ω
V
FS
R2
1k
C2
0.47µF
C1
47nF
13
A1
A2
V
+
LT1256
V
–
V
+
V
OUT
C3
0.1µF
R13
3.3k
R14
3.3k
12
R
FS
10
R
C
5
V
C
R6
2k
R10
200k
R12
1k
R9
10k
R8
15k
V
+
LT1636
ATTENUATION CONTROL
GAIN OF 4
ATTENUATE
BY 1/4
V
+
V
–
R7
5.9k
3
C5
0.22µF
C4
1µF
LTC1968
1968 TA07
V
DD
GND EN
V
OUT
OUT RTN
IN1
IN2
0.1µF
