Datasheet

32
LTC1966
sn1966 1966fas
 LINEAR TECHNOLOGY CORPORATION 2001
LT/TP 1002 1K REV A • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT
®
1077 Micropower, Single Supply Precision Op Amp 48µA I
SY
, 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
SY
, 800µV V
OS(MAX)
, 2nA I
OS(MAX)
LT1880 SOT-23 Rail-to-Rail Output Precision Op Amp 1.2mA I
SY
, 150µV V
OS(MAX)
, 900pA I
OS(MAX)
LTC2050 Zero Drift Op Amp in SOT-23 750µA I
SY
, 3µV V
OS(MAX)
, 75pA I
B(MAX)
LT2178/LT2178A 17µA Max, Single Supply Precision Dual Op Amp 14µA I
SY
, 120µV V
OS(MAX)
, 350pA I
OS(MAX)
LTC2402 2-Channel, 24-bit, Micropower, No Latency ∆Σ
TM
ADC 200µA I
SY
, 4ppm INL, 10ppm TUE
LTC2420 20-bit, Micropower, No Latency ∆Σ ADC in SO-8 200µA I
SY
, 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.
±2.5V Supplies, Single Ended, DC-Coupled
RMS-to-DC Converter with Shutdown
V
DD
2.5V
–2.5V –2.5V
–2.5V
LTC1966
IN1 DC OUTPUT
C
AVE
1µF
0.1µF
X7R
IN2
1966 TA06
V
OUT
DC + AC
INPUT
(1V
PEAK
)
OUT RTN
GND
EN
V
SS
OFF
≥2V
≤–2V
ON
Battery-Powered Single-Ended AC-Coupled
RMS-to-DC Converter
V
DD
AC INPUT
(1V
PEAK
)
LTC1966
IN1
DC
OUTPUT
C
AVE
1µF
C
C
0.1µF
0.1µF
X7R
IN2
1966 TA07
V
OUT
OUT RTN
GND
GND
LT1175CS8-5
SHDN
V
IN
OUT
9V
SENSE
ENV
SS
TYPICAL APPLICATIO S
U
5V
LTC1966
IN1
V
OUT
4mV
DC
/A
RMS
C
AVE
1µF
IN2
1966 TA09
V
OUT
AC CURRENT
75A MAX
50Hz TO 400Hz
OUT RTN
GND ENV
SS
10Ω
T1: CR MAGNETICS CR8348-2500-N
www.crmagnetics.com
–5V
T1
V
DD
5V
5V
–5V
–5V
LTC1966
IN1
C
AVE
1µF
0.1µF
1.5µF
IN2
1966 TA10
V
OUT
VOLTAGE
NOISE IN
OUT RTN
GND ENV
SS
1mV
DC
1µV
RMS
NOISE
V
OUT
=
–
+
10k
100Ω
100Ω
100k
BW ≈ 1kHz TO 100kHz
INPUT SENSITIVITY = 1µV
RMS
TYP
1/2
LTC6203
RMS Noise Measurement
75A Current Measurement