LTC1966 Linear Technology, LTC1966 Datasheet - Page 7

• Manufacturer Part Number: LTC1966
• Description: SIGMA RMS-to-DC Converter
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
186
184
182
202
200
198
196
194
192
190
188
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1
Input Signal Bandwidth
1%/DIV
C
AVE
= 2.2 F
INPUT FREQUENCY (kHz)
10
110
100
90
80
70
60
50
40
30
20
10
Common Mode Rejection Ratio
vs Frequency
100
100
W
FREQUENCY (Hz)
1k
1966 G20
V
V
TO DC OUTPUT
DD
SS
5V INPUT CONVERSION
U
1000
= –5V
= 5V
10k
100k
202
201
199
197
195
200
198
196
1966 G23
Bandwidth to 100kHz
0
0.5%/DIV
C
1M
AVE
10
= 47 F
20 30
INPUT FREQUENCY (kHz)
40
50
60
–10
–15
–20
10
–5
5
0
70
0
Output Accuracy
vs Signal Amplitude
–1% ERROR
1% ERROR
80
AC INPUT
V
0.5
90 100
1966 G21
DD
= 3V
V
1
IN1
(V
RMS
–10
1.5
30
25
20
15
10
–5
AC INPUTS = 60Hz
SINEWAVES
V
5
0
IN2
)
–20
AC INPUT
V
DD
DC Transfer Function Near Zero
= GND
V
THREE REPRESENTITIVE UNITS
DC INPUT
= 5V
IN2
V
–15
DD
2
= GND
= 5V
–10
1966 G24
2.5
–5
V
IN1
(mV DC)
0
LTC1966
5
sn1966 1966fas
10
15
1966 G22
7
20