Datasheet

6
LTC1966
sn1966 1966fas
V
IN1
(mV)
–500
V
OUTDC
– |V
INDC
| (mV)
0.02
0.06
0.10
300
1966 G14
–0.02
–0.06
0
0.04
0.08
–0.04
–0.08
–0.10
–300
–100
100
500
EFFECT OF OFFSETS
MAY BE POSITIVE
OR NEGATIVE
C
AVE
= 1µF
V
IN2
= GND
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Performance vs Large Crest Factors
AC Linearity
DC Linearity
CREST FACTOR
1
OUTPUT VOLTAGE (mV DC)
220
4
1966 G12
190
170
23 5
160
150
230
210
200
180
678
200mV
RMS
SCR WAVEFORMS
C
AVE
= 4.7µF
V
DD
= 5V
5%/DIV
20Hz
100Hz
60Hz
250Hz
FUNDAMENTAL
FREQUENCY
V
IN1
(mV AC
RMS
)
0
V
OUT
(mV DC) – V
IN
(mV AC
RMS
)
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
400
1966 G13
100 200 300 50035050 150 250 450
60HZ SINEWAVES
C
AVE
= 1µF
V
IN2
= GND
Quiescent Supply Currents
vs Supply Voltage
Quiescent Supply Currents
vs Temperature
V
DD
SUPPLY VOLTAGE (V)
0
–25
SUPPLY CURRENT (µA)
0
50
75
100
4
200
1966 G16
25
26
3
15
125
150
175
V
SS
= GND
I
DD
I
SS
TEMPERATURE (°C)
–50
I
DD
(µA)
I
SS
(µA)
160
25
1966 G17
130
–25 0 50
170
150
140
15
0
10
5
75 100 125
V
DD
= 5V, V
SS
= –5V
V
DD
= 5V, V
SS
= –5V
V
DD
= 5V, V
SS
= GND
V
DD
= 5V, V
SS
= GND
V
DD
= 2.7V, V
SS
= GND
V
DD
= 2.7V, V
SS
= GND
Shutdown Currents
vs ENABLE Voltage
ENABLE PIN VOLTAGE (V)
0
250
200
I
DD
I
EN
150
100
50
0
–50
–100
500
250
0
–250
–500
35
1966 G18
12
46
SUPPLY CURRENT (µA)
ENABLE PIN CURRENT (nA)
V
DD
= 5V
I
SS
Input Signal Bandwidth
INPUT SIGNAL FREQUENCY (Hz)
100 1K
OUTPUT DC VOLTAGE (mV)
10
1000
10K 100K 1M
1966 G19
1
100
0.1%
ERROR
1%
ERROR
10%
ERROR
–3dB
Performance vs Crest Factor
CREST FACTOR
1.0
199.8
OUTPUT VOLTAGE (mV DC)
200.0
200.2
200.4
200.6
2.0 3.0
4.0
5.0
1966 G15
200.8
201.0
1.5 2.5
3.5
4.5
20Hz 60Hz
100Hz
200mV
RMS
SCR WAVEFORMS
C
AVE
= 10µF
V
DD
= 5V
O.1%/DIV
Gain and Offset vs V
DD
Supply
V
DD
(V)
2.5
–0.5
GAIN ERROR (%)
OFFSET VOLTAGE (mV)
–0.4
–0.2
–0.1
0
0.5
0.2
3.0
3.5
5.5
1966 G10
–0.3
0.3
0.4
0.1
–1.0
–0.8
–0.4
–0.2
0
1
0.4
–0.6
0.6
0.8
0.2
4.5
4.0
5.0
V
SS
= GND
V
IOS
V
OOS
GAIN ERROR