2
LTC1968
1968f
Supply Voltage
V
+
to GND............................................................. 6V
Input Currents (Note 2)..................................... ?0mA
Output Current (Note 3)..................................... ?0mA
ENABLE Voltage......................................... 0.3V to 6V
OUT RTN Voltage........................................ 0.3V to V
+
Operating Temperature Range (Note 4)
LTC1968C/LTC1968I......................... 40癈 to 85癈
Specified Temperature Range (Note 5)
LTC1968C/LTC1968I......................... 40癈 to 85癈
Maximum Junction Temperature......................... 150癈
Storage Temperature Range................ 65癈 to 150癈
Lead Temperature (Soldering, 10 sec)................. 300癈
ORDER PART
NUMBER
LTC1968CMS8
LTC1968IMS8
T
JMAX
= 150癈, ?/DIV>
JA
= 220癈/W
ABSOLUTE AXI U RATI GS   W
W
U
PACKAGE/ORDER I FOR ATIO
U
W
(Note 1)
MS8 PART MARKING
LTAFG
The ?/SPAN> denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25?/SPAN>C. V
+
= 5V, V
OUTRTN
= 2.5V, C
AVE
= 10?/SPAN>F, V
IN
= 200mV
RMS
, V
ENABLE
= 0.5V
unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The temperature grade (I or C) is indicated on the shipping container.
1
2
3
4
ND
IN1
IN2
NC
8
7
6
5
ENABLE
V
+
OUT RTN
V
OUT
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
SYMBOL   PARAMETER
CONDITIONS
MIN   TYP   MAX   UNITS
Conversion Accuracy
G
ERR
Low Frequency Gain Error
50Hz to 20kHz Input (Notes 6, 7)
?.1   ?.3
%
?/DIV>
?.4
%
V
OOS
Output Offset Voltage
(Notes 6, 7)
0.2   0.75
mV
V
OOS
/T   Output Offset Voltage Drift
(Note 11)
?/DIV>
2    10    礦/癈
LIN
ERR
Linearity Error
50mV to 350mV (Notes 7, 8)
?/DIV>
?.02  ?.15
%
PSRRG    Power Supply Rejection
(Note 9)
?.02  ?.20    %/V
?/DIV>
?.25    %/V
V
IOS
Input Offset Voltage
(Notes 6, 7, 10)
0.4    1.5
mV
V
IOS
/T   Input Offset Voltage Drift
(Note 11)
?/DIV>
2    10    礦/癈
Additional Error vs Crest Factor (CF)
CF = 3
60Hz Fundamental, 200mV
RMS
?/DIV>
0.2
mV
CF = 5
60Hz Fundamental, 200mV
RMS
?/DIV>
5
mV
Input Characteristics
V
IMAX
Maximum Peak Input Swing
Accuracy = 1% (Note 14)
?SPAN class="pst LTC1968IMS8-TRPBF_2635133_10">   1    1.05
V
I
VR
Input Voltage Range
?SPAN class="pst LTC1968IMS8-TRPBF_2635133_10">   0
V
+
V
Z
IN
Input Impedance
Average, Differential (Note 12)
1.2
M&
Average, Common Mode (Note 12)
100
M&
CMRRI    Input Common Mode Rejection
(Note 13)
?/DIV>
50    400    礦/V
V
IMIN
Minimum RMS Input
?/DIV>
5
mV
PSRRI
Power Supply Rejection
(Note 9)
?/DIV>
250   700    礦/V
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