Datasheet

LTC2415/LTC2415-1
35
sn2415 24151fs
APPLICATIO S I FOR ATIO
WUU
U
–
+
–
+
U1
LT1219
U2
LT1219
5k
5k
C1
0.1µF
C2
0.1µF
R3 10k
R6 10k
C4 2.2nF
C3 2.2nF
R4
499Ω
R5
499Ω
10V
10V
1000pF
1000pF
1k
1k
R2
27k
10V
DIFFERENCE
AMP
33Ω
100Ω
R1
61.9Ω
0.1%
Q1
22Ω
22Ω
22Ω
22Ω
74HC04
350Ω
×4
5V
5V
2.7k
2.7k
100Ω
100Ω
1.5k
1.5k
ELIMINATE FOR 5V
OPERATION (CONNECT 2.7k
RESISTORS TO 100Ω
RESISTORS)
Q4
Q5
Q2 Q3
5V
POL
Q1:
Q2, Q3:
Q4, Q5:
SILICONIX Si9802DY [phone]
MMBD2907
MMBD3904
0.1µf
0.1µf
3
2
4
5
6
7
SHDN
2
3
4
5
6
7
SHDN
5
6
3
4
30pF
2415 F37
30pF
IN
+
IN
–
REF
+
REF
–
GND
LTC2415/
LTC2415-1
Figure 37. Correlated Double Sampling Resolves 100nV